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Transcript of BAOSHAN IRON & STEEL CO., LTD.  · baoshan iron & steel co., ltd. baosteel singapore pte ltd. howa...

Page 1: BAOSHAN IRON & STEEL CO., LTD.  · baoshan iron & steel co., ltd. baosteel singapore pte ltd. howa trading co., ltd. baosteel europe gmbh baosteel india company private ltd. bao australia

HSS1510B

2015.10 Printed in Shanghai China

2015

Using the recyclable paper

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DP(Dual Phase Steels)

TRIP(Transformation Induced Plasticity Steels)

CP(Complex Phase Steels)

MS(Martensitic Steels)

Q&P(Quenching and Partitioning Steels)

TWIP(Twinning Induced Plasticity Steels)

PH/B(Press Hardening/Boron Steels)

1.

2.

3.

4.

5.

6.

7.

Overview of Baosteel Automotive AHSS

BaoSteel has been working on R&D of high-end products. In recent years, to meet the demand of light-weighting of auto-body and environment protection, BaoSteel invested a lot in developing high strength steel, especially advanced high strength steels (AHSS) strengthened by phase transformation as shown in Fig.1. The product line of AHSS is listed below.

Fig.1 Automotive AHSS Family

70

60

50

40

30

20

10

0200 400 600 800 1000

TS(MPa)

TS×EL=20,000 30,000 50,000

EL(

%)

1200 1400 1600 1800 2000

IF

MildISHSSIF

BHCMn

HSLADP, CP

TRIPQ&P

TWIP

MART PH

1st Gen AHSS

3rd Gen AHSS

2nd Gen AHSS

Commercialized AHSS products are listed in Table 1. The highest strength of cold rolled (CR) products is 1700MPa, for hot-dip galvanized (HDG) ones is 1180MPa, and for electrolytic galvanized (EG) ones is 980MPa.

Table1 The AHSS products in BaoSteel

Fig.2 Main applications of AHSS for auto body

AHSS is well suited for automotive structural and safety parts (Fig. 2), contributing to both the weight reduction of car body and the promotion of passive safety and increasing the cost benefit of automotive.

Note: In the table, even there are differences between BaoSteel products and some similar steels nominated by other standards or companies, they belong to the same grade, and the difference of tensile strength values should be less than 20 MPa. So, please refer to BaoSteel product category in the steel selection, for example, DP590 and DP600 are the same grade so refer DP590 for the product ability. TRIP 780 and TRIP 800 are the same too.

●:Commercialized ○:Under development, consultation needed before placing orders - :Not available

DP450DP500

DP590(Low Yield)DP590(High Yield)

DP780DP980(Low Yield)DP980(High Yield)

DP1180TRIP590TRIP690TRIP780MS980MS1180MS1300MS1400MS1500MS1700QP980QP1180CP600CP750CP780CP980CP1180PH1200PH1500PH1800TWIP950

DP

TRIP

Mart

Q&P

CP

PH

TWIP

Variety Grade CR EG GI GA

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BaoSteel Automotive Advanced High Strength Steels 2

DP (Dual Phase) Steels

Microstructure:The microstructure of these steels is composed of ferrite and martensite. Martensite islands distribute dispersively in the ferrite matrix. Due to the soft ferrite matrix, DP steel exhibits good formability, while the hard martensite islands contribute to its high strength. Products with different yield ratio can be produced for different applications.

Properties: No Yield point; No room-temperature aging; Low Yield/Tensile Strength Ratio; High strain hardening exponent and high bake hardening value.

Applications: DP high strength steels are preferred to manufacture structural parts. It is widely applied to structural components, reinforcement and anti-collision components, such as underbody cross member, track, bumper, bumper reinforcement structure etc.

Technical characteristics

Application casesFig.4 Kick-down reinforcement, HC550/980DPD+Z (Coating thickness: 50/50g/m2, 1.4mm×1150mm)

Fig.5 Door beam, HC550/980DPD+Z (Coating thickness: 50/50g/m2, 1.2mm×1120 mm)

Fig.6 Car seat bracket parts, HC550/980DPD+Z (Coating thickness: 50/50g/m2, 1.25mm×1120 mm)

Mechanical propertiesThe products listed in the tables below can be supplied in accordance with EN, ASTM, JIS, and BaoSteel standards. Ordering according to customer’s standard or requirement is also available.

