Zinc Base Die Cast Alloy #8
Product Menu | Properties | Availability | Uses
Specifications: ASTM B669*
| Element | Al% | Zn% | Mg% | Si% | Cu% | Fe% | Pb% |
| Maximum | 8.8 | BAL | 0.03 | X | 1.3 | 0.065 | 0.005 |
| Minimum | 8.2 | 0.02 | 0.8 | -- | -- | ||
| Element | Sn% | Cd% | Ni% | Mn% | Cr% | Ti% | Sb% |
| Maximum | 0.002 | 0.005 | 0.01 | 0.01 | 0.01 | X | X |
| Minimum | -- | -- | -- | -- | -- |
*Ritchey Metals will adjust these specifications to suit the
needs of an individual customer upon request.
Properties
| Mechanical | Sand Cast | Perm Mold | Die Cast |   |
|||||
| Ultimate Tensile Strength | 38 psi x 103 (263 Mpa) |
32-37 psi x 103 (221-225 Mpa) |
54 psi x 103 (375 Mpa) |
||||||
| Yield Strength - 0.2% Offset | 29 psi x 103 (200 Mpa) |
30 psi x 103 (206 Mpa) |
42 psi x 103 (290 Mpa) |
||||||
| Elongation | 1-2% in 2" | 1-2% in 2" | 6-10% in 2" | ||||||
| Shear Strength | -- | 35 psi x 103 (241 Mpa) |
40 psi x 103 (275 Mpa) |
||||||
| Hardness: Brinell | 85 | 85-90 | 95-110 | ||||||
| Impact Strength | 15 ft-lb (20 J) | -- | 31 ft-lb (42 J) | ||||||
| (10 mm2 specimen unnotched) | |||||||||
| Fatigue Strength Rotary Bend | -- | 7.5 psi x 103 (7.5 Mpa) |
15 psi x 103 (103 Mpa) |
||||||
| 5 x 108 cycles | |||||||||
| Comprehensive Yield Strength | 29 psi x 103 (199 Mpa) |
31 psi x 103 (214 Mpa) |
37 psi x 103 (252 Mpa) |
||||||
| 0.1% Offset | |||||||||
| Modulus of Elasticity | 12.4 psi x 106 (85.5 Mpa x 103) |
12.4 psi x 106 (85.5 Mpa x 103) |
12.4 psi x 106 (85.5 Mpa x 103) |
||||||
| Physical | |||||||||
| Density | 0.227 lb/in3 (6.3 g/cm3) | ||||||||
| Melting Range | 707-759 oF (375-404 oC) | ||||||||
| Electrical Conductivity | 27.7% IACS | ||||||||
| Thermal Conductivity | 66.3 BTU/ft/hr/oF (114.7 W/m/hr/oC) |
||||||||
| Coefficient of Thermal Expansion | 12.9 microinches/in/oF (23.3 microinches/mm/oC) |
||||||||
| 68-212oF(100-200oC) | |||||||||
| Specific Heat | 0.104 BTU/lb/oF (435 J/kg/oC)) | ||||||||
| Pattern or Die Shrinkage | 0.007 | ||||||||
Availability
The following links are technical drawings of our products in pdf format. You will need Adobe Acrobat to view these files.
Bar Ingot Bundle - Self-palletizing or on wooden pallets
Margash Bundle - Self-palletizing or on wooden pallets
Small Sow
Ritchey Metals routinely works with customers to alter our products to fit specific needs.
