Quality | Standard | Material No. | Possible type of hot-dip coating |
---|---|---|---|
HDT760C | DIN EN 10338 | 1.0998 | |
HDT760C | DIN EN 10346 | 1.0998 | +Z, +ZF, +ZM |
Testing direction | Yield point Rp0,2 (MPa) | Tensil Strength Rm (MPa) | Elongation A80 (in %) | A5 (in %) ≥ 3 mm |
---|---|---|---|---|
L | 660 – 830 | ≥ 760 | ≥ 10 | ≥ 12 |
C % | Si % | Mn % | P % | S % | Altotal % | Cr + Mo % | Nb + Ti % | V % | B % |
---|---|---|---|---|---|---|---|---|---|
≤ 0,18 | ≤ 1,00 | ≤ 2,50 | ≤ 0,080 | ≤ 0,015 | 0,015 – 2,0 | ≤ 1,00 | ≤ 0,25 | ≤ 0,20 | ≤ 0,005 |
An overview for HDT760C
HDT760C is a highly developed hot-rolled complex-phase steel that is specified in accordance with the DIN EN 10338 and DIN EN 10346 standards. This type of steel is characterized by a particularly balanced combination of high strength and good formability, which makes it ideal for demanding industrial applications, especially in the automotive industry. The complex microstructure of HDT760C, which comprises a mixture of ferrite, bainite and possibly martensite, tempered martensite, retained austenite and pearlite, gives it its outstanding mechanical properties.
Features and benefits,
HDT760C offers exceptional tensile strength and high ductility at the same time. These properties result from the special microstructure in which the different phases are optimally coordinated. Ferrite ensures good formability, while bainite and any martensite present increase strength and hardness. This combination makes it possible to produce components that are both strong and malleable, which is particularly advantageous for safety-relevant components such as vehicle bodies.
Another key advantage of HDT760C is its good weldability, which facilitates its processing in various manufacturing processes. This is particularly important for the automotive industry, where complex components are often joined by welding processes. This steel is also characterized by its high resistance to cracking and good energy absorption in the event of accidents.
Continuous hot-dip coated variant
The continuously hot-dip coated variant of HDT760C, which is specified in accordance with the DIN EN 10346 standard, offers additional corrosion protection. The hot-dip process applies a layer of zinc to the steel, which acts as a barrier against environmental influences and significantly extends the service life of the material. This zinc layer protects the steel from moisture and other corrosive elements, which is particularly important for outdoor applications and in aggressive environments.
Complex-phase steel (CP)
Complex-phase steels such as HDT760C have a microstructure consisting mainly of ferrite and bainite, although martensite, tempered martensite, retained austenite and pearlite may be present as additional phases. This multiphase structure gives the steel its special combination of strength and ductility. The different phases are arranged in such a way that they optimally withstand the mechanical loads and at the same time ensure high formability.
Areas of Application
HDT760C is widely used in the automotive industry, particularly in the manufacture of body and structural components that have to meet high safety requirements. Its high strength and good formability make it possible to produce components that are both light and resistant. HDT760C is also used in mechanical engineering and the construction industry, where high mechanical requirements and corrosion resistance are needed.
Comparison with other complex-phase steels
Compared to other complex-phase steels such as HDT600C and HDT980C, HDT760C offers an intermediate solution in terms of strength and ductility. While HDT600C has slightly lower strength and higher ductility, HDT980C offers higher strength but at the expense of ductility. HDT760C, on the other hand, represents an optimal compromise and is suitable for applications that require both high mechanical strength and good ductility.
Conclusion
HDT760C is a versatile and high-performance hot-rolled complex-phase steel that is specified in accordance with the DIN EN 10338 and DIN EN 10346 standards. Its special microstructure gives it an ideal combination of high strength and good formability, making it ideal for a wide range of industrial applications. The continuously hot-dip coated version offers additional corrosion protection and makes this steel even more versatile. Whether in the automotive industry, mechanical engineering or the construction industry – HDT760C impresses with its outstanding properties and reliability.
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