SS 316 adds 2–3% molybdenum to the 304 composition, delivering dramatically superior resistance to chloride-induced pitting and crevice corrosion. The preferred grade for marine, offshore, pharmaceuti...
SS 316 adds 2–3% molybdenum to the 304 composition, delivering dramatically superior resistance to chloride-induced pitting and crevice corrosion. The preferred grade for marine, offshore, pharmaceutical, and chemical applications where chloride exposure is a concern. 316L (low carbon) is specified for welded assemblies.
| Property | Value |
|---|---|
| Grade | SS 316 / 316L |
| ASTM / ASME | ASTM A403 WP316 / WP316L |
| UNS Number | S31600 / S31603 |
| Chromium (Cr) | 16–18% |
| Nickel (Ni) | 10–14% |
| Molybdenum (Mo) | 2.0–3.0% |
| Max/Min Service Temp | 870°C |
| Fitting Standard | ASME B16.9 / MSS SP-43 |
| Size Range | ½" NB to 48" NB |
| Certificate | EN 10204 3.1 MTC |
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