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1 2

Product Corresponding Standards Reference List of World Manufacturers' Alloys

NSSMC Standard Number Features Density ASTM BS DIN/SEW AMS JIS Remarks Haynes VDM Creusot-Loire Sandvik Uddeholm Avesta Special

Metals Carpenter Remarks

Invar Alloy NSSMC-NAR-E-360 3 Fe-36% nickel alloy, featuring a lower thermal-expansion coefficient. 8.2 （PD）

Co

rros

ion

Res

ista

nce

Allo

ys

NIC

KEL

-BA

SE A

lloys

NSSMC-NAR-N201 4 Pure nickel for industrial use, with high corrosion resistance, excellent high temperature strength and low temperature toughness. 8.89 B162 UNS N02201 NW2201

NSSMC-NAR-66NEL 5 Nickel-copper alloy highly resistant to sea water, alkalis and fluoric acid. 8.83 B127 UNS N04400 NA13 2.4360 4544 NCuP Nickel Alloy

400 Nicorros Monel Alloy 400

NSSMC-NAR-25-50MTi(NSSMC-NAR-B) 6 Super corrosion resistant, high quality alloy with good

weldability fabrication properties. 8.20 B582 UNS N06975

IRO

N-B

ASE

Allo

ys /

STA

INLE

SS S

TEE

L

NSSMC-NAR-HCR-18 7 Austenitic stainless steel, highly resistant to sulfer dewpoint corrosion and sulfuric acid corrosion. 7.98

NSSMC-NAR-825 8 High quality alloy with excellent resistance to mixed acid sulfuric and phosphoric acid and to stress corrosion cracking. 8.14 B424 UNS N08825 NA16 2.4858 NCF825 Nickel Alloy

825Nicrofer

4221 Alloy 825 Incoloy Alloy825

NSSMC-NAR-20-3 9 High nickel stainless steel with excellent resistance to sulfuric and to stress corrosion cracking. 8.05 A240 UNS N08020

B463 UNS N08020Nicrofer

3620 20Cb3

NSSMC-NAR-20-25MTi(NSSMC-NAR-A) 10 High nickel austenitic stainless steel highly resistant to pitting

water. 8.05 B620 UNS N08320 HastelloyM-532

JessopJS700

NSSMC-NAR-AC-3 11 Super austentic stainless steel excellent resistant to sea water. 8.06 B625 UNS N08925 SUS836L

NSSMC-NAR-AC-4 11 Super austentic stainless steel excellent resistant to sea water. 8.05

NSSMC-NAR-20-25LMCu 13 High nickel stainless steel with excellent resistance to corrosion and pitting. 8.05 A240 UNS N08904 1.4539 SUS890L Alloy

No.904LCronifer1925LC UranusB6 2RK 65 UHBStainless

904L 254SLX Alloy904L

NSSMC-NAR-310ELC 14 Extremely low carbon 25Cr-20Ni steel with resistance to temperature and highly concentrated alkali conditions. 8.03

NSSMC-NAR-SN-1 15 Stainless steel resistant to concentrated nitric acid. 7.68

NSSMC-NAR-SN-3 15 Stainless steel resistant to concentrated nitric acid. 7.64

NSSMC-NAR-SN-5 15 Duplex stainless steel resistant to concentrated nitric acid. 7.80

NSSMC-NAR-DP-3 17 Duplex stainless steels suited for uses in chloride solutions and/or sea water. 7.80 A240 UNS S31260 SUS329J4L Uranus 52

NSSMC-NAR-DP-8 17 Duplex stainless steels suited for uses in chloride solutions. 7.80 A240 UNS S31803 1.4462 SUS329J3L Cronifer2205LCN

Uranus 45N SAF 2205 2205

NSSMC-NAR-DP-12 17 Duplex stainless steels suited for uses in Urea plants. 7.80 A240 UNS S31260 SUS329J4L Uranus 52

NSSMC-NAR-F 17 Duplex stainless steels suited for uses in chloride solutions. 7.80 A240 UNS S32900 1.4460 SUS329J1 10RE21 44LN 453S

NSSMC-NAR-DP-3N 19 Excellent corrosion resistant, duplex stainless steel use in chloride solutions and/or hot-sea water. 7.80 A240 UNS S31260 SUS329J4L Uranus 52

NSSMC-NAR-DP-3W 19 Excellent corrosion resistant, Super duplex stainless steel use in chloride solutions and/or hot-sea water. 7.94 A240 UNS S39274

NSSMC-NAR-DP-28W 20 Exellent corrosion resistance, duplex stainless suited for use in urea-carbamete. 7.86 A240 UNS S32808

Hea

t R

esis

tanc

e A

lloys NIC

KE

L-B

ASE

Allo

ys NSSMC-NAR-600 21 Nickel base alloy resistant to corrosion caused by temperature alkali or water as well as to oxidation. 8.42 B168 UNS N06600 NA14 2.4816 5540 NCF600 Nickel Alloy

600Nicrofer

7216,7216HSANICRO

71Inconel

Alloy 600Pyromet

600

NSSMC-NAR-601 22 Nickel-based alloy with excellent resistance to high temperature oxidation and scaling. 8.10 B168 UNS N06601 2.4851 5870 NCF601 Nicrofer

6023Inconel

Alloy 601

IRO

N-B

ASE

Allo

ys /

STA

INLE

SS S

TEE

L NSSMC-NAR-800 23 Heat resistant alloy with remarkable strength under temperature. Resistant to carburization, nitriding and oxidation. 8.02 A240 UNS N08800

B409 UNS N08800 NA15 1.4876 5871 NCF800 Nickel Alloy800

Nicrofer3220 SANICRO

31Incoloy

Alloy 800Pyromet

800

NSSMC-NAR-800H 23 Heat resistant alloy with remarkable strength under temperature. Resistant to carburization, nitriding and oxidation. 8.02 A240 UNS N08810

B409 UNS N08810 1.4876 NCF800H Nickel Alloy800H

Nicrofer3220H

SANICRO 31

Incoloy Alloy 800H

NSSMC-NAR-AH-1 24 Austenitic stainless steel, specifically developed for uses corrosive environments at higher temperatures. 7.93

NSSMC-NAR-AH-4 25 Heat-resistant austenitic stainless steel with excellent mechanical properties at high temperature. 7.88 A240 UNS S31060

NSSMC-NAR-AH-7 26 Heat-resistant austentic stainless steel with exellent mechanical properties and oxidation resistance of high temperature and high humidity. 7.78

Note:Hastelloy is a trademark of Haynes International Inc.; Cronifer, Nicrofer, and Nicorros are trademarks of ThyssenKrupp VDM; Uranus is a trademark of Creusot-Loire Industrie; SAF2205 and SANICRO are trademarks of Sandvik Inc.; Incoloy, Inconel and Monel are trademarks of Special Metals Corp.; Carpenter and Pyromet are trademarks of Carpenter Technology Corp.; UHB is a trademark of Uddeholm Steel AB; JS700 is a trademark of Jessop Steel Company.

