Product Name Thick wall Seamless steel pipe Outside Diameter(mm) 20mm-820mm Wall thickness(mm) 3mm-50mm Certification ISO9001: 2000 Standard ASTM, BS, DIN GB Grade 10#, 20#, 45#, A53(A, B), Q195, Q215, Q235, ST 52 Place of Origin Hebei China(Mainland) Secondary Or Not Non-secondary Export Europe, North America, the Middle East, Africa, Asia and other countries and regions, well received by consumers! Seamless theoretical weight by Seamless calculation formula: (OD - Wall Thickness) × Thickness × 0.02466 = Seamless weight per meter Seamless process Seamless Steel Tube - Inspection - Skinning - Testing - Heating - perforation - Pickling - grinding - dry lubricant - welding head - cold drawn - solution treatment - acid - - pickling passivation - test - cold - to oil - the first cut - dried - in polish - outside polished - test - identification - product packaging Application Tube with hollow cross-section, a large number of channels for transporting fluids, such as the transportation of oil, natural gas, gas, water and some solid materials, pipes, etc. Production Cold rolled/hot rolled/Cold drawn Standard @ Chinese National Standard / China National Standard / GB / T 8162 @ DIN / Deutsche Industrie Normen / DIN 1629/DIN2391 @ ASTM standard, ASTM A 106, ASTM A53 Package Greased strapping or anointing oil packing
