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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.
09-03
What are the differences between API5L PSL1 and PSL2 steel pipe
API 5L is the standard specification for line pipe used for the transportation of oil, natural gas and other fluids. It includes two product specification levels: PSL1 and PSL2. There are differences between API 5L PSL1 and API5L PSL2. Generally speaking, PSL2 has more stringent requirements than PSL1. LEFIN STEEL can produces both API5L PSL1 and API5L PSL2 steel pipe.
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07-20
Hollow section (CHS / SHS / RHS)
LEFIN STEEL is professional hollow section factory we mainly produce SHS ( Square hollow section ) 20MMX20MM --- 900MMX900MM thickness:1.5--50mm RHS ( Rectangular hollow section ) 20MMX10MM --- 1000MMX500MM thickness:1.5--50mm CHS ( Circular hollow section) 20MM---2048MM thickness:1.5mm--50mm Standard:ASTM A500 EN10219 EN10210 JIS G3466 Grade: S235JRH S275JR S355JRH S355J0H S355J2H Q235 Q355B Q355C Q355D STK400 STK490 Surface treatment: Galvanizing,painting,blast and painting,FBE(powder coating),slightly oil Hot finished treatment PVC Cloth cover every bundle
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07-20
Post tension system containing following materials 1. Anchor System: unbonded monostrand anchor system, multistrands anchor system, flat anchor system, arch type flat anchor, anchor barrel and wedges, ground anchor, rock and soil anchor, anchor wedges, anchor bearing plate, spiral reinforcing rings
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07-20
prestressed concrete steel strand
Prestressing Post Tensioning Construction Stressing 12.7mm 15.2mm PC Steel Strand Wire PE coated low relaxation PC strands are widely used in post tensioning prestressed concrete structure, like cable stay bride or PT slabs. It is characterized by having no need of room for future expansion and grout, convenient construction, material saving and easily bending etc.
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04-14
SSAW pipe full name is Spiral submerged arc welded steel pipe a kind of metal pipe with spiral seam welded by submerged arc welding technology. SSAW pipe is made of hot rolled coiled steel by automatic submerged arc weld under normal atmospheric temperature. All the pipes are produced according to API Spec 5L, GB/T9711.1, GB/T9711.2, ASTM A252-89 standard. These pipes mainly used in petroleum and natural gas industry to transport flammable and non-flammable liquid and steel construction.
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04-14
difference between LSAW pipe and SSAW pipe
LSAW Pipe (Longitudinal Submerged Arc-Welding Pipe), also called SAWL pipe. It is taking the steel plate as raw material, mold it by the molding machine, then do double-sided submerged arc welding. Through this process the LSAW steel pipe will get excellent ductility, weld toughness, uniformity, plasticity and great sealing.
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03-16
we already supply for post tensioning system in kuwait,post tensioning system in bahrain,post tensioning system in saudi arabia,post tensioning system in doha.post tensioning system in oman. PC STRAND(unbonded & bonded),Anchor,Corrugated Duct,Wedge and bearing plate,mono jack and pump etc.
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03-15
2021 Spring canton fair will hold online on time. Organized by CFTC - China Foreign Trade Centre (Group), the biggest complex trade show in China - China Import and Export Fair (Canton Fair) 2021 will welcome its 129th anniversary at China Import and Export Fair Pazhou Complex, Guangzhou during 15th-19th April, 23rd-27th April, and 1st-5th May 2021.
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03-11
Canton Fair 2021 Spring, 129th China Import and Export Fair Phase 1: 15th-19th April 2021 9:30-18:00(not confirmed) Phase 2: 23rd-27th April 2021 9:30-18:00(not confirmed) Phase 3: 1st-5th May 2021 9:30-18:00(not confirmed) our company LEFIN STEEL will attend it
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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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