3 4

Pure nickel for industrial use, with high corrosion resistance and excellent high temperature strength and low temperature toughness. Nickel 201, JIS NW2201ASTM(ASME) UNS N02201

plate, sheet, strip

Soda and food processing equipment, heat exchanger, and electronic tuberechargeable batteries

1. Highly resistance to sea water.2. Highly resistance to pitting, crevice corrosion and stress corrosion cracking due to chlorides.3. Applicable under reducing and oxidizing atomosphere.4. Resistance to alkali. Shows particularly high corrosion resistance to caustic soda.

0.020.070.5

300600

1,219

1,000 2,000 3,000

1,524

2.0

3.0

30.0

Width（mm）

Thickness（mm）

C max Si Mn Ni Cu Fe

0.02 0.1 0.2 99.5 0.01 0.15

Annealed 0.2%Yield strength（N/mm2） Tensile strength（N/mm2） Elongation（％）

Annealed ≧ 80［177］ ≧ 345［401］ ≧ 40［54］

CHEMICALCOMPOSITION(typical example: %)

MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

2.5350

300

250

200

150

100

50

0

2

1.5

1

0.5

00 20 40 60 80 100 10 20 30

30℃

HCI (%)NaOH (%)

mm/y

Temperature (℃)

Corrosion rate of NSSMC-NAR-N201in hydrochloric acid.

Iso-corrosion rate curve of NSSMC-NAR-N201in caustic soda (mm/y)

40

1.25

0.25

0.025

＜0.025

＜0.025

0.025～0.25

0.25～1.25

No air (N2 saturation)5m/min, for 48 hrs.

Boiling point curve

Melting point curve

Air saturation7m/min, for 24 hrs.

1. Very low thermal expansion coefficient at lower to room temperatures (approx. 10% that of SUS304).2. Highly stable austenitic structure with soft and minimum work hardening features, contributing to a higher malleability.

3.0

1,000 2,000 3,000

0.3

30.0

1,000

Width（mm）

Thickness（mm） 1,524

30.0

Fe-36% nickel alloy, featuring a lower thermal expansion coefficient.

plate, sheet, strip

Precision Equipment and Instruments, Bimetals, LNG Containers


PHYSICALPROPERTY

MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

NSSMC Standard（NSSMC-NAR-E-360〈Invar Alloy〉）

NSSMC Standard（NSSMC-NAR-N201）

C max Ni+Co

0.030 36

Coefficient of Thermal Expansion（×10-6/℃）

≦ 2.0（20～ 100℃）

0.2%Yield strength（N/mm2） Tensile strength（N/mm2） Elongation（％） Hardness（HRB）

≧ 240［304］ ≧ 440～ 550［461］ ≧ 30［37］ 65～ 82［72］

40018

16

14

12

10

8

6

4

2

0

300

200

1000 10 20 30

Cold Rolling Ratio (%)

Temperature (℃)

Hardness (Hv)

Coefficient of Thermal Expantion (×10

－6 /℃)

Varying hardness with cold rolling ratioThermal expansion coefficientsagainst temperatures

40 50 600

－200

0 0 30 30 30 30 30〜

－100〜

100〜

300〜

200〜

400〜

500〜

SUS304

SUS304

E360

E360

5 6

High quality alloy with super corrosion resistant and good weldability and fabrication properties. ASTM(ASME) UNS N06975

plate, sheet

Chemical equipment for high concentration chlorides, sea water equipment, pollution prevention plants, equipment for acid and alkali reaction, heat exchangers for highly corrosive chemicals

1. Highly resistance to acids and alkalis, as well as to various types of local corrosion.2. Completely immune to stress corrosion cracking by chlorides.3. Highly resistance to pitting and crevice corrosion in high temperature salt water and chloride solutions.4. Good weldability, excellent corrosion resistance of heat-affected zone.

3.0

1,000 2,000 3,000

1,524

30.0

Width（mm）

Thickness（mm）

C max Cr Ni Mo Cu Ti

0.03 25 50 6 1 1


205～ 345［326］ 640～ 740［688］ ≧ 45［55］ ≦ 87［85］


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

0.5

0.4

0.3

0.2

0.1

0.90

0.80

0.70

0.60

0.50

0.40

0.30

0.20

0.10

0

0 20 40 60 80 100－0.10 0

Solution

120min

Heating duration

3min

30min

Sensitizing temperature (℃)

Heat sensitizing test using a solutionof 10% HNO3, and 3% HF at 60℃

Temperature (℃)

SUS316

20-25MTi

25-50MTi

Pitting potential-temperature curve in0.5M NaCl solutions

Corrosion rate (g/m

2 ・h)

Pitting potential Vc' (vs. SCE)

650 700 800 900 1050

Nickel-copper alloy with high resistant to sea water, alkalis and fluoric acid.ASTM(ASME) UNS N04400

plate, sheet

Sea water desalination and other marine use facilities, chemical processing equipments, oil refinery equipment, paper pulp manufacturing equipment

1. Resistance to sea water.2. Highly resistance to pitting, crevice corrosion and stress corrosion cracking by chlorides.3. Excellent resistance to acids, especially to hydrofluoric acid and fluoric gas.4. Highly resistance to alkalis. Corrosion resistance to caustic soda of concentration up to 70%.5. Highly well ductile, fabricability and machinability.

