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EN 10028-7 Grade X5CrNi18-10 Solution Annealed (+AT) – High-Performance Austenitic Stainless Steel

The basic type of the austenitic CrNi-steels X5CrNi18-10 shows high corrosion resistance but no resistance to intercrystalline corrosion in sensitized condition as well as favorable workability. The steel is suitable for mirror-polishing, is well cold formable, weldable and wear resistant. Application for welded parts in chemical apparatus engineering, food and milk industry, for household appliances, in breweries, in architecture and vehicle manufacturing as well as for pumps, compressors, instruments. Application also in water and low contaminated sewages. In pressure vessel construction up to 300 °C, above subject to authorization. The sort is acc. to DIN EN 10095 allowed to be used as a heat-resistant steel. Application temperature: -200 to 550 °C. In construction trade X5CrNi18-10 is applicated for decorative purposes in exterior and interior architecture, e.g. roof and wall elements, facings, washing plants, washbasins in toilets, for doors and windows. The material is approved for structural components (extended approval certificate Nr. Z-30.44.1 of Institut für Bautechnik Berlin, dated 01/02/89, containing demands for materials, calculation, construction and control). Strength grades E 225 and E 355 are common.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.9 - 7.92 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

206 GPa

20.0 °C

196 - 200 GPa

24.0 °C

194.4 - 196.5 GPa

100.0 °C

190 - 194 GPa

149.0 °C

188.2 - 189.6 GPa

200.0 °C

182 - 186 GPa

260.0 °C

182.7 - 184.1 GPa

300.0 °C

174 - 179 GPa

371.0 °C

173.1 - 177.9 GPa

400.0 °C

166 - 172 GPa

483.0 °C

157.9 - 160 GPa

500.0 °C

158 - 165 GPa

593.0 °C

149.6 - 155.8 GPa

600.0 °C

150 GPa

700.0 °C

142 GPa

704.0 °C

137.9 - 144.8 GPa

800.0 °C

134 GPa

816.0 °C

120.7 - 128.2 GPa

Elongation

-196.0 °C

30 %

-150.0 °C

30 %

-80.0 °C

35 %

20.0 °C

45 %

Elongation A80, transverse

20.0 °C

45 %

Elongation, transverse

20.0 °C

45 %

Poisson's ratio

20.0 °C

0.28 [-]

24.0 °C

0.24 - 0.25 [-]

149.0 °C

0.27 - 0.3 [-]

260.0 °C

0.29 - 0.32 [-]

371.0 °C

0.32 [-]

483.0 °C

0.27 - 0.29 [-]

593.0 °C

0.29 - 0.3 [-]

704.0 °C

0.27 - 0.3 [-]

816.0 °C

0.23 - 0.27 [-]

