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The American Standard H-Beam W8×40 is a wide-flange steel beam widely used in construction, bridges, industrial structures, and other engineering applications. It is manufactured according to ASTM A6/A6M standards and typically made from high-quality materials such as ASTM A36 or ASTM A992. Below is a detailed introduction to its features, specifications, and advantages.
1. Basic Parameters
| Parameter Name | Value |
|---|---|
| Model | W8×40 |
| Height (h) | 8.25 inches (209.6 mm) |
| Flange Width (b) | 8.07 inches (205.0 mm) |
| Web Thickness (tw) | 0.36 inches (9.1 mm) |
| Flange Thickness (tf) | 0.56 inches (14.2 mm) |
| Weight | 40 lb/ft (59.5 kg/m) |
2. Material and Standards
Material: Typically made of ASTM A36 (carbon structural steel) or ASTM A992 (high-strength low-alloy steel for structural applications).
Standards: Complies with ASTM A6/A6M standards for structural steel shapes.
3. Mechanical Properties
| Performance Indicator | Value |
|---|---|
| Yield Strength (Fy) | 36 ksi (250 MPa) for ASTM A36; 50 ksi (345 MPa) for ASTM A992 |
| Tensile Strength (Fu) | 58-80 ksi (400-550 MPa) for ASTM A36; 65 ksi (450 MPa) for ASTM A992 |
| Elongation | ≥ 21% for ASTM A36; ≥ 18% for ASTM A992 |
4. Advantages and Features
High Strength:
The W8×40 H-beam offers excellent load-bearing capacity, making it suitable for high-stress applications such as bridges and industrial structures.
Lightweight Design:
Despite its strength, the W8×40 is relatively lightweight, reducing structural weight and foundation costs.
Precise Dimensions:
Manufactured to strict American standards, ensuring accurate dimensions for easy installation and compatibility with other structural components.
Excellent Weldability and Machinability:
The material properties of ASTM A36 and ASTM A992 allow for easy welding, cutting, and fabrication.
Durability and Corrosion Resistance:
When properly treated or coated, the W8×40 exhibits good resistance to environmental factors, extending its service life.
Wide Range of Applications:
Ideal for use in building frames, bridges, platforms, machinery, and other structural applications.
5. Applications
Construction: Building frames, columns, and beams.
Bridges: Main girders and support structures.
Industrial Structures: Platforms, mezzanines, and heavy equipment supports.
Infrastructure: Highway and railway projects.
6. Summary
The American Standard H-Beam W8×40 is a versatile and high-performance structural steel product. Its combination of strength, lightweight design, and precise dimensions makes it a reliable choice for a wide range of engineering and construction projects. Whether for buildings, bridges, or industrial applications, the W8×40 delivers exceptional performance and cost efficiency.
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