Seamless Stainless Steel Tubes &...
16
Product catalogue Seamless Stainless Steel Tubes & Pipes
Transcript of Seamless Stainless Steel Tubes &...
Product catalogueSeamless Stainless Steel Tubes & Pipes
01 Centravis stainless steel tube solutions
03 Quality Management
05 Classification of steels
06 Application areas of steel grades
07 Steel grades correlation in different standards
08 Chemical composition
12 Hot finished tubes
13 Cold finished tubes
14 Standards: ASTM A312/A312M, ASME SA-312/SA-312M ASTM A376/A376M, ASME SA-376/SA-376M
15 Standards: ASTM A213/A213M, ASME SA-213/SA-213M, ASTM A269/A269M
17 Standards: ASTM A268/A268M, ASME SA-268/SA-268M
18 Standards: ASTM A790/A790M; ASME SA-790/SA-790M Standards: ASTM 829, ASTM B407, ASTM B729, ASTM B668, ASTM B423, ASTM B163
19 Standard: EN 10216-5
21 Additional requirements ( acc. to DIN 28180)
23 U-bent tubes
25 Hollow Bars
28 List of standards in production
Centravis Worldwide
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Centravis stainless steel tube solutions
EU – 55%CIS – 33%America – 5%ROW – 3%Asia – 4%
General tubes&pipes – 44%Heatexchanger tubes – 21%Hollow bars – 13%Boiler tubes – 10%Instrumentation tubes – 10%Furnance tubes – 2%
3
Quality Management
Our business partners can verify actual Quality Certificates online on the company officialwebsite www.centravis.com.
5
Classification of steels
6
Application areas of steel grades
7
Steel grades correlation in different standards
8
ТР 304TP 304LTP 304HTP 304NTP 304LNTP 310STP 310HTP 316TP 316LTP 316HTP 316TiTP 316NTP 316LN
TP 317TP 317LTP 321
TP 321HTP 347
TP 347HTP 347HFG
N089041.43011.43061.43071.43111.44011.44041.44351.44291.44361,45411.45711.48281.48451.4878
TU Z 6 CN 18 9TU Z 2 CN 18 10
TU Z 12 CN 25 20TU Z 6 CNT 18 10
TU Z 6 CNDT 17 12TU Z 6 CNT 18 10TU Z 2 CND 17 12TU Z 6 CND 17 11TU Z 2 CND 18 14
А269, A213, А312А269, A213, А312
A213, А312A213, А312
А269, A213, А312A213, А312A213, А312
А269, A213, А312А269, A213, А312
A213, А312A213, А312A213, А312
А269, A213, А312A213, А312A213, А312
А269, A213, А312A213, А312
А269, A213, А312A213, А312
A213А269, А312EN 10216-5EN 10216-5EN 10216-5EN 10216-5EN 10216-5EN 10216-5EN 10216-5EN 10216-5EN 10216-5EN 10216-5EN 10216-5
SEW 470SEW 470SEW 470
NF A 49-117, NF A 49-217NF A 49-117, NF A 49-217
NF A 49-117NF A 49-117NF A 49-117NF A 49-217
NF A 49-117, NF A 49-217NF A 49-117, NF A 49-217
NF A 49-217
≤0.08≤0.035
0.04-0.10≤0.08
≤0.035≤0.08
0.04-0.10≤0.08
≤0.0350.04-0.10
≤0.08≤0.08
≤0.035≤0.08
≤0.035≤0.08
0.04-0.10≤0.08
0.04-0.100.06-0.10
≤0.02≤0.07≤0.03≤0.03≤0.03≤0.07≤0.03≤0.03≤0.03≤0.05≤0.08≤0.08≤0.20≤0.15≤0.12≤0.09≤0.03≤0.16≤0.09≤0.09≤0.09≤0.03≤0.08≤0.03
≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.00≤2.04≤2.04≤2.04≤2.04≤2.04≤2.04≤2.04≤2.04≤2.04
≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.040≤0.040≤0.040≤0.040≤0.040≤0.040≤0.040≤0.040≤0.040≤0.040≤0.040≤0.040≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.045≤0.025
≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.015≤0.030≤0.015≤0.030≤0.030≤0.030≤0.030≤0.035≤0.035≤0.035≤0.035≤0.035≤0.035≤0.035≤0.035≤0.020
≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤0.75≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00
1.5-2.5≤0.75≤1.00≤1.05≤1.05≤1.05≤1.05≤1.05≤1.05≤1.05≤1.05≤1.05
TP 405TP 410TP 430
TP 430Ti1.40021.40061.40161.4510
TU Z 12 C 13TU Z 10 C 17
A268A268A268A268
DIN EN 10297-2DIN EN 10297-2DIN EN 10297-2DIN EN 10297-2
NF A 49-217NF A 49-217
A789A789
EN 10216-5NF A 49-217
A789A789
≤0.03≤0.05
≤1.20≤1.00
≤0.035≤0.030
≤0.020≤0.010
≤0.80≤1.00
≤0.03≤0.03≤0.03≤0.03
≤2.00≤2.00≤2.00≤2.04
≤0.030≤0.030≤0.035≤0.035
≤0.020≤0.020≤0.015≤0.025
≤1.00≤1.00≤1.00≤1.05
≤0.08≤0.15≤0.12≤0.10≤0.08
0.08-0.15≤0.08≤0.05≤0.16≤0.13
≤1.00≤1.00≤1.00≤1.00≤1.00≤1.50≤1.00≤1.00≤1.05≤1.05
≤0.040≤0.040≤0.040≤0.040≤0.040≤0.040≤0.040≤0.040≤0.045≤0.045
≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.030≤0.035≤0.035
≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.00≤1.05≤1.05
S31803S322051.4462
TU Z 2 CND 22 05 03
S32750S32760
Chemical composition
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18.0-20.018.0-20.018.0-20.018.0-20.018.0-20.024.0-26.024.0-26.016.0-18.016.0-18.016.0-18.016.0-18.016.0-18.016.0-18.018.0-20.018.0-20.017.0-19,017.0-19.017.0-19.017.0-19.017.0-19.019.0-23.017.0-19.518.0-20.017.5-19.517.0-19.516.5-18.516.5-18.517.0-19.016.5-18.516.5-18.517.0-19.016.5-18.519.0-21.024.0-26.017.0-19.017.0-20.217.0-20.224.0-26.217.0-20.216.0-18.217.0-20.216.0-18.216.0-18.217.0-18.7
8.0-11.08.0-12.08.0-11.08.0-11.08.0-11.0
19.0-22.019.0-22.011.0-14.010.0-14.011.0-14.010.0-14.010.0-13.010.0-13.011.0-14.011.0-15.09.0-12.09.0-12.09.0-13.09.0-13.09.0-13.0
23.0-28.08.0-10.5
10.0-12.08.0-10.08.5-11.5
10.0-13.010.0-13.012.5-15.011.0-14.010.5-13.09.0-12.0
10.5-13.511.0-13.019.0-22.09.0-12.0
8.00-11.109.00-12.15
19.00-22.159.00-12.15
10.50-13.159.00-12.15
10.50-13.1510.00-12.6513.00-16.15
-------
2.00-3.002.00-3.002.00-3.002.00-3.002.00-3.002.00-3.003.00-4.003.00-4.00
-----
4.0-5.0----
2.0-2.52.0-2.52.5-3.02.5-3.02.5-3.0
-2.0-2.5
-------
1.9-2.5-
2.0-2.52.0-2.52.2-3.1
---
0.10-0.160.10-0.16
-----
≤0.100.10-0.160.10-0.16
-------
≤0.10≤0.11≤0.11≤0.11
0.12-0.22≤0.11≤0.11
-0.12-0.22
---------------
-----------------
10*C-1.008*C-1.008*С-1.10
------------------------
----------
5*(C+N)-0.70----
5*C-0.704*C-0.60
-------------
5*C-0.705*C-0.70
--
4*C-0.80---
5*C-0.655*C-0.655*C-0.65
---
24.0-26.024.0-26.0
6.0-8.06.0-8.0
3.0-5.03.0-4.0
0.24-0.320.20-0.30
--
--
21.0-23.022.0-23.021.0-23.021.0-23.2
