Quality	Standard	Material No.	Available coatings
DX55D	DIN EN 10346	1.0962	+AS

Quality	Coatings	Testing direction	Yield Point Re (MPa)	Tensil Strength Rm (MPa)	Elongation A80 (in %)
DX55D	+AS	Q	140 – 240	270 – 370	≥ 30

The hot-dip galvanized steel DX55D in accordance with the EN 10346 standard is a specialized material that was developed for particularly demanding cold forming processes. With the material number 1.0962 (formerly 1.0309), this steel belongs to the category of mild steels and is classified as a special deep-drawing grade. DX55D is characterized by its exclusive availability with the +AS (aluminium-silicon) coating type, which offers special protection against high temperatures and corrosive influences. Due to its unique properties, this material is ideal for applications where extreme formability is required in combination with robust, temperature-resistant surface protection.

DX55D is characterized by its extraordinarily high formability, which makes it one of the most efficient deep-drawing steels in its class. As a special deep-drawing grade, it has a very low yield strength and tensile strength, which leads to a particularly good material flow during the forming process. These mechanical properties enable precise and gentle processing, even with the most complex geometries.

The +AS coating – an aluminum-silicon layer – offers excellent resistance to oxidation and heat compared to other zinc-based coatings. This makes DX55D particularly suitable for applications where, in addition to formability, a high temperature load also plays a role, for example in thermally stressed components. The combination of formability and protection makes this steel a reliable material for special requirements in industrial processes.

The DX55D is primarily used in the automotive industry and in other areas of sheet metal processing where the highest demands are placed on formability. Typical applications include heavily deep-drawn car body components, interior trim or formed parts with complex geometries that are also exposed to increased thermal influences. The exclusive use of the +AS coating also allows it to be used in production processes where conventional zinc coatings would reach their thermal limits. DX55D can also exploit its advantages in terms of formability and heat protection in the manufacture of components for household appliances or technical device housings.

The hot-dip galvanized steel DX55D in accordance with EN 10346 is a highly specialized material for demanding deep-drawing processes. With its classification as a special deep-drawing grade, excellent formability and exclusive +AS coating, it offers an ideal solution for applications that place the highest demands on shaping and thermal resistance. The combination of soft-tuned mechanical properties and the heat-resistant aluminum-silicon coating makes DX55D a valuable option for designs where standard deep-drawing steels reach their limits. Companies that depend on reliability, precision and special protection requirements will find DX55D a high-performance partner for modern manufacturing processes.