1,000 2,000 3,000

1,5243.0

30.0

Width（mm）

Thickness（mm）

C max Si max Mn Ni Cu Fe

0.3 0.5 1 66 Bal. 1


≧ 165［282］ ≧ 490［549］ ≧ 35［43］ ≧ 65～ 90［74］


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

100

75

50

25

00 10

0.1

HCI (%)

Iso-corrosion rate curve in sulfulic and hydrochloric acid solutions (mm/y)

H2SO4 (%)

Temperature (℃)

1.0

0.5

b.p

20 30 40

150

100

75

125

50

25

00 20

0.1Temperature (℃)

1.0

0.5

b.p

40 60 80 100

NSSMC Standard（NSSMC-NAR-66NEL）

NSSMC Standard（NSSMC-NAR-25-50MTi, NSSMC-NAR-B）

7 8

plate, sheet

Phosphoric acid manufacturing plant, acid bath equipment parts, chemical equipment, heating element

1. Excellent resistance to various types of corrosion.2. Immune to stress corrosion cracking by chloride ions because of the high nickel content.

Molybdenum and copper increases the resistance to non oxidizing acids, and chromium to oxidizing acids.3. Extremely resistance to corrosion by sulfuric acid, phosphoric acid and sea water.4. Resistance to pitting and intergranular corrosion even aftersensitizing treatment (650～ 760℃ ).

1,000 2,000 3,000

1,5243.0

30.0

Width（mm）

Thickness（mm）

High quality alloy with excellent resistance to mixed acid of sulfuric and phosphoric and to stress corrosion cracking.ASTM(ASME) UNS N08825


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C max Cr Ni Mo Cu Ti Al

0.05 21 42 3 2.2 1 0.05


≧ 235［379］ ≧ 580［668］ ≧ 30［47］ ≦ 96［81］


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

Austenitic stainless steel with high resistant to sulfer dewpoint corrosion and sulfuric acid corrosion.

plate, sheet, strip

1. Exhaust gas equipments (ex. boiler etc.) that burns sulfer containing fuels

2. Sulfuric acid manufacutuaring equipment

3. Exhaust gas desulfurizer4. Lining of chimney

1. Excellent corrosion resistance to sulfuric acid solution equal to high Cr-Ni alloys. 2. Performance more than the equal to SUS316L for a local corrosion by chlorides.3. Good weldability as well as current austenitic stainless steel, using welding consumables Inconel 625 or Hastelloy C-276.

0.8

1,000 2,000 3,000

1,000

1,5243.0

30.0

Width（mm）

Thickness（mm）

C max Cr Ni Mo Cu N max

0.03 18.8 15.6 3.4 4.2 0.045


≧ 175［295］ ≧ 480［539］ ≧ 35［43.6］ ≦ 90［82］

HCR-18

SS400

CR1A

SUS316L

NCF825

HCR-18

SS400

CR1A

SUS316L

NCF825

HCR-18

SS400

CR1A

SUS316L

NCF825

40

30

20

10

0

10

<0.5

20

100

100050%H2SO4, 70℃ 70%H2SO4, 100℃ 80%H2SO4, 140℃

0HCR-18 SS400 CR1A

Corrosion Rate (g/m

2 ・h)

Corrosion Rate (g/m

2 ・h)

Results of hydrochloric acid corrosion testsResults of sulfuric acid corrosion tests

SUS316L NCF825

5%HCl, 40℃

120

100

80

60

40

20

0

0 10 20

HCI (%)

Temperature (℃)

Temperature (℃)

0.2

1.0

b.p

0.5

30 40

120

100

80

60

40

20

0

0 20 40

H2SO4 (%)

0.1

1.0

b.p

0.5

60 80 100

Iso-corrosion rate curve in sulfuric acid and hydrochloric acid solutions (mm/y)

NSSMC Standard（NSSMC-NAR-HCR-18）

NSSMC Standard（NSSMC-NAR-825）

9 10

High nickel austenitic stainless steel with high resistance to pitting and sea water.ASTM (ASME) UNS N08320

plate, sheet

Various types of sea water equipment, pollution-prevention plants, equipment for handling acids and alkalis, heat exchangers

1. Highly resistance to pitting and crevice corrosion by sea water and hot concentrated, salt solution.2. Strong passivating tendency and excellent corrosion resistance in various types of chemical processes using phosphoric, fluoric, acetic and other acids.3. Remarkably resistance to corrosion in high concentration alkali solutions.4. Fabrication and welding readily, with little deterioration of corrosion resistance.

1,000 2,000 3,000

1,5243.0

30.0

Width（mm）

Thickness（mm）


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C max Cr Ni Mo Ti

0.05 22 26 5 0.3


≧ 195［315］ ≧ 540［589］ ≧ 35［50］ 71～ 90［85］


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C max Cr Ni Mo Cu Nb min

0.07 20 33 2.5 3 C×8


≧ 245［327］ ≧ 550［625］ ≧ 30［44］ ≦ 95［83］

High nickel stainless steel with excellent resistance to sulfuric acid and to stress corrosion cracking.ASTM (ASME) UNS N08020

plate, sheet

Chemical processing equipment, stack-smoke desulfurization equipment, pulp processing machinery, sea water desalination equipment, nuclear fuel waste disposal equipment

1. Excellent corrosion resistance to sulfuric acid solution. NSSMC-NAR-20-3 is strongly resistance to stress corrosion cracking by hot sulfuric acid solution.2. Highly resistance to nitric, phosphoric and various organic acids.3. Excellent resistance to alkalis. Resists to 50% caustic soda up to the boiling point.4. Excellent resistance to sea water.

1,000 2,000 3,000

1,5243.0

30.0

Width（mm）

Thickness（mm）

1.0

1.0

0.5

0.1

b.p

0.8

0.6

0.4

0.2

0

0 20 40 60

Time (Hr)

H2SO4 (%)

Corrosion rate (g/m

2 ・h)

Temperature (℃)

80 100 120

Corrosion rate-time curves in 3% H2SO4 at 100℃Iso-corrosion rate curve of NSSMC-NAR-20-3in sulfuric acid solution (mm/y)

140

120

100

80

60

40

20

0

0 20 40 60 80 100

0.800.90

0.80

0.70

0.60

0.50

0.40

0.30

0.20

0.10

0

－0.10

0.60

0.40

0.20

0

－0.20

00 20 40 60 80 100

1 2 3 4 5 6Mo (%)

Temperature (℃)

SUS 316

SUS 304

20-25MTi



Relationship between potential forpitting of welded portion and surfacetreatment. 0.6N NaCl, 80℃, pH = 3

Pitting voltage-temperature curve in0.5M NaCl solutions

Parent material 21 Cr-25Ni-MoWelding metal, acid washWelding metal, 03# GrindingWelding metal, Welding only

NSSMC Standard（NSSMC-NAR-20-3）

NSSMC Standard（NSSMC-NAR-20-25MTi, NSSMC-NAR-A）

11 12

plate, sheet

Sea water heat exchanger, Desalinization of sea water plant, Salt manufacture equipment, Paper manufacturing plant, Pulp bleaching equipment, Exhaust gas desulfurizer, Acid-proof apparatus, Various types of equipment for handling acids (Chloride environment)

1. Excellent resistance to sea water. Pitting corrosion in hot sea water is more excellent than duplex stainless steel : SUS329J4L.2. Excellent resistance to acids, and stress corrosion cracking by chlorides is more excellent than SUS316.3. Higher mechanical strength than SUS316.4. Good weldability as well as current austenitic stainless steel, using welding consumables Inconel 625 or Hastelloy C.