4.5-6.54.5-6.54.5-6.5
4.50-6.65
2.5-3.53.0-3.52.5-3.52.5-3.6
0.08-0.200.14-0.200.10-0.220.07-0.21
----
----
11.5-14.511.5-13.516.0-18.0
16.00-19.5012.0-14.011.5-13.516.0-18.016.0-18.011.5-13.716.0-18.2
≤0.50--
0.75-
≤0.75--
≤0.55≤0.55
----------
----------
----------
---
5*C-0.75
(4(C+N)+0.15) - 0,80--
--------------------
Cu 1.00-2.00-------------
1.4878---------
Cu ≤0.50W 0.50-1.00
----
Al 0.10-0.30---
Al 0.10-0.30-
Al 0.10-0.30---
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Hot finished tubes
12 13
Cold finished tubes
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Steel grades: TP 304, TP 304L, TP 304H, TP 310S, TP 310H, TP 316, TP 316L, TP 316H, TP 317, TP 317 L, TP 321, TP 321H, TP 347, TP 347H
CF tubes HF and CF tubes HF tubes
0.405
0.540
0.675
0.840
1.050
1.315
1.660
1.900
2.375
2.875
3.500
4.000
4.500
5.563
6.625
8.625
10.750
12.750
1/8
1/4
3/8
1/2
3/4
1
1¼
1½
2
2½
3
3½
4
5
6
8
10
12
10.29
13.72
17.15
21.34
26.67
33.40
42.16
48.26
60.33
73.03
88.90
101.60
114.30
141.30
168.28
219.08
273.05
323.85
0.065
0.065
0.065
0.065
0.065
0.065
0.083
0.083
1.65
1.65
1.65
1.65
1.65
1.65
2.11
2.11
0.049
0.065
0.065
0.083
0.083
0.109
0.109
0.109
0.109
0.120
0.120
0.120
0.120
1.24
1.65
1.65
2.11
2.11
2.77
2.77
2.77
2.77
3.05
3.05
3.05
3.05
0.057
0.073
0.073
0.095
0.095
0.114
0.117
0.125
0.125
0.188
0.188
0.188
0.188
1.45
1.85
1.85
2.41
2.41
2.90
2.97
3.18
3.18
4.78
4.78
4.78
4.78
0.068
0.088
0.091
0.109
0.113
0.133
0.140
0.145
0.154
0.203
0.216
0.226
0.237
0.258
0.280
0.322
0.365
0.406
1.73
2.24
2.31
2.77
2.87
3.38
3.56
3.68
3.91
5.16
5.49
5.74
6.02
6.55
7.11
8.18
9.27
10.31
0.095
0.119
0.126
0.147
0.154
0.179
0.191
0.200
0.218
0.276
0.300
0.318
0.337
0.375
0.432
0.500
0.549
0.688
2.41
3.02
3.20
3.73
3.91
4.55
4.85
5.08
5.54
7.01
7.62
8.08
8.56
9.52
10.97
12.70
15.09
17.48
0.380
0.500
0.562
0.719
0.844
11.13
12.70
14.27
18.26
21.44
0.188
0.219
0.250
0.250
0.281
0.344
0.375
0.438
0.500
0.531
0.625
0.719
0.906
4.78
5.56
6.35
6.35
7.14
8.74
9.53
11.13
12.70
13.49
15.88
18.26
23.01
0.358
0.382
0.400
0.436
0.552
0.600
0.636
0.674
0.750
0.864
0.875
9.09
9.70
10.15
11.07
14.02
15.24
16.15
17.12
19.05
21.95
22.23
• Standards: ASTM A312/A312M, ASME SA-312/SA-312M ASTM A376/A376M, ASME SA-376/SA-376M
Sch 5S
inchNPS mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm
Sch 10S Sch 30S Sch 40S Sch 80S Sch 120S Sch 160S Sch XXS
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Steel grades: (Standards: ASTM A213/A213M, ASME SA-213/SA-213M) ТР304, TP304L, ТР304Н, TP304N, TP304LN, TP309S, TP310S, ТР310Н, ТР316, TP316L, ТР316Н, ТР316Ti, TP316N, TP316LN, ТР317, TP317L, ТР321, ТР321Н, ТР347, ТР347Н
(Standard: ASTM A269/A269M) ТР304, TP304L, TP304LN, ТР316, TP316L, TP316LN, ТР317, ТР321, ТР347.
