ASTM A36 Grade B Structural Steel Tube: Carbon Precision Steel Tube for Structural Use
Material
ASTM A36 Grade B is a low carbon structural steel that is widely used in construction and manufacturing. It is known for its excellent weldability, machinability, and ability to be heat treated to harden its surface. This grade is commonly used in structural applications due to its good mechanical properties and cost-effectiveness.
Specification
ASTM A36 specifies the requirements for carbon structural steel shapes, plates, and bars of structural quality for use in building and other structures. The steel is produced in various forms, including tubes, which are essential for various structural applications.
Key Features
- High Strength: Provides excellent strength-to-weight ratio.
- Weldability: Easily welded using standard welding techniques.
- Machinability: Can be machined to precise dimensions.
- Versatility: Suitable for a wide range of applications.
- Cost-Effective: Economical choice for structural applications.
Chemical Composition
| Element | Composition (%) |
| Carbon (C) | 0.26 max |
| Manganese (Mn) | 0.60 - 0.90 |
| Phosphorus (P) | 0.04 max |
| Sulfur (S) | 0.05 max |
| Silicon (Si) | 0.40 max |
| Copper (Cu) | 0.20 max |
Mechanical Properties
| Property | Value |
| Yield Strength (ksi) | 36 |
| Ultimate Tensile Strength (ksi) | 58 - 80 |
| Elongation (%) | 20 (min) |
| Modulus of Elasticity (ksi) | 29000 |
| Poisson's Ratio | 0.26 |
Steel Grade
- ASTM A36 Grade B: This is the specific grade of steel that meets the ASTM A36 specifications with a focus on structural applications.
Application
ASTM A36 Grade B structural steel tubes are used in various applications, including:
- Construction of buildings and bridges
- Manufacturing of structural components
- Fabrication of machinery and equipment
- Support structures in industrial applications
Possible Alternative Grades
While ASTM A36 Grade B is widely used, there are alternative grades that may be suitable depending on specific requirements:
- ASTM A572: Higher strength steel with better corrosion resistance.
- ASTM A992: Commonly used for steel frames in buildings.
- ASTM A500: Standard specification for cold-formed welded and seamless carbon steel structural tubing.
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ASTM A36 Grade B Structural Steel Tube Carbon Precision Steel Tube For Structural Use Images
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