Technical Information: Precision Airset Sand Castings

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Available Alloys

Alloy Heat Treating Ultimate Tensile Strength
KSI
Min. Yield Strength Set @ 2% KSI Elongation % Hardness Rockwell E Scale 1/16 Ball Pressure Tightness Machinability

Aluminum Alloys

319.0 T6 36 24 2.0 85.5 B A
355.0 T51 28 23 1.5 76.0 A C
355.0 T6 35 25 3.0 85.5 A B
C355.0 T6 39 29 5.0 89.0 A B
356.0 T51 25 20 2.0 71.0 A C
356.0 T6 33 24 3.5 79.0 A A
A356.0 T51 26 18 3.0 71.0 A C
A356.0 T6 40 30 6.0 82.5 A A
357.0 T51 26 17 3.0 80.0 B C
357.0 T6 45 35 3.0 91.0 B B
A357.0 T6 45 35 3.0 89.0 B B
380.0 None 46 23 3.5 85.5 B C
712.0 * 35* 25* 5.0* 82.5 C A
712.0 is also known as D712, D612, and 40E

Zinc Alloys

ZA3 None 41 - - 10.0 87.0 C C
ZA8 None 34 30 1.5 95.5 C C
ZA12 None 43 30 2.0 93.0 C B
ZA27 None 61 46 9.5 100.0 C B
These values are for separately cast test bars and are typical values.

* Test 30 days after casting
A = Excellent     B = Good     C = Fair

Applicable Military Specifications

  • Mechanical/chemical inspection to MIL-A-21180QQ-A-601, AMS-4217
  • System control to MIL-45208
  • Gage control to MIL-STD-45662
  • Penetrant inspection to MIL-STD-6866
  • Radiographic inspection to MIL-STD-453, MIL-STD-2175
  • Heat treat to MIL-H-6088
  • N.D.T. to MIL-STD-410

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