1,000 2,000 3,000

1,5243.0

30.0

Width（mm）

Thickness（mm）


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C max Cr Ni Mo Cu N JIS Spec. ASTM Spec.

NSSMC-NAR-AC-3 0.02 20.0 25.0 6.2 1.0 0.14 SUS836L UNS N08925

NSSMC-NAR-AC-4 0.03 23.0 21.0 6.1 ─ 0.25 ─ ─

0.2%Yield strength（N/mm2） Tensile strength（N/mm2） Elongation（％） Hardness（HRB）NSSMC-NAR-AC-3 ≧ 245［325］ ≧ 590［673］ ≧ 40［58］ ≦ 94［83］NSSMC-NAR-AC-4 ≧ 300［372］ ≧ 650［735］ ≧ 35［48］ ≦ 100［90］

Super austenitic stainless steel suited for use chloride solutions and/or sea water.

6

41.0

0.8

0.6

0.4

0.2

0

2

00 0.1

N (%)Temperature (℃)

C-276625

29-4254SMO

20-25-625-4-4

20-25-4.5-Cu255

20-25-5DP3(329J4L)

447J1

825

316L444

DP8(329J3L)XM27329J1

DP1(18-5-3)

(Double-U-bend test piece, Aerated synthetic sea waterconcentrated 4 times, 125℃, 720h)

Effect of N contents on crevice corrosionElectrode potential for pitting corrosion in20000 ppm cl- solution

Cr＋3Mo＋10N (%)Pitting corrosion potential of various stainless steels and high Cr-Ni alloys

(Sythetic sea water: ASTM-D-1141, Deaerated 80℃, 20mV/min.)

Crevice Corrosion Loss (mg)

Pitting Corrosion Potential (vs. SCE)


Base metal

weld metal(Weld Material: Inconel 625)

22Cr-25Ni-5.5Mo-0.8Cu-N(%)

0.29080706050 0.3

AC-4AC-3DP-3SUS 316L

1.0

0.8

0.6

0.4

0.2

0

20 30 40 50 70

: Austenite

: Duplex (Cr)-(Ni)-(Mo)

: FerriteAC-3

AC-4

Chemical composition of welding materials for NSSMC-NAR-AC-3 and NSSMC-NAR-AC-4 (%)

ASTM UNS No.Nb＋ TaWFeMoCrNiWelding consumables

N066254─＜ 5922BAL.Inconel 625

N06022─341322BAL.Hastelloy C-22

N10276─451616BAL.Hastelloy C-276

NSSMC Standard（NSSMC-NAR-AC-3, AC-4）

13 14

High nickel stainless steel with excellent resistance to acid corrosion and pitting. ASTM(ASME) UNS N08904

Chemical processing equipment, sea water desalination plant, stack-smoke desulfurization, waste incineration, sewage disposal and other anti-pollution plants

1. Greater resistance to sulfuric acid, phosphoric acid, acetic acid and other nonoxidizing acids than Type 316 and Type 317.2. Highly resistance to pitting, crevice corrosion and stress corrosion cracking due to chlorides.3. Excellent resistance to sea water.4. Good fabricability and weldability.

1,000 2,000 3,000

1,5243.0

30.0

Width（mm）

Thickness（mm）

Extremely low carbon 25Cr-20Ni alloy with resistance to high temperature and alkalis.

plate, sheet, strip

Various brine electrolytic bath, caustic soda manufacturing equipment, nitric acid manufacturing plant, and various nitric acid processing equipment

1. High corrosion resistance to high concentrated alkali solutions at high temperature and excellent resistance to stress corrosion cracking.2. Strong resistance to intergranular corrosion in highly concentrated nitric solutions.

1,000 2,000 3,000

1,5243.0

30.0

Width（mm）

Thickness（mm）

0.3 1,219


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C max Cr Ni Mo Cu

0.02 20 25 4.5 3


≧ 215［298］ ≧ 490［559］ ≧ 35［50］ 71～ 90［78］

plate, sheet


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C max Si Mn Cr Ni

0.02 0.6 1.4 25 20


≧ 175［303］ ≧ 480［559］ ≧ 40［46］ ≦ 90［83］

120

100

80

60

40

20

0.1

Iso-corrosion rate curve in sulfulic and hydrochloric acid solutions (mm/y)

0.1

0.5

0.5

HCI (%)H2SO4 (%)

1.0

1.0

b.p

b.p

0

0

120

140

100

80

60

40

20

0

0 20 40 60 80 100 10 20 30 40

Temperature (℃)

Temperature (℃)

120

100

80

60

40

0.8

0.6

0.4

0.2

0

50 60 700 10 20 30 40 50HNO3 (%)NaOH (%)

Temperature (℃)

Corrosion rate (g/m

2 ・h)

Corrosion rate curve in nitric acidCorrosion rate curve in caustic soda (boiled)

80 90

SUS 304L310 ELC

＜0.1g/m2・h310ELC

SUS304L

b.p

NSSMC Standard（NSSMC-NAR-20-25-LMCu）

NSSMC Standard（NSSMC-NAR-310ELC）

15 16

Stainless steel resistant to nitric acidNew materials developped jointry by Sumitomo Chemical Co., Ltd.

STEEL TYPESNSSMC-NAR-SN-1Excellent corrosion resistance against all concentrations of nitric acid, includingconcentrated nitric acid below 60℃ .

NSSMC-NAR-SN-3Higher resistance to corrosion by boiling nitric acid over 85% concentration.

