Hot New Products 37Mn Seamless Steel Pipe/ Alloy Steel Pipe
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.
Our company promises all buyers of the first-class products and solutions as well as most satisfying post-sale support. We warmly welcome our regular and new shoppers to join us for Hot New Products 37Mn Seamless Steel Pipe/ Alloy Steel Pipe, Honesty is our principle, professional operation is our work, service is our goal, and customers’ satisfaction is our future!
Our company promises all buyers of the first-class products and solutions as well as most satisfying post-sale support. We warmly welcome our regular and new shoppers to join us for China 37Mn Alloy Seamless Steel Tube, If you have any requests, pls email Us with your detailed demands, we’ll give you the most wholesale Competitive Price with the Super Quality and the Unbeatable First-class Service ! We can give you the most competitive prices and high quality, because we’re much more Expert! So be sure to do not hesitate to contact us.
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.
Our company promises all buyers of the first-class products and solutions as well as most satisfying post-sale support. We warmly welcome our regular and new shoppers to join us.
Hot New Products 37Mn Seamless Steel Pipe/ Alloy Steel Pipe
Honesty is our principle, professional operation is our work, service is our goal, and customers’ satisfaction is our future!
China 37Mn Alloy Seamless Steel Tube
If you have any requests, pls email Us with your detailed demands, we’ll give you the most wholesale Competitive Price with the Super Quality and the Unbeatable First-class Service ! We can give you the most competitive prices and high quality, because we’re much more Expert! So be sure to do not hesitate to contact us.