• Standards: ASTM A213/A213M, ASME SA-213/SA-213M, ASTM A269/A269M
4.006.006.357.007.948.009.009.5310.0010.2011.1112.0012.7013.0013.5014.0-14.315.015.8816.0017.2-17.518.0019.0-19.0520.0020.6-21.3422.0022.2323.8125.0025.4026.7026.928.0030.0031.7532.0033.4033.7035.0036.0038.1040.0042.0-42.444.4548.0-48.350.8054.057.0060.3-60.3363.5069.8576.1-76.288.90101.60108.00114.30
0.4 0.5 0.6 0.71 0.89-0.91
1.2(1.22-1.24)
1.4-1.5
1.6(1.63-1.65)
1.83-1.9
2.0-2.03
2.11 2.2-2.3
2.4-2.5
2.6-2.64
2.72.77-2.8
3.0-3.05
3.18-3.2
3.5-3.6
4.0 4.4-4.5
5.0 5.5 6.01.0
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/815/16
1
1¼
1½
1¾
2
2¾2½2¾33½4
4½
inch mm
16 17
Steel grades: ТР405, TP410, ТР430, ТР430Ti
19.0-19.05
20.00
20.6-21.34
22.23
23.81
25.00
25.40
31.75
33.40
38.10
40.00
42.0-42.4
44.45
48.0-48.3
50.80
54.0
57.00
60.3-60.33
63.50
69.85
73.03
76.1-76.2
88.90
• Standards: ASTM A268/A268M, ASME SA-268/SA-268M
0.89-0.91
1.0 1.2(1.22-1.24)
1.4-1.5
1.6(1.63-1.65)
1.83 2.0-2.03
2.11 2.2-2.3
2.4-2.5
2.72.77-2.8
3.0-3.06
3.5-3.68
4.4-4.5
5.08 5.16 6.0 7.144.01.0
3/4
13/16
7/8
15/16
1
1¼
1½
1¾
2
2¾
2½
2¾
3
3½
18
Steel grades: S31803, S32205, S32750, S32760
• Standards: ASTM A790/A790M; ASME SA-790/SA-790M
CF tubes HF and CF tubes HF tubes
0.675
0.840
1.050
1.315
1.660
1.900
2.375
2.875
3.500
4.000
4.500
5.563
6.625
8.625
3/8
½
¾
1
1¼
1½
2
2½
3
3½
4
5
6
8
17.15
21.34
26.67
33.40
42.16
48.26
60.33
73.03
88.90
101.60
114.30
141.30
168.28
219.08
0.065
0.065
0.065
0.065
0.065
0.065
0.083
0.083
1.65
1.65
1.65
1.65
1.65
1.65
2.11
2.11
0.065
0.083
0.083
0.109
0.109
0.109
0.109
0.120
0.120
0.120
0.120
1.65
2.11
2.11
2.77
2.77
2.77
2.77
3.05
3.05
3.05
3.05
0.091
0.109
0.113
0.133
0.140
0.145
0.154
0.203
0.216
0.226
0.237
0.258
0.280
2.31
2.77
2.87
3.38
3.56
3.68
3.91
5.16
5.49
5.74
6.02
6.55
7.11
0.126
0.147
0.154
0.179
0.191
0.200
0.218
0.276
0.300
0.318
0.337
0.375
0.432
0.500
3.20
3.73
3.91
4.55
4.85
5.08
5.54
7.01
7.62
8.08
8.56
9.52
10.97
12.70
0.380
0.500
0.562
0.719
11.13
12.70
14.27
18.26
0.344
0.375
0.438
0.500
0.531
0.625
0.719
0.906
8.74
9.53
11.13
12.70
13.49
15.88
18.26
23.01
0.436
0.552
0.600
0.636
0.674
0.750
0.864
0.875
11.07
14.02
15.24
16.15
17.12
19.05
21.95
22.23
Sch 5S
