DIN 17440 Grade X2CrNiMo17-12-2 quenched (+Q)

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Description

The material X2CrNiMo17-12-2, mat. no. 1.4404, is an modification of the X5CrNiMo17-12-2 (1.4401). It shows high corrosion resistance, also because of the lower C-content, to not oxidising acids and chloride containing media, is high polishable and very good cold formable. According DIN 17440 : 1996-09 the material is used for flat products and rods (for pressure vessels), forgings and wires, acc. DIN 17441 : 1997-02 for cold rolled sheet and slit strip for pressure vessels. With the lower C-content the steel has an higher resistance to intercrystalline corrosion, both in the delivery condition and in the welded condition. The limiting temperature (operating time up to 100000 h no intercrystalline corrosion) amounts to 400 degrees C. According to DIN 17440 : 1985-07 (X 2 CrNiMo 17 13 2) resp. DIN EN 10088-1,-2,-3 : 1995-08 applies: application in the chemical apparatus construction and the cellulose industry, textile industry, pharmaceutical industry and in sewage plants.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

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

PropertyTemperatureValue

Density

20.0 °C

7.96 - 7.98 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

206 GPa

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20.0 °C

196 - 200 GPa

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100.0 °C

190 - 194 GPa

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200.0 °C

182 - 186 GPa

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300.0 °C

174 - 179 GPa

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400.0 °C

166 - 172 GPa

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500.0 °C

158 - 165 GPa

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600.0 °C

150 GPa

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700.0 °C

142 GPa

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800.0 °C

134 GPa

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900.0 °C

127 GPa

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1000.0 °C

120 GPa

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Elongation

20.0 °C

40 %

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Elongation A80

20.0 °C

35 %

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Elongation A80, transverse

20.0 °C

40 %

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Elongation, transverse

20.0 °C

30 %

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Austenitic Stainless Steel

Shear modulus

23.0 °C

77 GPa

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Typical for Austenitic Stainless Steel

Tensile strength

20.0 °C

490 - 690 MPa

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Tensile strength, transverse

20.0 °C

490 - 690 MPa

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Yield strength Rp0.2

20.0 °C

190 MPa

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50.0 °C

182 MPa

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100.0 °C

166 MPa

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150.0 °C

152 MPa

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200.0 °C

137 MPa

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250.0 °C

127 MPa

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300.0 °C

118 MPa

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350.0 °C

113 MPa

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400.0 °C

108 MPa

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450.0 °C

103 MPa

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500.0 °C

100 MPa

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550.0 °C

98 MPa

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Yield strength Rp0.2, transverse

20.0 °C

190 MPa

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Yield strength Rp1.0

20.0 °C

225 MPa

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50.0 °C

217 MPa

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100.0 °C

199 MPa

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150.0 °C

181 MPa

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200.0 °C

167 MPa

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250.0 °C

157 MPa

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300.0 °C

145 MPa

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350.0 °C

139 MPa

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400.0 °C

135 MPa

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450.0 °C

130 MPa

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500.0 °C

128 MPa

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550.0 °C

127 MPa

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Yield strength Rp1.0, transverse

20.0 °C

225 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.49E-5 1/K

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20.0 °C

1.61E-5 1/K

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100.0 °C

1.65E-5 - 1.67E-5 1/K

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200.0 °C

1.72E-5 - 1.75E-5 1/K

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300.0 °C

1.75E-5 - 1.77E-5 1/K

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400.0 °C

1.81E-5 - 1.85E-5 1/K

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500.0 °C

1.84E-5 - 1.85E-5 1/K

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600.0 °C

1.88E-5 1/K

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700.0 °C

1.91E-5 1/K

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800.0 °C

1.94E-5 1/K

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900.0 °C

1.97E-5 1/K

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1000.0 °C

2E-5 1/K

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Melting point

1230 - 1480 °C

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Typical for Austenitic Stainless Steel

Specific heat capacity

-100.0 °C

440 J/(kg·K)

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20.0 °C

472 - 500 J/(kg·K)

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100.0 °C

487 J/(kg·K)

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200.0 °C

503 J/(kg·K)

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300.0 °C

512 J/(kg·K)

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400.0 °C

520 J/(kg·K)

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500.0 °C

530 J/(kg·K)

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600.0 °C

541 J/(kg·K)

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700.0 °C

551 J/(kg·K)

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800.0 °C

559 J/(kg·K)

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900.0 °C

565 J/(kg·K)

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1000.0 °C

571 J/(kg·K)

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Thermal conductivity

20.0 °C

13.3 - 15 W/(m·K)

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100.0 °C

14.9 W/(m·K)

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200.0 °C

16.5 W/(m·K)

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300.0 °C

18.1 W/(m·K)

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400.0 °C

19.5 W/(m·K)

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500.0 °C

21 W/(m·K)

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600.0 °C

22.4 W/(m·K)

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700.0 °C

23.8 W/(m·K)

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800.0 °C

25.2 W/(m·K)

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Thermal diffusivity

20.0 °C

3.5 mm²/s

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100.0 °C

3.8 mm²/s

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200.0 °C

4 mm²/s

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300.0 °C

4.3 mm²/s

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400.0 °C

4.5 mm²/s

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500.0 °C

4.7 mm²/s

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600.0 °C

4.8 mm²/s

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700.0 °C

5.1 mm²/s

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800.0 °C

5.4 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

7.5E-7 - 7.91E-7 Ω·m

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100.0 °C

8.45E-7 Ω·m

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200.0 °C

9.19E-7 Ω·m

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300.0 °C

9.77E-7 Ω·m

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400.0 °C

1.03E-6 Ω·m

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500.0 °C

1.08E-6 Ω·m

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600.0 °C

1.12E-6 Ω·m

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700.0 °C

1.15E-6 Ω·m

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800.0 °C

1.18E-6 Ω·m

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Chemical properties

PropertyValue

Carbon

0.03 %

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Chromium

16.5 - 18.5 %

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Manganese

2 %

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Molybdenum

2 - 2.5 %

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Nickel

10 - 13 %

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Nitrogen

0.11 %

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Phosphorus

0.05 %

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Silicon

1 %

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Sulfur

0.015 %

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