8630 51 28
8640 56 38
8660 64 55
The 4340 alloy steel is made up of 18 percent nickel-chromium-molybdenum This kind of alloy steel possesses high strength and toughness in relatively larger sections The task at hand is to harden a 100mm diameter of the 4340 alloy still Having understood the composition of this kind of allow steel, the hardening process that can be used to harden the 4340 steel in order to achieve a minimum yield strength of 900Mpa is through tempering process
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Received on Fri Jan 08 2021 - 21:15:12 CET