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Alloys

The Metals in the charts below can be used in both sand and investment castings.

COMMONLY CAST FERROUS ALLOYS
  Alloy Type Specification Cond. PSI x 1000 Tensile Yeild % EL. In 1" Comments
Carbon and Low Alloy Steels 1020 MIL-S-22131
ASTM-A-27
MIL-S-15083
MIL-S-22146
MIL-S-81591
QQ-S-681
Anneal 60 40 35 Carburizing and case hardening grade
  4130 MIL-S-22141
AMS 5336
ASTM-A-148
MIL-S-15803
QQ-S-681
Quench and temper 150 115 7 Deep hardening, high strength, wear and fatigue resistance for structural applications where welding may be required.
  8620 MIL-S-22141
ASTM-A-27
QQ-S-681
Norm. and temper 105 85 10 Carburizing grade
Austenitic Stainless Steel 302 AMS-5358
ASTM-A-296
MIL-S-81591
Sol. Treat.       Good corosion and oxidation resistance to approximately 1600° F
  303 AMS 5341
ASTM-A-296
MIL-S-81591
Sol. Treat.       Free Matching grade
  304
304L
AMS-5370
ASTM-A-296
ASTM_A-351
MIL-S-81591
Sol. Treat.       Excellent corrosion and oxidation resistance to 1600° F.
  316 AMS 5360
ASTM-A-296
ASTM-A-351
MIL-S-81591
Sol. Treat.       Good corrosion resistance and moderate strength for intermediate temperature application.
  347 AMS 5362
ASTM-A-296
ASTM-A-351
MIL-S-81591
Sol. Treat. 70 30 30 For applications involving welding, good corrosion and oxidation resistance to 1700° F., CB to mini size C, Precipitation at Grain Boundaries
Precip. Hardening Stainless Steel 17-4PH AMS 5355
AMS 5342
AMS 5343
AMS 5344
ASTM, A747C,
B7CU
Sol. Treat./aged @ 900 to 1100 180 150 6 Excellent strength with good ductility, corrosion and oxidation resistance to approximately 900° F.
  15-5 AMS 5346
ASTM A747CB,
7CU-2
Sol. Treat./ Aged @ 925°F 180 160 6 Resistance to stress corrosion superior to 17-4 PH.
Martensitic Stainless Steel 410 AMS 5350
ASTM-A-296
ASTM-A-351
MIL-S-16993
MIL-S-81591
Hard. and temper 95 75 8 Wide range of properties can be obtained through heat treatments - moderate corrosion and oxidation resistance to approximately 1200° F.
  416 AMS 5349
MIL-S-81591
Hard. and temper 95 65 8 Free machining version of 410.
  Greek Ascoloy AMS 5354 Hard. and temper 145 115 10 Temperatures up to 1000° F with better strength and resistance to tempering of a higher temperature 410
  440C AMS 5352
MIL-S-81591
Annealed       Can be hardened to approximately RC 55/60 highest of any corrosion resistant steell.
Nickel Base Alloys HAST B AMS 5396 As cast 70 40 4 Superior oxidation resistance to approximately 2200° F.
HAST X AMS 5390 As cast 70 45 12
  HAST C AMS 5388 As cast 72 46 6
  INCONEL ASTM A7473
ASTM A744
As cast 75 40 25 Good strength and toughness from cryogenic temperatures to 2000° F. Also excellent weldability.

COMMONLY CAST NON-FERROUS ALLOY
Aluminum A356 QQ-A-601
AMS-4260-4218
MIL-A-21180
QQ-A-596
T51
T6
T7
As cast
25
38
34
80
20
28
24
30
2
5
4
15
Most widely cast alloy. Good strength and corrosion resistance. Replaces alloy 356.
Copper Base BeCu-20 AMS-4890
MIL-C-19464
MIL-C-22087
Comp ID
As cast
Aged
Sol
Annealed and aged
90

150
50

120
15

1
Usable in all conditions. Excellent casting alloy.
  Si. Bronze QQ-C-593-1
MIL-C-22087 Comp 4
ASTM B291 Alloy 12A
ASTM B198 Alloy 12A
As cast 60 26 15 Good strength & ductility. High corrosion resistance. Castability excellent.
  Sn. Bronze QQ-L-225-5 & 6
MIL-C-22087 Comp 3
QQ-B-691-5, 6 & 6X
ASTM-B143-1B & 27
SAE-620
QQ-C-390-3 & 5
As cast 40 15 20 Good corrosion resistance. Resistant to wear. Machinability good. Castability good.
  R. Brass
LR. Brass
QQ-B-691-CL-2
QQ-L-225-CL-2
MIL-B-16444
AMS-4855
SAE-40
MIL-C-22087 Comp 2
As cast 30 14 20 Good strength and corrosion resistance. Machinability good. Castability good.
  Mn. Bronze QQ-B-726-CL-A
AMS-4860
SAE-43
MIL-C-22087 Comp 9
As cast 65 25 20 Good strength and corrosion resistance. Castability good.