Japan's Hitachi spring steel S65C-CSP steel, spring steel wire of soft material, S65C-CSP spring steel, carbon spring steel, alloy spring steel [Chemical Composition]: as the spring steel alloy, carbon composition, general wC = 0.5% ~ 0.7 %, to meet the high elasticity, high strength performance requirements. Main alloying elements are added Si, Mn, Cr, is to strengthen the role of ferrite, increase hardenability and tempering resistance of. But adding too much will cause the Si steel heating surface is easy to decarburization, Mn tends to add too much grain growth. Adding a small amount of V and Mo can be refined grains, and thus further enhance the strength and improved toughness. In addition, they also further improve the hardenability and tempering resistance of the role.
55Si2Mn - characteristics: strength, elastic limit is good, the ratio of high yield, good toughness after heat treatment, welding, poor, cold plastic deformation of low, cutting is still good hardenability higher than 65,65 Mn steel, the critical quenching diameter: Oil in about 25 ~ 57mm; the water is about 44 ~ 88mm; this steel should oil quenching, water quenching cracks tend to form when there is no tendency to temper brittleness, and with anti-tempering stability and stability against relaxation; inclusions in steel high, rolling more difficult, prone surface flaws, decarburization tendency to large; suitable for quenching and tempering temperature state to use. Application: Suitable for manufacturing rolling stock, cars, tractors and other under moderate load of flat springs, diameter <25mm spiral spring, buffer spring and cylinder safety valve to work under high stress the importance of spring.
    
   55Si2MnB - Features: Performance and 55Si2Mn steel similar, but higher hardenability, quenching in oil, the critical diameter of about 90 ~ 180mm, fatigue strength was also significantly increased. Application: Suitable for manufacturing, small cross-section of the leaf spring, such as car leaf springs front and rear vice.
    
   55SiMnVB - characteristics: strength, toughness and ductility and hardenability than steel 60Si2MnA high critical oil quenching diameter of about 50 ~ 107mm; good performance of thermal processing, heat treatment, surface decarburization tendency of small, good temper resistance . Uses: suitable for the manufacture of medium-size cross-section spiral plate spring and spring, can be used instead of 60SiMnA steel.
    
   60SiMn, 60Si2MnA - compared with 55Si2Mn steel, strength and elastic limit are slightly higher (including steel 60Si2MnA better) good hardenability is also straight, the critical quenching in oil until about 37 ~ 73mm, the same as other properties ; main use state quenching and tempering temperature used. Uses: This steel is widely used for the manufacture of railroad cars, automobiles, tractors and other industrial manufacturers bear a greater load of ≤ 30mm diameter flat spring or spiral spring, such as cars, train cars to withstand stress and vibration with the lower spring plate, safety valve and check valve spring and the temperature on the <250 ℃ heat-resistant non-corrosive medium spring; to withstand alternating loads and work under high stress the important roll of large springs and withstand severe wear and tear of mechanical parts.
    
   60Si2CrA - Features: Compared with 60Si2MnA steel, plastic similar, but the tensile strength and yield point are high; decarburization heat treatment thermal sensitivity and tendency of small, high hardenability, quenching oil, the critical diameter of about 37 ~ 114mm, but there is tendency to temper brittleness; general quenching and tempering temperature used. Application: Suitable for manufacturing under high stress and temperature <300C under the conditions of work of the spring, such as the governor spring, gas turbine seal springs, disc springs and high-pressure condenser water pump bearing spring and so on.
    
   60Si2CRVA - characteristics and uses of steel with 60Si2CrA similar, but the elastic limit and high temperature mechanical properties better. Uses: suitable for the manufacture of temperature is less than 300 ~ 350 ℃ under the conditions used in the spring and withstand the impact of heat stress and the importance of high-load spring.
    
   55CeMnA, 60CrMnA - characteristics: high strength, ductility, weldability is poor, can still be cutting, hardenability than manganese or silicon chromium spring steel is good, the oil in the critical high tendency to decarburization lower than the Si-Mn steel , a greater tendency to temper brittleness, it should select the appropriate tempering temperature and cooling rate; general state quenching and tempering temperature used. Application: Suitable for manufacturing automobiles, tractors and other large industrial manufacturing work load and stress conditions of the plate springs and larger diameter (up to 50mm) of the spiral spring.
Japan's Hitachi spring steel S65C-CSP steel, spring steel wire of soft material, S65C-CSP spring steel, carbon spring steel, alloy spring steel

