pipes with various sizes, materials and specification.
Welkin supply different sizes and grades coils&plate for oil& gas , shipbuilding, infrastructure.etc
Valves with different application, even customized
Welkin provide costomized services for our clients for specific project requirements.
Seamless pipes for high pressure cylinder
OD: 38 - 1200mm
WT: 3.5 -120mm
Length: 4 - 12
Process: Hot rolled, Hot rolled+Hot expand,Hot rolled+Cold drawn, or Hot rolled+hot expand+cold drawn
Delivery Condition: Without heat treatment, Normalized + Tempered,Quenched + Tempered
Specification | Grade | Outside Diameter | Wall thickness |
ASTM A519 | 4130、 4140、 4142、 4145 | 219~720 | 5~50 |
EN10297 | 30CrMo4、 34CrMo4、 42CrMo4 | 219~720 | 5~50 |
GB28884 | 30CrMoE、 42CrMoE | 219~720 | 5~50 |
