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EN 10028-7 Grade X6CrNi25-20: Solution-Annealed Austenitic Steel for High-Temperature Applications

The austenitic steel X6CrNi25-20 is applicated for high temperature resistant construction parts. The material is not resistant to intercrystalline corrosion. The steel is according to DIN EN 10095 usable as heat resistant steel.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.9 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

200 GPa

100.0 °C

190 GPa

200.0 °C

185 GPa

300.0 °C

175 GPa

400.0 °C

170 GPa

500.0 °C

160 GPa

600.0 °C

155 GPa

700.0 °C

145 GPa

800.0 °C

140 GPa

900.0 °C

135 GPa

1000.0 °C

125 GPa

Elongation A80, transverse

20.0 °C

35 %

Elongation, transverse

20.0 °C

35 %

Poisson's ratio

23.0 °C

0.3 [-]

Typical for Austenitic Stainless Steel

Shear modulus

23.0 °C

77 GPa

Typical for Austenitic Stainless Steel

Tensile strength

20.0 °C

510 - 730 MPa

50.0 °C

495 MPa

100.0 °C

470 MPa

150.0 °C

450 MPa

200.0 °C

430 MPa

250.0 °C

420 MPa

300.0 °C

410 MPa

350.0 °C

405 MPa

400.0 °C

400 MPa

450.0 °C

385 MPa

500.0 °C

370 MPa

550.0 °C

350 MPa

600.0 °C

320 MPa

Tensile strength, transverse

20.0 °C

510 - 730 MPa

Yield strength Rp0.2

50.0 °C

177 MPa

100.0 °C

140 MPa

150.0 °C

128 MPa

200.0 °C

116 MPa

250.0 °C

108 MPa

300.0 °C

100 MPa

350.0 °C

94 MPa

400.0 °C

91 MPa

450.0 °C

86 MPa

500.0 °C

85 MPa

550.0 °C

84 MPa

600.0 °C

82 MPa

Yield strength Rp0.2, transverse

20.0 °C

200 - 220 MPa

Yield strength Rp1.0

50.0 °C

219 MPa

100.0 °C

185 MPa

150.0 °C

167 MPa

200.0 °C

154 MPa

250.0 °C

146 MPa

300.0 °C

139 MPa

350.0 °C

132 MPa

400.0 °C

126 MPa

450.0 °C

123 MPa

500.0 °C

121 MPa

550.0 °C

118 MPa

600.0 °C

114 MPa

Yield strength Rp1.0, transverse

20.0 °C

240 - 250 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

200.0 °C

1.55E-5 1/K

300.0 °C

1.63E-5 1/K

400.0 °C

1.7E-5 1/K

500.0 °C

1.73E-5 1/K

600.0 °C

1.75E-5 1/K

700.0 °C

1.8E-5 1/K

800.0 °C

1.85E-5 1/K

900.0 °C

1.88E-5 1/K

1000.0 °C

1.9E-5 1/K

Melting point

1230 - 1480 °C

Typical for Austenitic Stainless Steel

Specific heat capacity

20.0 °C

500 J/(kg·K)

Thermal conductivity

20.0 °C

15 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

8.5E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.04 - 0.08 %

Chromium

24 - 26 %

Manganese

2 %

Nickel

19 - 22 %

Nitrogen

0.1 - 0.11 %

Phosphorus

0.04 %

Silicon

0.7 %

Sulfur

0.015 %


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