EN 10326 Grade S550GD cold rolled

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Description

The structural steel (non-alloy high-grade steel) S550GD is deliverable with following hot-dip coatings: S550GD+Z (coating Zn), S550GD+ZF (coating Zn-Fe), S550GD+ZA (coating Zn-Al), S550GD+AZ (coating Al-Zn). The coating mass for Z amounts to 100, 140, 200, (225), 275, 350*, (450)* and (600)* g/m², for ZF to 100 and 140** g/m², for ZA to 95, 130, 185, 200, 255 and 300* g/m², for AZ it amounts to 100, 150 and 185 g/m². The parenthesis values are deliverable after arrangement the values are in each case both side minimum values (three-faced specimen). The * marked values are not deliverable for the surface types B and C and the ** marked values are not deliverable for the surface type C (see also DIN EN 10326). The advantages in opposite to the hot-dip galvanising are: - higher corrosion resistance - excellent forming behaviour - low crack susceptibility of the coating The material has a min. yield point of 550 N/mm² and is used for construction parts with high strength and high corrosion resistance. The coated steel is weldable with the usual methods. Furthermore are given the adhesive suitability and the coatability with organic materials, in each case after a previous suitable surface treatment. Application: household appliances industry, construction industry, furniture industry, electrical engineering, automotive engineering

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

PropertyTemperatureValueComment

Density

23.0 °C

7.8 - 7.9 g/cm³

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Typical for Low Carbon Steel

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

200 - 215 GPa

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Typical for Low Carbon Steel

Poisson's ratio

23.0 °C

0.29 [-]

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Typical for Low Carbon Steel

Shear modulus

23.0 °C

82 GPa

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Typical for Low Carbon Steel

Tensile strength

20.0 °C

560 MPa

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Yield strength Rp0.2

20.0 °C

550 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

1.32E-5 - 1.38E-5 1/K

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Typical for Low Carbon Steel

Max service temperature

500 °C

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Typical for Carbon Steel

Melting point

1480 - 1526 °C

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Typical for Low Carbon Steel

Specific heat capacity

23.0 °C

465 J/(kg·K)

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Typical for Low Carbon Steel

Thermal conductivity

23.0 °C

25 - 93 W/(m·K)

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Typical for Low Carbon Steel

Electrical

PropertyTemperatureValueComment

Electrical resistivity

23.0 °C

1.43E-7 - 1.74E-7 Ω·m

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Typical for Carbon Steel

Magnetic

PropertyValueComment

Curie temperature

770 °C

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Typical for Low Carbon Steel

Chemical properties

PropertyValue

Carbon

0.2 %

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Manganese

1.7 %

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Phosphorus

0.1 %

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Silicon

0.6 %

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Sulfur

0.045 %

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