There are specific standard and type for seamless steel pipe which used in ship device. As manufacture of various steel pipes, Threewaysteel pipe company would have an introduction for seamless steel pipe used in ship device on size range and mechanical property.
|
Type of seamless steel pipe |
Diameter |
Wall thickness |
||
|
Cold rolled |
diameter |
Allowable deviation |
Wall thickness |
allowable deviation |
|
＞30～50 |
±0.3 |
≤30 |
±10％ |
|
|
＞50～219 |
±0.8％ |
≤30 |
±10％ |
|
|
Hot rolled |
＞219 |
±1.0％ |
＞20 |
±10％ |
|
Standard |
type |
Tensile Strength（MPa） |
yield strength（MPa） |
elongation（％） |
|
GB |
320 |
320～410 |
≥195 |
≥25 |
|
360 |
360～480 |
≥215 |
≥24 |
|
|
410 |
410～530 |
≥235 |
≥22 |
|
|
460 |
460～580 |
≥265 |
≥21 |
|
|
490 |
490～610 |
≥285 |
≥21 |
According to these specific data of seamless steel pipe for ship device, we can finally figure out which kind of products would be necessary during our purchase.
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