DX53D Comparison with DX51D and DX54D — How to Choose the Right Galvanized Steel Grade

 

The hot-dip galvanized steel DX53D in accordance with standard 10346 is a modern material that has been specially developed for demanding cold forming processes. With the material number 1.0951 (formerly 1.0355), this steel belongs to the soft steels and is classified as a deep-drawing grade. The integrated hot-dip galvanizing process applies a durable zinc coating that provides reliable corrosion protection and makes the steel resistant even under adverse environmental conditions. In addition, the wide range of coating variants – +Z, +ZF, +ZA, +ZM, +AZ and +AS – ensure individual adaptation to specific requirements in different manufacturing processes.

 

	C (%)		P (%)	S (%)
DX51D	<=0.12	<=0.60	<=0.10	<=0.045	>=0.015
DX53D	<=0.08	<=0.45	<=0.030	<=0.025	>=0.015
DX54D	<=0.06	<=0.40	<=0.025	<=0.020	>=0.015

Lower carbon and impurity levels directly improve ductility, surface stability, and coating adhesion.

 

 

	DX51D	DX53D	DX54D
	<=260	140–220	120–200
	270–410	270–350	260–340
	>=22	>=36	>=38
r-value	>=1.2	>=1.6	>=1.8

 

 

In direct comparison with the related materials in the series, the DX53D is particularly well-balanced. While the DX51D is typically used as a machine folding grade and is primarily designed for general cold forming applications, the focus of the DX53D is on optimizing deep drawing processes. This special focus enables superior formability and precision in complex forming processes.

 

The DX54D, on the other hand, has a lower yield strength and tensile strength. These mechanical properties make it even easier to form, which in some cases can lead to improved processability. However, this higher flexibility also has a disadvantage: the lower strength values tend to result in a lower load-bearing capacity of the components, which means that applications with high load requirements are less suitable. The DX54D is therefore particularly suitable for applications in which extremely high formability is paramount and lower mechanical stresses can be tolerated. In comparison, the DX53D offers a good balance between good formability and a higher mechanical load capacity – a decisive advantage for demanding deep drawing processes.

 

0.30 – 3.00	600 – 1500	1000 – 6000	Z60 – Z275

 

DX51D is suitable for basic bending and simple stamped parts.
DX53D supports deep cavities, multi-stage forming, and complex geometry with excellent surface quality.
DX54D offers the highest drawability but requires tighter process control and comes at higher cost.

 

 

	DX51D	DX53D	DX54D
	✔️	✔️	⚠️
	✔️	✔️	✔️
	⚠️	✔️	✔️
	❌	✔️	✔️
	⚠️	✔️	✔️

 

 

DX51D Z/DC51D Z (CR)		DX51D Z
DX52D Z/DC52D Z	SGCD1	DX52D With
DX53D Z/DC53D Z/DX54D Z/DC54D Z	SGCD2/SGCD3	DX53D Z/DX54D Z
S220/250/280/320/350/550GD Z	SGC340/400/440/490/570	S220/250/280/320/350GD Z
DX51D Z/DD51D Z (HR)		DX51D Z