EN 10216-5 Grade X2NiCrAlTi32-20 solution annealed (+AT)

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Description

Steel X2NiCrAlTi32-20, material number 1.4558 is applicated acc. to VdT_V-material specification 474 : 1984-12 for heat exchanger pipes for use as U-pipes in steam generators for pressurized water reactors (grit size-index acc. to EN 103 at least 7 at the straight pipe) for temperatures from -10 to 400 deg. as per KTA 3201.1 and other examined specifications as well as for pressure vessels acc. to TRB 100 and AD-data sheet W 2 at operating temperatures from -10 to 400 deg. The material can be welded in pipe plates using TIG-automatic welding, TIG-hand welding and metal arc welding. It is cold formable for bending radii of at least 4,5 x outside diameter. Heat treatment is not allowed. The material shows owing to its high Ni-content a very high resistance to stress corrosion. The material is highly resistant against stress corrosion because of the high amount of Ni.Furthermore it is very high resistant in nitric acid and organic acids as well as in aqueous media also at high temperatures. Pitting and crevice corrosion sensitiveness are not high but they are significantly higher than at 1.4539. The material is resistant to intercrystalline corrosion both in delivery and welded condition (at tubes for wall thicknesses up to max. 6 mm). Its limit temperature amounts to 400 deg. (operating time up to 100000 h, no intercrystalline corrosion). 1.4558 is only limited applicable in sulphuric and hydrochlorid acid. The steel is standard material for steam generators and feed water heater in power stations.

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

7.94 - 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 - 195 GPa

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200.0 °C

183 - 188 GPa

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300.0 °C

177 - 182 GPa

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400.0 °C

170 - 175 GPa

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500.0 °C

163 - 168 GPa

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600.0 °C

156 GPa

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700.0 °C

149 GPa

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800.0 °C

141 GPa

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900.0 °C

134 GPa

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1000.0 °C

127 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

450 - 700 MPa

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Tensile strength, transverse

20.0 °C

450 - 700 MPa

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Yield strength Rp0.2

20.0 °C

180 MPa

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50.0 °C

168 MPa

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100.0 °C

155 MPa

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150.0 °C

145 MPa

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200.0 °C

140 MPa

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250.0 °C

135 MPa

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300.0 °C

130 MPa

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350.0 °C

125 MPa

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400.0 °C

120 MPa

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450.0 °C

110 MPa

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500.0 °C

100 MPa

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550.0 °C

90 MPa

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Yield strength Rp0.2, transverse

20.0 °C

180 MPa

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Yield strength Rp1.0

20.0 °C

210 MPa

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50.0 °C

198 MPa

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100.0 °C

185 MPa

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150.0 °C

175 MPa

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200.0 °C

170 MPa

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250.0 °C

165 MPa

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300.0 °C

160 MPa

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350.0 °C

155 MPa

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400.0 °C

150 MPa

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450.0 °C

140 MPa

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500.0 °C

130 MPa

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550.0 °C

120 MPa

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Yield strength Rp1.0, transverse

20.0 °C

210 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 - 1.6E-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

1.6E-5 - 1.62E-5 1/K

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400.0 °C

1.65E-5 - 1.66E-5 1/K

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500.0 °C

1.65E-5 - 1.7E-5 1/K

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600.0 °C

1.74E-5 1/K

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700.0 °C

1.77E-5 1/K

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800.0 °C

1.8E-5 1/K

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900.0 °C

1.83E-5 1/K

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1000.0 °C

1.86E-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 - 475 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

0.15 - 0.45 %

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Carbon

0.03 %

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Chromium

20 - 23 %

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Manganese

1 %

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Nickel

32 - 35 %

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Phosphorus

0.02 %

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Silicon

0.7 %

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Sulfur

0.015 %

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Titanium

0.6 %

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