Original
By certification 
ERW Round Steel Tube and Pipe
Details
Standard: ASTM A53, API 5L, API 5CT, EN10219-2, EN 10210, EN 10305, GB/T 9711, GB/T 3091-2008 Size of round pipes ranges from Φ219 mm ~Φ630 mm; Wall thickness: 2.5 mm to 22 mm. Length 5.8 m～24 m. Steel Grade of Line Pipes: B, X42-X80 Steel Grade of Petroleum Casing Pipes: J55, K55, N80, etc. Steel Grade of Structural Pipes:Carbon Structural Steel, Alloy Structural Steel Welding manner: High frequency resistance welding Welding seam status: heat treatment
Advanced ERW Pipe Mill Line
With international advanced equipment, testing method and automative control technology, this production line has an annual production capacity of 500,000 tons.
The Quality Control System
We always adhere to the policy of quality first and keep to the path of vitalizing our company with science and
technology. We have a first class labortary, where mechanical, chemical and metallographic examinations can be undertaken. We
also have advanced online ultra-sonic testing equipment and hydrostatic tester. We adopt strict quality control according to
international standard.
Testing played a necessary role in production and after production. We use high-quality facilities and a complete set of
testing system such as X-ray flaw detectors, ultrasonic flaw hydrostatic pressure testing machines, tensile testing machines,
metallographic analyzers, physics and chemistry laboratories and other detection systems. Our high-quality production testing
procedures enable our production and testing to meet the required standards and to satisfy our customers.
| No | Name | Applied location |
| 1 | Raw material ultrasonic testing device | Steel plate detection |
| 2 | In-line ultrasonic testing device | Weld seam detection |
| 3 | Flattening testing device | Technology testing |
| 4 | Hydraulic testing device | Finishing section |
| 5 | Off-line ultrasonic testing device | Weld seam detection |
| 6 | Pipe ends auto ultrasonic testing device | Pipe end detection |
| 7 | Weighing equipment | Finishing section |
| 8 | Microscope | physical and chemical inspection laboratory |
| 9 | Spectrograph | physical and chemical inspection laboratory |
| 10 | Universal test machine | physical and chemical inspection laboratory |
| 11 | Charpy impact test machine | physical and chemical inspection laboratory |
| 12 | DMTT Drop-testing machine | physical and chemical inspection laboratory |
Production process
Raw material: hot rolled steel coil
Technology: Length: 6-18 m (as standard and special lengths up to 53 m)
Painting and packing
ERW Round Steel Tube and Pipe
Surface protect: varnish painting(common protect), 3LPE (anti-corrosion coating)
Ends type: PE(plain ends), BE (bevel ends)
Pipe ends protect: plastic ends cap, pipe ends protector
Delivery
ERW Round Steel Tube and Pipe Encasement is done by our experienced forklift and crane driver in our factory.
Application
ERW Round Steel Tube and Pipes are used in various engineering purposes, fencing, scaffolding, line pipes etc.
Equipped with advanced facilities, WANLEI is engaged in offering erw round steel tube and pipe with high quality, strong
durability and reasonable price, which is one of the professional manufacturers and suppliers in China. Under strict quality
control and management system, we can assure the high quality of our products. Please be free to buy steel pipe with our
factory.
