ASTM A514 steel plate is a high-strength, cold-formed steel that is typically delivered in a quenched and tempered condition. It is specifically designed for structural applications where high strength and reduced weight are essential. This type of steel is widely used in heavy machinery, construction equipment, and other demanding environments due to its excellent mechanical properties.
Overview of ASTM A514 Steel Plate
ASTM A514 steel plates are manufactured using cold-forming techniques and are usually supplied in a heat-treated state to achieve their desired mechanical performance. These plates are known for their high yield strength, which allows them to support heavy loads while maintaining a lighter overall structure. This makes them ideal for use in engineering and industrial applications where durability and efficiency are key factors.
Chemical Composition (%)
| Grade | C | Mn | P | S | Si | Ni | Cr | Mo | V | Ti | Cu | Co | B | Zr |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A514Gr.A | 0.15-0.21 | 0.80-1.10 | 0.035 | 0.035 | 0.40-0.80 | - | 0.5-0.8 | 0.18-0.28 | - | - | - | - | 0.0025 | 0.05-0.15 |
| A514Gr.B | 0.12-0.21 | 0.7-1.00 | 0.035 | 0.008 | 0.20-0.35 | - | 0.4-0.65 | 0.15-0.25 | 0.03-0.08 | 0.01-0.04 | - | - | 0.005 | - |
| A514Gr.C | 0.10-0.20 | 1.1-1.50 | 0.035 | 0.035 | 0.15-0.30 | - | - | 0.15-0.25 | - | - | - | - | 0.001-0.005 | - |
Mechanical Properties
| Grade | Thickness (mm) | Tensile Strength (ksi [MPa]) | Yield Strength Min (ksi [MPa]) | Elongation in 50 mm, min (%) | Hardness HBW |
|---|---|---|---|---|---|
| A514Gr.A | ≤20 / 20-65 | 760-895 | 690 | 18 | 235-293 |
| A514Gr.B | - | 110-130 ksi | 100 ksi, min | 16% in 2 inch | 235-293 |
| A514Gr.C | ≤20 / 20-65 | 760-895 | 690 | 18 | 235-293 |
Each grade of ASTM A514 steel has specific characteristics tailored for different application needs. For example, Grade B offers enhanced toughness and impact resistance, making it suitable for more challenging environments. Understanding these specifications helps engineers and designers select the most appropriate material for their projects, ensuring both safety and efficiency.
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