STPT 370 carbon steel pipe complies with JIS G3456 standard which covers the specification for the application of carbon steel pipes under high temperature and pressure. These pipes are suitable for piping systems that transport high temperature fluids.
STPT 370 seamless steel pipe is a low carbon steel pipe with a maximum carbon content of 0.25%. In addition, it also contains 0.30-0.90% manganese. The low carbon content and moderate manganese content give this pipe good formability.
STPT 370 high temperature steel pipe is generally used to transport high temperature fluids such as steam, so it is widely used in industries such as oil, gas, chemicals and power. Low cost and moderate mechanical properties make it an economical and practical piping material.
JIS G3456 STPT 370 carbon pipe Grade and Chemical Composition (％)
|
Grade |
C≤ |
Si |
Mn |
P≤ |
S≤ |
|
STPT370 |
0.25 |
0.10~0.35 |
0.30~0.90 |
0.035 |
0.035 |
|
JIS G3456 STPT 370 carbon steel pipe 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.
High temp carbon steel pipe STPT 370
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)
Why Choose GNEE
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.
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