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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.
Product Description
BASIC INFORMATION
Name: S355J2H STEEL PIPE
Type: CHS(Circular Hollow Section), RHS(Rectangular Hollow Section), SHS(Square Hollow Section)
Standard: EN 10210
Outside Diameter: CHS: 20*20 - 1200*1200mm Wall Thickness: 1.3-50mm
RHS: 20*20 - 1200*1500mm Wall Thickness: 1.2 - 50mm
ERW: 20-660mm Wall Thickness: 1.3 - 50mm
LSAW:406-1420mm Wall Thickness: 10 - 50mm
SSAW: 219-4084mm Wall Thickness: 7.75 - 25.4mm
Length: 5.8m, 6m, 12m or asyour required
Surface Treatment: hot dipped galvanized, oil painting, black vanish ,3PE,3LPE painting
CHEMICAL COMPOSITION
Unalloyed hollow section steel for steel structure | |||||||
Analyze the melting chemical composition of products with thickness ≤65mm | |||||||
GRADE | COMPOSITION % MAX | ||||||
C | Si | Mn | P | S | N | ||
Nominal thickness≤40mm | 40mm＜Nominal thickness≤65mm | ||||||
S355J2H | 0.22 | 0.22 | 0.55 | 1.60 | 0.035 | 0.035 | - |
PHYSICAL REQUIREMENT
Mechanical properties of unalloyed steels | |||||
GRADE | Yield strength | Tensile strength | |||
Nominal thickness≤16 | 16＜Nominal thickness≤40 | 40＜Nominal thickness≤65 | Nominal thickness＜3 | 3≤Nominal thickness≤65 | |
S355J2H | 355 | 345 | 335 | 510-680 | 490-630 |
APPLICATION
In which industries is S355J2H commonly used?
1 Construction industry:
Construction industry: often used to manufacture frame structures and support systems for high-rise buildings, as well as the construction of Bridges, tunnels and other infrastructure. Its high strength and good toughness make it widely used in the structural frames of high-rise buildings such as beams, columns and floors.
2 Machinery manufacturing industry:
It is suitable for the manufacture of various mechanical equipment and components, such as machine tools, pressure vessels, etc. Its excellent mechanical properties and corrosion resistance make the equipment more reliable and able to withstand higher working intensity and pressure.
3 Shipbuilding industry:
It can be used for the manufacture of structural components of ships to meet the requirements of material strength and toughness of ships.
4 petrochemical industry:
It is used to manufacture various petrochemical equipment, pipelines, such as reactors, heat exchangers, etc. Its excellent corrosion resistance and high temperature performance make the equipment can operate stably in high temperature, high pressure and corrosive environment.
5 Power industry:
It can be used to manufacture power station equipment, etc., to meet the requirements of power equipment for material performance.
6 Automobile manufacturing industry:
It can be used to manufacture certain structural components of automobiles, such as frames, etc., to improve the structural strength and safety of automobiles.
7 Offshore oil platform construction:
S355J2H steel pipe has good processability and low temperature performance, and can be used for the construction of offshore oil platforms.
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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