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Alloy steels comprise different kinds of steels which exceed the composition limits of Mn, C, Mo, Si, Ni, Va, and B set for carbon steels. They respond well to mechanical and heat treatments. They are designated by AISI four-digit numbers. The first two digits represent the main alloying elements, and the last two digits represent the carbon content present in the alloy in hundredth of a percent.
The following datasheet gives an overview of AISI A514 grade A/B/C alloy steel, which has high yield strength.
The following table shows the chemical composition of AISI A514 grade A/B/C alloy steel.
| Element | Content (%) |
|---|---|
| Iron, Fe | 97 |
| Manganese, Mn | 0.95 |
| Chromium, Cr | 0.65 |
| Silicon, Si | 0.6 |
| Molybdenum, Mo | 0.23 |
| Carbon, C | 0.15 - 0.210 |
| Zirconium, Zr | 0.1 |
| Boron, B | 0.00250 |
The physical properties of AISI A514 grade A/B/C alloy steel are highlighted in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm3 | 0.284 lb/in³ |
The following table outlines the mechanical properties of AISI A514 grade A/B/C alloy steel.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 760 - 895 MPa | 110000 - 130000 psi |
| Yield strength (@ strain 0.200%) | 690 MPa | 100000 psi |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80.0 GPa | 11600 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 18% | 18% |
| Hardness, Brinell (@ thickness 9.50 mm/0.374 in, for plates) | 235 - 293 | 235 - 293 |
| Hardness, Knoop (converted from Brinell hardness) | 289 | 289 |
| Hardness, Rockwell B (converted from Brinell hardness) | 98 | 98 |
| Hardness, Rockwell C (converted from Brinell hardness) | 26 | 26 |
| Hardness, Vickers (converted from Brinell hardness) | 278 | 278 |
Other designations that are equivalent to AISI A514 grade A/B/C alloy steel include:
GB/T Q215
JIS G3101 SS330
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