316 / X5CrNiMo17-12-2 vs X17CrNi16-2: 38% composition overlap. Significantly different materials serving different application areas.
316 / X5CrNiMo17-12-2 vs X17CrNi16-2
Side-by-side chemical composition and mechanical property comparison.
Overview
316 / X5CrNiMo17-12-2
1.4401
Standard-carbon austenitic stainless steel with molybdenum. Higher C than 316L (max 0.07% vs 0.03%) giving slightly higher strength. Same corrosion resistance as 316L. Used where welding is not required or post-weld solution annealing is possible.
X17CrNi16-2
1.4057
Martensitic CrNi stainless — AISI 431. Best corrosion resistance of ALL martensitic stainless steels due to high Cr (15-17%) + Ni (1.5-2.5%). Hardenable to HRC 46-50. Used for shafts, bolts, valve stems, pump components, fasteners in marine/offshore environments. Also aerospace (WL4044) and medical instruments. Service to 400°C.
| 316 / X5CrNiMo17-12-2 | X17CrNi16-2 | |
|---|---|---|
| Material Number | 1.4401 | 1.4057 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-3 |
Chemical composition (wt%)
| Element | 316 / X5CrNiMo17-12-2 | X17CrNi16-2 | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0.12–0.22% | No overlap |
| Si | 0–1% | 0–1% | OK |
| Mn | 0–2% | 0–1.5% | OK |
| P | 0–0.045% | — | — |
Mechanical properties
| Property | 316 / X5CrNiMo17-12-2 | X17CrNi16-2 | Unit |
|---|---|---|---|
| tensile_strength | 530–680 | 800–950 | MPa |
| yield_strength | ≥ 220 | ≥ 600 | MPa |
| elongation | ≥ 40 | ≥ 14 | % |
Compatibility Assessment
316 / X5CrNiMo17-12-2 and X17CrNi16-2 have significantly different compositions (38% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 316 / X5CrNiMo17-12-2 the same as X17CrNi16-2?
316 / X5CrNiMo17-12-2 and X17CrNi16-2 have a 38% composition overlap. They are generally not directly interchangeable.
Can I replace 316 / X5CrNiMo17-12-2 with X17CrNi16-2?
Generally not recommended. The compositions differ significantly (38% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 316 / X5CrNiMo17-12-2 and X17CrNi16-2?
The main differences are in the following elements: C, Cr, Ni. 316 / X5CrNiMo17-12-2 is a Stainless Steel grade, while X17CrNi16-2 is a Stainless Steel grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.