Table 2 CR DP Steels

Steel GradeYSa, b

RP0.2

, MPa

TSR

m, MPa

ELc

A80mm

, %≥

n(4%~6%)

HC250/450DPHC290/490DPHC280/590DPHC340/590DPHC420/780DPHC500/780DPHC550/980DPHC700/980DPHC820/1180DP

250~320290~390280~380340~440420~550500~650550~730

≥700820~1130

4504905905907807809809801180

272422211410773

0.160.150.140.14-

Table 3 HDG DP Steels

Steel GradeYSa, b

RP0.2

, MPa

TSR

m, MPa

ELc

A80mm

, %≥

nd

HC250/450DPD+ZHC250/450DPD+ZFHC300/500DPD+Z

HC300/500DPD+ZFHC280/590DPD+Z

HC280/590DPD+ZFHC340/590DPD+Z

HC340/590DPD+ZFHC420/780DPD+Z

HC420/780DPD+ZFHC500/780DPD+Z

HC500/780DPD+ZFHC550/980DPD+Z

HC550/980DPD+ZFHC550/980DP-ELD+Z

HC550/980DP-ELD+ZFHC650/980DPD+Z

HC650/980DPD+ZFHC820/1180DPD+Z

HC820/1180DPD+ZF

250~340

290~370

280~450

340~500

420~550

500~650

550~760

650~900

820~1150

450

500

590

590

780

780

980

980

1180

27252422191717151412108751087542

0.16

0.15

0.14

0.13

a If the yield point is not pronounced, the values of Rp0.2 apply. Otherwise, the values of ReL apply.

b Guaranteed for P6 tensile specimens according to standard GB/T 228 with the tensile axis parallel to the rolling direction.

c Whenthespecifiednominal thickness is in therangeof0.5~0.7mm, the minimum value of EL should be reduced by 2%. For thickness less than 0.5 mm, the minimum value of EL should be reduced by 4%.

d n-valueshouldbedeterminedbythestrainrangeof10~20%.Ifmaximum uniform elongation is less than 20%, n-value should be determined by the strain range from 10% to uniform elongation. If maximum uniform elongation is less than 10%, n-value should be determined by the strain range from 5% to maximum uniform elongation.

* Pleaseconfirmthespecificationsofproductbeforeofficialorder.Thespecificationsarenegotiable.

Fig.3 Typical DP steel microstructure photos

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2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1350

Thic

knes

s (m

m)

Width (mm)

850, 2.1

950, 2.3

800, 2

750, 0.8

750, 0.6 1400, 0.6

1550, 0.8

1550, 1.4

1500, 1.8

1480, 2

1440, 2.11230, 2.1

1230, 2.3

850 16001100

590MPa and below

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1350

850, 2.1

950, 2.3 1200, 2.3

1250, 2.1

1400, 1.8

1480, 1.5

1480, 1.4

1400, 0.9

1250, 0.7

750, 1.1

800, 1.5

750, 0.7

850 16001100

780MPa

Thic

knes

s (m

m)

Width (mm)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1200

850, 2.1 1250, 2.1

1250, 0.8

750, 1.1

800, 1.5

800, 1.1

850, 1.5

750, 0.8

800 14001000

980MPa and 1180MPa

Thic

knes

s (m

m)

Width (mm)

Product dimensionsCR DP Steels

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4650 1400

850, 2.1

840, 2.0

1000, 2.3 1200, 2.31250, 2.1

1400, 2.0

1600, 1.4

1600, 1.0

1400, 0.81200, 0.6

800, 1.4

840, 1.4

800, 0.6

900 16501150

590MPa and below

Thic

knes

s (m

m)

Width (mm)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1350

850, 2.1

1000, 2.3 1200, 2.3

1250, 2.1

1400, 1.8

1400, 0.81250, 0.7

800, 1.5

800, 0.7

850 16001100

780MPa

Thic

knes

s (m

m)

Width (mm)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1200

850, 2.1 1250, 2.1

1250, 0.8

800, 1.5

800, 0.8

850, 1.5

800 14001000

980MPa and 1180MPa

Thic

knes

s (m

m)

Width (mm)

HDG DP Steels (GI)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4650 1400

1500, 1.2

1440, 2.0

1500, 0.91410, 0.9

1440, 1.2

1410, 0.6

840, 2.0

800, 0.6

800, 1.0840, 1.0

900 16501150

590MPa and below

Thic

knes

s (m

m)

Width (mm)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4650 1400

1000, 2.0 1250, 2.0

900, 1.6

900, 0.65 1110, 0.651150, 0.75

1330, 0.9

1330, 1.4

900 16501150

780MPa

Thic

knes

s (m

m)

