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The W12×22 is a widely used American Standard wide-flange H-beam (W-beam) known for its excellent structural performance and versatility. Below is a detailed introduction to its specifications, material, mechanical properties, and applications.
1. Basic Parameters
| Parameter Name | Value |
|---|---|
| Model | W12×22 |
| Height (h) | 12.00 inches (304.8 mm) |
| Flange Width (b) | 4.03 inches (102.4 mm) |
| Web Thickness (tw) | 0.26 inches (6.6 mm) |
| Flange Thickness (tf) | 0.43 inches (10.9 mm) |
| Weight | 22 lb/ft (32.7 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 (Standard Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling).
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% (ASTM A36); ≥ 18% (ASTM A992) |
4. Advantages and Features
High Strength: Suitable for high-load structures due to its excellent yield and tensile strength.
Lightweight Design: Weighs only 22 lb/ft, reducing structural weight and foundation costs.
Precise Dimensions: Manufactured to strict American standards, ensuring easy installation and compatibility with other structural components.
Versatility: Can be used in a wide range of applications, including buildings, bridges, and industrial structures.
Seismic Performance: Offers good ductility and toughness, making it suitable for earthquake-prone areas.
5. Applications
Building Construction: Used in beams, columns, and frames for residential, commercial, and industrial buildings.
Bridges: Ideal for bridge girders and support structures due to its high strength-to-weight ratio.
Industrial Structures: Suitable for platforms, mezzanines, and heavy equipment supports.
Infrastructure Projects: Commonly used in infrastructure such as highways, railways, and airports.
6. Summary
The W12×22 is a high-performance American Standard H-beam that combines strength, lightweight design, and precise dimensions. Its compliance with ASTM standards ensures reliability and versatility, making it a preferred choice for structural engineers and architects. Whether for buildings, bridges, or industrial applications, the W12×22 delivers exceptional performance and cost efficiency.
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