Good User Reputation for En 10297 Hot Rolled 37Mn Alloy Steel Pipe for LPG and CNG Gas Cylinder
Short Description:
Steel gas cylinders are manufacturing special steel cylinders. Requirements are usually smaller carbon content, strictly control the sulphur and phosphorus contents, meet the strength at the same time, good toughness and impact energy. 100% non-destructive testing.
No matter new purchaser or aged consumer, We believe in very long phrase and dependable relationship for Good User Reputation for En 10297 Hot Rolled 37Mn Alloy Steel Pipe for LPG and CNG Gas Cylinder, Foundation around the enterprise concept of Good quality very first, we would want to satisfy more and far more friends from the word and we hope supply the very best merchandise and assistance to you.
No matter new purchaser or aged consumer, We believe in very long phrase and dependable relationship for China 37Mn Alloy Seamless Steel Tube, We’ve established long-term, stable and good business relationships with many manufacturers and wholesalers around the world. Currently, we are looking forward to even greater cooperation with overseas customers based on mutual benefits. Make sure you feel free to contact us for more details.
The seamless tubes shall be used for the manufacturing of refillable seamless steel quench & tempered gas cylinder with actual maximum tensile strength less than 950Mpa. Since the gas cylinders are manufactured by hot spinning process the steel grade used shall be compatible for the manufacturing of high pressure gas cylinders.
GB 18248 specifies the size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of seamless steel pipes for gas cylinders and accumulator housings. GB 18248 is suitable for manufacturing seamless steel pipes for gas cylinders and accumulator housings.
|
ELEMENT |
C |
Si |
Mn |
p |
S |
P+S |
Al |
Ni |
Cu |
|
Min |
0.32 |
0.20 |
1.40 |
— |
— |
— |
0.035 |
— |
— |
|
Max |
0.38 |
0.30 |
1.70 |
0.02 |
0.01 |
0.025 |
0.060 |
0.15 |
0.30 |
|
Tensile strength (MPa) |
Yield strength (MPa) |
Elongation (%) |
|
≥750 |
≥630 |
≥16 |
Manufacture: tubes to GB/T 6479 shall be manufactured by hot rolled or cold drawn.
Heat Treatment: the tubes shall be produced by heat treated, WT≤30mm normalizing & tempering, WT>30mm quenching & tempering or normalizing & tempering.
Inspection & Test: chemistry composition analysis, tension test, flattening test, flaring test, impact test, macroscopic examination, non-metallic inclusions, NDT, surface inspection and dimension check.
Length: 4000mm; 6000mm; 9000mm; 12000mm; and so on.
Max developed length: 30 meters, also U bending, finning, studded process can be provided.
Option: shot blasting on the outside surface to remove mill scale, make the surface matte colour; surface polishing as preparation work done for further processing, for instance finning.
OD: Φ50-325mm.
WT: 3-55mm.
Tolerance of OD: ±0.75%.
Tolerance of Wall thickness: -10%——+12.5%.
Roundness of the inner and outer diameters: 80% of the tolerance of the outer diameter is not exceeded.
The inclination of the end face: ≤2mm.
Straightness: 1mm/1m.
No matter new purchaser or aged consumer, We believe in very long phrase and dependable relationship.
Good User Reputation for En 10297 Hot Rolled 37Mn Alloy Steel Pipe for LPG and CNG Gas Cylinder
Foundation around the enterprise concept of Good quality very first, we would want to satisfy more and far more friends from the word and we hope supply the very best merchandise and assistance to you.
China 37Mn Alloy Seamless Steel Tube
We’ve established long-term, stable and good business relationships with many manufacturers and wholesalers around the world. Currently, we are looking forward to even greater cooperation with overseas customers based on mutual benefits. Make sure you feel free to contact us for more details.
