Quality	Standard	Material No.	Possible Surface Coating:
HC420LA, HC420LA+ZE	DIN EN 10268	1.0556	+ZE according to DIN EN 10152

Testing direction	Yield Point Re (MPa)	Tensil Strength Rm (MPa)	Elongation A80 (in %)
Q	420 – 520	470 – 600	≥ 17
L	390 – 500	460 – 580	≥ 18

HC420LA steel in accordance with the DIN EN 10268 standard is a cold-rolled micro-alloyed steel that is widely used in various industrial applications. This alloy is characterized by its specific mechanical properties, which are achieved by a precise coordination and dosage of alloying elements.

The composition of HC420LA steel typically includes alloying elements such as niobium (Nb), titanium (Ti) and vanadium (V). These elements are added in specific concentrations to improve the mechanical properties of the steel, in particular the yield strength and tensile strength. The micro-alloyed structure of the steel makes it possible to use strengthening mechanisms such as precipitation hardening and grain refinement to achieve high strength combined with good formability.

A decisive advantage of HC420LA steel is its improved weldability. The special alloy composition helps to minimize the formation of welding defects and increase the strength of welded joints. This is particularly important for applications in which welded joints play a critical role, such as in vehicle construction or the building industry.

In addition, the HC420LA steel offers an excellent combination of impact and fatigue resistance. The micro-alloyed structure of the steel helps to reduce cracking and fracture during operation, which increases its reliability and service life. These properties are particularly important in applications where the steel is exposed to repeated loads or where impact stresses may occur.

HC420LA steel has a wide range of applications in industries such as automotive, construction, mechanical engineering and others. Its outstanding mechanical properties make it a preferred material for demanding applications where a combination of high strength, formability and resistance to impact and fatigue loads is required.

In summary, HC420LA steel is a high-quality material with excellent mechanical properties in accordance with the DIN EN 10268 standard. Its alloy composition and micro-alloyed structure make it an important building block in the metalworking industry and contribute to the improvement of products and processes in various sectors.

The cold-rolled micro-alloyed HC420LA steel is a technological masterpiece in the metalworking industry. An important technical property of this high-quality material is its ability to be electrolytically galvanized, which considerably expands its application possibilities and performance. Electrolytic galvanizing gives the HC420LA steel a uniform zinc coating, which not only improves its corrosion resistance but also extends its service life. This innovative property opens up exciting prospects for the use of HC420LA steel in a wide range of industrial applications where both strength and protection against corrosion are crucial. With its outstanding performance and the possibility of electrolytic galvanizing, HC420LA steel contributes significantly to progressiveness and efficiency in the metalworking industry.

Characteristic overlay factor	Nominal zinc coating per side Thickness µm	Nominal zinc coating per side Mass g/m²	Minimum value per side Thickness µm	Minimum value per page Mass g/m²
ZE25/25	2,5	18	1,7	12
ZE50/50	5,5	36	4,1	29
ZE75/75	7,5	54	6,6	47
ZE100/100	10,0	72	9,1	65

Code letters	Type of surface treatment
P	phosphated
PC	Phosphated and chemically treated
C	chemically passivated
PCO	Phosphated, chemically treated and oiled
CO	Chemically passivated and oiled
PO	Phosphated and oiled
O	oiled
S	sealed
U	galvanized, without surface treatment