Foshan supply 440B 440C stainless steel rod round rod 440A 440F stainless steel rods that SUS440C is martensitic stainless steel, high carbon content than 3cr13 steel, so the strength, hardness than 3cr13 steel. 3cr13 steel and other properties similar but poor welding usually no welding materials used in the manufacture of surgical medical instruments used in the manufacture of stainless steel imported from Japan .SUS440C working in corrosive environments and strong oxidizing non-lubricated bearing parts. The steel also better high temperature dimensional stability, high temperature corrosion resistance can be manufactured and bearing temperature does not exceed 250 ℃ tool characteristics: high hardness and good wear resistance, when polished, its drawback is that relatively large viscosity and the temperature quickly, but it's easier than any steel polished, hand sawing material is also much easier. 440C annealing temperature is low, the hardness usually reaches HRC56-58, corrosion resistance and toughness are strong, now more widely used in high-quality hand-made knives and tool manufacturing plant. Purpose: 440C Assab special steel after quenching high hardness, good corrosion resistance (magnetic) cutlery (knife), after the turbine blades quenched hardness increases than 440 steel (magnetic) blades, nozzles, valves, board feet , cutlery (scissors). Delivery status: generally heat treatment delivery, the treatment types specified in the contract; not indicated, by not heat treatment delivery