ASTM A36 hot-rolled structural angle steel
ASTM A36 is a low-carbon structural steel standard developed by the American Society for Testing and Materials. L-shaped angle steel produced by hot rolling process, with equal or unequal cross-section, is widely used in building frames, machinery manufacturing, bridge engineering and other fields.
Specifications of ASTM A36 hot-rolled structural angle steel:
Side length (mm) | Thickness (mm) | Cross-sectional form |
25 x 25 | 3 | Equal angle steel |
30 x 30 | 4 | Equal angle steel |
40 x 40 | 5 | Equal angle steel |
50 x 50 | 6 | Equal angle steel |
25 x 35 | 3 | Unequal angle steel |
30 x 40 | 4 | Unequal angle steel |
40 x 50 | 5 | Unequal angle steel |
Properties of ASTM A36 hot-rolled structural angle steel:
1. Chemical composition
ASTM A36 Angle Steel Chemical Composition | ||||
C | Mn | Si | P | S |
0.25 - 0.29 | 0.80 - 1.20 | ≤0.40 | ≤0.04 | ≤0.05 |
2. Mechanical properties
ASTM A36 Angle Steel Mechanical Properties | |||
Yield Strength | Tension strength | Elongation | Hardness |
≥250 MPa | 400-550 MPa | ≥20%(under 25mm thickness) | ≤217 HB |
3. Processing properties
ASTM A36 hot-rolled structural angle steel has good weldability and processability, and is suitable for a variety of processing methods such as cutting, bending, welding, etc. This makes it very convenient in on-site construction and structural connection.
Comparison with other structural steels:
Compare Projects | ASTM A36 Angle Steel | Q235 Angle steel | High-strength angle steel |
Yield strength | ≥250 MPa | ≥235 MPa | ≥345 MPa |
Tensile strength | 400-550 MPa | 370-500 MPa | 450-620 MPa |
Chemical composition | Low Carbon Steel | Low carbon steel | Contains more alloying elements |
Weldability | Good | Good | Good, but special processes |
Application range | General Structural | General structural | High-strength structural engineering |
Note: Q235 is a Chinese standard structural steel with similar performance to ASTM A36, but the specific parameters may be different.
