Straight seam steel pipe: Large diameter straight seam steel pipe Large diameter straight seam steel pipe generally refers to straight seam steel pipe with an outer diameter of 500 mm or more. Currently, the maximum diameter of straight seam steel pipe can reach 1800 mm. Large-diameter straight seam steel pipe is mainly based on double-sided submerged arc welding production technology. The products are bent, jointed, welded inside, welded outside, straightened, flat, and other processes to meet relevant standards, and are the best choice for large-scale pipeline projects, water transmission and gas transmission projects, and urban pipe network construction. The West-East Gas Pipeline uses 200,000 tons of steel pipes of this type, which has a broad market prospect.
Large-caliber straight seam steel pipe standard large diameter straight seam steel pipe generally adopts GB/T3091-2001 and GB/T9711.1-1997 standards.
Large-caliber straight-seam steel pipe material Large-diameter straight seam steel pipe commonly used materials are Q235A, Q235B, 16Mn, 20#, Q345, L245, L290, X42, X46, X70, X80, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb.
Company's main business: thick-walled steel pipe, alloy steel pipe, straight seam steel pipe, geological steel pipe Address: No. 18, Dadong Steel City, Liaocheng Development Zone, Shandong Province Post Code: 252000
Contact person: Bu Lingwei Zhang Bing Tel: Mobile:/18266350353
company website:
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NARWILL IMPORT&EXPORT CO.LTD , https://www.narwill.com