1.0571 (P355QH1) | 1.0566 TSTE 355 | 1.8868 (P355QL1)

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1.0566 TSTE 355 | 1.0571 (P355QH1) | 1.8868 (P355QL1) Material Data Sheet

International identifiers

1.0566 TSTE 355 | 1.0571 (P355QH1) | 1.8868 (P355QL1) belongs to the fine grain steels and has a very good weldability and a good cold toughness.

The minimum Yield strength is 275 - 460 MPa.

The 1.0566 TSTE 355 | 1.0571 (P355QH1) | 1.8868 (P355QL1) is recommended If high demands are made on notch impact strength and aging resistance. It is mainly used in steam boiler and pressure vessel construction.



Due to its good mechanical properties, TSTE 355 is used in plant and apparatus construction, in mechanical engineering and in chemistry and energy technology.


Applications areas:

In the pressure vessel construction the 1.0566 TSTE 355 | 1.0571 (P355QH1) | 1.8868 (P355QL1) is used for the production of steam boiler parts, compressed gas tanks and penstocks.

[Translate to Englisch:] 1.0571 Werkstoffdatenblatt Download

Weldabilityvery good
Corrosion resistancenot corrosion resistant
Magnetizabilityis present


Welding: TSTE 355 can be processed with all known welding methods. Welding is possible both with the machine and by hand. Preheating is usually not necessary unless the outside temperature is below 5°C. Then preheating to about 150°C is recommended.


Cold formingis possible
Hot formingis possible

Physical Properties:

Density in kg/dm37,85


Special features:

With a degree of deformation of 4.5, the TSTE 355 is resistant to brittle fracture.

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Chemical composition
min.  0,90     0,02
In stock

Flat steel, forged, tempered

Advantages of saw cut

The processing with the saw is a mechanical processing of the material, which results in a significantly lower unintended deformation and increased hardness for the existing structure, such as the thermal cutting.

Thus, the machined workpiece has a homogeneous structure even at the edge, which does not change in the continuation of the material.
This circumstance allows immediate finishing of the workpiece with milling or drilling . So it is not necessary to anneal the material or make a similar operation beforehand.

Do you have any questions?

We are happy to answer your questions and make you an offer for these and other materials. Contact us now for more information.

Andreas Blachowiak

Your contact person Andreas Blachowiak+49 (0) 35263-665-37

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Notice: Specifications contained in following data sheet are provided as a description, liability is excluded!