Seamless austenitic steel tubes on ASTM A 312

NPS

Outside
diameter, mm

Wall thickness

Tolerance

5SA

10SA

40S

80S

on outside diameter

on wall thickness

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

mm

%

1/8

0.405

10.29

 

 

0.049

1.24

0.068

1.73

0.095

2.41

+0.4
-0.8

+20%
-12.5%

1/4

0.540

13.72

 

 

0.065

1.65

0.088

2.24

0.119

3.02

3/8

0.675

17.15

 

 

0.065

1.65

0.091

2.31

0.126

3.20

1/2

0.840

21.34

0.065

1.65

0.083

2.11

0.109

2.77

0.147

3.73

3/4

1.050

26.67

0.065

1.65

0.083

2.11

0.113

2.87

0.154

3.91

1

1.315

33.40

0.065

1.65

0.109

2.77

0.133

3.38

0.179

4.55

1 1/4

1.660

42.16

0.065

1.65

0.109

2.77

0.140

3.56

0.191

4.85

1 1/2

1.900

48.26

0.065

1.65

0.109

2.77

0.145

3.68

0.200

5.08

2

2.375

60.33

0.065

1.65

0.109

2.77

0.154

3.91

0.218

5.54

+0.8
-0.8

2 1/2

2.875

73.03

0.083

2.11

0.120

3.05

0.203

5.16

0.276

7.01

3

3.500

88.90

0.083

2.11

0.120

3.05

0.216

5.49

0.300

7.62

+15%
-12.5%

3 1/2

4.000

101.60

0.083

2.11

0.120

3.05

0.226

5.74

0.318

8.08

4

4.500

114.30

0.083

2.11

0.120

3.05

0.237

6.02

0.337

8.56

5

5.563

141.30

 

 

 

 

0.258

6.55

0.375

9.52

 

 

 - Cold-finished

 

 - Hot-finished

 

 - Cold-finished  + Hot-finished


   Cold-finished pipes are in lengths of 5-9 m.
   Hot-finished pipes are in lengths of 4-8 m.
   On agreement between parties production of pipes in sizes and grades not specified is possible.
   By the delivery of pipes of exact length the cutting tolerance is stipulated.
   Our carries out only seamless pipes deliveries.
   The pipes are delivered with batch weighing.

   Mechanical properties

Steel
grade

UNS

GOST 5632

Tensile strength, MPa

Yield strength, MPa

Relative elongation, %

TP304L

S30403

04Cr19Ni11

485

170

35

TP316L

S31603

03Cr17Ni13Mo2

485

170

35

TP304

S30400

08Cr18Ni10

515

205

35

TP304H

S30409

08Cr18Ni10

515

205

35

TP310S

S31008

10Cr23Ni18

515

205

35

TP316

S31600

08Cr17Ni13Mo2

515

205

35

TP316H

S31609

08Cr17Ni13Mo2

515

205

35

TP317

S31700

08Cr17Ni15Mo3

515

205

35

TP317L

S31703

03Cr17Ni15Mo3

515

205

35

TP321

S32100:

08Cr18Ni10Ti

 

 

 

Ø ≤ 3/8"