Gurule92
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Ole Freddy Lambert back at it again. Notice it says cold worked.
Tesla applies for patent for ‘ultra-hard steel’ for Cybertruck
https://electrek.co/2023/02/24/tesla-applies-patent-ultra-hard-steel-cybertruck/
In the patent application, Tesla shared some technical specs of the steel alloy:
Tesla applies for patent for ‘ultra-hard steel’ for Cybertruck
https://electrek.co/2023/02/24/tesla-applies-patent-ultra-hard-steel-cybertruck/
In the patent application, Tesla shared some technical specs of the steel alloy:
In one aspect, a steel alloy composition is described. The composition includes Fe, a hardness is at least about 400 HV, and an Epit-Eocp corrosion resistance of at least about 500 mV in a 3 wt% sodium chloride aqueous solution.
In some embodiments, the hardness is about 420 HV to about 500 HV. In some embodiments, the Epit-Eocp corrosion resistance is about 520 mV to about 800 mV. In some embodiments, the Epit-Eocp corrosion resistance is about 520 mV to about 600 mV. In some embodiments, the composition has a yield strength of at least about 1100 MPa. In some embodiments, the composition has a ductility of at least about 60° bend angle at 1.8mm thickness. In some embodiments, martensite formation begins at about 260 K to about 340 K. In some embodiments, martensite formation begins at about 260 K to about 320 K. In some embodiments, the composition has at least about 12 vol% martensite. In some embodiments, the composition has a yield strength of at least about 1100 MPa.
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