Endothermic Department
The Endothermic Department has a total of twenty-two furnaces for hardening, carburizing, tempering, normalizing, annealing and stress relieving. The size of our furnaces range from small tooling furnaces, 22" deep, by 16" wide, by 32" high, designed for a few hundred pounds to large production furnaces 72" deep, by 36" wide, by 30" high. This wide selection of capacities has helped Stack Metallurgical Services become the Northwest's premier heat treating company.
| Process | Specification | Material/Alloy | Size Limit |
|---|---|---|---|
| Stainless Steel Age | AMS 2759/3 | 15-5 PH, 17-4 PH, 17-7 PH, PH 15-7 MO, PH 13-8 MO, A-286, Custom 450, Custom 455, Maraging 250, Maraging 300 | <56" |
| BAC 5619 | 15-5 PH, 17-4 PH, PH 13-8MO, A286, Custom 455, 17-7 PH, BMS7-364 (S46500) | <56" | |
| Atmosphere Hardening Carburizing | AMS 2759/1 | 1025, 1035, 1045, 1095, 1137, 3140, 4037, 4130, 4135, 4140, 4150, 4330V, 4335V, 4340, 4640, 6150,, 8630, 8735, 8740, H11, 98BV40, D6AC, 9NI-4CO-0.20C, 9NI-4CO-0.30C | <43" |
| AMS 2759/2 | 4330V, 4330M, 4335, 4340, Hy-Tuf, 300M, 4340M, H11, 98BV40, D6AC, 52100, 9NI-4CO-0.30C, 1450, AF 1410, AerMet 100 | <43" | |
| BAC 5641 | Carburizing spec - including pre- carburizing heat treatments | <32" | |
| BAC 5617 | Heat Treatment of Alloy Steels | <43" | |
| AMS 2759/7 | Carburizing spec. | <43" | |
| Titanium | BAC 5613 | Vacuum processing | <48" |
| BAC 5613 | Processed in air | <56" | |
| Nickel/Cobalt Alloys | BAC 5616 (Sol) | N-155, L-605, Nickel Alloy B, Nickel Alloy C, Nickel Alloy 901 | <48" (.079" Thk Max) |
| BAC 5616 (Sol/Ann) | Nickel Alloy X | <48" (.187" Thk Max) | |
| BAC 5616 (Sol/Ann) | Nickel Alloy 901 | <48" (.249" Thk Max) | |
| BAC 5616 (Sol/Ann) | U500, Waspaloy, Nickel Alloy 706, Nickel Alloy X750, Nickel Ally 718, Cobalt Alloy 6B, Nickel Alloy 625 | <48" | |
| BAC 5616 (PH) | Waspaloy, Nickel Alloy 706, Nickel Alloy X750, Nickel Alloy 718, U500 | <56" |