Ferro-Titanit® Nikro 128

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Description

The matrix structure consists of a highly tough, age-hardenable nickel martensite. The chromium content of 13.5 % provides good corrosion resistance. Finish-machining 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.

This material data has been provided by Deutsche Edelstahlwerke Specialty Steel (DEW).

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyValue

Density

6.6 g/cm³

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Grain structure

Titanium carbide + nickel martensite

Mechanical

PropertyValue

Compressive strength

2750.0 MPa

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Elastic modulus

294 GPa

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Flexural strength

1200.0 MPa

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Hardness, Rockwell C

62.0 [-]

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Shear modulus

117.0 GPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100 °C

0.0000083 1/K

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for 20°C to the mentioned temperature

200 °C

0.0000089 1/K

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for 20°C to the mentioned temperature

300 °C

0.0000093 1/K

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for 20°C to the mentioned temperature

400 °C

0.0000096 1/K

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for 20°C to the mentioned temperature

500 °C

0.0000099 1/K

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for 20°C to the mentioned temperature

600 °C

0.0000102 1/K

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for 20°C to the mentioned temperature

700 °C

0.0000092 1/K

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for 20°C to the mentioned temperature

800 °C

0.0000095 1/K

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for 20°C to the mentioned temperature

Thermal conductivity

100 °C

17.1 W/(m·K)

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150 °C

17.8 W/(m·K)

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200 °C

18.8 W/(m·K)

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250 °C

19.9 W/(m·K)

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300 °C

21.2 W/(m·K)

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350 °C

22.6 W/(m·K)

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400 °C

24.2 W/(m·K)

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450 °C

25.9 W/(m·K)

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500 °C

27.6 W/(m·K)

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550 °C

29.5 W/(m·K)

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600 °C

31.5 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

20 °C

0.0000011 Ω·m

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100 °C

0.00000112 Ω·m

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200 °C

0.00000117 Ω·m

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300 °C

0.00000121 Ω·m

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400 °C

0.00000125 Ω·m

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500 °C

0.00000131 Ω·m

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600 °C

0.00000167 Ω·m

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Magnetic

PropertyValue

Coercive force

3700.0 A/m

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Remanence

0.19 T

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Saturation polarization

0.74 T

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Chemical properties

PropertyValueComment

Chromium

13.5

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Cobalt

9.0

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Molybdenum

5.0

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Nickel

4.0

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Other

30.0

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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: 62 HRC