1. Normal Out Diameter:

21.3mm-1220mm

2. Normal Wall Thickness:

3mm-60mm

3. Normal Length:

3m-12m

4. Producing Standard:

American ASTM, API 5L, API 5CT, Japanese JIS, German DIN, Chinese GB/T, BS standard

5. Main Material:

Carbon Steel & Low Alloy steel. ASTM A53, A106, A210 etc; JIS STPG42, G3454, G3456 etc; German St42-2,St45-8, DIN1626, DIN17175 etc; Chinese 20#, Q345, 16Mn etc

6. Special specifications:

Available according to customer’s requirements and quantity.

7. End Shape:

Beveled end , plain end, varnished, or adding plastic caps to protect the two ends as per customer’s requirements

8. Surface treatment:

Painted, Oiled, galvanized or phosphate etc

9. Usage:

• Widely used in the mechanical treatment field, petrochemical industry, transport and construction field
• Ordinary structural purposes and mechanic structural purposes, for example in construction field, fulcrum bearing etc;
• The transportation of fluids in the projects and big equipments, for example transport of water, oil, gas etc
• Can be used in low and medium pressure boiler for the transportation of fluids, for example steam tube, big smoke tube, small smoke tube, generating tube etc

10. Certificates:

ISO9001-2000, ISO14000, ISO18000, API 5L certificate

11. Pictures

our producing flow chart, our factory, production line, inspecting equipments, our products are listed below for your reference.

12. Chemical composition:

Please See below.