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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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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.
Israel ASTM A501 TUBE
Category:
Product Description
Basic Information
ASTM A501 specifies hot-formed welded and seamless carbon steel structural tubing, which is categorized into three grades: Grade A, Grade B, and Grade C. Each grade has distinct chemical compositions, mechanical properties, applications, and advantages that cater to various structural needs.
ASTM A501 TUBE
Grade: GR.A, GR.B, GR.C
Size:
SQUARE: 20MM * 20MM - 1200MM * 1200MM
RECTANGULAR: 20MM * 30MM - 1500MM * 1200MM
Wall Thickness: 1.3MM - 50MM
Wall Thickness Tolerance: ±10%
Length: 1M - 12M, normally 5.8M, 6M, 12M, also depends on the requirements.
Surface Treatment: Galvanizing, Black vanish, Carving, Slightly oil painting, PVC clothes cover each bundle etc.
Application: Bolted construction of bridges and buildings, as well as for General structural purposes.
Chemical Requirements
Composition,% | ||||
| Grade A | Grade B,C | ||
Element | Heat analysis | Product analysis | Heat analysis | Product analysis |
Carbon,maxA | 0.26 | 0.3 | 0.22 | 0.26 |
Manganese,maxA | - | - | 1.4 | 1.45 |
Phosphorus,max | 0.035 | 0.045 | 0.03 | 0.04 |
Suffur,max | 0.035 | 0.045 | 0.02 | 0.03 |
Copper,when copper steel is specified,min | 0.2 | 0.18 | 0.2 | 0.18 |
A For each reduction of 0.01 percentage point below the specified maximum for carbon,an increase of 0.06 percentage point above the specified maximum for manganese is permitted up to a maximum of 1.60% by heat analysis and 1.65%by product analysis.
● The higher carbon content in Grades B and C contributes to increased strength and durability, making them suitable for more demanding structural applications.
● Lower carbon content in Grade A enhances weldability, which is crucial for applications where joining of materials is required.
Mechanical Property
Tensile | ||||
| Wall Thickness,in.[mm] | GradeA | Grade B | Grade C |
Tensile strength,min,psi [MPa] | AIl | 58000[400] | 65000 [448] | 70000[483] |
≤1 [25] | 39000 [270] | 46000[315] | 50000 [345] | |
>1[25]and≤2[50] | 38000[260] | 45000[310] | 49000[340] | |
Yield strength,min,psi[MPa] | >2[50]and≤3[76] | 36500[250] | 42500[290] | 47500[330] |
>3[76]and≤4[100] | 35000[240] | 40000[280] | 46000[315] | |
Elongation,min,% |
| 25 | 24 | 23 |
● The higher yield and tensile strengths of Grades B and C provide greater structural integrity and load-bearing capabilities.
● Grade A offers a balance of strength and ductility.
Applications
● Grade A:
This grade is commonly used in general structural purposes where moderate strength is required. It is suitable for non-critical structural components that do not require high load-bearing capacities.
● Grade B:
Grade B is widely used in bridge construction, bolted structures, and riveted structures due to its high strength and good mechanical properties. It is ideal for manufacturing frames for large machinery and fuselage structures of aircraft, where high strength and toughness are necessary to withstand high pressure and harsh environmental conditions.
● Grade C:
Grade C is known to be used in applications that require even greater strength than Grade B. This grade is often specified for heavy-duty structural applications where the highest load-bearing capacity is essential.
Advantages
● Grade A: Offers a balance of strength and ductility, making it versatile for a wide range of applications. It is also more cost-effective compared to higher grades due to its moderate strength requirements.
● Grade B: Its high strength, good weldability, and corrosion resistance make it an indispensable material in bridge construction and other heavy-duty applications. The availability of various shapes and manufacturing processes ensures structural strength and quality.
● Grade C: Presumably, Grade C offers the highest strength among the three grades, providing superior load-bearing capabilities for critical structural applications.
ASTM A501 grades A, B, and C differ in their applications, advantages, and significance. Grade A is versatile for general use, Grade B is essential for heavy-duty structures, and Grade C is critical for the most demanding applications. Each grade plays a unique role in the construction and engineering industry, ensuring the right material is used for the right application, thereby enhancing safety, efficiency, and structural integrity.
Differences Between ASTM A501 And ASTM A500
ASTM A500 and ASTM A501 are standards for carbon steel structural tubing, but they differ in forming processes and applications.
● ASTM A500 uses cold forming, resulting in higher strength and tighter tolerances, making it suitable for lighter construction and machinery.
● ASTM A501 uses hot forming, providing better impact resistance and energy absorption, ideal for large bridges and heavy structures.
● A501 has stricter chemical composition limits to enhance weldability and toughness.
● A501 generally offers higher yield and tensile strength.
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Mob: +8615122229899(whatspp)
Phone: +86 22 58171905
Fax: +86 22 58171902
E-mail:info@lefinsteel.com
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