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 % |
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.
Our team is highly trained and experienced in servicing and producing all types of steel supplies.