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W21x182 A36/A572GR50 Wide flange beam
A36 h shaped beam material
1. Basic information
Full name: ASTM A36 h section steel
Implementation standard: ASTM A36/A36M
Material characteristics: low carbon structural steel with good plasticity and welding performance.
Application: widely used in construction, bridges, machinery manufacturing, shipbuilding and other fields.
2. Chemical composition
Carbon content: usually below 0.25%
Main elements:
Silicon (Si): ≤0.4%
Manganese (Mn): 0.8%-1.2%
Sulfur (S): ≤0.045%
Phosphorus (P): ≤0.045%.
3. Mechanical properties
Yield strength: ≥250 MPa (36 ksi)
Tensile strength: 400-550 MPa
Elongation: ≥20%.
A572GR50 h shaped steel material
1. Basic information
Full name: ASTM A572 Gr50 h beam steel structure
Implementation standard: ASTM A572/A572M
Material characteristics: high-strength low-alloy niobium-vanadium structural steel, with strength and toughness better than A36 h beam material.
Use: Suitable for scenes requiring higher strength such as buildings, bridges, and mechanical equipment.
2. Chemical composition
Carbon content: ≤0.23%
Main elements:
Manganese (Mn): 1.00%-1.60%
Sulfur (S): ≤0.04%
Phosphorus (P): ≤0.04%
Niobium (Nb), vanadium (V): Add in appropriate amounts to improve strength.
3. Mechanical properties
Yield strength: ≥345 MPa (50 ksi)
Tensile strength: 450-620 MPa
Elongation: ≥18%.
W21x182 w shape beam Introduction
1. Dimensions and weight
Web height (H): about 21 inches (about 533 mm)
Web thickness (t1): about 5-30 mm
Flange width (B): about 100-300 mm
Flange thickness (t2): about 5-30 mm
Length: usually 1-12 meters, can be customized according to needs.
2. Mechanical properties
Section modulus: calculated according to specific specifications, providing good bending resistance.
Weight: about 185-200 pounds/foot (about 275-295 kilograms/meter).
3. Application scenarios
Building structures: such as beams and columns of high-rise buildings and factory buildings.
Bridge engineering: bridge beams that bear large loads.
Mechanical equipment: such as cranes, pressure vessels, etc.
Comparison of A36 and A572GR50 in W21x182 steel
| characteristic | A36 structural h beam | A572GR50 steel h beam |
|---|---|---|
| Yield Strength | ≥250 MPa | ≥345 MPa |
| tensile strength | 400-550 MPa | 450-620 MPa |
| Welding performance | good | Better, suitable for complex welding needs |
| Applicable scenarios | Building structures, bridges, mechanical equipment, etc. | Buildings and bridges with higher strength requirements |
| Economical | Lower strength, lower cost | High strength, high cost |
