1.4509 / X2CrTiNb18

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Description

The material 1.4509 is a ferritic chrome steel with good corrosion resistance with medium mechanical properties. In contrast to the austenitic stainless steels, this grade has excellent resistance to stress corrosion cracking, which is why it is mainly used in exhaust systems.

Related Standards

Equivalent Materials

This material data has been provided by HSM Stahl- und Metallhandel GmbH.

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

23.0 °C

7.7 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

220 GPa

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Elongation A5

23.0 °C

18 %

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min.

Hardness, Brinell

23.0 °C

200 [-]

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min.

Tensile strength

23.0 °C

420 - 600 MPa

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Yield strength Rp0.2

23.0 °C

200 MPa

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min.

Thermal

PropertyTemperatureValue

Specific heat capacity

23.0 °C

460 J/(kg·K)

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Thermal conductivity

23.0 °C

25 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

23.0 °C

6E-7 Ω·m

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Magnetic

PropertyValue

Magnetic properties

Magnetisation is possible

Chemical properties

PropertyValueComment

Carbon

0.03 %

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max.

Chromium

17.5 - 18.5 %

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Manganese

1 %

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max.

Niobium

0.3 %

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max.

Phosphorus

0.04 %

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max.

Silicon

1 %

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max.

Sulfur

0.015 %

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max.

Titanium

0.1 - 0.6 %

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Technological properties

Property
Application areas

Automotive Industry, Catalysts and exhaust systems, Mechanical Engineering, Plant construction, Chemical & petrochemical, Apparatus and tank construction

Corrosion properties

Excellent stress corrosion cracking resistance

Solution annealing

750-850°C

Welding

TIG welding: satisfactory, MAG Solid wire: satisfactory, Arc welding: satisfactory, UP welding: satisfactory, Laser beam welding: satisfactory, Gas fusion welding: limited. A thermal treatment after welding is recommended.

Workability

Hot forming: 800-1100°C