What are the specifications and standards for 20G alloy pipes

 20G is a kind of steel material that can be used in a pressure environment. 20G alloy pipe has durable strength, good oxidation resistance, and structural stability. It is a high-quality carbon structural steel that can be used to manufacture high-pressure steam boiler pipes, etc. , alloy structural steel and stainless heat-resistant steel Seamless steel pipe.

20G alloy pipe specification standard:
GB3087 —— Chinese National Standard
GB5310 —— Chinese National Standard
ASME SA210 - American Boiler and Pressure Vessel Code
ASME SA213 - American Boiler and Pressure Vessel Code
DIN17175 - Federal German Industrial Standard

The chemical composition of 20G SMLS pipes: (%)

C

Si

Mn

P

S

0.17-0.23

0.17-0.37

0.35-0.65

≤0.025

≤0.015

The Mechanical Properties of 20G SMLS pipes:

Yield Strength Mpa

Tensile Strength Mpa

Elongation %

≧245

410-550

≧22

20G and 20# steel are similar and are often used for comparison. In addition to the same carbon content, 20G has some trace elements that are more suitable for use in boilers and pressure vessels.

In addition to the 20G grade, high-quality carbon structural steels include 20MnG and 25MnG; alloy structural steels include 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, etc.; rust heat-resistant steels commonly used 1Cr18Ni9, 1Cr18Ni11Nb, etc.

If you are interested in high pressure pipes or boiler pipes, you can consult us at any time and serve you wholeheartedly.


From:http://boilersteelpipe.com/pro/smls/what-are-the-specifications-and-standards-for-20g-alloy-pipes.html

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