| Category | Material | Type | Hardening Temp (°C) | Cooling | HRC |
|---|---|---|---|---|---|
| Spring Steel | WPS | Water Hardened Spring Steel | 780–830°C | Water/Oil | 45–55 |
| Spring Steel | EN45 | Si-Mn Spring Steel | 820–860°C | Oil | 45–52 |
| Spring Steel | EN47 | Cr Spring Steel | 830–870°C | Oil | 48–55 |
| Tool Steel | D2 | High Carbon High Chromium | 980–1040°C | Air/Vacuum | 58–62 |
| Tool Steel | H13 | Hot Work Tool Steel | 1000–1050°C | Air | 48–52 |
| Tool Steel | OHNS | Oil Hardened | 780–820°C | Oil | 58–62 |
| Tool Steel | A2 | Air Hardening Tool Steel | 950–980°C | Air | 57–62 |
| Alloy Steel | EN19 | Cr-Mo Steel | 820–860°C | Oil | 50–55 |
| Alloy Steel | EN24 | Ni-Cr-Mo Steel | 830–870°C | Oil | 55–60 |
| Alloy Steel | EN36 | Case Hardening Steel | 820–850°C | Oil | 58–62 |
| Bearing Steel | EN31 | High Carbon Chromium | 800–840°C | Oil | 60–65 |
| Bearing Steel | 52100 | Chrome Steel | 830–870°C | Oil | 60–66 |
| Stainless | 410 | Martensitic | 950–1050°C | Air/Oil | 40–50 |
| Stainless | 420 | Martensitic | 980–1050°C | Oil | 50–55 |
| Stainless | 304 | Austenitic | 1000–1100°C (Anneal) | Water | Not Hardened |
| Case Hardening | EN32 | Low Carbon | 880–920°C | Oil | 58–62 surface |
| Case Hardening | EN353 | Alloy | 850–900°C | Oil | 60–64 |
| Cast Iron | SG Iron | Ductile | 850–950°C | Air | 30–45 |
| Aluminum | 6061 | Al Alloy | 530°C | Water + Aging | - |
| Titanium | Ti-6Al-4V | Ti Alloy | 900–950°C | Air | - |