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. | |

