304L vs X2CrNiMo17-12-2: 79% composition overlap. Some similarities but notable differences in alloying elements.
304L vs X2CrNiMo17-12-2
Side-by-side chemical composition and mechanical property comparison.
Overview
304L
1.4307
Low-carbon version of 304. Maximum 0.030% C prevents sensitization during welding — no post-weld heat treatment needed. The standard choice for welded structures in food, chemical, and pharmaceutical industries. Often dual-certified with 1.4301.
X2CrNiMo17-12-2
1.4404
Low-carbon molybdenum-bearing austenitic stainless steel, widely known as AISI 316L. The Mo addition (2–2.5%) significantly improves resistance to pitting and crevice corrosion compared to 1.4301 (304). Low carbon content (max 0.03%) ensures resistance to intergranular corrosion after welding without post-weld heat treatment. Standard grade for pharmaceutical, petrochemical, chemical and marine applications. PREN 23–29.
| 304L | X2CrNiMo17-12-2 | |
|---|---|---|
| Material Number | 1.4307 | 1.4404 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-3 |
Chemical composition (wt%)
| Element | 304L | X2CrNiMo17-12-2 | Overlap |
|---|---|---|---|
| C | 0–0.03% | ≤ 0.03% | OK |
| Si | 0–1% | ≤ 1% | OK |
| Mn | 0–2% | ≤ 2% | OK |
| P | 0–0.045% | ≤ 0.045% | OK |
Mechanical properties
| Property | 304L | X2CrNiMo17-12-2 | Unit |
|---|---|---|---|
| tensile_strength | 500–700 | — | MPa |
| yield_strength | ≥ 200 | — | MPa |
| elongation | ≥ 45 | — | % |
Compatibility Assessment
304L and X2CrNiMo17-12-2 share some characteristics (79% 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 304L the same as X2CrNiMo17-12-2?
304L and X2CrNiMo17-12-2 have a 79% composition overlap. For most purposes, they can be considered similar.
Can I replace 304L with X2CrNiMo17-12-2?
In many cases, yes. The compositions overlap significantly (79%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between 304L and X2CrNiMo17-12-2?
The main differences are in the following elements: Cr, Ni. 304L is a Stainless Steel grade, while X2CrNiMo17-12-2 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.