EN 1.4006 is a martensitic stainless steel with moderate corrosion resistance and high mechanical strength. It is commonly known by its AISI equivalent 410 stainless steel and is used in applications where hardness, strength, and some corrosion resistance are important.
| Standard | Equivalent Grade |
|---|---|
| AISI/ASTM | 410 |
| UNS | S41000 |
| DIN | X12Cr13 |
| GB (China) | 1Cr13 |
| JIS | SUS410 |
| Element | Content (wt%) |
|---|---|
| Carbon (C) | 0.08–0.15 |
| Chromium (Cr) | 11.5–13.5 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Nitrogen (N) | ≤ 0.11 |
| Property | Value |
|---|---|
| Tensile strength | 500–700 MPa (annealed) |
| Yield strength (Rp0.2) | ≥ 300 MPa |
| Hardness (HB) | ≤ 225 (annealed) |
| Elongation (A5) | ≥ 20% |
| Impact toughness | Moderate |
In the hardened and tempered state, tensile strength can exceed 800 MPa.
| Process | Temperature Range |
|---|---|
| Annealing | 815–900 °C |
| Hardening | 980–1030 °C |
| Tempering | 150–650 °C |
| Cooling | Air or oil (after quenching) |
Valve components
Pump shafts
Knife blades
Fasteners
Turbine parts
Petrochemical components
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