X2CrNiN23-4
1.4362Lean duplex stainless steel (SAF 2304 / UNS S32304) with reduced Mo and Ni content compared to 2205. Cost-effective alternative to austenitic 316L with ~2× yield strength (400 MPa) and good stress corrosion cracking resistance. No Mo addition — relies on Cr+N for corrosion resistance (PREN ~25). Used for storage tanks, water heaters, transport tanks, structural applications in construction (e.g. reinforcing bar), and swimming pool structures. The budget-friendly duplex option.
Chemical composition comparison (wt%)
Side-by-side: X2CrNiN23-4 (EN) (EN 10088-2) vs ASTM
| Element | X2CrNiN23-4 (EN) | ASTM | Overlap |
|---|---|---|---|
| C | ≤ 0.03% | — | — |
| Si | ≤ 1% | — | — |
| Mn | ≤ 2% | — | — |
| P | ≤ 0.035% | — | — |
| S | ≤ 0.015% | — | — |
| Cr | 22–24% | — | — |
| Mo | 0.1–0.6% | — | — |
| Ni | 3.5–5.5% | — | — |
| Cu | 0.1–0.6% | — | — |
| N | 0.05–0.2% | — | — |
Mechanical properties
Solution Annealed
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 600–830 | MPa |
| Yield Strength | ≥ 400 | MPa |
| Elongation | ≥ 25 | % |
| Hardness HB | ≤ 260 | HB |
General
| Property | Value | Unit |
|---|---|---|
| Density | ≥ 7.8 | g/cm3 |
Related materials
304 Stainless Steel
1.4301The most widely used austenitic stainless steel. Excellent corrosion resistance, good formability and weldability. Standard choice for food processing, chemical, and architectural applications.
316L
1.4404Low-carbon austenitic stainless steel with molybdenum addition. Superior corrosion resistance to 304, especially against chlorides and pitting. Standard choice for chemical processing, marine, medical implants, and pharmaceutical equipment.
430 Stainless Steel
1.4016Ferritic chromium stainless steel with good corrosion resistance and formability. Lower cost than austenitic grades. Used for automotive trim, kitchen sinks, architectural panels, and appliance components.
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