Is 1.4408 equivalent to SS316?
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When sourcing stainless steel parts for corrosive or high-performance environments, buyers often ask: Is EN 1.4408 equivalent to SS316 (AISI 316)?. This article explains the , grade - helping engineers and procurement professionals make informed decisions.
What Is EN 1.4408?
EN 1.4408EN 10213. It's commonly used for producing valves, pumps, flanges, and pressure-containing cast components in the chemical, petrochemical, and marine industries.
Standard name: EN 1.4408
Designation: GX5CrNiMo19-11-2
Equivalent UNS: J92900
What Is SS316 / AISI 316?
SS316AISI 316, is a wrought austenitic stainless steel under the ASTM system. It's widely used in sheet, plate, bar, pipe, and tube form for welded or machined structures.
UNS number: S31600
Material form: Hot-rolled, cold-rolled, forged, drawn
EN 1.4408 Chemical Composition Comparison
EN 1.4408 contains slightly more chromium and may have higher silicon/manganese due to the casting process.
| EN 1.4408 (Cast) | AISI 316 (Wrought) | |
|---|---|---|
| C | <= 0.07% | <= 0.08% |
| 18.0–20.0% | 16.0–18.0% | |
| 9.0–11.0% | 10.0–14.0% | |
| 2.0–3.0% | 2.0–3.0% | |
Difference between 1.4408 and 316 Mechanical Properties Comparison
| EN 1.4408 (Cast) | AISI 316 (Wrought) | |
|---|---|---|
| ~450–750 MPa | ~515–700 MPa | |
| ~200–300 MPa | ~205 MPa | |
| ~20–30% | ~40–50% | |
| <= 220 | <= 217 |
Are 1.4408 and SS316 Equivalent?
In terms of corrosion resistance and chemical composition, yes - they are functionally equivalent.
.
| EN 1.4408 | AISI 316 | |
|---|---|---|
| EN 10213 | ASTM A240, A276, A312 | |
GX5CrNiMo19-11-2 vs AISI 316 :Applications
EN 1.4408 (Cast):
Flanged fittings and pressure-bearing castings
SS316 (Wrought):
