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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.
09-05
Global ERW PIPE market volatility, supply and demand tensions
Recently, the global ERW PIPE market has experienced market volatility, mainly due to the tension between supply and demand. Manufacturers in various countries have adjusted their production capacity to adapt to changes in market demand. The change has raised concerns among investors and consumers about the future of the ERW PIPE market.
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09-04
ERW PIPE Industry New Technology Brings New Opportunities
With the continuous application of new technologies, ERW PIPE industry is ushering in new development opportunities and broad market prospects.
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09-04
Welded pipes are pipes that are manufactured by welding the edges of steel plates or coils to form a cylindrical shape. This process involves joining two or more pieces of metal by applying heat and pressure, creating a strong and durable bond at the seam. Welded pipes are mainly divided into two categories, resistance welding and spiral welding. LEFIN STEEL can produces steel pipes including ERW pipes and SSAW pipes.
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09-04
ERW PIPE Industry Development New Trends
In recent years, the ERW PIPE industry has continued to develop under the impetus of market demand and technological innovation, providing more application options for various industries.
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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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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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