440C stainless steel
440C stainless steel carbon content of C-1.2% of this is very good anti-rust steel, volume of imports is more commonly used stainless steel knife, its chromium content up to 16-18%, is the first tool made of stainless steel for one very popular. If a stainless bearing steel to heat treatment, tempering operation is generally recommended prior to cryogenic treatment. This cryogenic treatment process increases the hardness of steel, an increase of wear resistance, and dimensional stability. Therefore, the 440C of the cryogenic treatment, heat treatment is also often used on the tool.
Features:
High hardness and wear resistance of medium, in the polished, its disadvantage is that relatively large viscosity, and the temperature quickly. Suggested the use of chromium corundum or corundum grinding wheel for grinding ceramics. 440C annealing temperature is low, as a tool and bearing, when the heat treatment, hardness can usually achieve HRC57-59, if carried out cryogenic treatment, the hardness can reach HRC59-61. Corrosion resistance and toughness are very strong, are more widely used in high-quality hand-made knife and tool manufacturing plant.
Use:
440C ASSAB special steel after quenching, high hardness, good corrosion resistance (magnetic) cutlery (knife), turbine blades, after quenching, higher than the hardness of 440A steel (magnetic), blades, nozzles, valves, board feet , cutlery (scissors).
Mechanical properties:
Stress (250 N/mm2) tensile strength (560 N/mm2) EL (18%) HB (250)
Chemical Composition (%):
C: 1.10
Mn: 1.00
P: 0.03
S: 0.010
Cr: 17.50
Mo: 0.60
Ni: 0.60
Cu: 0.50
Si: 1.00
Features applications:
In the domestic stainless steel grades in, 440C has a high hardness. Mainly for the manufacture of lubrication in the corrosive environment and strong non-oxidizing atmosphere in the work of the bearing parts. 440C has better high temperature of size, so it can be used as high-temperature corrosion-resistant bearing steel used. In addition, the tool can be used to make high quality, such as medical scalpels, scissors, nozzles, bearings and so on. 440F: 440C steel is to improve the performance of the steel-cutting for automatic lathes, martensitic stainless steel and ordinary steel to achieve the same with the hardening by quenching characteristics, so by selecting the grade and heat treatment conditions to obtain a larger range of different mechanical properties. 440C under dynamic load capacity is low.
440C stainless steel carbon content of C-1.2% of this is very good anti-rust steel, volume of imports is more commonly used stainless steel knife, its chromium content up to 16-18%, is the first tool made of stainless steel for one very popular. If a stainless bearing steel to heat treatment, tempering operation is generally recommended prior to cryogenic treatment. This cryogenic treatment process increases the hardness of steel, an increase of wear resistance, and dimensional stability. Therefore, the 440C of the cryogenic treatment, heat treatment is also often used on the tool.
Features:
High hardness and wear resistance of medium, in the polished, its disadvantage is that relatively large viscosity, and the temperature quickly. Suggested the use of chromium corundum or corundum grinding wheel for grinding ceramics. 440C annealing temperature is low, as a tool and bearing, when the heat treatment, hardness can usually achieve HRC57-59, if carried out cryogenic treatment, the hardness can reach HRC59-61. Corrosion resistance and toughness are very strong, are more widely used in high-quality hand-made knife and tool manufacturing plant.
Use:
440C ASSAB special steel after quenching, high hardness, good corrosion resistance (magnetic) cutlery (knife), turbine blades, after quenching, higher than the hardness of 440A steel (magnetic), blades, nozzles, valves, board feet , cutlery (scissors).
Mechanical properties:
Stress (250 N/mm2) tensile strength (560 N/mm2) EL (18%) HB (250)
Chemical Composition (%):
C: 1.10
Mn: 1.00
P: 0.03
S: 0.010
Cr: 17.50
Mo: 0.60
Ni: 0.60
Cu: 0.50
Si: 1.00
Features applications:
In the domestic stainless steel grades in, 440C has a high hardness. Mainly for the manufacture of lubrication in the corrosive environment and strong non-oxidizing atmosphere in the work of the bearing parts. 440C has better high temperature of size, so it can be used as high-temperature corrosion-resistant bearing steel used. In addition, the tool can be used to make high quality, such as medical scalpels, scissors, nozzles, bearings and so on. 440F: 440C steel is to improve the performance of the steel-cutting for automatic lathes, martensitic stainless steel and ordinary steel to achieve the same with the hardening by quenching characteristics, so by selecting the grade and heat treatment conditions to obtain a larger range of different mechanical properties. 440C under dynamic load capacity is low.
