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| Ferritic Stainless Steels |
| 3CR12 | S41003 | 0.025 | 0.5 | 11.5 | | 0.35 | | "Utility" stainless steel with useful resistance to wet abrasion, and good formability and weldability. |
| 409 | S40900 | 0.06 | 1 | 11 | | | Ti 0.4 | Resists atmospheric and automotive exhaust gas corrosion. Used extensively in auto exhaust systems. |
| 430 | S43000 | 0.03 | 0.4 | 16.5 | | | | Good combination of corrosion resistance and formability. Used for interior panelling and cold headed fasteners. |
| 430F | S43020 | 0.07 | 1 | 16.5 | | | S 0.25 | Free machining version of 430. |
| 444 | S44400 | 0.02 | 0.8 | 18 | 2 | | Ti 0.4 | Weldable chromium-molybdenum ferritic grade has excellent corrosion resistance to hot water containing minor amounts of chlorides. |
| Duplex Stainless Steels |
| 2205 | S31803 | 0.02 | 0.8 | 22 | 3 | 5 | N 0.15 | High strength and good resistance to pitting corrosion and stress corrosion cracking. |
| UR52N+ | S32520 | 0.02 | 0.8 | 25 | 3.5 | 7 | N 0.25
Cu 0.7 | Super duplex grade exhibiting exceptional resistance to hot chlorides and strong acids, and with high strength. |
| Martensitic Stainless Steels |
| 410 | S41000 | 0.1 | 0.5 | 12 | | | | Resists dry atmospheres, fresh water and other mild environments. Hardened and tempered to achieve best strength and corrosion resistance. |
| 416 | S41600 | 0.12 | 1.0 | 12 | | | | Free machining hardenable grade. Corrosion resistance not as good as for 410. |
| 420 | S42000 | 0.3 | 0.5 | 13 | | | | Higher carbon content than 410 gives higher hardness for cutlery, knife blades, dies and surgical instruments. |
| 431 | S43100 | 0.2 | 0.6 | 15 | | 2 | | High strength, excellent toughness and corrosion resistance similar to that of 304. Used for pump shafts, bolts and valve components. |
| Precipitation Hardening Stainless Steels |
| 630 | S17400 | 0.05 | 0.6 | 16 | | 4 | Cu 4
Nb 0.25 | Precipitation hardening ("aging") treatment after machining gives high strength without distortion. Corrosion resistance similar to 304. |