ALUMINUM 319.0
CATEGORY: Metal / Ingot 319.0
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: Machining characteristics are good. Carbide-tipped tools are recommended to prevent possible adverse effects of abrasiveness and inclusions.
FINISHING: Electroplated finishes are very good on these alloys. Mechanical and anodized finishes are fair.
WELDABILITY: Arc welding results in the most satisfactory welds. Resistance and gas methods are both good. Brazing is not recommended.
CORROSION RESISTANCE: This alloy exhibits good resistance to most common forms of corrosion and react well to chemical conversion coatings for additional protection.
CHEMICAL COMPOSITION LIMITS
| Component | Si | Cu | Mg | Ti | Fe | Mn | Zn | Al | Ni |
|---|---|---|---|---|---|---|---|---|---|
| Wt % | 5.5-6.5 | 3-4 | Max. 0.1 | Max 0.25 | Max. 1 | Max. 0.5 | Max. 0.1 | 90 | Max. 0.35 |
PHYSICAL PROPERTIES
| 319.0-F | VALUE | COMMENTS | 319.0-T6 | VALUES | COMMENTS |
|---|---|---|---|---|---|
| Density, lb/cu in. | 0.1 | - | Density, LB/cu in. | 0.1 | - |
| Hardness, Brinell | 85 | 500 kg load, 10 mm ball | Hardness, Brinell | 95 | 500 kg load, 10 mm ball |
MECHANICAL PROPERTIES
| 319.0-F | VALUE | COMMENTS | 319.0-T6 | VALUES | COMMENTS |
|---|---|---|---|---|---|
| Tensile Strength, Ultimate, ksi. | 34 | - | Tensile Strength, Ultimate, ksi | 40 | - |
| Tensile Strength, Yield, ksi | 19 | Set 0.2% | Tensile Strength,Yield, ksi | 27 | Set 0.2% |
| Elongation %; break | 2.5 | In 2 inches | Elongation%; break | 3 | In 2 inches |
| Shearing Strength, ksi | 24 | - | Shearing Strength, ksi | - | - |
| Compressive Yield Strength, ksi | 19 | Set 02% | Compressive Yield Strength, ksi | 27 | Set 0.2% |
THERMAL PROPERTIES
| 319.0-F | VALUE | COMMENTS | 319.0-T6 | VALUES | COMMENTS |
|---|---|---|---|---|---|
| CTE, linear 20 deg. C, um/m-deg. C | 21.4 | 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 | 22.9 | 20-300 deg. C | CTE, linear 250 deg. C, um/m-deg.Ci | 22.9 | 20-300 deg. C |
| Thermal Conductivity, W/m-K | 109 | - | Thermal Conductivity, W/Mk | 109 | - |
| Melting Point, deg. F | 960 | Solidus | Melting Point, deg. F | 960 | Solidus |
| Solidus, deg. F | 960 | - | Solidus, deg. F | 960 | - |
| Liquidus, deg. F | 1120 | - | Liquidus, deg. F | 1120 | - |
ELECTRICAL PROPERTIES
| 319.0-F | VALUE | COMMENTS | 319.0-T6 | VALUES | COMMENTS |
|---|---|---|---|---|---|
| Electrical Resistivity, Ohm-cm | 0.000064 | - | Electrical Resistivity, Ohm-cm | 0.0000064 | - |
*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