NSSMC-NAR-SN-5Duplex stainless steel, featuring higher strength and also excellent resistance to medium concentration nitric acid.

plate, sheet

NSSMC-NAR-SN-1Nitric acid manufacturing plants, 98% Nitric acid storage and transportation tanks. Nitric and sulfuric acid mixture storage tanks

NSSMC-NAR-SN-3Heat exchangers for concentrated nitric acid

NSSMC-NAR-SN-5Heat exchangers for medium concentration nitric acid, and related towers

1,000 2,000 3,000

1,5243.0

30.0

Width（mm）

Thickness（mm）


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C max Si Mn Cr Ni N Other Elements

NSSMC-NAR-SN-1 0.02 4.3 1.0 17 14.0 ─ Nb add

NSSMC-NAR-SN-3 0.02 6.0 0.7 11 16.5 ─ Ti:0.1, Zr:0.5

NSSMC-NAR-SN-5 0.02 0.6 1.0 27 8.4 0.10

0.2%Yield strength（N/mm2） Tensile strength（N/mm2） Elongation（％） Hardness（HB）NSSMC-NAR-SN-1 ≧ 245［328］ ≧ 590［718］ ≧ 40［57］ 149～ 241［188］NSSMC-NAR-SN-3 ≧ 245［329］ ≧ 590［738］ ≧ 40［57］ 149～ 241［183］NSSMC-NAR-SN-5 ≧ 390［560］ ≧ 590［751］ ≧ 18［33］ ≦ 277［228］

120

100

80

60

120

100

80

60

4040 50 60 70 80 90

200

0.1

0.51

Liquidus

Corrosion rate (mm/year) diagram ofNSSMC-NAR-SN-1 (subjected to sensitizationfor 2 hours at 650℃) immersed in nitric acid

Atmospheric

boiling poin

t

curve

Liquidus

Atmospheric boiling

point

curve

20 40HNO3 (%)

HNO3 (%)

Temperature (℃)

Temperature (℃)

Temperature (℃)

60 80 100

120

100

80

60

4040

200

0.1

0.3

Liquidus

Corrosion rate (g/m2・h) diagram ofNSSMC-NAR-SN-3 (subjected to sensitizationfor 2 hours at 650℃) immersed in nitric acid

Corrosion rate (g/m2・h) diagram of NSSMC-NAR-SN-5immersed in nitric acid

Applicable regions of nitric acid corrosion resistant stainless steels at various temperatures and concentrations

Atmospheric

boiling poin

t

curve

20 40HNO3 (%)

Temperature (℃)

60 80 100

120

100

80

60

40

2020 40 60 80 1000

140

［Materials］ Sensitised at 650℃ for two hours［Test period］ 20 hours × 5 periods［Region］ ①ー④, ⑥, ⑦：≦0.1mm/year ⑤：≦0.3mm/yearHNO3 （％）

Boling Cu

rve

①

②③

④ ⑤

⑥ ⑦

①304L304ELSN-1SN-3SN-5310ELC310Nb

②304L304ELSN-1SN-5310ELC310Nb

③304L304ELSN-5310ELC310Nb

④SN-5310ELC310Nb

⑤SN-3

⑥SN-1SN-3

⑦SN-3

Region

310ELC

SN-5

304 L〈0.1g/m2・hr〉

NSSMC Standard（NSSMC-NAR-SN-1, SN-3, SN-5）

17 18

Corrosion-resistant duplex stainless steels suited for uses in chloride solutions and/or sea water.

plate, sheet, strip

NSSMC-NAR-DP-3Heat Exchangers for Marine Use, Common Salt Manufacturing Plants, Pulp and Paper Plant, Chemical Plant

NSSMC-NAR-DP-8Water Reservoirs, Drilling and Excavating Plant, Oil Exploration Equipment, Heat Exchangers

NSSMC-NAR-DP-12Urea Plants

NSSMC-NAR-FGas Stack Desulfurizatioin Facilities, Water Gate Components, Chemical Plant Equipment

NSSMC-NAR-DP-3Higher resistance to pitting corrosion and SCC in sea water, at higher temperatures.

NSSMC-NAR-DP-8Higher resistance to pitting corrosion and SCC particularly in lower concentration chloride solutions as opposed to sea water.

NSSMC-NAR-DP-12Excellent resistance to intergranular corrosion of welded heat affected zone for Urea Plants.

NSSMC-NAR-FSuperior to SUS316 in resistance to pitting corrosion and SCC especially in lower concentration chloride solutions as opposed to sea water.

For Use in the presence of C1- Ion: NSSMC-NAR-DP-8 and NSSMC-NAR-FFor Use with Sea Water: NSSMC-NAR-DP-3

1,000 2,000 3,000

1,524DP-3

1,000

1,219

40.0

30.0

3.0

80.0

60.0

Width（mm）

Thickness（mm）


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C Cr Ni Mo N Other Elements JIS Spec. ASTM Spec.

NSSMC-NAR-DP-3 0.02 25.2 7.2 3.2 0.14 Cu:0.5, W:0.3 SUS329J4L UNS S31260

NSSMC-NAR-DP-8 0.02 22.0 5.5 3.0 0.14 ─ SUS329J3L UNS S31803

NSSMC-NAR-DP-12 0.02 25.3 7.2 2.7 0.14 Cu:0.3, W:0.2 SUS329J4L UNS S31260

NSSMC-NAR-F 0.02 25.0 5.5 1.7 0.09 ─ SUS329J1 UNS S32900

0.2%Yield strength（N/mm2） Tensile strength（N/mm2） Elongation（％） Hardness（HB）NSSMC-NAR-DP-3 ≧ 450［608］ ≧ 620［813］ ≧ 18［31］ ≦ 302［247］NSSMC-NAR-DP-8 ≧ 450［551］ ≧ 620［795］ ≧ 25［32］ ≦ 290［240］

NSSMC-NAR-DP-12 ≧ 485［627］ ≧ 690［764］ ≧ 20［28］ ≦ 290［241］NSSMC-NAR-F ≧ 390［571］ ≧ 590［769］ ≧ 20［32］ ≦ 261［238］

0.01 1 10 100 1000

0.5

0.4

0.3

0.2

0.1

015 20

102 103 104

SUS 304SUS 304

SUS 316

SUS 316

DP-8

DP-8F

DP-3

DP-3

DP-3

20mV/min

Pitting corrosion potentials for different types ofstainless steel

ArtificialSea Water80℃

25

Pitting Corrosion Potential

(vs. SCE)

