40NiCrMo84 Alloy Steel

About 40NiCrMo84 Alloy Steel

With help of consistent efforts and dedication of our experts, we have been able to manufacture and supply a wide range of 40NiCrMo84 Alloy Steel to our esteemed clients. It is a medium carbon, low alloy steel. This alloy steel is utilized in all metal cutting tools for roughing and finishing including twist drills, thread dies, reamers, broaches, and woodworking tools. Apart from this, 40NiCrMo84 Alloy Steel is highly admired for its great cutting edge retention and high toughness. Also, it is obtainable at very budget-friendly prices to access a large number of people.Technical Specification Grade C Mn P S Si Ni Cr Mo 4340 0.38-0.43 0.60-0.80 0.035 max 0.040 max 0.15-0.35 1.65-2.00 0.70-0.90 0.20-0.30 Physical Properties Thermal Conductivity at C W / (m*K) 20 40.5 350 32.5 700 25.5 Heat Treatment Soft Annealing C 650-700 Cooling Slowly Hardness HB max. 280 Stress-relief Annealing C 630-650 Cooling Furnace 1st Pre-Heating C up to approx. 400 in an air-circulating furnace 2nd and 3rd 780 and 1000 Hardening C 1190-1230 Quenching at least 520 C Oil, Air Tempering C at least twice 530-560 Hardness after Temperature HRC 64-66