Width (mm)

HDG DP Steels (GA) EG DP Steels

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4650 1400

1550, 1.4

1500, 1.8

1480, 2.0

1550, 0.8

1400, 0.6

800, 2.0

800, 0.6

900 16501150

590MPa and below

Thic

knes

s (m

m)

Width (mm)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1350

850, 2.0 1250, 2.0

1400, 1.8

1480, 1.5

1480, 1.4

1400, 0.9

1250, 0.7

800, 1.5

800, 0.7

850 16001100

780MPa

Thic

knes

s (m

m)

Width (mm)

980MPa

Thic

knes

s (m

m)

Width (mm)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1350

800, 2.0 1300, 2.0

1130, 0.8

1030, 1.0

1400, 1.6

1400, 1.0

800, 0.8

850 16001100

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1350

Thic

knes

s (m

m)

Width (mm)

850 16001100

1180MPa

800, 2.0 1200, 2.0

1030, 0.8

1130, 1.01030, 1.0

1230, 1.8

1230, 1.21130, 1.2

1200, 1.8

800, 0.8

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BaoSteel Automotive Advanced High Strength Steels 4

Table 4 CR TRIP Steels

The products listed in the tables below can be supplied in accordance with EN, ASTM, JIS, and BaoSteel standards. Ordering according to customer’s standard or requirement is also available.

Steel GradeYSa, b

RP0.2

, MPa

TSR

m, MPa≥

ELc

A80mm

, %

n≥

HC380/590TRHC400/690TRHC420/780TR

380~480400~520420~580

590690780

292420

0.200.190.15

a If the yield point is not pronounced, the values of Rp0.2 apply. Otherwise, the values of ReL apply.b Guaranteed for P6 tensile specimens according to standard GB/T 228 with the tensile axis parallel to the rolling direction.c Whenthespecifiednominalthicknessisintherangeof0.5~0.7mm,theminimumvalueofELshouldbereducedby2%.Forthicknessless

than 0.5 mm, the minimum value of EL should be reduced by 4%.* Pleaseconfirmthespecificationsofproductbeforeofficialorder.Thespecificationsarenegotiable.

Table 5 HDG TRIP Steels

HC380/590TRD+ZHC400/690TRD+ZHC420/780TRD+Z

380~480400~510420~560

590690780

262422

0.200.190.18

Steel GradeYSa, b

RP0.2

, MPa

TSR

m, MPa≥

ELc

A80mm

, %

n≥

CR TRIP Steels EG TRIP SteelsHDG TRIP Steels (GI)

Fig.8 B-pillar reinforcement, HC420/780 TR (1.8mm×615mm)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1350

950, 2.3

850, 2.1

750, 1.1

1200, 2.3

1400, 2.1

1445, 1.8

1400, 0.7

800, 1.5

750, 0.7

850 16001100

780MPa and below

Thic

knes

s (m

m)

Width (mm)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1350

850, 2.1

850, 1.5

1250, 2.1

1250, 0.6

800, 1.5

800, 0.6

850 16001100

780MPa and below

Thic

knes

s (m

m)

Width (mm)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4650 1400

1445, 1.8

1440, 2850, 2

800, 0.7

800, 1.5

900 16501150

780MPa and below

Thic

knes

s (m

m)

Width (mm)

Product dimensions

TRIP (Transformation Induced Plasticity) Steels

Microstructure: The microstructure of these steels is composed of ferrite, bainite and retained austenite with a volumefractionof7~15%.(Fig.7)

Properties: These steels have good formability due to the transformation of retained austenite into martensite during plastic deformation (transformation induced plasticity effect). TRIP steels exhibit good combination of high strength and high ductility. Moreover, TRIP steels show high energy absorption and high strain hardening capacity.

Application: Structural and reinforcement parts of complex shape, such as B-pillar reinforcement panels.

Technical characteristics

Fig.7 Typical microstructure of TRIP steel

Mechanical properties

Application cases

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5

MS (Martensitic) Steels

CR MS Steels

Fig.9 Typical microstructure of MS steel

In addition, further agreement for trial production can be achieved when the requirements exceed the dimensions (TS>1500MPa, thickness<2.3mm).

