20G

20G is the steel material of GB 5310- 2008. GB 5310- 2008 standard is applicable to seamless tubes for making steam boiler whose pressure is high or higher and seamless tubes used as pipelines.

The range of 20G pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practice.

20G seamless steel pipe for boiler

20G is our main production of steel, we can provide 20G Seamless pipe with high quality and competitive price. Here to introduce you to our 20G seamless pipe basic chemical properties and mechanical properties.

Chemical Compositions(%) of 20G:

Chemical elementsData
Carbon0.17-0.24
Silicon0.17-0.37
Manganese0.70-1.00
Phosphorus(max)0.03
Sulfur(max)0.03
Chromium(max)0.25
Molybdenum(max)0.15
Cuprum(max)0.2
Nickel(max)0.25
Vanadium(max)0.08

Mechanical Properties of 20G:

PropertiesData
Yield Strength (Mpa)≥415
Tensile Strength (Mpa)240
Elongation (%)22

Surface treatment:

Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting

Related products
The range of AS
ASTM A335 Pipe
ASTM A333 Grade
ASTM A335 P11 i
Sunny Steel can
20G is the stee

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