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DIN 17744 NiCr19NbMo Precipitation‑Hardened Alloy – High‑Temperature, Corrosion‑Resistant Performance

high-temperature resistant nickel alloy for sheet metals, volumes, bars, forgings - high-temperature resistant - corrosion resistant - hardenable - weldable - cold-tough Application - for construction units to 700°C high-temperature resistant and to 980°C to be resistant to scaling (turbine disks, housings and parts of liquid-fuel rockets)

Properties

General

PropertyTemperatureValue

Density

20.0 °C

8.2 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-269.0 °C

210.9 GPa

-195.0 °C

212.3 GPa

20.0 °C

199 GPa

27.0 °C

204.1 GPa

100.0 °C

195 GPa

200.0 °C

190 GPa

300.0 °C

185 GPa

400.0 °C

179 GPa

500.0 °C

174 GPa

600.0 °C

167 GPa

700.0 °C

163 GPa

800.0 °C

149 GPa

900.0 °C

134 GPa

Elongation

20.0 °C

8 - 11 %

Elongation A50, transverse

20.0 °C

12 %

Elongation, transverse

20.0 °C

5 %

Hardness, Brinell

20.0 °C

331 [-]

Hardness, Vickers

20.0 °C

350 [-]

Poisson's ratio

-269.0 °C

0.3 [-]

-195.0 °C

0.31 [-]

27.0 °C

0.31 [-]

Reduction of area

20.0 °C

15 - 20 %

Reduction of area, transverse

20.0 °C

8 %

Tensile strength

20.0 °C

1270 - 1750 MPa

Tensile strength, transverse

20.0 °C

1240 MPa

Yield strength Rp0.2

20.0 °C

1040 - 1440 MPa

200.0 °C

1040 MPa

300.0 °C

1020 MPa

400.0 °C

1000 MPa

500.0 °C

950 - 980 MPa

600.0 °C

950 MPa

700.0 °C

870 MPa

800.0 °C

640 MPa

Yield strength Rp0.2, transverse

20.0 °C

1040 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.28E-5 1/K

200.0 °C

1.34E-5 1/K

300.0 °C

1.38E-5 1/K

400.0 °C

1.41E-5 1/K

500.0 °C

1.43E-5 1/K

600.0 °C

1.47E-5 1/K

700.0 °C

1.56E-5 1/K

800.0 °C

1.64E-5 1/K

900.0 °C

1.72E-5 1/K

Max service temperature, long

-250 - 700 °C

Melting point

1200 - 1480 °C

Typical for Nickel Chromium Iron Alloy

Specific heat capacity

20.0 °C

440 J/(kg·K)

100.0 °C

450 J/(kg·K)

200.0 °C

470 J/(kg·K)

300.0 °C

500 J/(kg·K)

400.0 °C

520 J/(kg·K)

500.0 °C

530 J/(kg·K)

600.0 °C

560 J/(kg·K)

700.0 °C

630 J/(kg·K)

800.0 °C

640 J/(kg·K)

900.0 °C

650 J/(kg·K)

Thermal conductivity

20.0 °C

13 W/(m·K)

100.0 °C

13 W/(m·K)

200.0 °C

14 W/(m·K)

300.0 °C

15 W/(m·K)

400.0 °C

17 W/(m·K)

500.0 °C

19 W/(m·K)

600.0 °C

21 W/(m·K)

700.0 °C

23 W/(m·K)

800.0 °C

25 W/(m·K)

900.0 °C

27 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

800000 S/m

Electrical resistivity

20.0 °C

1.25E-6 Ω·m

Chemical properties

PropertyValue

Aluminium

0.3 - 0.7 %

Boron

2E-3 - 6E-3 %

Carbon

0.02 - 0.7 %

Chromium

17 - 21 %

Cobalt

1 %

Copper

0.2 %

Iron

11.33 - 24.3 %

Manganese

0.35 %

Molybdenum

2.8 - 3.3 %

Nickel

50 - 55 %

Niobium

4.8 - 5.5 %

Phosphorus

0.02 %

Silicon

0.35 %

Sulfur

0.015 %

Titanium

0.7 - 1.15 %


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