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440 stainless steel sheet
stainless steel sheet
440 stainless sheet
440 stainless steel sheet

440 stainless steel sheet

Stainless steels are high-alloy steels which have high corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are divided into three types such as ferritic, austenitic, and martensitic steels. Another group of stainless steels are precipitation-hardened steels. They are a combination of martensitic and austenitic steels. Grade 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts.
Product Information

Stainless steels are high-alloy steels which have high corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are divided into three types such as ferritic, austenitic, and martensitic steels. Another group of stainless steels are precipitation-hardened steels. They are a combination of martensitic and austenitic steels.

Grade 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts.

Product Details

Composition
Chemical Composition ranges of 440C stainless steel

Grade440C
Ingredients Min. Max.
Carbon 0.95 1.20
Manganese 1.00
Silicon 1.00
Phosphorus 0.040
Sulphur 0.030
Chromium 16.00 18.00
Molybdenum 0.75
Iron Balance

440C Physical Properties
Physical properties for grade 440 stainless steels.

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (mm/m/C) Thermal Conductivity (W/m.K) Specific Heat
0-100C (J/kg.K)
Electrical Resistivity (nW.m)
0-100C 0-200C 0-600C at 100C at 500C
440A/B/C 7650 200 10.1 10.3 11.7 24.2 460 600

440C Related Specifications

USA Germany Japan Australia
ASTM A276-98b 440C
SAE 51440C AISI 440C
UNS S44004
W.Nr 1.4125 X105CrMo17 JIS G4303 SuS 440C AS 2837-1986 440C
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