GB5310 20G boiler steel pipe

GB 5310-2008标准适用于用于制造蒸汽锅炉的无缝管，其压力高或更高，无缝管用作管道。

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	数据
Carbon	0.17-0.24
硅	0.17-0.37.
Manganese	0.70-1.00
Phosphorus(max)	0.03
硫磺（最大）	0.03
铬（最大）	0.25
Molybdenum(max)	0.15
铜(max)	0.2
Nickel(max)	0.25
钒（Max）	0.08

GB5310 20G的机械性能：

Properties	数据
屈服强度（MPa）	≥415.
Tensile Strength (Mpa)	240
伸长（％）	22

The W.T. tolerance of GB5310 20G：

W.T.(S)		宽度为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%

额外的条件

UT（超声波检查），
AR（仅作为热轧）
TMCP（热机械控制处理）
N(Normalized)
Q+T(Quenched and Tempered)
Z Direction Test(Z15,Z25,Z35)
Charpy V-Notch影响测试
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

锅炉管用于这些行业：

蒸汽锅炉
发电
Fossil Fuel Plants
Electric Power Plants
工业加工厂
Cogeneration Facilities

Seamless pipe规范，标准和识别

Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.