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316 / 316L
Product Information
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316/316L is the most commonly used austenitic stainless steel in the chemical process industry. The addition of molybdenum increases general corrosion resistance, improves chloride pitting resistance and strengthens the alloy in high temperature service. Through the controlled addition of nitrogen it is common for 316/316L to meet the mechanical properties of 316 straight grade, while maintaining a low carbon content.
Common Trade Names
316 Stainless, 316L Stainless
Inventory
316 / 316L Plate, 316 / 316L Sheet, 316 / 316L Coil, 316 / 316L Round Bar, 316 / 316L Hex Bar, 316 / 316L Welding Products, 316 / 316L Pipe, 316 / 316L Flanges, 316 / 316L Concentric Reducers, 316 / 316L Tees, 316 / 316L Stub Ends
Specifications
UNS S31600, UNS S31603, Werkstoff 1.4404, EN 1.4404
ASTM: A 240, A 276, A 312, A 479
ASME: SA-240, SA-312, SA-479
Chemical Composition, %
| Ni | Cr | Mo | Mn | Si | C | S | P | N | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|
| MIN | 10.0 | 16.0 | 2.0 | - | - | - | - | - | - | - |
| MAX | 14.0 | 18.0 | 3.0 | 2.0 | 0.75 | 0.03 | 0.03 | 0.045 | 0.1 | Balance |
Features
- Improved general and localized corrosion to 304/304L stainless
- Good formability
- Good weldability
Applications
- Food processing
- Marine
- Pulp & paper
- Chemical process vessels
- Pharmaceutical Equipment
Physical Properties
Density: 0.285 lb/inch3
Poisson's Ration: 0.3
Electrical Resistivity: 445 Ohm-circ mil/ft
| Temperature, °F | 70 | 212 | 932 | 1832 |
| Coefficient* of Thermal Expansion, in/in°F x 10-6 | - | 9.2 | 10.1 | 10.8 |
| Thermal Conductivity Btu • ft/ft2 • hr • °F |
7.8 | - | - | - |
| Modulus of Elasticity Dynamic, psi x 106 | 29 | - | - | - |
* 70°F to indicated temperature.
Mechanical Properties
Representative Tensile Properties
| Ultimate Tensile Strength, ksi | 75 |
| 0.2% Yield Strength, ksi | 30 |
| Elongation, % | 40 |
| Hardness MAX, Brinell | 217 |
Typical Tensile and Impact Properties
| Temperature, °F | 70 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 |
| Ultimate Tensile Strength, ksi | 82.4 | 75.6 | 71.1 | 71.1 | 71.1 | 68.4 | 50.7 | 30.7 |
| 0.2 % Yield Strength, ksi | 42.4 | - | - | - | 26.5 | 23.4 | 22.6 | - |
| Charpy Impact V-notch, ft-lbs | 65 - 100 | - | - | - | - | - | - | - |
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