The manufacturing process of STPT 370 seamless steel pipe usually includes hot rolling or cold rolling. This kind of steel pipe has high strength, high pressure resistance and good corrosion resistance, so it is widely used in fields such as petroleum, chemical industry, electric power and construction.

standard:JIS

Surface :1. Galvanized 2. Black and Color Painting

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introduction

STPT 370 seamless steel pipe is a low carbon steel pipe with a maximum carbon content of 0.25%. Additionally, contains 0.30-0.90% manganese. The low carbon content and moderate manganese content give this pipe good molding and forming properties.
STPT 370 carbon steel pipe complies with the JIS G3456 standard, which covers specifications for carbon steel pipe applications at high temperatures and pressures. These pipes are suitable for piping systems carrying high temperature fluids.
STPT 370 high-temperature steel pipes are typically used to transport high-temperature fluids, such as steam, and are therefore widely used in industries such as oil, natural gas, chemicals, and power. Low cost and moderate mechanical properties make it an economical and practical pipe material.

Technical Data

Grade and Chemical Composition (％)

Grade	C≤	Si	Mn	P≤	S≤
STPT370	0.25	0.10~0.35	0.30~0.90	0.0.35	0.035

Mechanical Properties
Grade	Tensile strength	Yield strength	Elongation %
	N/ m㎡	N/ m㎡	No.11 or No.12 test pieces	No. 5 test pieces	No. 4 test piece
			Longitudinal	Transverse	Longitudinal	Transverse
STPT370	370 min	215 min	30 min	25 min	28 min	23 min

1. The above elongation value is not applicable to tubes with outer diameter <40mm. But it must be recorded.
2. The sample meets the requirements of JIS Z2201 standard;
3. For the tube with wall thickness <8mm, when the sample No. 12 or No. 5 is used, the minimum value of the elongation is reduced by 1mm according to the wall thickness, and 1.5% is subtracted from the above value.

JIS G3456 STPT 370 Carbon Steel Pipes mainly used for piping at a temperature over 350℃.
Manufacture:Seamless or electric resistance welding process
Out Dimensions: 14mm-508mm
Wall Thickness: 2mm-60mm
Length: Fixed(6m,9m,12,24m)

company advantage

Gnee specializes in the research and development, production and sales of seamless steel pipes. We can provide the standards, specifications, materials and uses of carbon steel pipes, alloy steel pipes and their processed products that customers require. The annual output of the factory reaches 250,000 tons. Ultra-thick-walled steel pipes, alloy steel pipes, extra-long steel pipes, and fixed-size steel pipes are our production advantages.

FAQ
1.Q.How do we trust your company?
A. We specialist in steel business for many years, authenticated by SGS,welcome to visit our factory.
2.Q.Do you provide custom made Products service?
A: Yes if you have your own design , we can produce according to your specification and drawing.
3.Q.Do you have quality control?
A.Yes, we have got BV.SGS certification.