Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. seamless pipes dominates 65% of market share in Chinese boiler industry.
| Types | Sizes | allowed tolerance |
||
|---|---|---|---|---|
| Ordinary steel pipe |
Senior steel pipe |
|||
| Hot rolled |
Out diameter | <50 | ± 0.50 mm |
± 0.40 mm |
| ≥50 | ± 1 % |
± 0.75 % |
||
| Wall thickness | <4 | ± 12.5 % |
± 10 % |
|
| 4-20 | +15% -12.5% |
± 10 % |
||
| ≥20 |
± 12.5 % |
± 10 % |
||
| Cold drawn | Out diameter |
6-10 | ± 0.20 mm |
± 0.10 mm |
| >10-30 | ± 0.40 mm |
± 0.20 mm |
||
| >30-50 | ± 0.45 mm |
± 0.25 mm |
||
| >50 | ± 1 % |
± 0.5 % |
||
| Wall thickness | ≤1 |
± 0.15 mm |
± 0.12 mm |
|
| 1-3 | + 15 % - 10 % |
± 10 % |
||
| >3 | + 12.5 - 10 % |
± 10 % | ||
Specification, standard and identificationSeamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.
Our team is highly trained and experienced in servicing and producing all types of steel supplies.
