301 vs X17CrNi16-2: 34% composition overlap. Significantly different materials serving different application areas.
301 vs X17CrNi16-2
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.
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.
| 301 | X17CrNi16-2 | |
|---|---|---|
| Material Number | 1.4310 | 1.4057 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-3 |
Chemical composition (wt%)
| Element | 301 | X17CrNi16-2 | Overlap |
|---|---|---|---|
| C | 0.05–0.15% | 0.12–0.22% | Partial |
| Si | 0–2% | 0–1% | OK |
| Mn | 0–2% | 0–1.5% | OK |
| P | 0–0.045% | — | — |
Mechanical properties
| Property | 301 | X17CrNi16-2 | Unit |
|---|---|---|---|
| tensile_strength | 520–720 | 800–950 | MPa |
| yield_strength | ≥ 205 | ≥ 600 | MPa |
| elongation | ≥ 45 | ≥ 14 | % |
Compatibility Assessment
301 and X17CrNi16-2 have significantly different compositions (34% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 301 the same as X17CrNi16-2?
301 and X17CrNi16-2 have a 34% composition overlap. They are generally not directly interchangeable.
Can I replace 301 with X17CrNi16-2?
Generally not recommended. The compositions differ significantly (34% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 301 and X17CrNi16-2?
The main differences are in the following elements: C, Cr, Ni. 301 is a Stainless Steel grade, while X17CrNi16-2 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.