Shear modulus

24.0 °C

78.6 GPa

149.0 °C

72.4 - 74.5 GPa

260.0 °C

69.6 - 71 GPa

371.0 °C

65.5 - 67.6 GPa

483.0 °C

62.1 GPa

593.0 °C

57.9 - 60 GPa

704.0 °C

54.5 - 55.9 GPa

816.0 °C

49 - 50.3 GPa

Tensile strength

-196.0 °C

1250 MPa

-150.0 °C

1100 MPa

-80.0 °C

860 MPa

20.0 °C

520 - 750 MPa

50.0 °C

494 MPa

100.0 °C

450 MPa

150.0 °C

420 MPa

200.0 °C

400 MPa

250.0 °C

390 MPa

300.0 °C

380 MPa

350.0 °C

380 MPa

400.0 °C

380 MPa

450.0 °C

370 MPa

500.0 °C

360 MPa

550.0 °C

330 MPa

Tensile strength, transverse

20.0 °C

520 - 750 MPa

Yield strength Rp0.2

-196.0 °C

300 MPa

-150.0 °C

315 MPa

-80.0 °C

270 MPa

20.0 °C

210 MPa

50.0 °C

190 MPa

100.0 °C

157 MPa

150.0 °C

142 MPa

200.0 °C

127 MPa

250.0 °C

118 MPa

300.0 °C

110 MPa

350.0 °C

104 MPa

400.0 °C

98 MPa

450.0 °C

95 MPa

500.0 °C

92 MPa

550.0 °C

90 MPa

Yield strength Rp0.2, transverse

20.0 °C

210 - 230 MPa

Yield strength Rp1.0

-196.0 °C

400 MPa

-150.0 °C

415 MPa

-80.0 °C

350 MPa

20.0 °C

250 MPa

50.0 °C

228 MPa

100.0 °C

191 MPa

150.0 °C

172 MPa

200.0 °C

157 MPa

250.0 °C

145 MPa

300.0 °C

135 MPa

350.0 °C

129 MPa

400.0 °C

125 MPa

450.0 °C

122 MPa

500.0 °C

120 MPa

550.0 °C

120 MPa

Yield strength Rp1.0, transverse

20.0 °C

250 - 260 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.49E-5 1/K

20.0 °C

1.61E-5 1/K

100.0 °C

1.6E-5 - 1.67E-5 1/K

200.0 °C

1.65E-5 - 1.72E-5 1/K

300.0 °C

1.7E-5 - 1.77E-5 1/K

400.0 °C

1.75E-5 - 1.81E-5 1/K

500.0 °C

1.8E-5 - 1.84E-5 1/K

600.0 °C

1.88E-5 1/K

700.0 °C

1.91E-5 1/K

800.0 °C

1.94E-5 1/K

Max service temperature, long

-200 - 550 °C

Melting point

1230 - 1480 °C

Typical for Austenitic Stainless Steel

Specific heat capacity

-100.0 °C

440 J/(kg·K)

20.0 °C

472 - 500 J/(kg·K)

100.0 °C

487 J/(kg·K)

200.0 °C

503 J/(kg·K)

300.0 °C

512 J/(kg·K)

400.0 °C

520 J/(kg·K)

500.0 °C

530 J/(kg·K)

600.0 °C

541 J/(kg·K)

700.0 °C

551 J/(kg·K)

800.0 °C

559 J/(kg·K)

Thermal conductivity

-100.0 °C

11.7 W/(m·K)

20.0 °C

14.5 - 15 W/(m·K)

100.0 °C

16 W/(m·K)

200.0 °C

17.6 W/(m·K)

300.0 °C

19.1 W/(m·K)

400.0 °C

20.4 W/(m·K)

500.0 °C

21.9 W/(m·K)

600.0 °C

23.3 W/(m·K)

700.0 °C

24.7 W/(m·K)

800.0 °C

26.1 W/(m·K)

Thermal diffusivity

-100.0 °C

3.7 mm²/s

20.0 °C

3.9 mm²/s

100.0 °C

4.3 mm²/s

200.0 °C

4.3 mm²/s

300.0 °C

4.6 mm²/s

400.0 °C

4.7 mm²/s

500.0 °C

4.9 mm²/s

600.0 °C

5 mm²/s

700.0 °C

5.3 mm²/s

800.0 °C

5.7 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

-100.0 °C

5.86E-7 Ω·m

20.0 °C

6.92E-7 - 7.3E-7 Ω·m

100.0 °C

7.58E-7 Ω·m

200.0 °C

8.36E-7 Ω·m

300.0 °C

9.07E-7 Ω·m

400.0 °C

9.73E-7 Ω·m

500.0 °C

1.02E-6 Ω·m

600.0 °C

1.06E-6 Ω·m

700.0 °C

1.1E-6 Ω·m

800.0 °C

1.13E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.07 %

Chromium

17 - 19.5 %

Manganese

2 %

Nickel

8 - 10.5 %

Nitrogen

0.1 - 0.11 %

Phosphorus

0.05 %

Silicon

1 %

Sulfur

0.015 %


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