Fig.10 Rocker, HC950/1180MS (1.4mm×919mm)

Table 6 CR MS Steels

Steel gradeYSa, b

RP0.2, MPaTS

Rm, MPa≥

ELA80mm, %

HC700/980MS

HC950/1180MS

HC1030/1300MS

HC1150/1400MS

HC1200/1500MS

HC1350/1700MS

700~960

950~1200

1030~1300

1150~1400

1200~1500

1350~1700

980

1180

1300

1400

1500

1700

3

3

3

2

2

2

Recommendedinner

bendingradius

4 timesof thickness

4 timesof thickness

4 timesof thickness

4 timesof thickness

4 timesof thickness

4 timesof thickness

a If the yield point is not pronounced, the values of Rp0.2 apply. Otherwise, the values of ReL apply.

b Guaranteed for P6 tensile specimens according to standard GB/T 228 with the tensile axis parallel to the rolling direction.

* Pleaseconfirmthespecificationsofproductbeforeofficialorder.Thespecificationsarenegotiable.

The products listed in the tables below can be supplied in accordance with EN, ASTM, JIS, and BaoSteel standards. Ordering according to customer’s standard or requirement is also available.

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1200

870, 2.1 1250, 2.1

1250, 1.0

820, 1.6

750, 1.0

750, 1.1820, 1.1

870, 1.6

800 14001000

1500MPa and below

Thic

knes

s (m

m)

Width (mm)

1700MPa

Thic

knes

s (m

m)

Width (mm)

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4600 1200

1250, 1.4820, 1.4

800 14001000

1250, 1.0750, 1.0

750, 1.1 820, 1.1

Technical characteristics

Application cases

Mechanical properties Product dimensions

Microstructure: Almost full martensite. (Fig.9) Properties: High Yield/Tensile Strength Ratio; High tensile strength; Relatively low elongation; Delayed fracture should be considered.

Applications: MS steels are suited for simple cold stamped parts and roll formed parts with a relatively single interface, such as bumper, threshold reinforcing plate and the side door anti-collision rod.

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BaoSteel Automotive Advanced High Strength Steels 6

CP (Complex Phase) Steels

Microstructure: Ferrite/bainite matrix with small amounts of martensite, retained austenite and pearlite. (Fig.11)

Properties: An extreme grain refinement is created by retarded recrystallization or precipitation of micro-alloying elements like Ti or Cr. In comparison with DP steels, CP steels show significantly higher yield strength, bendability and hole expansion ratio at the same strength level. CP steels are characterized with high energy absorption and goodstretchflangingformability.

Applications: Suspension parts, B-pillar, bumpers, seat slide.

Fig.11 Typical microstructure of cold rolled CP steels

Steel GradeYSa, b

RP0.2

, MPa

TSR

m, MPa≥

ELA

80mm, %

HC350/600CPHC500/780CPHD680/780CP

(CR, HR)

HC700/980CPHC780/980CP

350~500500~700

680~830

700~900780~950

600

780

780

980

16

10

10

7

980 6

Table 7 CR CP Steels Table 8 HDG CP Steels

a If the yield point is not pronounced, the values of Rp0.2 apply. Otherwise, the values of ReL apply.b Guaranteed for P6 tensile specimens according to standard GB/T 228 with the tensile axis parallel to the rolling direction.* Pleaseconfirmthespecificationsofproductbeforeofficialorder.Thespecificationsarenegotiable.

The products listed in the tables below can be supplied in accordance with EN, ASTM, JIS, and BaoSteel standards. Ordering according to customer’s standard or requirement is also available.

Steel GradeYSa, b

RP0.2

, MPa

TSR

m, MPa≥

ELA

80mm, %

HC350/600CPD+ZHC500/780CPD+ZHC700/980CPD+ZHC780/980CPD+ZHD620/750CPD+ZHD680/780CPD+ZHD720/950CPD+Z

350~500500~700700~900780~950620~750680~830720~920

600

780

980

980

750

780

950

16

10

7

6

10

10

9

CR and HDG (GI) CP Steels HR and HR Pickled CP Steels HR HDG CP Steels (GI)

Fig.12 Control arm, HD680/780CP (3.2mm×1050mm)

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6600 1200

800, 2.0 1250, 2.0

1250, 1.0800, 1.0

800 14001000

980MPa and below

Thic

knes

s (m

m)

Width (mm)

6.5

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0800 1200

900, 6.0 1300, 6.0

1300, 2.0900, 2.0

1000 1400

780MPa

Thic

knes

s (m

m)

Width (mm)

2.5

2.3

2.1

1.9

1.7

1.5600 1200

900, 2.25 1250, 2.25

1250, 1.8900, 1.8

800 14001000

780MPa and below

Thic

knes

s (m

m)

Width (mm)

Technical characteristics

Application cases

Mechanical properties

Product dimensions

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7

Q&P (Quenching and Partitioning) Steels

Microstructure: The microstructure is composed of ferrite, bainite and retained austenite with a volume fraction of 5~10%.(Fig.13)

Properties: Benefiting from the TRIP effect of retained austenite, Q&P steels exhibit quite high strain hardening capacity, and higher ductility and formability than other UHSS with same strength level.