inchNPS mm inch mminch mminch mminch mminch mminch mminch mm
Sch 10S Sch 40S Sch 80S Sch 120S Sch 160S Sch XXS
Alloy grades: N08800, N08825, N08904, N08811, N08020, N08028, N06600
• Standards: ASTM В829, ASTM B407, ASTM B729, ASTM B668, ASTM B423, ASTM B163
19
Steel grades:
• Standard: EN 10216-5
20
4.0
5.0
6.0
6.35
8.0
9.0
10.0
10.2
11.0
12.0
12.7
13.0
13.5
14.0
15.0
16.0
17.2
18.0
19.0
20.0
21.3
22.0
24.0
25.0
25.4
26.9
28.0
30.0
31.8
32.0
33.7
35.0
38.0
40.0
42.0
42.4
44.5
48.3
50.0
51.0
54.0
57.0
60.3
63.5
70.0
76.1
82.5
88.9
101.6
108.0
114.3
127.0
133.0
139.7
159.0
168.3
219.3
245.0
0.5 0.6 0.9 1.0 1.2 1.5 1.6 1.8 2.0 2.1 2.3 2.5 2.6 2.9 3.0 3.2 3.6 3.7 4.0 4.5 4.7 5.0 5.4 5.6 6.0 6.3 7.1 8.0 8.8 10.0 11.0 12.5 14.2 16.0 17.5 20.0 22.2 25.0 28.0 30.0 32.0 35.0
CF tubes HF and CF tubes HF tubes
21
• Additional requirements ( acc. to DIN 28180)Steel grades:
23
ТЕМА RCB 2.31 − Standards of the Tubular Exchanger Manufacturers Association (9th edition).
АSТМ А688 − Standard Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater
Tubes.
АSТМ B163 − Standard technical requirements for tubes of nickel and nickel alloy for condensers and heat
exchangers.
DIN 28179 − Steel U-tubes for tubular heat exchangers - Technical delivery conditions.
Customer specifications.
• U-bent tubes
Technical requirements
U-BENT TUBES:
Straight tubes for bending (ASTM/ASME A/SA 213; ASTM B 163; ASTM B 729; ASTM B 407; ASTM B 423; ASTM A 789;DIN 28180; EN 10216-5)
* − Tubes of other alloys and steel grades can be produced in trial lots.
TP 304/304L
TP 316/316L
TP 316Ti
TP 317/317L
TP 321
TP 347
1.4301 (Х5CrNi 18 10)
1.4401 (Х5CrNiMo 17 12 2)
1.4541 (Х6CrNi 18 10)
1.4571 (Х5CrNiMoTi 17 12 2)
TP410 UNS S31803
UNS S32205
1.4462(X2CrNiMoN 22 5 3)
UNS S32750
UNS S32760
UNS N06600
UNS N08020
UNS N00880
UNS N08825
UNS N08904
24
Heat Treatment:
Heat treatment is carried out by resistometric method on a curved part of the tube and on straight parts 300 mm in length by heating the tube to the required temperature (see table below), and then soaking and rapid cooling of the tube to the temperature 370 C & below. Nitrogen blow-off tubes used before and during the process of heat treatment to protect the inner and outer surface from oxidation.
