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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.
PRODUCTS CENTER
Papua New Guinea ASTM A53 Steel Pipe
Product Description
ASTM A53 WELDED PIPE
Products Description
ASTM A53 WELDED PIPE
Standard: ASTM A53
Grade: GR.A, GR.B
Outside Diameter: 20 - 660mm
Wall Thickness:1.3 -16 mm
Length: 5.8m, 6m, 12m or as your requirement
Surface Treatment: Painting, Oiling, Galvanized, 3LPE,3PE
Chemical Composition
Chemical Composition,% | |||||||||
Electric Resistance Welding | |||||||||
Grade | C | Mn | P | S | Cu | Ni | Cr | Mo | V |
GR.A | 0.25 | 0.95 | 0.05 | 0.045 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
GR.B | 0.30 | 1.20 | 0.05 | 0.045 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
Physical Requirements
Electric Resistance Welding | ||
Grade | Tensile strength | Yield strength |
GR.A | 330 | 415 |
GR.B | 205 | 240 |
Application Situation
The application scenario of ASTM A53 steel pipe mainly includes the following aspects:
1. Low pressure fluid delivery
Suitable for water, gas (such as natural gas, steam) and oil and other low-pressure liquid transportation, commonly used in water supply systems, drainage projects and gas transportation.
2. Building structure
It is widely used in building frames, greenhouse structures, bridge construction and pier support, such as pile pipes, bridge components or building supports. Galvanized ASTM A53 Schedule 40 steel pipes can also be used in scaffolding and fence structures.
3. Agriculture and industry
It is used as a water pipeline in agricultural irrigation, as an equipment support or process pipeline in the chemical, power and petroleum industries.
4. Special environmental requirements
The galvanized version of ASTM A53 steel pipe is enhanced by the hot dip galvanizing process and is suitable for wet or corrosive environments.
In addition, the production process of ASTM A53 steel pipe is flexible and supports customized dimensions and surface treatments (such as bare, oiled, galvanized) to meet different engineering needs.
Advantages
The advantages of ASTM A53 steel pipe are mainly reflected in the following aspects, combined with its material characteristics, manufacturing process and application scenario comprehensive analysis is as follows:
1. High strength and durability
ASTM A53 steel pipe (especially Grade B and C grades) has excellent mechanical properties, tensile strength ≥415 MPa, yield strength ≥240 MPa, can withstand high pressure and mechanical loads. Its seamless steel pipe Type (Type S) has higher overall strength due to no weld defects and is suitable for high-pressure fluid transportation and heavy structural support. For example, in the scenes of building frames, bridge piles and pipes, its compressive and deformation resistance is outstanding.
2. Flexible manufacturing process
ASTM A53 includes three manufacturing types:
Type S (seamless): produced by hot rolling or cold drawing process, no weld, high reliability;
Type E (resistance welding) and Type F (furnace welding) : low cost, suitable for general low-voltage scenarios.
In addition, customized dimensions (outer diameter 21.3-610mm, wall thickness 6-70mm) and surface treatments (such as galvanized, oiled or bare pipe) are supported to meet different engineering needs.
3. Corrosion resistance
The galvanized version of ASTM A53 steel pipe forms a protective layer through the hot-dip galvanizing process, which significantly enhances rust resistance and is suitable for wet or corrosive environments (such as underground pipes, agricultural irrigation systems). For the chemical industry, chemical resistance can be further optimized by coating or lining.
4. Wide application scenarios
• Low pressure fluid transport: water, natural gas, steam and oil;
Construction and infrastructure: Bridges, pier supports, scaffolding and fences;
• Industrial field: chemical equipment pipeline, hydraulic system, automobile manufacturing, etc.
• Special requirements: Some specifications can replace API 5L piping for oil and gas transportation.
5. Comply with international standards and certifications
ASTM A53 steel pipes comply with international standards such as ASME and API, and some products are certified by ISO, CE and SGS to ensure quality reliability and global applicability. Its chemical composition and mechanical property parameters are clear, which is convenient for engineering design and selection.
Summary
The combined advantage of ASTM A53 steel pipe is its high cost performance (both strength and cost), diverse selection (seamless/welded, galvanized/bare pipe), and wide applicability, making it a universal type of pipe in the construction, energy and industrial sectors.
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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