Seamless steel tube
| Item | Seamless steel tube/pipe |
| Introduction | Seamless steel pipes are perforated from whole round steel, and steel pipes without welds on the surface are called seamless steel pipes. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and top pipes. According to the cross-sectional shape, seamless steel pipes are divided into two types: round and special-shaped. Special-shaped pipes have square, elliptical, triangular, hexagonal, melon-shaped, star-shaped, and finned pipes. The maximum diameter is 900mm and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes.A steel pipe with no joints along the perimeter of its cross-section. According to different production methods, it can be divided into hot-rolled pipe, cold-rolled pipe, cold-drawn pipe, extruded pipe, pipe jacking, etc., all have their own process regulations.
The materials are ordinary and high-quality carbon structural steel (Q215-A～Q275-A and 10～50 steel), low alloy steel (09MnV, 16Mn, etc.), alloy steel, stainless and acid-resistant steel, etc. According to the purpose, it is divided into two categories: general purpose (used for water, gas pipelines and structural parts, mechanical parts) and special purpose (used for boilers, geological prospecting, bearings, acid resistance, etc.).
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| Standard | ASTM, DIN, ISO, EN, JIS, GB, etc. |
| Material
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A53, A283-D, A135-A, A53-A, A106-A, A179-C, A214-C, A192, A226, A315-B, A53-B, A106-B, A178-C, A210-A-1, A210-C, A333-1.6, A333-7.9, A333-3.4, A333-8, A334-8, A335-P1, A369-FP1, A250-T1, A209-T1, A335-P2, A369-FP2, A199-T11, A213-T11, A335-P22, A369-FP22, A199-T22, A213-T22, A213-T5, A335-P9, A369-FP9, A199-T9, A213-T9, etc. |
| Size
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Wall thickness: 0.1mm-200mm, or as required.
Outside diameter: 6.0mm-2500mm, or as required. Length: 6m, 5.8m, 8m, 11.8m, 12m, or as required. |
| Surface | Black painted, PE coated, Galvanized, Varnished, HDPE, etc. |
| Application
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Seamless pipes are widely used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts, etc. |
| Package | Standard export package, or as required. |
| Price term | Ex-work, FOB, CIF, CFR, etc. |
| Payment | T/T, L/C, Western Union, etc. |
| Certificates | ISO, SGS, BV. |
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