Marking − before bending by marking machine all over the tube length (bent section after heat treatment without marking). Marking is also possible after bending on the straight parts of U-bent tube. Packaging − closed wooden boxes of corresponding dimensions for each tube length, radius, diameter, according to PO requirements or in bundles wrapped in polyethylene film with plastic clamping spacers on each tube. Transportation − a truck with capacity of 20 tonnes, body length 13.6 m, width 2.46 m.
BENDING RADIUS − from 1.5 OD to 1250 mm. When ordering tubes with R ≤ 1.5D it is necessary to agree precision of geometrics. STRAIGHT TUBES MAXIMUM LENGTH (before bending) − 26 000 mm upon agreementLEG LENGTH − min 1 meter, max 10.5 meters (for max R=1250 mm)HYDROSTATIC TEST − maximum test pressure 600 bar, soaking 10 sec. with demineralized water. Compressed aircleaning after hydro-test.
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• Hollow BarsCENTRAVIS PRODUCTION UKRAINE PJSC produces standard sizes range most requested by machinery manufacturers, specified in the table. Requirements to hollow bars are in accordance with EN 10216-5 and ASTM A312.
The company produces a range of additional sizes not included in the standards. Also production of hollow bars according to NF A 49-317 is possible.
Hollow Bar − Standard sizes
Theoreticalweight, kg/m
Theoreticalweight, kg/m
Pipe length, mInsidediameter, mm
Insidediameter, mm
Outsidediameter, mm
Outsidediameter, mmmin max
Pipe length, m
min max
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The Company also produces Mechanical Tubing according to ASTM A511.Mechanical tubing according to ASTM A511 – Standard sizes
Outsidediameterinches
Wallthicknessinches
Outsidediametermm
Wallthicknessmm
Wallthicknessmm
Outsidediameterinches
Wallthicknessinches
Outsidediametermm
2.002.252.502.753.003.123.253.503.754.004.254.504.755.005.255.505.75
0.188 to 0.5000.188 to 0.7500.188 to 0.7500.188 to 0.8750.188 to 0.8750.188 to 0.8750.188 to 0.8750.188 to 0.8750.250 to 0.8750.250 to 0.8750.250 to 1.0000.250 to 1.0000.250 to 1.0000.250 to 1.0000.250 to 1.0000.250 to 1.0000.250 to 1.000
50.8057.1563.5069.8576.2079.3882.5588.9095.25101.60107.95114.30120.65127.00133.35139.70146.05
4.78 to 12.704.78 to 19.054.78 to 19.054.78 to 22.234.78 to 22.234.78 to 22.234.78 to 22.234.78 to 22.236.35 to 22.236.35 to 22.236.35 to 25.406.35 to 25.406.35 to 25.406.35 to 25.406.35 to 25.406.35 to 25.406.35 to 25.40
6.006.256.506.757.007.257.507.758.008.258.508.75
0.250 to 1.0000.250 to 1.5000.250 to 1.5000.375 to 1.5000.375 to 1.5000.375 to 1.5000.375 to 1.5000.375 to 1.5000.375 to 1.5000.375 to 1.5000.375 to 1.5000.500 to 1.500
152.40158.75165.10171.45177.80184.15190.50196.85203.20209.55215.90222.25
6.35 to 25.406.35 to 38.106.35 to 38.109.53 to 38.109.53 to 38.109.53 to 38.109.53 to 38.109.53 to 38.109.53 to 38.109.53 to 38.109.53 to 38.1012.70 to 38.10
Hollow Bar eccentricity (displacement of tube ID with respect to its OD, i.e. deviation from a common center) is given by formula 1 (in %) or by formula 2 (in mm):
One of the key parameters in hollow bar production is eccentricity. In order to keep eccentricity to the minimum CPU employs a process where billets are pre-drilled and expanded prior to extrusion. Other operations used to minimize eccen-tricity include vertical pre-heating before extrusion and a system of precision calibration of tooling. This ensures uniform wall thickness in cross section, which directly affects eccentricity. Thanks to the above process improvements CPU has a distinct advantage over other manufacturers of hollow bars.
where Е is eccentricity, %;
Smin, Smax – actual tube WT (min, max), mm.
where Е is eccentricity, mm;
Smin, Smax – actual tube WT (min, max), mm.
