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The outer diameter of the hot-rolled seamless pipe is generally greater than 32mm, the wall thickness is 2.5-200mm, the outer diameter of the cold-rolled seamless pipe can reach 6mm, the wall thickness can reach 0.25mm, and the thin-walled pipe can reach 5mm. Rolling has higher dimensional accuracy than hot rolling.
Smooth surface, uniform thickness of products technology: cold-rolled, cold-drawn seamless steel pipe is made of the whole round steel perforated, steel pipe surface no weld, called seamless steel pipe. According to the production method, seamless steel tube can be divided into hot-rolled seamless steel tube, cold-rolled seamless steel tube, cold-drawn seamless steel tube, extrusion seamless steel tube, pipe jacking, etc. . Seamless steel tube is divided into round and special-shaped by section shape, special-shaped tube has square, oval, triangle, hexagonal, melon seed-shaped, star-shaped, wing-shaped and other complex shapes. The maximum diameter is 900 mm and the minimum diameter is 4 mm. According to different uses, there are thick-wall seamless steel tube and thin-wall seamless steel tube. Seamless steel pipe is mainly used for Petroleum geology drilling pipe, petrochemical cracking pipe, boiler pipe, bearing pipe and automobile, tractor, aviation high-precision structural steel pipe, etc. .
Product name | Carbon Steel Seamless Pipe |
Standard | ASTM A106, ASTM A53, API 5L Gr.B, DIN17175,DIN1629, GB. |
Material | ASTM A106B, ASTM A53B, API 5L Gr.B,ST52, ST37,ST44 |
Outer diameter | 10mm-426mm |
Wall thickness | 1-100mm |
Length | 3-12M or as required |
Tolerance | Control with in the standard, OD:+/-1%, WT:+/-5% |
Surface treatment | Black/Peeling/Polishing/Machined |
Technique | Hot rolled |
Heat Treatment | Annealed; Quenched; Tempered |
price terms | FOB,CFR,CIF,EXW all acceptable |
Delivery Detail | Inventory About 3-5 days； custom-made 10-15 days；riding to order's quantity. |
Loading port | Tainjian port, China |
Packing | Standard export packing |
Payment Terms | T/T, L/C at sight, etc. |
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