Origin	China
Model Number	No.2
Brand Name	ZS
Length	6-24m
Outer Diameter	21.3-273.1mm
Technique	Welded
Thickness	2.1-12.7mm

Longitudinally H.F. Welded Steel Pipe

ERW Steel Pipe Production Process

Uncoiling-Leveling-Strip slitting-End cutting-End shearing and welding-Supercoil accumulator-Strip edge and body ultrasonic testing-Forming-H.F. induction welding-Online ultrasonic testing for weld seam-Normalizing-Air cooling and water cooling-Sizing-Flying cut off-Sampling-Flattening testing-Straightening-End facing and beveling- Flush-out-Hydrostatic test-Offline ultrasonic testing for weld seam-Manual ultrasonic testing for pipe end-Visual and dimensional inspection-Length measuring and weighing-Marking-Coating-Pipe-end protector-Bundling-Shipping

Size range:

Outside diameter:21.3mm-273.1mm

Wall thickness:2.1mm-12.7mm

Applications: For oil line, casing, line pipe in petroleum and natural gas, structural pipe, line pipe in mineral slurry and bittern, water and gas. Also for chemical industry, electric power engineering  etc.

Production capacity: The ERW Steel Pipe Mill can produce welded pipes up to 400,000 tons a year.

Certificate of the company:

API 5 l    API 5 CT  ASTM  ISO9001:2000  CE

The company can produce various sizes of longitudinally and spirally welded steel pipes according to the following standards such as API ASTM JIS BS DIN and GB etc. And we can also process all sizes of steel strips according to the requirement of customers.