EN 10028-7 Grade X5NiCrAlTi31-20 solution annealed (+AT)

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Description

The austenitic steel X5NiCrAlTi31-20+RA (recrystallisation annealed) is a heat resistant material. The material is resistant to intercrystalline corrosion, not in the sensitized condition. Application: in pressure vessel and steam-boiler construction as well as in chemical and petrochemical industry

Related Standards

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

7.94 - 8 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

201 GPa

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20.0 °C

194 - 200 GPa

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100.0 °C

189 - 190 GPa

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200.0 °C

183 - 185 GPa

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300.0 °C

175 - 177 GPa

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400.0 °C

170 GPa

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500.0 °C

160 - 163 GPa

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600.0 °C

155 - 156 GPa

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700.0 °C

145 - 149 GPa

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800.0 °C

140 - 141 GPa

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900.0 °C

134 - 135 GPa

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1000.0 °C

125 - 127 GPa

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Elongation A80, transverse

20.0 °C

30 %

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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

500 - 750 MPa

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50.0 °C

487 MPa

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100.0 °C

465 MPa

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150.0 °C

445 MPa

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200.0 °C

435 MPa

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250.0 °C

425 MPa

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300.0 °C

420 MPa

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350.0 °C

418 MPa

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400.0 °C

415 MPa

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450.0 °C

415 MPa

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500.0 °C

415 MPa

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Tensile strength, transverse

20.0 °C

500 - 750 MPa

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Yield strength Rp0.2

50.0 °C

159 MPa

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100.0 °C

140 MPa

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150.0 °C

127 MPa

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200.0 °C

115 MPa

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250.0 °C

105 MPa

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300.0 °C

95 MPa

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350.0 °C

90 MPa

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400.0 °C

85 MPa

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450.0 °C

82 MPa

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500.0 °C

80 MPa

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550.0 °C

75 MPa

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600.0 °C

75 MPa

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Yield strength Rp0.2, transverse

20.0 °C

170 - 210 MPa

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Yield strength Rp1.0

50.0 °C

185 MPa

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100.0 °C

160 MPa

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150.0 °C

147 MPa

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200.0 °C

135 MPa

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250.0 °C

125 MPa

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300.0 °C

115 MPa

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350.0 °C

110 MPa

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400.0 °C

105 MPa

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450.0 °C

102 MPa

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500.0 °C

100 MPa

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550.0 °C

95 MPa

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600.0 °C

95 MPa

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Yield strength Rp1.0, transverse

20.0 °C

200 - 240 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.36E-5 1/K

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20.0 °C

1.46E-5 1/K

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100.0 °C

1.51E-5 - 1.54E-5 1/K

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200.0 °C

1.57E-5 - 1.6E-5 1/K

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300.0 °C

1.62E-5 - 1.65E-5 1/K

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400.0 °C

1.66E-5 - 1.68E-5 1/K

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500.0 °C

1.7E-5 - 1.72E-5 1/K

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600.0 °C

1.74E-5 - 1.75E-5 1/K

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700.0 °C

1.77E-5 - 1.79E-5 1/K

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800.0 °C

1.8E-5 - 1.83E-5 1/K

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900.0 °C

1.83E-5 - 1.86E-5 1/K

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1000.0 °C

1.86E-5 - 1.9E-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

460 - 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

11.5 - 12 W/(m·K)

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100.0 °C

13.1 W/(m·K)

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200.0 °C

14.8 W/(m·K)

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300.0 °C

16.4 W/(m·K)

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400.0 °C

18.1 W/(m·K)

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500.0 °C

19.6 W/(m·K)

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600.0 °C

21.2 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

27.3 W/(m·K)

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Thermal diffusivity

20.0 °C

3.1 mm²/s

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100.0 °C

3.3 mm²/s

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200.0 °C

3.6 mm²/s

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300.0 °C

3.9 mm²/s

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400.0 °C

4.2 mm²/s

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500.0 °C

4.4 mm²/s

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600.0 °C

4.6 mm²/s

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700.0 °C

4.9 mm²/s

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800.0 °C

5.2 mm²/s

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900.0 °C

5.5 mm²/s

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1000.0 °C

5.7 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

9.9E-7 - 1.01E-6 Ω·m

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100.0 °C

1.04E-6 Ω·m

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200.0 °C

1.08E-6 Ω·m

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300.0 °C

1.12E-6 Ω·m

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400.0 °C

1.15E-6 Ω·m

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500.0 °C

1.18E-6 Ω·m

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600.0 °C

1.2E-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

1.27E-6 Ω·m

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Chemical properties

PropertyValue

Aluminium

0.2 - 0.5 %

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Carbon

0.03 - 0.08 %

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Chromium

19 - 22 %

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Cobalt

0.5 %

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Copper

0.5 %

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Manganese

1.5 %

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Nickel

30 - 32.5 %

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Niobium

0.1 %

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Nitrogen

0.03 %

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Phosphorus

0.02 %

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Silicon

0.7 %

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Sulfur

0.01 %

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Titanium

0.2 - 0.5 %

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