This guide answers common buyer questions about X12Cr13 / 1.4006 / 410 stainless steel, including its chemical composition, equivalent grades, heat treatment behavior, and typical applications.
This steel belongs to the martensitic family, which means it can be hardened by heat treatment-unlike austenitic types like 304 or 316.
| Designation | Standard | Description |
|---|---|---|
| X12Cr13 | EN 10088-1 | Steel with 12% Cr, martensitic structure |
| 1.4006 | EN | Werkstoffnummer for X12Cr13 |
| AISI 410 | ASTM | Equivalent American grade |
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.08 – 0.15 |
| Chromium (Cr) | 11.5 – 13.5 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.03 |
| Iron (Fe) | Balance |
| Property | Value (Typical) |
|---|---|
| Tensile Strength | 500 – 750 MPa (annealed), up to 1000 MPa (hardened) |
| Yield Strength | ≥ 300 MPa |
| Hardness (HBW) | ~200–300 (annealed), up to 400+ (hardened) |
| Elongation (A5) | 15 – 20% |
| Density | ~7.75 g/cm³ |
| Magnetic | Yes |
X12Cr13 / 1.4006 is air or oil hardenable, and its properties depend heavily on heat treatment:
Annealing: 800–850°C followed by slow cooling (soft structure)
Hardening: 980–1050°C followed by rapid cooling (martensitic structure)
Tempering: 200–600°C to reduce brittleness and adjust hardness
⚠️ Temper at temperatures above 400°C to avoid temper embrittlement.
| Standard | Equivalent Grade |
|---|---|
| ASTM/SAE | AISI 410, UNS S41000 |
| EN | X12Cr13, 1.4006 |
| JIS | SUS410 |
| GB | 1Cr13 |
| ISO | X12Cr13 |
SUS410 (martensitic Cr13 series, carbon ≤0.15%, nickel-free) can be hardened and strengthened, with high strength (tensile strength ≥440MPa) but weak corrosion resistance, and is suitable for tool bearings.
304 (austenitic 18Cr-8Ni, carbon ≤0.08%) has excellent corrosion resistance and plasticity (elongation ≥40%) due to its nickel content, non-magnetic and no need for heat treatment after welding, and is mostly used in food equipment and decoration.
We supply X12Cr13 / 1.4006 / AISI 410 stainless steel in multiple forms and heat-treated conditions, with full EN 10204 3.1 certification, fast delivery, and global export packaging. Ideal for machined components, hardened wear parts, and custom forging.
You can refer to the following websites：https://www.gneestainless.com/
Form: Sheet, plate, round bar, forged parts, pipe
Thickness: 2 mm to 100 mm
Surface: Pickled, ground, rough machined
Standards: EN 10088-2, ASTM A240, A276, A479
Condition: Annealed, hardened + tempered (QT800/QT900)
