UGIPERM® 12FM Solution Annealed and Cold Worked
UGIPERM® 12FM Solution Annealed and Cold Worked introduction
UGIPERM® 12FM is a free-machining ferritic stainless steel containing 12% chromium and an addition of silicon. This grade, which was developed for magnetic applications, has high permeability and a particularly low coercive field. It is specially designed for the manufacture of electromechanical actuators such as electro-injectors or solenoid valves. In addition, its high electrical resistivity makes it possible to obtain short activation times suitable for dynamic magnetic loads, by limiting losses due to eddy currents. The chemical analysis of UGIPERM® 12FM has been optimised to ensure good machinability properties that are particularly suited to the manufacture of mass-produced parts by bar turning. This grade has high magnetic characteristics and medium corrosion resistance, similar to that of 430FR / 4105Si.
In the as-delivered condition, the microstructure of UGIPERM® 12FM consists of ferrite, chromium carbides and manganese sulphides. It is therefore ferromagnetic ("attracted to a magnet").
Equivalent material: DIN 1.4045, EN 1.4045
UGIPERM® 12FM Solution Annealed and Cold Worked general
| Property |
Value |
| Density |
Density of 7.75 g/cm³ |
UGIPERM® 12FM Solution Annealed and Cold Worked thermal
| Property |
Value |
Comment |
| Coefficient of thermal expansion |
Coefficient of thermal expansion of 0.0000104 1/K |
20 to 100°C |
| - |
Coefficient of thermal expansion of 0.0000108 1/K |
20 to 200°C |
| - |
Coefficient of thermal expansion of 0.0000115 1/K |
20 to 300°C |
| Specific heat capacity |
Specific heat capacity of 460 J/(kg·K) |
- |
| Thermal conductivity |
Thermal conductivity of 22 W/(m·K) |
- |
UGIPERM® 12FM Solution Annealed and Cold Worked chemical
| Property |
Value |
Comment |
| Carbon |
Carbon of 0.02 |
max. |
| Chromium |
Chromium of 11.0 - 13.0 % |
- |
| Copper |
Copper of 0.5 |
max. |
| Manganese |
Manganese of 0.5 |
max. |
| Molybdenum |
Molybdenum of 0.2 - 0.7000000000000001 % |
- |
| Nickel |
Nickel of 0.5 |
max. |
| Phosphorus |
Phosphorus of 0.04 |
max. |
| Silicon |
Silicon of 1.0 - 2.0 % |
- |
| Sulfur |
Sulfur of 0.15 - 0.25 % |
- |
UGIPERM® 12FM Solution Annealed and Cold Worked electrical
| Property |
Value |
| Electrical resistivity |
Electrical resistivity of 7e-07 Ω·m |
UGIPERM® 12FM Solution Annealed and Cold Worked mechanical
| Property |
Value |
Comment |
| Elastic modulus |
Elastic modulus of 200 GPa |
- |
| Elongation |
Elongation of 8 % |
min. |
| Tensile strength |
Tensile strength of 500.0 - 750.0 MPa |
- |
UGIPERM® 12FM Solution Annealed and Cold Worked application
| Property |
- |
- |
| Cold Forming |
| Corrosion properties |
| General machinability |
| Hot forming |
| Other |
Product |
Shape |
Finish |
Tolerance |
Dimensions (mm) |
| Bars |
Round |
Cold-finished by drawing |
h9 |
2.0-28 |
| Bars |
Round |
Cold-finished by grinding |
h8, h7, h6 |
2.0-28 |
| Bars |
Round |
Cold-finished by machining |
- |
20-70 |
| Bars |
Hexagon |
Cold-finished by drawing |
- |
2.5-55 |
| Drawn wire |
Round |
- |
- |
0.2-10 |
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