Quality	Standard	Material No.	Possible Surface Coating:
HCT450X	DIN EN 10338	1.0937	+ZE according to DIN EN 10152 (electrolytically galvanized)
HCT450X	DIN EN 10346	1.0937	+Z, +ZF, +ZM, +ZA (Hot-Dip Coating)

Testing direction	Yield point Rp0,2 (MPa)	Tensil Strength Rm (MPa)	Elongation A80 (in %)	Strain Hardening Exponent n 10-UE	Bake-Hardening-Index BH2
longitudinal test spcimen	260 – 340	≥ 450	≥ 27	0,16	30

HCT450X is a cold-rolled dual-phase steel specified according to the DIN EN 10338 standard. This type of steel is particularly known for its excellent combination of strength and formability, making it highly attractive for a wide range of industrial applications, especially in the automotive sector. HCT450X is characterized by a specially developed microstructure that optimizes its mechanical properties, making it a preferred material for many applications.

The production of HCT450X follows a precise process comprising multiple steps. Initially, the steel is hot-rolled and subsequently cooled in a controlled manner to achieve the desired microstructure. This is followed by a cold-rolling process that further refines the fine-grained structure and enhances the steel’s mechanical properties. A final heat treatment ensures that the steel attains an optimal balance between strength and ductility.

In addition to the cold-rolled version, HCT450X is also available in a continuously hot-dip coated variant according to the DIN EN 10346 standard. This variant offers additional advantages, particularly in terms of corrosion resistance. The hot-dip coating process, in which the steel is continuously dipped into a bath of molten zinc or a zinc alloy, forms a protective zinc layer on the steel’s surface. This coating provides excellent corrosion protection, extending the lifespan of components and enhancing their performance in corrosive environments.

HCT450X is widely used in the automotive industry, where the highest demands are placed on material properties. Due to its high strength and good formability, this steel is particularly suitable for manufacturing body components that require high energy absorption in the event of an accident. Examples include door reinforcements, bumpers, and safety cells. The continuously hot-dip coated variant of HCT450X is ideal for applications requiring both mechanical performance and high corrosion protection, such as exterior body panels and underbody components.

The production and application of HCT450X adhere to the strict requirements of the DIN EN 10338 and DIN EN 10346 standards. These standards ensure that the steel meets high quality and performance requirements. Regular testing and inspections throughout the entire production process guarantee that the mechanical properties and corrosion resistance of the steel remain consistently maintained, ensuring its suitability for intended applications.

With the increasing demand for lighter, stronger, and highly formable materials, particularly in the automotive industry, HCT450X is gaining importance. Its ability to maximize the structural integrity of vehicles while reducing weight contributes to the development of more energy-efficient and safer vehicles. The continuous advancement of manufacturing processes and coating technologies will further optimize the properties of dual-phase steels like HCT450X and unlock new application possibilities.

In summary, HCT450X offers an outstanding combination of strength, ductility, and corrosion resistance, making it an essential material for demanding industrial applications. Compliance with the DIN EN 10338 and DIN EN 10346 standards ensures consistently high quality and performance, making it a preferred choice for modern manufacturing processes.