Japan's Hitachi spring steel S65C-CSP steel, spring steel wire of soft material, S65C-CSP spring steel, carbon spring steel, alloy spring steel [Chemical Composition]: as the spring steel alloy, carbon composition, general wC = 0.5% ~ 0.7 %, to meet the high elasticity, high strength performance requirements. Main alloying elements are added Si, Mn, Cr, is to strengthen the role of ferrite, increase hardenability and tempering resistance of. But adding too much will cause the Si steel heating surface is easy to decarburization, Mn tends to add too much grain growth. Adding a small amount of V and Mo can be refined grains, and thus further enhance the strength and improved toughness. In addition, they also further improve the hardenability and tempering resistance of the role.
55Si2Mn - characteristics: strength, elastic limit is good, the ratio of high yield, good toughness after heat treatment, welding, poor, cold plastic deformation of low, cutting is still good hardenability higher than 65,65 Mn steel, the critical quenching diameter: Oil in about 25 ~ 57mm; the water is about 44 ~ 88mm; this steel should oil quenching, water quenching cracks tend to form when there is no tendency to temper brittleness, and with anti-tempering stability and stability against relaxation; inclusions in steel high, rolling more difficult, prone surface flaws, decarburization tendency to large; suitable for quenching and tempering temperature state to use. Application: Suitable for manufacturing rolling stock, cars, tractors and other under moderate load of flat springs, diameter <25mm spiral spring, buffer spring and cylinder safety valve to work under high stress the importance of spring.
    
   55Si2MnB - Features: Performance and 55Si2Mn steel similar, but higher hardenability, quenching in oil, the critical diameter of about 90 ~ 180mm, fatigue strength was also significantly increased. Application: Suitable for manufacturing, small cross-section of the leaf spring, such as car leaf springs front and rear vice.
    
   55SiMnVB - characteristics: strength, toughness and ductility and hardenability than steel 60Si2MnA high critical oil quenching diameter of about 50 ~ 107mm; good performance of thermal processing, heat treatment, surface decarburization tendency of small, good temper resistance . Uses: suitable for the manufacture of medium-size cross-section spiral plate spring and spring, can be used instead of 60SiMnA steel.
    
   60SiMn, 60Si2MnA - compared with 55Si2Mn steel, strength and elastic limit are slightly higher (including steel 60Si2MnA better) good hardenability is also straight, the critical quenching in oil until about 37 ~ 73mm, the same as other properties ; main use state quenching and tempering temperature used. Uses: This steel is widely used for the manufacture of railroad cars, automobiles, tractors and other industrial manufacturers bear a greater load of ≤ 30mm diameter flat spring or spiral spring, such as cars, train cars to withstand stress and vibration with the lower spring plate, safety valve and check valve spring and the temperature on the <250 ℃ heat-resistant non-corrosive medium spring; to withstand alternating loads and work under high stress the important roll of large springs and withstand severe wear and tear of mechanical parts.
    
   60Si2CrA - Features: Compared with 60Si2MnA steel, plastic similar, but the tensile strength and yield point are high; decarburization heat treatment thermal sensitivity and tendency of small, high hardenability, quenching oil, the critical diameter of about 37 ~ 114mm, but there is tendency to temper brittleness; general quenching and tempering temperature used. Application: Suitable for manufacturing under high stress and temperature <300C under the conditions of work of the spring, such as the governor spring, gas turbine seal springs, disc springs and high-pressure condenser water pump bearing spring and so on.
    
   60Si2CRVA - characteristics and uses of steel with 60Si2CrA similar, but the elastic limit and high temperature mechanical properties better. Uses: suitable for the manufacture of temperature is less than 300 ~ 350 ℃ under the conditions used in the spring and withstand the impact of heat stress and the importance of high-load spring.
    
   55CeMnA, 60CrMnA - characteristics: high strength, ductility, weldability is poor, can still be cutting, hardenability than manganese or silicon chromium spring steel is good, the oil in the critical high tendency to decarburization lower than the Si-Mn steel , a greater tendency to temper brittleness, it should select the appropriate tempering temperature and cooling rate; general state quenching and tempering temperature used. Application: Suitable for manufacturing automobiles, tractors and other large industrial manufacturing work load and stress conditions of the plate springs and larger diameter (up to 50mm) of the spiral spring.
Japan's Hitachi spring steel S65C-CSP steel, spring steel wire of soft material, S65C-CSP spring steel, carbon spring steel, alloy spring steel