416 Stainless Steel Plate - ASTM A895 - UNS S41600
Type 416 stainless is a martensitic, free machining stainless steel. It is treated with hot working, which gives it elevated strength and hardness. 416 stainless has the highest machinability of any stainless steel. One of the first free-machining stainless steels ever developed, 416 offers considerable flexibility in machining applications. The addition of manganese-rich sulfides evenly distributed throughout the steel provides a natural lubricant, preventing buildup on cutting tools during the machining process. The additives also act as chip breakers, substantially increasing machining rates to 85%. Free machining steel like 416 allows for faster speeds and feeds and an overall increase in cutting tool life.
416 Inventory Size Ranges
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One of the most common alloys to undergo heat treating, 416 SS is capable of attaining the highest strength, hardness and wear resistance of all stainless alloys. It also has excellent machinability and non-galling characteristics. 416 stainless steel is often used in parts that require extensive machining and corrosion resistance. Heat treating 416 makes it an ideal selection for cutting tools. We are suppliers of 416 stainless steel plate in 0.1875" to 4.000" thickness.
Standard Inventory Specifications
- UNS S41600
- ASTM A 895
- ASTM A 582 (Chem-only)
Common Applications of 416
- Screw machine parts
- Fasteners & fittings
- Gears
- Valves
- Pumps
About Heat Treating 416
The crystalline structure of stainless steel can be altered when the material is brought to an extremely high temperature, then cooled at a specific rate. AISI 416 is one of the most common alloys to undergo this process to permanently alter its physical condition. The benefit of heat treating stainless grades of 410 or above is the ultimate increase in the material hardness. Cutting tools, for example, made from material that has been heat treated, are strong enough to resist breaking or warping during use. To harden 416, the metal must be heated to a minimum of 1400°F followed by quenching and cooling. Tempering is often a final step to reduce brittleness.
Chemical Composition
| Element | Percent by Weight | |
|---|---|---|
| Ni | Nickel | 8.0 min - 10.5 max |
| Cr | Chromium | 12.0 min - 14.0 max |
| Mn | Manganese | 1.25 max |
| Si | Silicon | 1.0 max |
| C | Carbon | 0.15 max |
| S | Sulfur | 0.15 min |
| P | Phosphorus | 0.06 max |
| Mo | Molybendum | 0.6 max |
| Fe | Iron | Balance |
Physical Propoerties of 416 Stainless Steel
|
Property |
Value |
|---|---|
|
Density lb/in |
7750 |
|
Thermal Conductivity at 100°C |
24.9 |
|
Thermal Conductivity at 500°C |
28.7 |
|
Electrical Resistivity |
570 |
Mechanical Propoerties of 416 Stainless Steel
|
Property |
Value |
|---|---|
|
Yield Strength, psi |
39,900 |
|
Ultimate Tensile Strength, psi |
74,700 |
|
Elongation |
30% |
|
Hardness |
B82 |
*The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.