ASTM A513 Carbon Tubing: Electric Resistance Welded Carbon Steel Tube Mechanical Tubing
The ASTM A513 specification covers electric resistance welded carbon steel tubing for use as mechanical tubing. This standard outlines the requirements for mechanical properties, chemical composition, manufacturing methods, and dimensional tolerances of carbon steel tubes used for various industries and applications.
Material and Specification
ASTM A513 carbon tubing is manufactured from hot-rolled or cold-rolled steel, depending on the desired finished product. The tubing is produced by electric resistance welding (ERW) process, which involves the use of electricity to join the edges of the steel strip together. This welding method ensures a strong and continuous bond, resulting in reliable and durable mechanical tubing.
The standard specification for ASTM A513 covers various grades of carbon steel tubing with different wall thicknesses, diameters, and dimensional tolerances. These specifications ensure that the tubes meet the required mechanical properties and dimensional accuracy for their intended applications.
Key Features
- Electric Resistance Welded (ERW): The use of ERW technology in the manufacturing process provides consistent and reliable welds, ensuring the structural integrity and strength of the carbon steel tubing.
- Mechanical Tubing: ASTM A513 carbon tubing is designed and manufactured to meet specific mechanical properties, making it suitable for various applications that require strength and durability.
- Wide Range of Sizes: The standard covers a broad range of sizes, allowing for versatility in applications across multiple industries.
- Good Dimensional Accuracy: The specification includes tolerances for wall thickness, outside diameter, and length to ensure precise dimensions are achieved during production.
- Smooth Surface Finish: The carbon steel tubing produced under ASTM A513 has a smooth surface finish, making it suitable for applications where aesthetics are important.
Chemical Composition
| Element | Carbon (%) | Manganese (%) | Phosphorus (%) | Sulfur (%) | Silicon (%) |
| Minimum Content | 0.15 | 0.30 | 0.035 | 0.035 | - |
| Maximum Content | 0.25 | 1.20 | 0.035 | 0.035 | 0.15 |
Mechanical Properties
| Property | Minimum Value |
| Tensile Strength, MPa (ksi) | 440 (64) |
| Yield Strength, MPa (ksi) | 370 (54) |
| Elongation in 2 inches (50.8 mm), % | 15 |
| Hardness (HRB) | 83 |
Steel Grade
The ASTM A513 standard provides different grades of carbon steel tubing, including:
- Grade 1008
- Grade 1010
- Grade 1015
- Grade 1020
- Grade 1026
Application
ASTM A513 carbon tubing finds its usage in various applications where mechanical strength, durability, and dimensional accuracy are crucial. Some common applications include:
- Automotive components
- Machinery parts
- Construction materials
- Furniture manufacturing
- Agricultural equipment
- Transportation equipment
Possible Alternative Grades
While ASTM A513 is widely used, there are alternative grades available that offer similar properties and capabilities. Some possible alternative grades to consider, depending on specific requirements, are:
- ASTM A500
- ASTM A178
- ASTM A214
- ASTM A333
- ASTM A519
In conclusion, ASTM A513 carbon tubing is a reliable and versatile choice for mechanical tubing applications, offering excellent weldability, dimensional accuracy, and mechanical properties. With various steel grades available and its wide range of applications, ASTM A513 meets the needs of diverse industries where carbon tubing is essential.
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