The hot rolled seamless steel pipe is available in many varieties, including ordinary steel pipe, low pressure boiler pipe, medium pressure boiler pipe, high pressure boiler pipe, alloy steel pipe, stainless steel pipe, petroleum cracking tube, geology tube and other types of steel tubes.
SpecificationMaterial Grade | ASTM A106 B, A 53B, API 5L B, 20#, 45#, 40Cr |
Standard | ASTM/ASME, GB, DIN, JIS, T14975, etc. |
Certificate | API 5L Grade B, ISO 9001:2008 |
Item | Carbon Steel Pipe | Square Steel Tube |
Outside Diameter | 60.3-1000 mm | 15×15-400×400 mm |
Wall Thickness | 2-65 mm | 1.4-16 mm |
Length | standard length or in accordance with the requirements of customers |
Production Process of Hot Rolled Seamless Steel Pipe
Circular Tube Billet → Heating → Piercing → Three-roll Skew Rolling, Continuous Rolling or Extrusion → Pipe Extracting → Sizing (or Reducing) → Cooling → Straightening → Hydrostatic Test (or Flaw Detection) → Marking → Warehousing