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Ferro-Titanit® Nikro 143: Premium Age-Hardenable Nickel Martensite Alloy

The matrix structure consists of a highly tough, age-hardenable nickel martensite. Finishing is performed in the solution-annealed, as-delivered condition. Subsequent age-hardening takes place at a relatively low temperature of 480 °C and can be conducted, for example, in a convection air furnace or an electrically heated chamber furnace. The workpiece remains extremely true-to-size and little prone to distortion due to the low age-hardening temperature.

Properties

General

PropertyValue

Density

6.7 g/cm³

Grain structure

Titanium carbide + nickel martensite

Mechanical

PropertyValue

Compressive strength

2400 MPa

Elastic modulus

280 GPa

Flexural strength

1450 MPa

Hardness, Rockwell C

63 [-]

Shear modulus

117 GPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100 °C

8e-06 1/K

for 20°C to the mentioned temperature

200 °C

8.7e-06 1/K

for 20°C to the mentioned temperature

300 °C

8.9e-06 1/K

for 20°C to the mentioned temperature

400 °C

9.1e-06 1/K

for 20°C to the mentioned temperature

500 °C

9.4e-06 1/K

for 20°C to the mentioned temperature

600 °C

9.8e-06 1/K

for 20°C to the mentioned temperature

700 °C

9.4e-06 1/K

for 20°C to the mentioned temperature

800 °C

8.5e-06 1/K

for 20°C to the mentioned temperature

900 °C

9.2e-06 1/K

for 20°C to the mentioned temperature

1000 °C

9.7e-06 1/K

for 20°C to the mentioned temperature

Thermal conductivity

18.1 - 18.9 W/(m·K)

20-80°C

Electrical

PropertyValue

Electrical resistivity

8.06e-07 Ω·m

Magnetic

PropertyValue

Coercive force

1800 A/m

Remanence

0.23 T

Saturation polarization

0.158 T

Chemical properties

PropertyValueComment

Cobalt

9 %

Iron

Balance

Molybdenum

6 %

Nickel

15 %

Other

30 %

TiC

Technological properties

Property
Application areas

In heat-treated, hardened condition (up to 69 HRC), Ferro-Titanit® can be used to solve many wear problems economically.

General machinability

In as-delivered condition, this material can be machined by conventional methods.

Heat Treatment

Annealing: 850°C, 2-4 hr in vacuum (Cooling 1-4.5 bar N2) Hardness: 53 HRC - Age-Hardening 480°C, 6-8 hr, Hardness: 63 HRC


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