ERW/API 325 PIPE MILL LINE
Function
This pipe is used especially for Petroleum, Natural gas, City gas, Pipe network, Chemical industry, Electricity, Steel truss, Water and Gas pipeline; it is widely used for a variety of pressure pipelines
Process flow
Coil loading—Uncoiling—Pinching & Leveling—End Shearing‐Strip joining—Horizontal spiral strip accumulator—Forming‐HF Welding– O.D bead cutter–SEAM ANNEALER —Cooling—Sizing & Turks head‐Measuring roll—Flying cut off machine—Run out conveyor_ End facing & chamfering_ Hydrostatic Test- Ultrasonic Testers—Packing
| Specification | |
| Raw material | Carbon Steel, Cold or Hot Rolled pre slit strip coils of weld able grade with max. 0.2% carbon. |
| Material grade | Q235A~Q345，B，10#、20#，J55，N80，X42-X70 |
| Round pipe O.D. | Min 114mm, max.325mm |
| Wall thickness of Round | Min.4.0mm, max.14.0mm |
| Square tube | Min 90x90mm, max250x250 mm |
| Rectangle tube | Min 80x100mm, max200x300 mm |
| Wall thickness sq & rec. | Min.0.8mm, max.12.5mm |
| H.F. welder | Solid state,1000 kW |
| Line Speed | Max 40 m/min |
| Pipe length | 5 – 12 m |
| Standard | API 5LX, API 5L A&B, ASTM A53 A&B, Up to API X-70 |
