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About us
Tianjin lefin Industrial
TIANJIN LEFIN STEEL GROUP containing Tianjin lefin Industrial Co.,Ltd. 、Tianjin lefin steel import & export Co.,Ltd and Tianjin Shengqifeng International Trading Co., Ltd. -
Products
Steel Pipe Processing
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard -
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Service Capability
Guarantee Quality
Our steel pipes are suitable for oil, natural gas, shipbuilding, chemical industry, water conservancy, electrical, steel structure, construction and other related fields.
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard
Has rich experience in steel pipe processing, can be customized according to customer requirements according to the drawing and sample processing, assist in the development of new products.
JIS G3466 Carbon steel square and rectangular tubes for general structure JIS G3466 specifies square steel pipes (hereafter referred to as square steel pipes) used for structures such as civil engineering and construction. Grade: STKR 400, STKR 490 Square Size: 40*40mm-350*350mm Rectangular Size: 20*50mm-200*400mm Wall Thickness: 1.6-12mm
AS1163 C350/C450 Cold-formed Structural Steel Hollow Sections AS/NZS 1163 is the standard for cold-formed resistance-welded steel hollow sections in Australia and New Zealand. It applies to all steel hollow sections used in building structures. The standard has multiple grades such as C250, C350, C450, etc. The grade value represents the minimum yield strength of the material (in MPa).
Here’s a detailed comparison of S355-grade steel pipes (S355JR, S355J0H, S355J2H) under the EN 10210 (hot-finished) and EN 10219 (cold-formed) standards:
Address: Hengtai Road,Daqiuzhuang Town,Jinghai County,Tianjin,China
Mob: +8615122229899(whatspp)
Phone: +86 22 58171905
Fax: +86 22 58171902
E-mail:info@lefinsteel.com
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