17-4PH vs X2CrNiMoN22-5-3: 49% composition overlap. Significantly different materials serving different application areas.
17-4PH vs X2CrNiMoN22-5-3
Side-by-side chemical composition and mechanical property comparison.
Overview
17-4PH
1.4542
The most widely used precipitation-hardening stainless steel. Combines high strength (up to 1310 MPa UTS) with corrosion resistance comparable to 304. Delivered solution-annealed and hardened by simple low-temperature aging. Used in aerospace, medical, oil & gas, and nuclear applications.
X2CrNiMoN22-5-3
1.4462
The most widely used duplex stainless steel worldwide (SAF 2205 / UNS S31803/S32205). Austenitic-ferritic microstructure provides ~2× yield strength of 304/316 (≥450 MPa) with excellent resistance to stress corrosion cracking, pitting (PREN 33-38), and intergranular corrosion. Service temperature -50°C to 300°C. Used for oil & gas production tubing, chemical processing vessels, desalination plants, pulp & paper digesters, heat exchangers, and bridge structures. Weldable with ER2209 filler.
| 17-4PH | X2CrNiMoN22-5-3 | |
|---|---|---|
| Material Number | 1.4542 | 1.4462 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-3 | EN 10088-2 |
Chemical composition (wt%)
| Element | 17-4PH | X2CrNiMoN22-5-3 | Overlap |
|---|---|---|---|
| C | 0–0.07% | ≤ 0.03% | OK |
| Si | 0–0.7% | ≤ 1% | OK |
| Mn | 0–1.5% | ≤ 2% | OK |
| P | 0–0.04% | ≤ 0.035% | OK |
Mechanical properties
| Property | 17-4PH | X2CrNiMoN22-5-3 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 1310 | 650–880 | MPa |
| yield_strength | ≥ 1170 | ≥ 450 | MPa |
| elongation | ≥ 10 | ≥ 25 | % |
Compatibility Assessment
17-4PH and X2CrNiMoN22-5-3 have significantly different compositions (49% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 17-4PH the same as X2CrNiMoN22-5-3?
17-4PH and X2CrNiMoN22-5-3 have a 49% composition overlap. They are generally not directly interchangeable.
Can I replace 17-4PH with X2CrNiMoN22-5-3?
Generally not recommended. The compositions differ significantly (49% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 17-4PH and X2CrNiMoN22-5-3?
The main differences are in the following elements: Cr, Ni. 17-4PH is a Stainless Steel grade, while X2CrNiMoN22-5-3 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.
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