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| PRODUCT DATA of A357.0 |
| Material | A357.0 |
| General Information | A357.0 is a heat-treatable Al-Si-Mg alloy generally used for permanent mold and premium quality castings in which special properties are developed by careful control of casting and chilling techniques. It has excellent casting characteristics, is heat treatable, and provides high strength, together with good toughness. |
| Chemical Composition | Al-7Si-0.55Mg-0.055Be low impurities |
| EXPERIENCE IN PRACTICE |
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| Development Status | Commercial Product |
| PHYSICAL PROPERTIES |
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| Crystal Structure | Face centered cubic (fcc) |
| Magnetic Properties | Nonmagnetic |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 71.7 GPa |
| Shear Modulus | 26.9 GPa |
| MECHANICAL PROPERTIES |
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| Ultimate Tensile Strength | 262 MPa(minimum) |
| Proof Stress (0.2%) | 193 MPa(minimum) |
| Elongation | 5 %minimum) T6 temper (mmpds) |
| THERMAL PROPERTIES |
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| Thermal Conductivity | 152 W/m.K |
| Thermal Expansion Coefficient | 21.6 μstrain/°C |
| Specific Heat | 0.963 J/g.K |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| Stress Corrosion Status | Low Resistance to SCC: Table 3 |