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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.
Maldives ASTM A500 STEEL PIPE
Product Description
Brief introduction
ASTM A500 GR.C TUBE
Standard: ASTM A500
Grade:GR.A, GR.B, GR.C, GR.D
Outside diameter: 20-660MM Wall Thickness: 1.3-16MM
Outside diameter: 20*20-1200*1200MM Wall Thickness: 1.3-50MM
Outside diameter: 20*20-1500*1500MM Wall Thickness: 1.2-50MM
The Wall Thickness Tolerance: ±5%
Length: normally 5.8m, 6m, 12m or as your required
Surface Treatment: Bare Finish, Painting, Oiling, Galvanzation, 3PE, FBE coated......
Chemical composition
| COMPOSITION, % | |||
| GRADE A,B,and D | GRADE C | ||
| HEAT ANALYSIS | PRODUCT ANALYSIS | HEAT ANALYSIS | PRODUCT ANALYSIS |
Carbon(C),max | 0.26 | 0.30 | 0.23 | 0.27 |
Manganese(Mn),max | 1.35 | 1.40 | 1.35 | 1.40 |
Phosphorus(P),max | 0.035 | 0.045 | 0.035 | 0.045 |
Sulfur(S),max | 0.035 | 0.045 | 0.035 | 0.045 |
Copper(Cu),min | 0.20 | 0.18 | 0.20 | 0.18 |
Physical requirements
ASTM A500 ROUND STRUCTURAL TUBING | |||||
GRADE | TENSILE STRENGTH | YIELD STRENGTH | ELONGATION | ||
GR.A | 45000psi | 310MPa | 33000psi | 230MPa | 25% |
GR.B | 58000psi | 400MPa | 42000psi | 290MPa | 23% |
GR.C | 62000psi | 425MPa | 46000psi | 315MPa | 21% |
GR.D | 58000psi | 400MPa | 36000psi | 250MPa | 23% |
ASTM A500 SHAPED STRUCTURAL TUBING | |||||
GRADE | TENSILE STRENGTH | YIELD STRENGTH | ELONGATION | ||
GR.A | 45000psi | 310MPa | 39000psi | 270MPa | 25% |
GR.B | 58000psi | 400MPa | 46000psi | 315MPa | 23% |
GR.C | 62000psi | 425MPa | 50000psi | 345MPa | 21% |
GR.D | 58000psi | 400MPa | 36000psi | 250MPa | 23% |
Application
ASTM A500 steel pipe uses mainly include the following aspects:
1. Building structure support
The steel pipe is mainly used for structural parts in the construction field, such as frames, columns and beams. According to the website content, it is clearly marked as "Structure Pipe", and the material conforms to ASTM A500 standard, with high strength (yield strength 235-345 MPa, tensile strength 375-630 MPa), suitable for carrying the load of large buildings.
2. Machinery manufacturing and industrial equipment
Because its specifications cover a square cross-section of 15x15mm to 500x500mm and support a custom length of 1.2-30m, this type of steel pipe is often used to manufacture mechanical chassis, conveyor system supports and other industrial equipment components to meet the load-bearing needs of different scenarios.
3. Corrosion resistant environment applications
Corrosion resistant surface treatment options, including PVC coating, rust resistant oil and color spray paint, make it suitable for port facilities, outdoor guardrails or piping systems in humid environments for extended service life.
4. International engineering projects
Export records of suppliers show that such steel pipes have been sold to the United States, Canada, Australia, the Middle East and other countries, and are commonly used in transnational infrastructure projects, such as Bridges, power stations and transportation hubs.
5. Customized structural solutions
Manufacturers support special orders, end handling, assembly of parts and mixed transportation according to demand, further expanding its flexible application in complex steel structure projects (such as sports stadiums, storage shelves).
It should be noted that the ASTM A500 standard itself is mainly aimed at cold-formed welded and seamless carbon steel structural pipes, whose mechanical properties (such as 24-26% elongation of Q235 material) ensure stability under dynamic loads, and therefore also suitable for seismic structures or temporary support systems.
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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