ERW API Tube Mill, 325mm-720mm

Round, Square, Rectangular Tube

This is our ERW API tube mill with a maximum output of 150,000T products per year!

Production Procedures

Coil 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


Raw Material Specifications

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#

Coil Outer Diameter: Ø1350mm~Ø2000mm
Coil Inner Diameter: Ø610~Ø762mm
Coil Weight: Max. 35T
Strip Width: 1020mm~2260mm
Strip Thickness: 6mm~20mm

Finished Pipe Specifications
Technical Standards: API 5L API 5CT GB/T 3091 JIS G3452 JIS G3444 JIS G3445 ASTM A513 EN 10219
Pipe Outer Diameter: Ø325mm~Ø720mm
Pipe Length: 6~20m
Welding Speed: 10~25m/min
Annual Output: 300,000 tons/year
Total Installed Capacity: Approx. 4,800 kW
Design Concepts

Improves serviceability and productivity Increase stability of the product quality Maximize output Lower equipment cost To satisfy small-batch production requirements of multiple products To improve the environment and safety during operation