EN 10265 Grade 550-250-TG 178

Alternative and trade names
Usinalter 550
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Description

This Hot rolled pole sheet grade is classified according to their yield strength (EN 10265:1995). As well as guaranteed mechanical properties, they have guaranteed magnetic properties, but unlike other electrical steel grades, its magnetic characterisation is determined under direct current (DC) conditions.

High yield strength values allow this grade to withstand strong centrifugal and electromechanical forces, both in static and dynamic conditions. The DC magnetic properties are excellent and significantly superior to the requirements of the standard. For the hot rolled pole sheets with yield strength guarantee up to 400 MPa the flatness guarantee is maintained after laser cutting of the laminations. For the hot rolled pole sheets with yield strength guarantee beyond 400 MPa the flatness remains excellent, even after laser cutting of the laminations.

Related Standards

This material data has been provided by ArcelorMittal.

"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.

Ashby charts

Properties

Mechanical

PropertyValueComment

Elongation

12 %

Show Supplier Material materials with Elongation of 12 %

min. | for thickness 2.5 mm | Transverse/Longitudinal | A80

Tensile strength

650 - 850 MPa

Show Supplier Material materials with Tensile strength of 650 - 850 MPa

for thickness 2.5 mm | Transverse/Longitudinal

Yield strength

550 MPa

Show Supplier Material materials with Yield strength of 550 MPa

min. | for thickness 2.5 mm | Transverse/Longitudinal

Magnetic

PropertyValueComment

Guaranteed polarization

1.52 [-]

Show Supplier Material materials with Guaranteed polarization of 1.52 [-]

min. | in DC at 5000 A/m

1.78 [-]

Show Supplier Material materials with Guaranteed polarization of 1.78 [-]

min. | in DC at 15000 A/m

Technological properties

Property
Application areas

Hot rolled pole sheet grade can be supplied in the form of coils or sheets. It is designed for large high-speed machines because of their excellent combination of mechanical strength and good magnetic performance. Good magnetic properties are of major importance for the performance of the poles, whereas excellent mechanical properties are needed for the rims.

Coating

Hot rolled pole sheet grade is available non-insulated. It can be supplied with the hot rolled oxide layer or pickled. When pickled, they are protected with Easyfilm® dry coating, which offers protection against atmospheric corrosion for a period of three months

Other

These properties are obtained without heat treatment, whatever be the mechanical or thermal cutting process used to obtain the desired lamination diameter. The material as supplied possesses all the required magnetic properties.


Dimensions:



Mill finishSide trimmed*
Min widthMax widthMin widthMax width
550-250-TG 17867512555951175
Please contact us for other dimensions.
*Smaller widths are available after slitting.