aisi4340 turned ground and polished shaft steel bar

aisi 4340 turned ground and polished steel bar   4340 steel grade is one kind of nickel chromium molybdenum alloy steel known for it's toughness and ability to attach high strength and hardness after quenching and tempering.  4340 steel material is one steel grade in American standard. It's similar steel materials are aisi 4340, sae 4340, astm 4340, 40CrNiMoA, 34CrNiMo6 etc. It is one high alloy steel with high steel mechanical properties. As a steel factory, we can produce 4340 cold drawn steel round bar, 4340 peeled steel round bar, 4340 turned steel round bar, 4340 ground and polished steel round bar, 4340 annealed steel bar, 4340 normalized steel bar, 4340 quenched and tempered steel bar. We can also supply competitive price raw material 4340 hot rolled steel round bar. 4340 material peeled steel bar we supply includes following advantages: 。 Consistent mechanical properties 。 Deep mechanical properties (from surface to the center ac…

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