ALUMINUM a356.0
CATEGORY: Metal / Ingot A356.2
F: As Cast.
T6 - Solution Heat Treat, Quench and Artificially Age: heat treatment such as this usually results in maximum tensile strength with adequate elongation. These properties are stabilized though aging.
MACHINABILITY: Alloy A356.0 has good machinability. by using sharp, carbide-tipped (or better) tools with high raked and clearances abrasiveness can be overcome and high tool wear can be minimized. Moderate to fast speeds are recommended.
FINISHING: Electroplated finishes are very good. Chemical conversion coatings give very good protection, but anodized appearance is only fair. Mechanical finishes on A356.0 are good.
WELDABILITY: All common welding method are excellent for joining this alloy. Brazing is not performed.
CORROSION RESISTANCE: This alloy has very good resistance to most common forms of corrosion.
CHEMICAL COMPOSITION LIMITS
| Component | Si | Cu | Mg | Ti | Fe | Mn | Zn | Al |
|---|---|---|---|---|---|---|---|---|
| Wt % | 6.5-7.5 | Max. 0.2 | 0.25-0.45 | Max 0.2 | Max. 0.2 | Max. 0.1 | Max. 0.1 | 93 |
PHYSICAL PROPERTIES
| A356.0-F | VALUE | COMMENTS | A356.0-T6 | VALUES | COMMENTS |
|---|---|---|---|---|---|
| Density, lb/cu in. | 0.1 | - | Density, lb/cu in. | 0.1 | - |
| Hardness, Brinell | - | 500 kg load, 10 mm ball | Hardness, Brinell | 80 | 500 kg load, 10 mm ball |
MECHANICAL PROPERTIES
| A356.0-F | VALUE | COMMENTS | A356.0-T6 | VALUES | COMMENTS |
|---|---|---|---|---|---|
| Tensile Strength, Ultimate, ksi. | 27 | - | Tensile Strength, Ultimate, ksi | 41 | - |
| Tensile Strength, Yield, ksi | 13 | Set 0.2% | Tensile Strength,Yield, ksi | 30 | Set 0.2% |
| Elongation %; break | 8 | In 2 inches | Elongation%; break | 12 | In 2 inches |
| Shearing Strength, ksi | - | - | Shearing Strength, ksi | - | - |
| Compressive Yield Strength, ksi | - | Set 02% | Compressive Yield Strength | - | Set 0.2% |
THERMAL PROPERTIES
| A356.0-F | VALUE | COMMENTS | A356.0-T6 | VALUES | COMMENTS |
|---|---|---|---|---|---|
| CTE, linear 20 deg. C, um/m-deg. C | - | 20-100 deg. C | CTE, linear 20 deg. C, um/m-deg.Ci | 21.4 | 20-100 deg. C |
| CTE, linear 250 deg. C, um/m-deg. C | - | 20-300 deg. C | CTE, linear 250 deg. C, um/m-deg.Ci | 23.2 | 20-300 deg. C |
| Thermal Conductivity, W/m-K | - | - | Thermal Conductivity, W/Mk | 151 | - |
| Melting Point, deg. F | 1035 | Solidus | Melting Point, deg. F | 1035 | Solidus |
| Solidus, deg. F | 1035 | - | Solidus, deg. F | 1035 | - |
| Liquidus, deg. F | 1135 | - | Liquidus, deg. F | 1135 | - |
ELECTRICAL PROPERTIES
| A356.0-F | VALUE | COMMENTS | A356.0-T6 | VALUES | COMMENTS |
| Electrical Resistivity, Ohm-cm | - | - | Electrical Resistivity, Ohm-cm | 0.0000044 | - |
*REFERENCES:
1. The American Foundryman's Society, Inc.; "Aluminum Casting
Technology", pp 50-77.
2. Metals Handbook Vol. 2 - Properties and Selection: Nonferrous
Alloys and Special-Purpose Materials, ASM International 10th Ed.
1990.
3. ASM Metals Reference Book, Third edition, Michael Bauccio, Ed.
ASM International, Materials Park, OH, 1993.