Alloys
We specialize in sand casting with 356, 319 and 535 (also known as AL-Mag) aluminum, and 421 yellow brass, or Manganese Bronze, melted in natural gas-fired crucibles. We flux and de-gas with argon to ensure we supply the highest-quality castings.
Material Specification for
General Purpose Casting Aluminum Alloys
|
ALLOY GRADE |
319 |
356 |
535 |
|---|---|---|---|
|
Tensile strength (1000psi) |
23.0 |
19.0 |
35.0 |
|
Yield strength |
13.0 |
--- |
18.0 |
|
Major Alloying Elements - normal % |
|||
|
silicon % |
6.0 |
7.0 |
--- |
|
copper % |
3.5 |
--- |
--- |
|
magnesium % |
--- |
0.3 |
7.0 |
|
zinc % |
--- |
--- |
--- |
|
Characteristics (1 is best) |
|||
|
corrosion resistance |
3 |
2 |
1 |
|
machinability |
3 |
3 |
1 |
|
polishing |
2 |
2 |
4 |
|
weldability |
2 |
2 |
4 |
|
cost |
1 |
2 |
4 |
Material Specification for
421 Brass (Manganese Bronze)
| Name | Low Tensile Manganese Bronze |
|---|---|
| UNS No. | C86500 |
| Ingot No. | 421 |
| Percent By weight of | |
| Copper | 58 |
| Nickel | 39.5 |
| Iron | 1 |
| Aluminum | 1 |
| Typical Properties | |
| Weight, lbs./in | 0.301 |
| Pattern maker's shrink rule,in/ft | 1/4 |
| Tensile strength,ksi | 71 |
| Yield strength,ksi | 28 |
| Elongation,% in 2" | 30 |
| Brinell hardness(3000)Kg) | 100 |
| Machinability | 26 |
| Heat Treatment (1hr/1n thickness) | No Response |