Applications: Q&P steels are suited for the automotive structural and safety parts with complex shapes.

Fig.13 Typical microstructure of Q&P steel

Fig.14 B-pillar reinforcement, HC600/980QP (2.0mm×1100mm)

Fig.15 A-pillar inner, HC600/980QPD+Z (1.0mm×950mm)

Fig.16 B-pillar inner, HC600/980QP (1.2mm×1200mm)

HC600/980QPwasa“worldfirst”productofBaoSteel,and now has already commercially supplied to the manufacturing of B-pillar reinforcement used in a domestic self-own brand car. Moreover, Q&P steels are suited for manufacturing structural and safety parts with complex shapes, such as A-pillar inner and hinge-pillar reinforcement .

Steel GradeYSa, b

RP0.2

, MPa

TSR

m, MPa≥

ELA

50mm, %

HC600/980QPHC820/1180QP

600~850820~1100

9801180

158

HC600/980QP-ELHC820/1180QP-EL

550~800820~1100

9801180

2014

Steel GradeYSa, b

RP0.2

, MPa

TSR

m, MPa≥

ELA

50mm, %

HC600/980QPD+ZHC820/1180QPD+Z

600~850820~1100

9801180

158

HC600/980QP-ELD+ZHC820/1180QP-ELD+Z

550~800820~1100

9801180

2014

Table 10 HDG Q&P Steels

Table 9 CR Q&P Steels

a If the yield point is not pronounced, the values of Rp0.2 apply. Otherwise, the values of ReL apply.

b Guaranteed for No.5 tensile specimens according to standard JIS Z2241 with the tensile axis vertical to the rolling direction.

* Pleaseconfirmthespecificationsofproductbeforeofficialorder.Thespecificationsarenegotiable.

a If the yield point is not pronounced, the values of Rp0.2 apply. Otherwise, the values of ReL apply.

b Guaranteed for No.5 tensile specimens according to standard JIS Z2241 with the tensile axis vertical to the rolling direction.

* Pleaseconfirmthespecificationsofproductbeforeofficialorder.Thespecificationsarenegotiable.

CR and HDG (GI) Q&P Steels

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6600 1200

800, 2.0 1250, 2.0

1250, 1.0800, 1.0

800 14001000

1180MPa and below

Thic

knes

s (m

m)

Width (mm)

Technical characteristics

Application cases

The products listed in the tables below can be supplied in accordance with EN, ASTM, JIS, and BaoSteel standards. Ordering according to customer’s standard or requirement is also available.

Mechanical properties

Product dimensions

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BaoSteel Automotive Advanced High Strength Steels 8

TWIP (Twinning Induced Plasticity) Steels

Microstructure: Full austenite (Fig.17) Properties: TWIP steels are full austenitic steels with high C, Mn and Al. TWIP steels have very high strain hardening capacity due to dynamic refinement effect caused by the continuous activation of twining during cold deformation. TWIP steels developed by BaoSteel exhibit an elongation of over 50% with the tensile strength of 1000MPa.

Applications: TWIP steels have very good formability and ultra-high strength, which are suited for manufacturing structural and safety parts with very complex shapes.

Fig.17 Typical microstructure of TWIP steel

Steel Graden≥

HC450/950TW 450~600 950 47 0.35

YSa, b

RP0.2

, MPa

TSR

m, MPa≥

ELA

50mm, %

a If the yield point is not pronounced, the values of Rp0.2 apply. Otherwise, the values of ReL apply.b Guaranteed for P17 tensile specimens according to standard GB/T 228 with the tensile axis parallel to the rolling direction.*Pleaseconfirmthespecificationsofproductbeforeofficialorder.Thespecificationsarenegotiable.

Table 11 CR TWIP Steels

The products listed in the tables below can be supplied in accordance with EN, ASTM, JIS, and BaoSteel standards. Ordering according to customer’s standard or requirement is also available.

