440C is a hardenable chromium steel. It has one of the highest attainable hardnesses of the corrosion and heat resisting grades. This grade is magnetic at all times. For those applications where superior machinability is desired and where slightly lower corrosion resistance is satisfactory 440C can be supplied.

440C (UNS designation S44004) is a martensitic 400 series stainless steel, [1] and has the highest carbon content of the 400 stainless steel series. It can be heat treated to reach hardness of 58 to 60 HRC. It can be used to make rolling contact stainless bearings, e.g. ball bearings and roller bearings. It is also used to make knife blades.

Stainless steel 440C is a martensitic stainless alloy with 18% chromium 1.20% carbon. The 'C' suffix stands for 'carbon' since it is the stainless steel alloy with the highest carbon content in the 400 series. The high carbon content yields very high strength at the expense of poor machinability, around 35%.

2024年2月27日 · Grade 440C stainless steel is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Small AISI 440C steel sections can be air cooled and quite large sections oil quenched for maximum through hardness.

SS 440A, 440B and 440C stainless steel are AISI and ASTM standard high carbon high chromium martensitic stainless steel, SS440 has high strength, good hardness, corrosion resistance, wear resistance and high temperature dimensional stability. For AISI 440 stainless steel datasheet, heat treatment and equivalent chart, please see the tables below.

440C steel is a type of steel under the American steel standard system, with a chromium content as high as 16% to 18%. Because of its strong corrosion resistance and toughness, 440C was initially widely used as raw material for surgical instruments and in the shipbuilding industry.

2021年8月19日 · 440C has the highest hardness of all stainless and heat resistant steels and is used for nozzles and bearings. 440F is a steel grade that improves the easy cutting properties of 440C steel and is used for automatic lathes.

440C stainless steel is a high-carbon martensitic stainless steel, high carbon content in 440C provides high strength, moderate corrosion resistance, good hardness, and wear resistance. these characteristics make 440C particularly suited to such applications as ball bearings and valve parts, it has the highest hardness among stainless steel.

440C Stainless steel is known for its high corrosion resistance, wear resistance, strength and hardness qualities. It is capable of attaining, after heat treatment, the highest hardness (60 HRC) of any stainless steel.

Technical data for the tool steel 440C, including general Description, examples of applications, chemical composition, comparison chart of wear resistance and chipping resistance, typical heat treat response with Rockwell hardness, size changes during hardening, surface treatment options, annealing instructions, stress reliving instructions ...