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DIN 17440 Grade X6Cr17 Soft Annealed (+A) – Premium Corrosion‑Resistant Ferritic Steel

Properties: - ferritic steel (17 % Cr) - widely resistant in water, steam, weak acids, brines and oxidising acids (for example nitric acid) - to ensure good corrosion resistance a metalic cleaned surface is necessary - good deep drawing properties and good to burnishing in case of not welded elements - application in cold rolled, fine grounded or polished state - application temperature: up to 300°C Application: - as cold rolled sheet for washing machine and kittchen equipment (cutlery) - in food industry and nitric acid industry - as decorative elements, like racks, markers, locker systems

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.65 - 7.7 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

196 - 231.66 GPa

95.0 °C

227.53 GPa

100.0 °C

218 GPa

150.0 °C

223.39 GPa

200.0 °C

212 GPa

205.0 °C

218.56 GPa

260.0 °C

213.74 GPa

300.0 °C

205 GPa

315.0 °C

209.6 GPa

370.0 °C

204.09 GPa

400.0 °C

197 GPa

425.0 °C

198.57 GPa

485.0 °C

193.05 GPa

540.0 °C

187.54 GPa

595.0 °C

180.64 GPa

650.0 °C

173.06 GPa

705.0 °C

162.72 GPa

760.0 °C

151.69 GPa

815.0 °C

144.79 GPa

Elongation

20.0 °C

20 %

Elongation, transverse

20.0 °C

15 - 18 %

Hardness, Brinell

20.0 °C

185 [-]

Hardness, Brinell, trans

20.0 °C

185 [-]

Hardness, Vickers

20.0 °C

185 [-]

Poisson's ratio

20.0 °C

0.24 [-]

95.0 °C

0.27 [-]

150.0 °C

0.28 [-]

205.0 °C

0.29 [-]

260.0 °C

0.29 [-]

315.0 °C

0.29 [-]

370.0 °C

0.29 [-]

425.0 °C

0.29 [-]

485.0 °C

0.3 [-]

540.0 °C

0.31 [-]

595.0 °C

0.31 [-]

650.0 °C

0.34 [-]

705.0 °C

0.34 [-]

760.0 °C

0.33 [-]

815.0 °C

0.35 [-]

Shear modulus

20.0 °C

93.08 GPa

95.0 °C

89.63 GPa

150.0 °C

87.56 GPa

205.0 °C

84.81 GPa

260.0 °C

82.74 GPa

315.0 °C

81.36 GPa

370.0 °C

79.29 GPa

425.0 °C

77.22 GPa

485.0 °C

74.46 GPa

540.0 °C

71.71 GPa

595.0 °C

68.95 GPa

650.0 °C

64.81 GPa

705.0 °C

60.67 GPa

760.0 °C

57.23 GPa

815.0 °C

53.78 GPa

Tensile strength

20.0 °C

450 - 600 MPa

Tensile strength, transverse

20.0 °C

450 - 600 MPa

Yield strength

20.0 °C

270 MPa

Yield strength Rp0.2

20.0 °C

270 MPa

Yield strength Rp0.2, transverse

20.0 °C

270 MPa

Yield strength, transverse

20.0 °C

270 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

9.2E-6 1/K

20.0 °C

9.9E-6 1/K

100.0 °C

1E-5 - 1.03E-5 1/K

200.0 °C

1E-5 - 1.08E-5 1/K

300.0 °C

1.05E-5 - 1.12E-5 1/K

400.0 °C

1.05E-5 - 1.16E-5 1/K

500.0 °C

1.1E-5 - 1.19E-5 1/K

600.0 °C

1.21E-5 1/K

700.0 °C

1.24E-5 1/K

800.0 °C

1.29E-5 1/K

900.0 °C

1.34E-5 1/K

1000.0 °C

1.39E-5 1/K

Max service temperature, long

0 - 300 °C

Melting point

1425 - 1530 °C

Typical for Ferritic Stainless Steel

Specific heat capacity

20.0 °C

450 - 460 J/(kg·K)

100.0 °C

482 J/(kg·K)

200.0 °C

506 J/(kg·K)

300.0 °C

525 J/(kg·K)

400.0 °C

547 J/(kg·K)

500.0 °C

576 J/(kg·K)

600.0 °C

616 J/(kg·K)

Thermal conductivity

20.0 °C

19.6 - 25 W/(m·K)

Thermal diffusivity

20.0 °C

5.7 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

6E-7 - 6.17E-7 Ω·m

Chemical properties

PropertyValue

Aluminium

0.1 - 0.3 %

Carbon

0.08 %

Chromium

15.5 - 18 %

Manganese

1 %

Phosphorus

0.04 - 0.05 %

Silicon

1 %

Sulfur

0.015 - 0.03 %


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