316
Data verified316 adds 2–3% molybdenum to the 18-10 base of 304, which markedly improves pitting and crevice corrosion resistance in chloride media. It is the standard marine and chemical-process stainless.
Chemical composition
| Element | Content (%) |
|---|---|
| C | ≤0.08 |
| Si | ≤0.75 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Cr | 16.00–18.00 |
| Ni | 10.00–14.00 |
| Mo | 2.00–3.00 |
| N | ≤0.10 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Delivery condition | Annealed |
| Hardness | ≤217 HB (annealed) |
| Tensile strength | 515–690 MPa |
| Yield strength | ≥205 MPa |
| Density | 7.90 g/cm³ |
Heat treatment
Solution anneal 1010–1120 °C, rapid cool.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.4401 |
| aisi | 316 |
| jis | SUS316 |
| gb | 06Cr17Ni12Mo2 |
Compare side by side: 316 vs 316L · 316 vs 316H · 316 vs 316Ti
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Marine hardware, chemical and pharmaceutical plant, desalination, pulp and paper, coastal architecture.
Processing: Forms and welds like 304, with slightly higher forces; welded heavy sections should use 316L to avoid sensitisation.
FAQ
- Why is 316 better than 304 in seawater?
- Molybdenum stabilises the passive film against chloride attack, raising the pitting resistance equivalent (PREN) from about 18 for 304 to about 24 for 316.
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Ask for a quotationVisit NasteelSource: ASTM A240 / EN 10088 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.