316 / X5CrNiMo17-12-2 vs X2CrNiMoCuN25-6-3: 40% composition overlap. Significantly different materials serving different application areas.
316 / X5CrNiMo17-12-2 vs X2CrNiMoCuN25-6-3
Side-by-side chemical composition and mechanical property comparison.
Overview
316 / X5CrNiMo17-12-2
1.4401
Standard-carbon austenitic stainless steel with molybdenum. Higher C than 316L (max 0.07% vs 0.03%) giving slightly higher strength. Same corrosion resistance as 316L. Used where welding is not required or post-weld solution annealing is possible.
X2CrNiMoCuN25-6-3
1.4507
Super duplex stainless steel — SAF 2507 / UNS S32750. PREN >40 giving outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride environments including hot seawater. 50/50 austenite-ferrite microstructure. UTS >800 MPa — roughly 2x the strength of 316L. Used for offshore oil/gas, desalination, chemical tankers, flue gas desulfurization, and subsea equipment.
| 316 / X5CrNiMo17-12-2 | X2CrNiMoCuN25-6-3 | |
|---|---|---|
| Material Number | 1.4401 | 1.4507 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-3 |
Chemical composition (wt%)
| Element | 316 / X5CrNiMo17-12-2 | X2CrNiMoCuN25-6-3 | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0–0.03% | OK |
| Si | 0–1% | 0–0.8% | OK |
| Mn | 0–2% | 0–1.2% | OK |
| P | 0–0.045% | 0–0.035% | OK |
Mechanical properties
| Property | 316 / X5CrNiMo17-12-2 | X2CrNiMoCuN25-6-3 | Unit |
|---|---|---|---|
| tensile_strength | 530–680 | ≥ 800 | MPa |
| yield_strength | ≥ 220 | ≥ 530 | MPa |
| elongation | ≥ 40 | ≥ 20 | % |
Compatibility Assessment
316 / X5CrNiMo17-12-2 and X2CrNiMoCuN25-6-3 have significantly different compositions (40% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 316 / X5CrNiMo17-12-2 the same as X2CrNiMoCuN25-6-3?
316 / X5CrNiMo17-12-2 and X2CrNiMoCuN25-6-3 have a 40% composition overlap. They are generally not directly interchangeable.
Can I replace 316 / X5CrNiMo17-12-2 with X2CrNiMoCuN25-6-3?
Generally not recommended. The compositions differ significantly (40% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 316 / X5CrNiMo17-12-2 and X2CrNiMoCuN25-6-3?
The main differences are in the following elements: Cr, Mo, Ni, N. 316 / X5CrNiMo17-12-2 is a Stainless Steel grade, while X2CrNiMoCuN25-6-3 is a Stainless Steel grade.
Related Comparisons
View full data for each material:
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.