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GB5310 20G boiler steel pipe
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.
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Grade 20G Seamless Steel Boiler Pipe is applicable to seamless tubes for making steam boiler whose pressure is high or higher and seamless tubes used as pipelines.

20G seamless steel pipe is a high-quality carbon structural steel, boiler material, the carbon content of 0.17-0.24%, tensile strength of 410Mpa, yield point 230-250Mpa. 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 GB5310 20G

Chemical elements

Data

Carbon

0.17-0.24

Silicon

0.17-0.37

Manganese

0.70-1.00

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 GB5310 20G

Properties

Data

Yield Strength (Mpa)

≥415

Tensile Strength (Mpa)

240

Elongation (%)

22

The W.T. tolerance of GB5310 20G

W.T.(S)

Tolerance of W.T.

<3.5

 +15%(+0.48mm min)

 -10%(+0.32mm min)

3.5-20

+15%,-10%

>20

D<219

±10%

D≥219

+12.5%,-10%

Additional Condition

UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.

GB5310 20G boiler steel pipe Application

GB5310 20G seamless steel pipes are mainly used for pressure vessels, machinery, pipe fittings, oil and chemical industry.

GB5310 20G boiler steel pipe Other Name

GB5310 20G boiler steel pipe, 20G boiler steel pipe, 20G boiler pipe

Boiler tubing is used in these industries:

· Steam Boilers

· Power Generation

· Fossil Fuel Plants

· Electric Power Plants

· Industrial Processing Plants

· Cogeneration Facilities

 


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