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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
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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.
VIEW MOREWho we are
TIANJIN LEFIN INDUSTRIAL CO.,LTD.
TIANJIN LEFIN STEEL GROUP containing Tianjin lefin Industrial Co.,Ltd. 、Tianjin lefin steel import & export Co.,Ltd and Tianjin Shengqifeng International Trading Co., Ltd. Its total assets is more than 30 million USD and our mills totally has more than 60,000 Square meters.The annual production of welded tube is more than 300000 tons per year. There are more than 300 employees and 20 engineers now. We have own lab to make sure every order quality .
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 ,all these steel pipes are suitable for the industries of oil, natural gas,ship building,chemical, water conservancy, electrical industry,steel structure, building and other related fields.
Be Founded In
Group Total Assets
Total Plant Area
Existing Staff
PRODUCTS
We can do any desigh welding project work according to customer design drawing.
Suppliers with wide influence and good reputation
LEFIN STEEL brand scaffolding pipes
Annual production of welded pipes
LSAW (Longitudinal double submerge arc welding) carbon steel pipe is a type of SAW pipe made of steel plates that were hot rolled by JCOE or UOE forming technology. JCOE technology represents the shaping and forming processes involved during manufacturing as well as the inner and outer welding and cold expansion carried out after welding. LSAW pipe sizes: OD 406 mm – 1620 mm, thickness 6.35 mm – 60 mm, pipe length 2 m – 18 m with the LSAW pipe having superiority.
Outer Diamter: 219.1mm – 4064mm (8″ – 160″) Wall Thickness: 6.0 mm – 25.4mm Length: 6mtr-50mtr SRL, DRL End:square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled, Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy,? Fusion Bond Epoxy, 3-layers PE)
ERW PIPE welded steel pipe Sizes:1/2 inch -- 24 inch,SCH10 SCH20 STD SCH40 SCH80 Surface treatment: black vanish coating ,bevel ends with PVC caps Standards: EN 10219 EN 10210 BS 1387-1985, ASTM A53, ASTM A618, ASTM A252-98, JIS G3444-2004,GB/T3091 G3452-2004, EN10219, EN 10255-1996, DIN 2440, GB/T13793-2008, API 5L PSL1/PSL2 Material :S235JRH S355J0H S355J2H, STK400/STK500, X42, X46, X52, X60, X65, L245,L360, L390
Why choose us
Provide customized services
Adhering to the conception “Win by quality and operate by good faith"，we try best to provide our consumers with high quality products. In addition, we can do any desigh welding project work according to customer design drawing.
View DetailsQuality Assurance
Mill produces according to ISO9001-2000 quality control system strictly. LEFIN STEEL already got ISO9001 IS014001 CE Certificate & FPC certificates.
Advanced Equipment
We also have 6 production lines produce hollow section from 20mm*20mm--1200mm*1200mm square & rectangular pipe, the thickness range from 0.7mm to 50mm according to en10210 en10219 astm a500 astm a501 jis g3466 as1163 standard etc.
Production Strength
Its total assets is more than 30 million USD and our mills totally has more than 60,000 Square meters. The annual production of welded tube is more than 300000 tons per year.
Professional Team
There are more than 300 employees and 20 engineers now. We have own lab to make sure every order quality .
RESOURCE
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2024-09
ASTM A252 is a standard of Piling pipe, the grades of ASTM A252 including Grade 1, Grade 2, Grade 3, Grade 3 is the most used option. ASTM A252 standard is widely used in constructions and structural buildings. This specification covers nominal thickness of the wall steel pipe piles of cylindrical shape and applies to pipe piles in which the steel cylinder acts as a permanent load- carring member, or as a shell to form cast-in-place concrete piles. LEFIN STEEL can produces the ASTM A252 piling pipe.
2024-09-24
23
2024-09
Black pipe and galvanized(GI) pipe are two common pipe types. Black pipe, also known as steel pipe, is made of carbon steel with a dark iron oxide coating on the surface. GI pipe, also known as galvanized iron pipe, is made of steel coated with zinc to prevent rust and corrosion. LEFIN STEEL can produces both black pipe and GI pipe.
2024-09-23
14
2024-09
How to make inside LSAW pipe and SSAW pipe uniform and smooth?
Longitudinal submerged arc welded pipes(LSAW PIPE) and Spiral submerged arc welded pipes(SSAW PIPE) are widely used in oil and gas transportation and building construction. But due to the welding, the interior of LSAW pipe and SSAW pipe is not always uniform or smooth, which can negatively impact its performance and durability. LEFIN STEEL mainly produces the LSAW PIPE and SSAW PIPE.
2024-09-14
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Please contact our professionals
If you have any questions about our products, please send us an email and we will contact you within 24 hours.
Contact us today to learn more!
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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