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 
Copper58
Nickel39.5
Iron1
Aluminum1
Typical Properties 
Weight, lbs./in0.301
Pattern maker’s shrink rule,in/ft 1/4
Tensile strength,ksi71
Yield strength,ksi28
Elongation,% in 2″30
Brinell hardness(3000)Kg)100
Machinability26
Heat Treatment (1hr/1n thickness)No Response