EN 10088-1 Grade X3CrNb17 soft annealed (+A)

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Description

Material X 8 CrNb 17 (X3CrNb17), mat. number 1.4511 is acc. to VdTÜV-Wbl 422 : 2001-06 used for design certificated pocket boilers and helical tubes for boilers of the Viessmann Werke KG, Allendorf, with a max. material temperature of 200 °C. To the material acc. to DIN EN 10088-1 : 1995-08 applies: trademark X3CrNb17 is comparable to X 6 CrNb 17 nach DIN 17441 : 1985-07 (here higher C-content!). This material is a ferritic steel with the same corrosion properties as 1.4510. It shows increased stress corrosion resistance in bases and low chloride containing water. It is largely resistant in water, steam, weak acids and bases as well as in oxidizing acids. Resistance to intercrystalline corrosion both in delivery and welded condition. The steel is suitable for mirror finishing. Application for welded components in washing machines (alkaline tank) and in chemical apparatus engineering (weak acids), in dairy, food, brewery, dyeing and soap industry. In construction trade X3CrNb17 is used for decorative components to be welded in interior design, such as racks, frames, interior decoration elements. A metallic clean surface is a basic requirement for good corrosion resistance.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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

7.56 - 7.7 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

218 - 220 GPa

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100.0 °C

213 - 215 GPa

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200.0 °C

206 - 210 GPa

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300.0 °C

198 - 205 GPa

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400.0 °C

190 - 195 GPa

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500.0 °C

180 GPa

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600.0 °C

167 GPa

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700.0 °C

150 GPa

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Elongation

20.0 °C

8 - 23 %

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Elongation A80

20.0 °C

23 %

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Elongation A80, transverse

20.0 °C

23 %

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Elongation, transverse

20.0 °C

23 %

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Hardness, Brinell

20.0 °C

200 [-]

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Hardness, Brinell, trans

20.0 °C

200 [-]

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Ferritic Stainless Steel

Shear modulus

23.0 °C

77 GPa

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Typical for Ferritic Stainless Steel

Tensile strength

20.0 °C

400 - 950 MPa

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Tensile strength, transverse

20.0 °C

420 - 620 MPa

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Yield strength Rp0.2

20.0 °C

200 - 320 MPa

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100.0 °C

190 - 230 MPa

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150.0 °C

180 - 220 MPa

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200.0 °C

170 - 205 MPa

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250.0 °C

160 - 190 MPa

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300.0 °C

155 - 180 MPa

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350.0 °C

165 MPa

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Yield strength Rp0.2, transverse

20.0 °C

200 - 240 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

20.0 °C

9.9E-6 1/K

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100.0 °C

1E-5 - 1.03E-5 1/K

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200.0 °C

1E-5 - 1.08E-5 1/K

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300.0 °C

1.05E-5 - 1.12E-5 1/K

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400.0 °C

1.05E-5 - 1.16E-5 1/K

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500.0 °C

1.1E-5 - 1.19E-5 1/K

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600.0 °C

1.21E-5 1/K

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700.0 °C

1.24E-5 1/K

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800.0 °C

1.29E-5 1/K

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Max service temperature, long

0 - 200 °C

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Melting point

1425 - 1530 °C

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Typical for Ferritic Stainless Steel

Specific heat capacity

20.0 °C

450 - 460 J/(kg·K)

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100.0 °C

482 J/(kg·K)

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200.0 °C

506 J/(kg·K)

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300.0 °C

525 J/(kg·K)

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400.0 °C

547 J/(kg·K)

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500.0 °C

576 J/(kg·K)

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600.0 °C

616 J/(kg·K)

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Thermal conductivity

20.0 °C

16 - 25 W/(m·K)

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100.0 °C

17.2 W/(m·K)

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200.0 °C

18.6 W/(m·K)

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300.0 °C

20 W/(m·K)

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400.0 °C

21.2 W/(m·K)

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500.0 °C

22.3 W/(m·K)

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600.0 °C

23.3 W/(m·K)

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700.0 °C

24.1 W/(m·K)

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800.0 °C

25.5 W/(m·K)

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900.0 °C

26.9 W/(m·K)

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1000.0 °C

28.3 W/(m·K)

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Thermal diffusivity

20.0 °C

4.7 mm²/s

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100.0 °C

4.5 mm²/s

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200.0 °C

4.5 mm²/s

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300.0 °C

4.6 mm²/s

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400.0 °C

4.4 mm²/s

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500.0 °C

4.1 mm²/s

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600.0 °C

3.6 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

6E-7 - 9.06E-7 Ω·m

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100.0 °C

9.42E-7 Ω·m

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200.0 °C

9.87E-7 Ω·m

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300.0 °C

1.03E-6 Ω·m

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400.0 °C

1.08E-6 Ω·m

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500.0 °C

1.12E-6 Ω·m

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600.0 °C

1.18E-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

Carbon

0.05 %

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Chromium

16 - 18 %

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Manganese

1 %

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Niobium

1 %

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Phosphorus

0.04 %

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Silicon

1 %

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Sulfur

0.015 %

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