Pitting Corrosion Potential

(vs. SCE)

Cr + 3Mo + 10N (%)

Relationship between pitting corrosion potential and temperature,obtained from immersion test in 0.5 M NaCl solution

Temperature (℃)

Stress-rupture time diagram, obtained fromimmersion test in boiling 42% MgCl2 solution

Weld rod for duplex stainless steels

SCC test results (For double-U-bent test samples kept in saturated air for 500 hours)

30 35

0.9

0.7

0.5

0.1

0.2

0.3

－0.10 10 20 30 40 50 60 70 80 90

0.8

0.6

0.4

0

Rupture Time (h)

Applied Stresses (N/mm2 )

Temperatures (℃)

Cl－ (ppm)

500

400

300

200

100

0

200

150

100

102 103 104

DP-8200

150

100

102 103 104

SUS316L

Free from CrackAny Cracks Observed

200

150

100

SUS 316

NAR-DP-3

Nippon Steel & SumikinWelding Co., Ltd.

Nippon Welding Rod Co., Ltd.

DP3

WEL 25-5

FC-DP3SF-DP3

─

YT-DP3

WEL TIG 25-5

YM-DP3

WEL MIG 25-5

Filler wire

Steel Rod

NSSMC-NAR-DP-3

NSSMC-NAR-F

SpoolCoatedelectrode

Flaskwire Manufacture

Weld material

SUS 316

DP-3

NSSMC Standard（NSSMC-NAR-DP-3, DP-8, DP-12 NSSMC-NAR-F）

19 20

Excellent corrosion resistant, Super duplex stainless steel suited for use in chloride solutions and/or hot-sea water.NSSMC-NAR-DP-3N ASTM(ASME) UNS S31260NSSMC-NAR-DP-3W ASTM(ASME) UNS S39274, ASME Code Case 2427 (Plate & Sheet)

plate, sheet, strip

1. Sea water-proof parts, Sea water pump, Sea water heat exchanger

2. Chemical processing tank, food processing tank containing with chloride

3. Paper making and pulp production system

4. Anti-stress corrosion cracking parts5. Umbilical piping, Flow line

Width（mm）

Thickness（mm）

1,000 2,000 3,000

9600.4DP-3W

1,524

1,000

1,219

60.0

30.0

20.0

3.0

Duplex stainless steel with excellent corrosion resistance to urea-carbamete.ASTM(ASME) UNS S32808ASME Code Case 2496-1(ASME SECTION Ⅷ Div.1 & 2)

plate, sheet

urea plants, chamical plant

1,000 2,000 3,000

1,524

1,00060.0

Width（mm）

Thickness（mm）

1,219

20.0

30.0

3.0

Cr (%)

Corrosion rate in caustic soda（170℃　48％-NaOH,76hr）

Corrosion rate in urea-carbamate solution

DP-28W DP-12 316L-UG

1.5

1.0

0.5

0

SUS316L

DP-28W

25Cr-7Ni-4Mo-0.3N

SUS329J4L

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

015 20 25 30

Corrosion rate (mg/cm2・hr)

Relative Corrosion rate

1. Excellent resistance to general corrosion in urea-carbamate solutions.2. Excellent resistance to nitric acid.3. Very high mechanical strength.4. High corrosion resistance to alkali solutions.

1. Excellent resistance to corrosion under chloride containing environment.2. Excellent corrosion resistance to high temperature sea water.3. High mechanical strength, especially yield strength, as well as excellent resistance to SCC.4. Corrosion resistance does not deteriorate after welding. Has good weldability very similar to SUS316 in covered electrode welding.


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C Cr Ni Mo Cu W N

NSSMC-NAR-DP-3N 0.02 25.7 6.9 3.3 0.5 0.4 0.2

NSSMC-NAR-DP-3W 0.02 25.1 6.7 3.2 0.5 2.0 0.3

0.2%Yield strength（N/mm2）Tensile strength（N/mm2） Elongation（％） Hardness（HRB）NSSMC-NAR-DP-3N ≧ 450［646］ ≧ 620［857］ ≧ 18［35］ ≦ 302［266］NSSMC-NAR-DP-3W ≧ 550［669］ ≧ 800［894］ ≧ 15［36］ ≦ 310［270］


MECHANICALPROPERTY

[typical example]

C Cr Ni Mo W N

0.02 27.4 7.6 0.9 2.2 0.3

0.2%Yield strength（MPa） Tensile strength（MPa） Elongation（％） Hardness（HB）NSSMC-NAR-DP-28W ［650］［875］［44］［274］NSSMC-NAR-DP-12 ［627］［764］［28］［241］

316L ［260］［542］［58］

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

1.0

0.8

0.6

0.4

0.2

060

1.0

0.8

0.6

0.4

0.2

0

20 30 40 50 70 80Temperature (℃)

DP-3W

DP-3N

DP-3



Effect of temperature on pitting corrosion potential(Sythetic sea water, Deaerated 20mV/min.)

Cr＋3(Mo＋0.5W)＋10N (%)Pitting corrosion potential of various stainless steel and high Cr-Ni alloys

(Sythetic sea water: ASTM-D1141, Deaerated, 80℃, 20mV/min.)

90 100

62529-4

254SMOAC-3AC-420-25-6

25-4-4

20-25-4.5Cu25520-25-5

447J1825

316L

444304

DP-8(329J3L)XM27

329J1DP-1(18-5-3)

DP-3N

DP-3(329J4L)

DP-3W

: Austenite


: Ferrite

1.0

0.8

0.6

0.4

0.2

060

1.0

0.8

0.6

0.4

0.2

0

20 30 40 50 70 80Temperature (℃)

DP3W

DP3N

DP3

Pitting Corrosion Potential (V vs SCE)

Pitting Corrosion Potential (V vs SCE)

Effect of temperature on pitting corrosion potential(Sythetic sea water, Deaerated 20mV/min.)

Cr＋3(Mo＋0.5W)＋10N (%)Pitting corrosion potential of various stainless steel and high Cr-Ni alloys

(Sythetic sea water: ASTM-D1141, Deaerated, 80℃, 20mV/min.)

90 100

62529-4

254SHO AC-3AC-420-25-6

25-4-4

20-25-4.5Cu25520-25-5

447J1825

316L

444304

DP8(329J3L)XM27

329J1DP1(18-5-3)

DP3N

DP3(329J4L)

DP3W

: Austenite


: Ferrite

■ Welding: Nippon steels & Sumikin Consumable welding Co., Ltd.

