416
Type 416 is a free-machining stainless steel with a high chromium content, known for its martensitic structure. It can be subjected to heat treatment to achieve increased strength and hardness. Applications for Type 416 include parts that
require extensive machinings, such as golf club heads, axles, gears, pinions, lead screws, and valve trim. However, it is not advisable to use Type 416 in vessels that handle high-pressure gases or liquids.
Chemical Composition Limits
| Weight% | C | P | Si | Mn | S | Cr | Fe | Se |
| Alloy 416 Type 1 | 0.15 max | 0.060 max | 1 max | 1.25 max | 0.40 max | 11.50-13.50 | bal | 0.18-0.35 |
| Alloy 416 Type 2 | 0.15 max | 0.060 max | 1 max | 2.50 max | 0.40 max | 11.50-13.50 | bal | – |
Mechanical Properties
| Material | Tempering Temp °F (°C) | 0.2 % Yield Strength (Mpa) | Tensile Strength (Mpa) | % Elongation in 2″ | % Reduction of Area | Hardness Brinell |
| Alloy 416 1″ round bar, hardened 1800 °F (982°C) oil quench, tempered one hour | 300 (149) | 1034 | 1344 | 10 | 40 | 390 |
| Alloy 416 1″ round bar, hardened 1800 °F (982°C) oil quench, tempered one hour | 500 (260) | 979 | 1276 | 13 | 45 | 375 |
| Alloy 416 1″ round bar, hardened 1800 °F (982°C) oil quench, tempered one hour | 700 (371) | 1007 | 1310 | 13 | 48 | 390 |
| Alloy 416 1″ round bar, hardened 1800 °F (982°C) oil quench, tempered one hour | 900 (482) | 896 | 1158 | 14 | 50 | 341 |
| Alloy 416 1″ round bar, hardened 1800 °F (982°C) oil quench, tempered one hour | 1000 (538) | 793 | 1000 | 15 | 50 | 300 |
| Alloy 416 1″ round bar, hardened 1800 °F (982°C) oil quench, tempered one hours | 1100 (593) | 689 | 862 | 17 | 53 | 262 |
| Alloy 416 1″ round bar, hardened 1800 °F (982°C) oil quench, tempered one hours | 1200 (650) | 586 | 758 | 18 | 55 | 225 |
Specifications
| UNS S41600 | Type 416 Ann Bar (Flat, Hex, Round, Square) |
| AMS 5610 T-2 Bar (free machining) | ASTM A 484 / ASME SA484 |
| ASTM A 582 /ASME SA582 | MIL W 52263 |
| QQ S 763C | QQ S 764 |
| AISI 416 | Type 416 HT Bar (Round, Hex) |
| ASTM A 484 / ASME SA484 | ASTM A 582 Cond T /ASME SA582 |
| EMS 537 | MIL W 52263 |
| QQ S 763C Cond H | QQ S 764 Cond T |
| BS 970; 416S29 / 416S37 / 416S41 | BS 970; 416S21 |
| EN56AM/ EN56BM / EN56CM | WS 1.4005 |
| AFNOR Z12CF13 | – |