CR TWIP SteelsTWIP steels exhibit the combination of ultra-high strength and ultra-high formability, which could lead to remarkable change in auto-part designation. According to their properties, TWIP steels could be suited for manufacturing structural and safety parts with ultra-high strength and very complex shape, including bumper and B-pillar.

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6600 1200

800, 2.0 1250, 2.0

1250, 1.0800, 1.0

800 14001000

950MPa

Thic

knes

s (m

m)

Width (mm)

Technical characteristics

Application cases

Mechanical properties

Product dimensions

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PH/B (Press Hardening/Boron) Steels

9

Microstructure: Ferrite-Pearlite (before quenching), Martensite (after quenching), as shown in Fig.18.

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

800 900

1350, 2.0

1400, 1.5

1400, 0.8

1300, 0.7

1250, 0.6900, 0.6

900, 2.0

1000 1100 1200 1300 1400 1500

Thic

knes

s (m

m)

Width (mm)

1500MPa/1200MPa6.5

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5800 900

HR

Pickled

800, 6.0 1850, 6.0

1100, 4.0

1400, 4.0

1400, 3.3

1300, 31200, 2.8

1150, 2.0

1100, 1.8800, 1.8

900, 4.0

900, 1.8

1000 1100 1200 1300 1400 1500 1600 1700 1800 1900

Thic

knes

s (m

m)

Width (mm)

1500MPa/1200MPa

HR and HR Pickled PH/B Steels CR PH/B Steels

Technical characteristics

Fig.19 Front bumper, BR1500HS (2.35mm×1035mm)

Fig.20 B-pillar, B1500HS (1.8mm×1025mm)

Application cases

Product dimensions

a Guaranteed for No.5 tensile specimens according to standard JIS Z2241 with the tensile axis vertical to the rolling direction.

b If the yield point is not pronounced, the values of Rp0.2 apply. Otherwise, the values of ReL apply.

c Whenthespecifiednominal thickness is in therangeof0.5~0.7mm, the minimum value of EL should be reduced by 2%. For thickness less than 0.5 mm, the minimum value of EL should be reduced by 4%.

* The properties after quenching strongly depend on quenching process.

Pleaseconfirmthespecificationsofproductbeforeofficialorder.Thespecificationsarenegotiable.

BR1200HSB1200HS

1200*HD950/1300HS

(BR1500HS)HC950/1300HS

(B1500HS)1500*

≥280≥220

900~1200

320~630

280~450

950~1250

≤700380~700≥1200

480~800

≥450

1300~1800

≥18≥22≥7

≥16

≥20

≥5

Steel GradeYSa, b

RP0.2

, MPaTS

Rm, MPa

ELc

A50mm

, %

The products listed in the tables below can be supplied in accordance with EN, ASTM, JIS, and BaoSteel standards. Ordering according to customer’s standard or requirement is also available.

Mechanical properties

Table 12 PH/B Steels

Fig.18 Typical microstructure of PH steel

After quenchingBefore quenching

Properties: Extra High strength(1500MPa), improved Crash Performance, high light-weighting potential, design of complex shape, good formability; high product dimension accuracy.

Application: Structural and safety parts, such as front and rearbumper,A-pillar,B-pillar,floorandroofreinforcements.

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BaoSteel Automotive Advanced High Strength Steels 10

Processing and Distribution for UHSS

To solve the quality problems of UHSS shearing which may lead to side cracking during the forming process, BaoSteel built the UHSS Service Center at the end of 2010 equipped with a shear line and a slitting line with the maximum tensile strength of 1500MPa.

Slitting Strength Max

Yield Strenth Max

Coil Weight Max

Entrance Width

Exit Width

OD Max

OD Min

ID

Coil Thickness

Design Capacity

1500MPa

1470MPa

30MT

300-1650mm

30-1650mm

2100mm

900mm

508 and 610mm

0.5-6.0mm

50000MT

Cutting Strength

Yield Strength Max

Coil Weight Max

Entrance Width

OD Max

OD Min

ID

Coil Thickness

Stacking Height Max

Stacking Weight Max

Design Capacity

250-1500MPa

1470MPa

30MT

300-1650mm

2100mm

900mm

508 and 610mm

0.5-4.0mm

750mm

5MT

50000MT

Shanghai HSS Distribution Co., Ltd. Add.: 3964 Yunchuan Road, Baoshan District, Shanghai 200941 Tel.: 021-56930909 Fax: 021-56931020

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HSS1510B

2015.10 Printed in Shanghai China

2015

Using the recyclable paper

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