316L vs X5CrNiMo17-12-2: 71% composition overlap. Some similarities but notable differences in alloying elements.
316L vs X5CrNiMo17-12-2
Side-by-side chemical composition and mechanical property comparison.
Overview
316L
1.4404
Low-carbon austenitic stainless steel with molybdenum addition. Superior corrosion resistance to 304, especially against chlorides and pitting. Standard choice for chemical processing, marine, medical implants, and pharmaceutical equipment.
X5CrNiMo17-12-2
1.4401
Standard molybdenum-bearing austenitic stainless steel, known as AISI 316. Similar to 1.4404 (316L) but with higher carbon content (max 0.07%) providing slightly better high-temperature strength. Not resistant to intergranular corrosion after welding — for welded constructions prefer 1.4404 (316L). Used in chemical processing, marine environments, and applications requiring improved pitting resistance over 1.4301 (304).
| 316L | X5CrNiMo17-12-2 | |
|---|---|---|
| Material Number | 1.4404 | 1.4401 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-3 |
Chemical composition (wt%)
| Element | 316L | X5CrNiMo17-12-2 | Overlap |
|---|---|---|---|
| C | 0–0.03% | ≤ 0.07% | OK |
| Si | 0–1% | ≤ 1% | OK |
| Mn | 0–2% | ≤ 2% | OK |
| P | 0–0.045% | — | — |
Mechanical properties
| Property | 316L | X5CrNiMo17-12-2 | Unit |
|---|---|---|---|
| tensile_strength | 520–680 | — | MPa |
| yield_strength | ≥ 220 | — | MPa |
| elongation | ≥ 40 | — | % |
Compatibility Assessment
316L and X5CrNiMo17-12-2 share some characteristics (71% overlap) but have notable differences. They may be substitutable in some applications but not all. Verify suitability carefully.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 316L the same as X5CrNiMo17-12-2?
316L and X5CrNiMo17-12-2 have a 71% composition overlap. For most purposes, they can be considered similar.
Can I replace 316L with X5CrNiMo17-12-2?
In many cases, yes. The compositions overlap significantly (71%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between 316L and X5CrNiMo17-12-2?
The main differences are in the following elements: overall alloying content. 316L is a Stainless Steel grade, while X5CrNiMo17-12-2 is a Stainless Steel grade.
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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.