Corrosion Resistance: 416 stainless steel is known for its excellent corrosion resistance in mildly corrosive environments, including acidic and alkaline environments. It is resistant to corrosion from chemicals, solvents, and salts.
Machinability: 416 stainless steel is known for its excellent machinability due to the presence of sulfur, which acts as a lubricant during machining. It can be easily machined using automatic screw machines, lathes, and milling machines.
Weldability: 416 stainless steel is known for its poor weldability, due to its high sulfur content, which can cause cracking during welding. It is not recommended for welding, brazing, or soldering.
Ductility: 416 stainless steel has fair ductility, which means that it can be formed and shaped but is not as malleable as other stainless steel grades.
Magnetic Properties: 416 stainless steel is magnetic in all conditions.
Heat Resistance: 416 stainless steel has good heat resistance up to 760°C (1400°F). It can be used in high-temperature applications such as furnace parts and valves.
| C | Mn | Si | P | S | Cr | |
|---|---|---|---|---|---|---|
| 416 | 0.15 max | 1.25 max | 1.00 max | 0.06 max | 0.15 max | min: 12.0 max: 14.0 |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Brinell (HB) | Impact Charpy V (J) |
|---|---|---|---|---|---|
| Annealed * | 517 | 276 | 30 | 262 | – |
| Condition T ** | 758 | 586 | 18 | 248-302 | – |
| 204 | 1340 | 1050 | 11 | 388 | 20 |
| 316 | 1350 | 1060 | 12 | 388 | 22 |
| 427 | 1405 | 1110 | 11 | 401 | # |
| 538 | 1000 | 795 | 13 | 321 | # |
| 593 | 840 | 705 | 19 | 248 | 27 |
| 650 | 750 | 575 | 20 | 223 | 38 |
| * Annealed properties are typical for Condition A of ASTM A582. | |||||
| ** Hardened and tempered Condition T of ASTM A582 – Brinell Hardness is specified range, other properties are typical only. | |||||
| # Due to associated low impact resistance this steel should not be tempered in the range 400- | |||||
| Density kg/m3 | Thermal Conductivity W/mK | Electrical Resistivity (Microhm/cm) | Modulus of Elasticity | Coefficient of Thermal Expansion µm/m/°C | Specific Heat (J/kg.K) | Specific Gravity |
|---|---|---|---|---|---|---|
| 7750 | 24.9 at 212°F | 43 at 68°F | 200 GPa | 9.9 at 32 – 212°F | 460 at 32°F to 212°F | 7.7 |
| 28.7 at 932 °F | 11.0 at 32 – 599°F | |||||
| 11.6 at 32-1000°F |
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