(1)
(2)
E = × 100%(Smax − Smin)
(Smax + Smin )
E = , mm(Smax − Smin)
2
Smax
D1
D2
Smin
Tolerances:
Under Hollow Bars production permissible variations in OD are plus tolerance, in ID are minus tolerance.
Outside diameterrange
Machining tolerances
mm For the outside diameter OD For the inside diameter ID For eccentricity (centre offset) E For out-of-straightness h
-0/+2% (min +1/-0 mm) +0/-2% (min +0/-1 mm) 10% 1 mm/m50 ≤D ≤250
Hollow bars and Mechanical tubing are supplied in a range of specially selected stainless and acid-resistant standard grades chosen to cover the majority of corrosion and processing problems that occur in daily practice.
Permissible Variations in Outside Diameter, Wall Thickness (Hot-Finished Round Tubing)Tolerances:
Standard steel grades
SpecifiedNominal Inch Size,Outside Diameter,in. [mm]
PrevailingRange ofCommerciallyAvailableMetric Sizes,mm
Ratio of WallThickness toOutsideDiameter
Outside Diameter,in. [mm]
Over Under Over Under Over Under
Wall Thickness, %
Over 0.172 [4.37] to 0.203in. [5.16 mm], incl
Over 0.203 in. [5.16 mm]
Outside Diameter and Wall Thickness Tolerances
USA
UNS Designation(Grade)
StandardASTM
Designation Standard NF Material No. Designation DIN Standard DIN
France Germany
Under 3 [75]
S 30400 MT 304(TP 304)
A 511(A312)
Z6CN18.09 A49-117 1.4301 X5CrNi18.10 EN 10216-5
S 30403 MT304L(TP 304L)
A 511(A312)
Z2CN18.10 A49-317(A49-117)
1.4306 X2CrNi19.11 EN 10216-5
S 31600 MT316(TP 316)
A 511(A312)
Z6CND17.11 (A49-117) 1.4401 X5CrNiMo17.12.2 EN 10216-5
S 31603 MT316L(TP 316L)
A 511(A312)
Z2CND17.12 A49-317(A49-117)
1.4404 X2CrNiMo17.12.2 EN 10216-5
3 [75] to 5½[140], excl
5½ [140] to[200],excl
Under 76.1
76.1 to 139.7,excl
139.7 to 203.2,excl
all wall thickness
8 [200] to 10¾[275],excl
10¾ [275] to12¾ [325],incl
203.2 to 273.1excl
273.1 to 323.9,incl
5 % and over
under 5 % 0.063 [1.6] 0.063 [1.6]
all wall thickness 0.031 [0.8]
0.047 [1.2]
0.047 [1.2]
0.047 [1.2]
0.047 [1.2]
0.031 [0.8]
all wall thickness 0.023 [0.6] 0.023 [0.6] 14 14
14 14
14 14
- -
- -
12.5 12.5
12.5 12.5
12.5 12.5
12.5 12.5
12.5 12.5
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List of standards in production
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UkraineCentravis Production Ukraine56 Trubnikov Avenue, Nikopol,Dnipropetrovsk Region, 53201,Phone/fax: +38 0566 69 11 01
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620078, Yekaterinburg,8-а Pedagogicheskaya str., office 15Phone/fax: +7 343 311 66 77
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Representative office CentravisSales Switzerland S.A. in Poland39 Lagiewnicka Street,30-417 Krakow, PolandPhone : +48 602 834 112Fax: +41 91 960 5061
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