301 vs X2CrNiMo17-12-2: 65% composition overlap. Moderate differences, generally not direct substitutes.
301 vs X2CrNiMo17-12-2
Side-by-side chemical composition and mechanical property comparison.
Overview
301
1.4310
Austenitic stainless steel with the highest work-hardening rate of all 300-series grades. Lower Cr and Ni (17/7 vs 18/9 for 304) makes it metastable — cold working induces martensite transformation for extreme strength (UTS >1300 MPa in full-hard temper). THE stainless spring steel. Used for stainless springs, washers, clips, structural components requiring high strength + corrosion resistance, and railway car bodies.
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.
| 301 | X2CrNiMo17-12-2 | |
|---|---|---|
| Material Number | 1.4310 | 1.4404 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-3 |
Chemical composition (wt%)
| Element | 301 | X2CrNiMo17-12-2 | Overlap |
|---|---|---|---|
| C | 0.05–0.15% | ≤ 0.03% | No overlap |
| Si | 0–2% | ≤ 1% | OK |
| Mn | 0–2% | ≤ 2% | OK |
| P | 0–0.045% | ≤ 0.045% | OK |
Mechanical properties
| Property | 301 | X2CrNiMo17-12-2 | Unit |
|---|---|---|---|
| tensile_strength | 520–720 | — | MPa |
| yield_strength | ≥ 205 | — | MPa |
| elongation | ≥ 45 | — | % |
Compatibility Assessment
301 and X2CrNiMo17-12-2 have moderate differences (65% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 301 the same as X2CrNiMo17-12-2?
301 and X2CrNiMo17-12-2 have a 65% composition overlap. They are generally not directly interchangeable.
Can I replace 301 with X2CrNiMo17-12-2?
Generally not recommended. The compositions differ significantly (65% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 301 and X2CrNiMo17-12-2?
The main differences are in the following elements: C, Ni. 301 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.
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