SS 316L is an austenitic Chromium-Nickel stainless steel with superior corrosion resistance. The low carbon content reduces susceptibility to carbide precipitation
during welding. This permits usage in severe corrosive environments such as isolator diaphragms, and metal diaphragms, for both aerospace sensors and burst discs.
The alloy can be formed from the annealed temper by stamping and deep drawing. Joining is accomplished by brazing and welding. The Molybdenum is the alloy
composition provides excellent strength up through 800° F in applications.
Available Sizes:
SS 316L is available from Hamilton Precision Metals as strip product from 0.0005” to 0.050” (0.0127 mm to 1.27 mm) in widths up to 12.0” (304.8 mm). It is also available in foil as thin as 0.000200” (0.00508 mm) in widths of 4.0” (101.6 mm) maximum. The material conforms to AMS 5507, ASTM A240, FED QQS766 and UNS S31603.
Nominal Composition
| SS 316L NOMINAL COMPOSITION |
| Chromium |
17.2%
|
| Nickel |
10.9%
|
| Molybdenum |
2.1%
|
| Manganese |
1.6%
|
| Carbon |
0.02%
|
| Iron |
Balance
|
Mechanical Properties
| SS 316L MECHANICAL PROPERTIES |
|
ANNEALED |
COLD ROLLED |
| Ultimate Tensile Strength |
90,000 PSI |
180,000 PSI |
| Yield Strength (0.2% Offset) |
42,000 PSI |
160,000 PSI |
| Elongation in 2” * |
40%
|
2%
|
| Modulus of Elasticity (Tension) |
28 X 106
PSI
|
- |
| Poisson’s Ratio |
0.25
|
- |
*The measured elongation will be less as thickness decreases to 0.002” and less.
These values may be adjusted by control of process variables – consult HPM for desired values.
Physical Properties
| SS 316L PHYSICAL PROPERTIES |
| Density |
0.29 lbs/cu.in. |
| Melting Point (Approx.) |
1370°C |
| Electrical Resistivity @ R.T. |
74 Microhm·cm |
| Thermal Expansion Coefficient (0° to 100°C) |
16.0 x 10 -6 /°C |
|
Thermal Conductivity @ 100°C
|
16.3 W/m·K
|
Magnetic Attraction
Annealed
Cold Rolled
|
None
Slight
|
| Magnetic Attraction (Annealed: H = 200 oersteds) |
1.02 Max.
|
Typical values to guide alloy selection but are not a guarantee of minimum or maximum.