Alleima® 6C27 is a martensitic stainless chromium steel with a low carbon content that is characterized by excellent formability. After hardening, the grade has good corrosion resistance and high toughness.
Typical applications for Alleima® 6C27 are shaving heads in electric shavers, kitchen tools like butter knives and slicers and potato peelers.
Standards
- ASTM: 420
- UNS: S42000
- W.Nr.: 1.4007
- DIN: X 35 Cr 14
Chemical composition (nominal)
| C | Si | Mn | P | S | Cr |
|---|---|---|---|---|---|
| 0.32 | 0.2 | 0.3 | ≤0.025 | ≤0.010 | 13.7 |
Forms of supply
The strips can be supplied either in coils or as straightened lengths of 0.5 - 4.0 meter (1.6 - 13.1 feet). The coil weight is max 5 kg/mm (280 lbs/in.) of strip width.
Hardening and tempering of the strip steel is needed to achieve the correct finish and to meet the properties required by the end user.
| Thickness | Width | ||
|---|---|---|---|
| mm (in.) | mm (in.) | ||
| Min. | Max | Min. | Max. |
| 0.10 (0.0039) | 2.5 (0.098) | 5 (0.197) | 380 (14.96) |
Other sizes can be supplied to meet specific requirements.
Tolerances
The thickness and width tolerances are +/- tolerances to the nominal size. The normal tolerance classes for most of our strip products are T2 and B1. Tighter tolerances as well as other tolerance limits can be offered upon request.
| As-delivered | Tensile strength | Hardness | |
|---|---|---|---|
| MPa (ksi) | HV | HRB | |
| Annealed | max. 600 (87) | max. 185 | max 88.5 |
| Cold rolled | 700-1000 (102-145) | 215-315 | 94.3-106.6 |
Heat treatment
Hardening data
Hardening temperature 1070°C (1960°F), holding time 3 minutes, quenching in oil.
Tempering data
Tempering time 30 minutes.
Brittleness occurs with tempering above 450°C (840°F).
Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Alleima materials.