SMAWDP3W

GTAWYT-DP3W

GMAWYM-DP3W

FCAWSF-DP3W

Range of consultation Range of consultation

NSSMC Standard（NSSMC-NAR-DP-3N, DP-3W）

NSSMC Standard（NSSMC-NAR-DP-28W）

21 22

plate, sheet

Heat exchange, thermal treatment oven and constituting parts, combustion equipment, and aircraft parts

1,000 2,000 3,000

1,5243.0

30.0

Width（mm）

Thickness（mm）

1. Excellent resistance to oxidation by high temperature up to 1,200℃ .2. Highly resistance to carburization , nitridation and sulphurization.3. Highly resistance to scaling and repeated exposure to oxidizing conditions.

Nickel base alloy with excellent corrosion resistance to high temperature alkali or water oxidization.ASTM(ASME) UNS N06600

Nickel-based alloy with excellent resistance to high temperature oxidization and scaling.JIS NCF601, AMS 5715A, 5870A, ASTM(ASME) UNS N06601

plate, sheet, strip

Muffles for heating furnace, electronic machinery parts, heat exchanger parts, chemical and food processing facilities, carburizing baskets, jigs, nuclear reactor parts, caustic soda manufacturing equipment, heating element

3.0

1,000 2,000 3,000

1,524

1,000

320640

1,219

0.040.08

0.30.4

30.0

Width（mm）

Thickness（mm）

1. NSSMC-NAR-600 is an alloy for use in highly corrosive environments at high temperatures.2. Resists oxidation under temperatures of up to 1,180℃ .3. Great strength and cold workability. The strength increases with cold working.4. Good mechanical properties under low temperature as well as under high temperature.5. Excellent resistance to stress corrosion cracking by chloride ion and to corrosion by high temperature water.6. Highly resistance to high temperature alkalis.



MECHANICALPROPERTY

[typical example]

MECHANICALPROPERTY

[typical example]

PRODUCT TYPES PRODUCT TYPES

APPLICATION APPLICATION

FEATURES FEATURES

AVAILABLE SIZE AVAILABLE SIZE

C max P max S max Cr Ni Fe

0.15 0.030 0.015 15 Bal. 8

C max Si Mn Cr Ni Cu Al

0.10 0.3 0.5 22.5 60 0.2 12


≧ 245［364］ ≧ 550［666］ ≧ 30［35］ ≦ 89［88］

0.2%Yield strength（N/mm2） Tensile strength（N/mm2） Elongation（％）

≧ 195［245］ ≧ 550［578］ ≦ 30［57］

Usable temperature of NSSMC-NAR-600 in variousenvironment

10

1.0

0.1

0.01

20 40 60 80NaOH (%)

Corrosion rate (g/m2 ・h)

SUS304

SUS316

20-25MTi

25-50MTi

600

Corrosion rate in boiling NaOH solution

Max 1,150℃Max 810℃Max 1,150℃Max 810℃Max 510℃Max 480℃Max 980℃840～ 950℃480～ 560℃840～ 950℃Max 816℃Max 700℃480～ 560℃

Corrosive environment

● Air

Air (sulfurizing)

● CO2 gas

CO2 gas (sulfurizing)

● Chlorine gas

● Hydrogen chloride

● Steam

Carburizing environment

Nitriding environment

Fused salt Neutral salt

NaOH

Liquid metal Na, K (static)

Hg (static)

Usable temperatureConditions

0 50 100 150 200 250 300 350 400 450 500

＋250

－25－50－75－100－125－150－175－200－225－250－275－300－325－350

Temperature (℃)Exposure time (h)Exposure time (h)

Results of oxidation tests at 1205℃.Test cycles consisted of 50hr atexposure temperature followed byair-cooling to room temperature.

Results of oxidation tests at 1150℃.Test cycles consisted of 50hr atexposure temperature followed byair-cooling to room temperature.

High temperature characteristic of NSSMC-NAR-601(Results of high temperature tensile strength test)

Oxidation resistance characteristic of NSSMC-NAR-601

0.2%Y.S (N/mm2 )

Weight change (mg/cm

2 )

T.S (N/mm2 )

0 50 100 150 200 250 300 350 400 450 500

＋100

－10－20－30－40－50－60－70－80－90－100－110－120－130－140

Weight change (mg/cm

2 )

601

800

600

601

800

600

700

600

500

400

300

200

100

0

400

300

200

100

0500RT 600 700 800 900 1000 1100

Tensile strength

0.2% yield strength



23 24

1. Superior to Alloy 800 in corrosion resistance at higher temperatures, also including corrosion resistance with the presence of salt.2. Higher formability and weldability than alloy 800.3. High-temperature strength equal to Alloy 800.4. A fairly high austenitic structure stability is assured by long-time heating process.5. Superior to Alloy 800 in pitting corrosion resistance due to 2% molybdenum content.

1,000 2,000 3,000

1,0001,219

0.31.5

1,5243.0

30.0

Width（mm）

Thickness（mm）

Heat resistant alloy with remarkable strength under high temperature and resistant to carburization, nitriding and oxidation. ASTM(ASME) UNS N08800・N08810

Austenitic stainless steel, specifically developed for uses in corrosive environments at higher temperature.

plate, sheet plate, sheet, strip

Heat exchangers, chemical equipment, heating furnace parts, reaction pipes and parts

Heating Elements (Seethe Heater), Heat Exchangers, Chemical Equipment, Furnace Components, Reaction Pipes and Component Elements

1,000 2,000 3,000

1,0001,219

0.31.5

1,5243.0

30.0

Width（mm）

Thickness（mm）

1. NSSMC-NAR-800 and 800H are iron-nickel-chromium alloys of excellent strength under high temperature, with remarkable resistance to carburization, nitriding and oxidation.

2. Resistance to stress corrosion cracking, S attacks, internal oxidation, high temperature scaling and other types of corrosion in many corrosive environment.

3. Highly ductile due to the stable austenitic structure. Occurrence of harmful σ phase is minimal under the long-term use in the 650～ 870℃ temperature range.

4. Compared with NSSMC-NAR-800, NSSMC-NAR-800H has greater strength under temperature of over 620℃ , and superior rapture strength in the 590～ 980℃ temperature range.



