1 ERW76 Sizing section
ERW219 Forming section
ERW254 Sizing section
FF forming technology
Automatic stacking machine
This ERW API tube mill is designed for the production of API line pipes, petroleum casing pipes, and structural pipes with a diameter range of 273mm-508mm. The welding speed is 15~30m/min and the maximum output can reach 250,000T per year.
Production ProceduresCoil Loading → Uncoiling → Flattening/Leveling → Shearing & End Welding → Coil Accumulator → Forming → Welding → Inner & Outer Deburring → Annealing → Air & Water Cooling → Sizing & Straightening → Flying Saw Cutting → End Facing & Chamfering → Hydrostatic Testing → Ultrasonic Flaw Detection → Weighing & Measuring → Painting & Marking → Packaging → Warehouse Storage
Basic Technical Parameters Steel grade:
Line pipe: A, B, X42, X46, X52, X56, X60, X65, X70, X80
Petroleum casing pipe: H40, J55, K55, N80
Structural pipe: Q215, Q235, Q345, 20#