Product Description
440C stainless steel has the highest hardness of all stainless steel, heat-resisting steel.For nozzles, bearings .440 F: to improve the performance of 440C stainless steel easy to cut steel. For automatic lathes. Martensitic stainless steel and alloy steel has the same features, hardened by quenching to a wide range of different mechanical properties by selecting the grade and heat treatment conditions.
C-1.2% of this steel rust resistant 440C stainless steel carbon content, is more commonly used stainless steel imports produced a knife, its chromium content up to 16-18%, is also one of the earliest stainless steel for tool making. popular. As stainless bearing steel heat treatment, Oushi Bang cryogenic treatment is generally recommended before tempering operations. This cryogenic processing improves the hardness of the steel, increasing the wear resistance and dimensional stability. Therefore, the deep cryogenic treatment on the 440C stainless steel, often used for tool heat treatment.
The high hardness and moderate wear resistance, in the polished, its drawback is that the viscosity is relatively large, but warming quickly. S ested the use of chromium corundum or microcrystalline corundum grinding wheel for grinding. Annealing temperature of 440C stainless steel is very low, the heat treatment time as cutting tools and bearings, usually hardness can reach HRC57-59, if the cryogenic treatment, the hardness can reach HRC59-61. Corrosion resistance and toughness are very strong, is now more widely used in hand-made knives and high-quality plant system tool.
440C stainless steel with high hardness. Mainly used in the manufacture of the bearing parts of the corrosive environment and lubrication strong oxidizing atmosphere. 440C stainless steel with good high temperature dimensional temperature, so it can be used as corrosion-resistant high-temperature bearing steel. In addition, it can be used to create high-quality tool, such as medical scalpels, scissors, nozzles, bearings, etc..440F: to improve the performance of 440C stainless steel easy to cut steel for automatic lathes, martensitic stainless steel and alloy steel has the same characteristics of hardening by quenching, so you can select the grade and heat treatment conditions to get a wider range of different mechanical properties. 440C stainless steel to withstand the dynamic load capacity is low.
440C stainless steel after quenching, high hardness, good corrosion resistance (magnetic) cutlery (knives), the quenching of the turbine blades, higher than the hardness of the 440A steel (magnetic), blades, nozzles, valves, board feet, cutlery, scissors,Medical Devices
440C stainless steel mechanical properties:
440C stainless steel hardness: annealing, ≤ 269HB; quenching and tempering, ≥ 58HV
440C stainless steel mechanical properties: internal stress (250 N/mm2) tensile strength (560 N/mm2) EL (18%) of HB (250)
440C stainless steel heat treatment process:
440C stainless steel heat treatment and microstructure specifications: Heat Treatment Specification:
440C stainless steel annealing and slow cooling 800 to 920 ℃;
440C stainless steel quenching oil cooling, 1010 ~ 1070 ℃;
440C stainless steel tempering rapid cooling from 100 to 180 ℃.
440C stainless steel microstructure: Organizational characteristics of the martensitic type.
440C stainless steel OSBORN delivery status: in general to heat treatment delivery, the treatment types specified in the contract; not indicated, according to Steel Co., Ltd.