MECHANICALPROPERTY

[typical example]

MECHANICALPROPERTY

[typical example]

PRODUCT TYPES PRODUCT TYPES

APPLICATION APPLICATION

FEATURES FEATURES

AVAILABLE SIZE AVAILABLE SIZE

C max P max S max Cr Ni Al Ti

NSSMC-NAR-800 0.10 0.030 0.015 21 32 0.3 0.5

NSSMC-NAR-800H 0.05～ 0.10 0.030 0.015 21 32 0.3 0.5

C max Si Mn P max S max Cr Ni Mo

0.03 1.0 0.3 0.03 0.015 21.0 19.8 2.0

0.2%Yield strength（N/mm2） Tensile strength（N/mm2） Elongation（％） Hardness（HRB）NSSMC-NAR-800 ≧ 205［315］ ≧ 520［565］ ≧ 30［44］ ≦ 89［82］

NSSMC-NAR-800H ≧ 175［256］ ≧ 450［547］ ≧ 30［49］ ≦ 86［76］

0.2%Yield strength（N/mm2） Tensile strength（N/mm2） Elongation（％） Hardness（HV）

≧ 205［279］ ≧ 520［583］ ≧ 30［48］ ≦ 182［139］

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

00

8

5 6 7 8

9 10 11 12 13 14 15

15

10

5

2

4

6

8

10

12

10 20 30 40 50Ni (%)

Temperature × 100°F

Chart of allowable tensile stress

(From ASME SECTION VIII)

× 100℃

Ni %

Type 446

800

800

800H

25Cr-20NiInconel60060Ni

15Cr

Type 310

(Test location) : outlet of an ammonia pre-heater(Test temperature) : 500℃ (Duration of test) : 1,540 hours(Composition of gas) : 99.1% ammonia gas +0.9% inert gas

Results of plant test on nitriding of stainless steels andNickel-base alloys

Type 309

Corrosion rate (mm/y)

(kgf/mm2 )

Allowable tensile stress

× 1000PSi

60 70 80 90 100

Polished surfaceOxidized surface

Test conditions:One cycle (Test sample immersed in soy sause for 3 min. then heated in air at 750℃ for 15 min.)Repeated × 45 Times.*Corr osion Depth ( t) = Original Test SampleThickness (t0) － Corr osion-fr ee Thickness (t1)

Mechanical properties at higher temperatures

800℃

Steel TypesElongation

(%)

Tensile Strength

0.2% YieldStrength

58.019083AH-1

63.4193105Alloy 800

67.8184106Alloy 600

Corrosion test results obtained fromrepeated immersion in soy sauce followedby heating to high temperature

Corr osionDepth*(mm)

Variations inWeight

(mg/cm 2 )

SteelTypes

0.72－ 179.5AH-1

1.28－ 306.3Alloy 800

0.15－ 43.9Alloy 600

0.86－ 212.3SUS 316

1.90－ 577.2SUS 304

t0 = 2.0mmt0t1

(N/mm2) (N/mm2)

NSSMC Standard（NSSMC-NAR-800, 800H）

NSSMC Standard（NSSMC-NAR-AH-1）

25 26

Heat -resistant austenitic stainless steel with excellent mechanical properties at high temperature. ASTM, UNS S31060, ASME Code Case 2430

plate, sheet, strip

1. Parts requiring heat resistance in Industrial Furnace, Heat-treating Furnace, Power Plant and Chemical Plants

2. Fuel cell reforming Tube3. Car (Exhaust Manifold etc.)4. Subsutitute for SUS310S. Especially

suited for material requiring high-temperature mechanical strength

1. Further improvement of mechanical strength and creep strength at high temperature as conpared with SUS310S (JIS G4304).2. Excellent oxidation registance at 900～ 1000℃ superior to SUS310S.3. Superior structure stability, lessdecline of toughness than SUS310S, after long-time exposure to high temperature (700～ 900℃ ).4. Reasonably designed chemical composition, cost performances are higher than SUS310S.

1,000 2,000 3,000

1,524

1,2190.3

6000.1

3.0

6.0

40.032.0

1,000

Width（mm）

Thickness（mm）

Heat-resistant austentic stainless steel with exellent mechanical properties and oxidation resistance of high temperature and high humidity.

plate, sheet, strip

Heat ExchangersSteam reformerFurnace Compornent

1. Excellent mechanical properties equivalent to NSSMC-NAR-AH-4 at high temperature.2. Excellent oxidation resistance at high humidity atomosphere.

Scale formation after high-temperature oxidation

AH-7

SUS 310S

Oxidation resistance at high humidity gas

Test Temperature（℃）

※After heated at 900℃ x 500hr in 3%O2-9%CO2-16%H2O-bal.N2 conbustion exhaustgas.

after 500hr15

10

5

0700 800 900 1000

SUS310S

SUSXM15J1

AH-7weight gain (mg/cm2・hr)

1,000 2,000 3,000

1,0000.1

1,5243.0

30.0

Width（mm）

Thickness（mm）


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C Si Cr Ni N La+Ce Other

0.05～ 0.10 0.3 23.0 11.0 0.2 0.04 B add

0.2%Yield strength（N/mm2） Tensile strength（N/mm2） Elongation（％） Hardness（HB）

≧ 280［351］ ≧ 600［665］ ≧ 40［52］ ≦ 95［88］


MECHANICALPROPERTY

[typical example]

PRODUCT TYPES

APPLICATION

FEATURES

AVAILABLE SIZE

C Si Cr Ni N La+Ce Nb

0.04～ 0.10 0.3 26.2 17.5 0.2 0.03 0.1

0.2%Yield strength（N/mm2） Tensile strength（N/mm2） Elongation（％）

≧ 280［422］ ≧ 600［764］ ≧ 35［42］

150

AH-4Aging time: 3000h

Test piece: 2mm V-notch half sizeTest temperature: room temperature

SUS310S

100

50

00

10

10

50

5

20

30

600 700 800

Aging temperature (℃)

Impact value (J/cm2 )

weight increase by oxydation (g/m

2 )

stress (MPa)

Charpy impact propartiesafter aged at 700-900℃

AH-4 SUS310STime to rapture (h)

Continuous oxidation test resultCreep rupture properties

900 1000900 900102 103 104 105 1000 1000 (℃)

900℃ 1000℃AH-4

Designation

SUS310S

Range of consultation



Special Metal & Alloys

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Transcript of Special Metal & Alloys