316 / X5CrNiMo17-12-2 vs SUS420J2: 41% composition overlap. Significantly different materials serving different application areas.
316 / X5CrNiMo17-12-2 vs SUS420J2
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.
SUS420J2
Japanese martensitic stainless steel — the higher-carbon variant of the 420 family (C 0.26-0.40%). Achieves HRC 50-55 after heat treatment. Very good corrosion resistance for a martensitic grade. THE budget knife/cutlery steel worldwide. Also used for surgical instruments, haircutting scissors, and industrial blades. ≈ EN X30Cr13 (1.4028) / Chinese 3Cr13.
| 316 / X5CrNiMo17-12-2 | SUS420J2 | |
|---|---|---|
| Material Number | 1.4401 | — |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | JIS G4303 |
Chemical composition (wt%)
| Element | 316 / X5CrNiMo17-12-2 | SUS420J2 | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0.26–0.4% | No overlap |
| Si | 0–1% | 0–1% | OK |
| Mn | 0–2% | 0–1% | OK |
| P | 0–0.045% | 0–0.04% | OK |
Mechanical properties
| Property | 316 / X5CrNiMo17-12-2 | SUS420J2 | Unit |
|---|---|---|---|
| tensile_strength | 530–680 | 620–700 | MPa |
| yield_strength | ≥ 220 | 340–400 | MPa |
| elongation | ≥ 40 | 12–18 | % |
Compatibility Assessment
316 / X5CrNiMo17-12-2 and SUS420J2 have significantly different compositions (41% 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 SUS420J2?
316 / X5CrNiMo17-12-2 and SUS420J2 have a 41% composition overlap. They are generally not directly interchangeable.
Can I replace 316 / X5CrNiMo17-12-2 with SUS420J2?
Generally not recommended. The compositions differ significantly (41% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 316 / X5CrNiMo17-12-2 and SUS420J2?
The main differences are in the following elements: C, Cr, Ni. 316 / X5CrNiMo17-12-2 is a Stainless Steel grade, while SUS420J2 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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