Gas Cylinder Pipes

Gas Cylinder Pipes

Gas Cylinder Pipes Standard: GB 18248--------- China National Standard JIS G3429-------- Japanese Industrial Standards Purpose: For the manufacture of pressure vessels, gas cylinders seamless. The main production steel grades: 37Mn、34Mn2V、30CrMo、35CrMo、STH11、STH12、STH21、STH22

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Product Details

Gas Cylinder Pipes

Standard:

GB 18248--------- China National Standard

JIS G3429-------- Japanese Industrial Standards

Purpose:

For the manufacture of pressure vessels, gas cylinders seamless.

The main production steel grades:

37Mn, 34Mn2V, 30CrMo, 35CrMo, STH11, STH12, STH21, STH22


Mechanical properties:

Standard

Grade

Tensile strength (MPa)

Yield strength (MPa)

Elongation (%)

GB18248

37Mn

≥750

≥630

≥16

34Mn2V

≥745

≥530

≥16

30CrMo

≥930

≥785

≥12

35CrMo

≥980

≥835

≥12


Chemical composition

Standard

Model

Chemical Composition



C

Si

Mn

PS

Cu

Ni

Mo

Cr

V

GB18248

37Mn

0.34~0.40

0.10~0.30

1.35~1.65

≤0.030

≤0.20

≤0.30

/

≤0.30

/


34Mn2V

0.30~0.37

0.17~0.37

1.40~1.75

≤0.030

≤0.20

≤0.30

/

≤0.30

0.07~0.12


30CrMo

0.26~0.34

0.17~0.37

0.40~0.70

≤0.030

≤0.20

≤0.30

0.15~0.25

0.80~1.10

/


35CrMo

0.32~0.40

0.17~0.37

0.40~0.70

≤0.030

≤0.20

≤0.30

0.15~0.25

0.80~1.10

/

JIS G3429

STH11

≤0.50

0.10~0.35

≤1.80

≤0.035

/

/

/

/

/


STH12

0.30~0.41

0.10~0.35

1.35~1.70

≤0.030

/

/

/

/

/


STH21

0.25~0.35

0.15~0.35

0.40~0.90

≤0.030

/

≤0.25

0.15~0.30

0.80~1.20

/


STH22

0.33~0.38

0.15~0.35

0.40~0.90

≤0.030

/

≤0.25

0.15~0.30

0.80~1.20

/


Edit by Mr. Will Fan of KRM/BSW
Contact us directly by:  
Email: will@kingruimansteelpipe.com  
Tel / Whatsapp: 0086-18511695725
Skype: willsteelpipe1

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