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Casting Alloys

At Precise Cast we manufacture metal castings from aluminum, magnesium, and zinc alloys. The table below is a summary of the metals we cast. See the tables on our Casting  Metals Alloys page for more information on these casting alloys. The alloys that are highlighted are the preferred metal casting alloys for the sand casting and plaster casting processes.

The other alloys can only be used after reviewing the part geometry and performing FEA analysis of the casting process. Some alloys might not be well suited for use in our metal casting processes.


 

Alloy

Temper

Tensile (psi)

Yield (psi)

% Elongation in 2″

Density (lb/in 3 )

Thermal Conductivity
BTU-in/hr-ft²-°F

Melting Point (°F)

Aluminum 319 (Sand)

T6

31,000

20,000

1.5

0.1010

756

961-1120

Aluminum 355 (Sand)

T6

32,000

20,000

2

0.0979

986

1015-1150

Aluminum A356 (Sand)

T6

34,000

24,000

3.5

0.0965

1050

1030-1140

Aluminum A357 (Perm)*

T61

45,000

36,000

3

0.0965

1040

1035-1135

Aluminum A380 (Die)*

F

47,000

23,100

3.5

0.0997

756

1000-1100

Magnesium AZ91D (Cast)

F

33,400

21,800

3

0.0654

505

790

Magnesium AM60B (Die)*

F

35,000

19,000

13

0.0650

423

815

Zinc ZA8 (Die)*

54,200

34,800

8

0.2280

798

707-759

Zinc ZA-12 (Sand)

39,900

29,700

2

0.2180

805

711-810

Zinc ZA-27 (Sand)

60,900

52,900

4.5

0.1810

868

709-903

Alloy

Temper

Tensile (MPa)

Yield (MPa)

% Elongation in 50mm

Density (g/cc)

Thermal Conductivity (W/m-K)

Melting Point (°C)

Aluminum 319 (Sand)

T6

214

138

1.5

2.79

109

216-604

Aluminum 355 (Sand)

T6

221

138

2

2.71

142

546-621

Aluminum A356 (Sand)

T6

234

165

3.5

2.67

151

557-613

Aluminum A356 (Sand)

T61

310

248

3

2.67

151

557-613

Aluminum A357 (Perm)*

F

324

159

3.5

2.76

150

538-593

Magnesium AZ91D (Cast)

F

230

150

3

1.81

73

421

Magnesium AM60B (Die)*

F

241

131

13

1.80

61

435

Zinc ZA8 (Die)*

374

240

8

6.3

115

375-404

Zinc ZA-12 (Sand)

275

205

2

6.04

116

377-432

Zinc ZA-27 (Sand)

420

365

4.5

5.02

125

376-484