316/316L Stainless Steel Sheet & Coil Chemical Composition

Stainless Steels Chromium-Nickel-Molybdenum

Types 316 (S31600), 316L (S31603), 317 (S31700), 317L (S31703)

 

316/316L Stainless Steel Chemical Composition

 

Represented by ASTM A240 and ASME SA-240

Element Percent by Weight
Maximum Unless Range is Specified
316 316L 317 317L
Carbon 0.08 0.030 0.08 0.030
Manganese 2.00 2.00 2.00 2.00
Silicon 0.75 0.75 0.75 0.75
Chromium 16.00
18.00
16.00
18.00
18.00
20.00
18.00
20.00
Nickel 10.00
14.00
10.00
14.00
11.00
15.00
11.00
15.00
Molybdenum 2.00
3.00
2.00
3.00
3.00
4.00
3.00
4.00
Phosphorus 0.045 0.045 0.045 0.045
Sulfur 0.030 0.030 0.030 0.030
Nitrogen 0.10 0.10 0.10 0.10
Iron Bal. Bal. Bal. Bal.

Resistance to Corrosion

Types 316, 316L, 317 and 317L are more resistant to atmospheric and other mild types of corrosion than Types 302, 304 and 304L. In general, media that do not corrode Types 302, 304 and 304L, will not attack these molybdenumcontaining grades. One known exception is highly oxidizing acids such as nitric acid to which the molybdenum-bearing stainless steels are less resistant.