Complaint
Langzhi is a professional manufacturer of specialty alloy steel pipe products.
We have a wide range of standards and specifications, also accept customized specifications.
Including titanium, hastelloy, nickel alloy, super duplex stainless etc high corrosion resistance materials, which apply for those high corrosion
or special fields such as petrochemical, metallurgy, mineral, water resources, medical industry etc.
Langzhi Regular Specification
| Thickness (mm) | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.5 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 10 |
| Outside Diameter (mm) | ||||||||||||||||||
| Φ9.52 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / | / | / |
| Φ12.7 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / | / | / |
| Φ15.88 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / | / | / |
| Φ19.1 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / | / |
| Φ22 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / | / |
| Φ25.4 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / | / |
| Φ31.8 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / | / |
| Φ38.1 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / | / |
| Φ45 | / | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / | / |
| Φ50.8 | / | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / | / |
| Φ57 | / | / | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / |
| Φ60.3 | / | / | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / |
| Φ63.5 | / | / | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / |
| Φ76.2 | / | / | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / | / |
| Φ88.9 | / | / | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / |
| Φ101.6 | / | / | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / |
| Φ108 | / | / | / | / | / | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / |
| Φ114.3 | / | / | / | / | / | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / |
| Φ127 | / | / | / | / | / | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / |
| Φ133 | / | / | / | / | / | √ | √ | √ | √ | √ | √ | √ | √ | / | / | / | / | / |
| Φ141 | / | / | / | / | / | / | / | √ | √ | √ | √ | √ | √ | / | / | / | / | / |
| Φ159 | / | / | / | / | / | / | / | √ | √ | √ | √ | √ | √ | / | / | / | / | / |
| Φ168 | / | / | / | / | / | / | / | / | / | √ | √ | √ | √ | / | / | / | / | / |
| Φ219 | / | / | / | / | / | / | / | / | / | / | / | √ | √ | √ | √ | √ | / | / |
| Φ273 | / | / | / | / | / | / | / | / | / | / | / | √ | √ | √ | √ | √ | / | / |
| Φ325 | / | / | / | / | / | / | / | / | / | / | / | √ | √ | √ | √ | √ | √ | / |
| Φ355 | / | / | / | / | / | / | / | / | / | / | / | √ | √ | √ | √ | √ | √ | / |
| Φ377 | / | / | / | / | / | / | / | / | / | / | / | √ | √ | √ | √ | √ | √ | / |
| Φ406 | / | / | / | / | / | / | / | / | / | / | / | √ | √ | √ | √ | √ | √ | / |
| Φ426 | / | / | / | / | / | / | / | / | / | / | / | √ | √ | √ | √ | √ | √ | / |
Chemical Composition
| Element | N | C | H | Fe | O | Al | V | Mo | Ni | Pd | Ti |
| Type | |||||||||||
| GR.1 | ≤0.03 | ≤0.08 | ≤0.015 | ≤0.2 | ≤0.18 | Residual | |||||
| GR.2 | ≤0.03 | ≤0.08 | ≤0.015 | ≤0.3 | ≤0.25 | Residual | |||||
| GR.3 | ≤0.05 | ≤0.08 | ≤0.015 | ≤0.3 | ≤0.35 | Residual | |||||
| GR.7 | ≤0.03 | ≤0.08 | ≤0.015 | ≤0.3 | ≤0.25 | 0.12-0.25 | Residual | ||||
| GR.9 | ≤0.02 | ≤0.08 | ≤0.015 | ≤0.25 | ≤0.15 | 2.5-3.3 | 2.0-3.0 | Residual | |||
| GR.12 | ≤0.03 | ≤0.08 | ≤0.015 | ≤0.3 | ≤0.25 | 0.2-0.4 | 0.6-0.9 | Residual | |||
| GR.16 | ≤0.03 | ≤0.08 | ≤0.015 | ≤0.3 | ≤0.25 | 0.04-0.08 | Residual |
