EN 10216-5 Grade X1NiCrMoCuN25-20-7 solution annealed (+AT)

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Description

Steel X1NiCrMoCuN25-20-7 (acc. to VdT_V-material specification 502 : 2001-06: X 1 NiCrMoCuN 25 20 6 ), material number 1.4529, is used acc. to VdT_V-Wbl 502 : 2001-06 for pressure vessels as per TRB 100 and AD-data sheet W 2 from -10 (and AD-data sheet W 10 for the form of manufacture sheet and Krupp-VDM-sectional and bar steel/forged parts from -196 deg.) to 400 deg. as well as in nuclear power engineering as far as nuclear rules or object-related specifications permit application for pressure vessels. The weldability is given for the metal-arc welding and gas-shielded welding. Preheating is not necessary. The intermediate layer temperature should not exceed 120 deg. Heat treatment (solution annealing and quenching) after the welding only in special cases necessary (special corrosion stress). As filler materials following metals are recommended: e.g. 2.4621 (EL-NiCr21Mo9Nb), 2.4831 (SG-NiCr21Mo9Nb), 2.4607 (SG-NiCr23Mo16 and 2.4611 (SG-NiMo16Cr16Ti). The two last-mentioned should preferred because of their corrosion properties. The material is cold and hot formable. To the material acc. to DIN EN 10216-5 : 2004-11 applies: X1NiCrMoCuN25-20-7 is the stronger Mo-alloyed variant of 1.4539. The steel shows a very high resistance to crevice corrosion, pitting corrosion as well as to stress corrosion caused by pitting corrosion. It has the highest steel pitting index. The material is resistant to intercrystalline corrosion, also in welded condition. Application in higher chloride contaminated media, such as in sulphuric and phosphoric acid as well as in offshore facilities. The steel is cold and warm formable. After cold forming at deformation degrees > 15 % as well as after warm forming has to be carried out a heat treatment (solution annealing at 1100 to 1180, quenching in water).

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

7.76 - 8.1 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

206 GPa

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20.0 °C

195 - 196 GPa

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100.0 °C

190 GPa

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200.0 °C

182 GPa

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300.0 °C

174 GPa

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400.0 °C

166 GPa

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500.0 °C

158 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

35 %

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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

600 - 800 MPa

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Tensile strength, transverse

20.0 °C

600 - 800 MPa

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Yield strength Rp0.2

20.0 °C

270 MPa

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50.0 °C

254 MPa

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100.0 °C

230 MPa

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150.0 °C

210 MPa

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200.0 °C

190 MPa

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250.0 °C

180 MPa

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300.0 °C

170 MPa

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350.0 °C

165 MPa

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400.0 °C

160 MPa

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Yield strength Rp0.2, transverse

20.0 °C

270 MPa

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Yield strength Rp1.0

20.0 °C

310 MPa

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50.0 °C

296 MPa

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100.0 °C

270 MPa

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150.0 °C

245 MPa

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200.0 °C

225 MPa

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250.0 °C

215 MPa

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300.0 °C

205 MPa

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350.0 °C

195 MPa

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400.0 °C

190 MPa

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Yield strength Rp1.0, transverse

20.0 °C

310 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

1.58E-5 - 1.67E-5 1/K

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200.0 °C

1.61E-5 - 1.72E-5 1/K

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300.0 °C

1.65E-5 - 1.77E-5 1/K

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400.0 °C

1.69E-5 - 1.81E-5 1/K

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500.0 °C

1.73E-5 - 1.84E-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

450 - 472 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

11.9 - 12 W/(m·K)

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100.0 °C

13.3 W/(m·K)

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200.0 °C

15.1 W/(m·K)

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300.0 °C

16.7 W/(m·K)

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400.0 °C

18.3 W/(m·K)

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500.0 °C

19.8 W/(m·K)

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600.0 °C

21.3 W/(m·K)

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700.0 °C

22.8 W/(m·K)

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800.0 °C

24.3 W/(m·K)

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900.0 °C

25.7 W/(m·K)

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1000.0 °C

27.1 W/(m·K)

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Thermal diffusivity

20.0 °C

3.3 mm²/s

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100.0 °C

3.4 mm²/s

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200.0 °C

3.7 mm²/s

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300.0 °C

4.1 mm²/s

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400.0 °C

4.3 mm²/s

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500.0 °C

4.5 mm²/s

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600.0 °C

4.7 mm²/s

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700.0 °C

5 mm²/s

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800.0 °C

5.4 mm²/s

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900.0 °C

5.7 mm²/s

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1000.0 °C

5.8 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

9.59E-7 - 1E-6 Ω·m

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100.0 °C

1.01E-6 Ω·m

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200.0 °C

1.05E-6 Ω·m

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300.0 °C

1.1E-6 Ω·m

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400.0 °C

1.13E-6 Ω·m

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500.0 °C

1.17E-6 Ω·m

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600.0 °C

1.19E-6 Ω·m

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700.0 °C

1.22E-6 Ω·m

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800.0 °C

1.24E-6 Ω·m

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900.0 °C

1.26E-6 Ω·m

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1000.0 °C

1.28E-6 Ω·m

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Chemical properties

PropertyValue

Carbon

0.02 %

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Chromium

19 - 21 %

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Copper

0.5 - 1.5 %

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Manganese

1 %

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Molybdenum

6 - 7 %

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Nickel

24 - 26 %

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Nitrogen

0.15 - 0.25 %

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Phosphorus

0.03 %

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Silicon

0.5 %

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Sulfur

0.01 %

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