55si2mn spring steel wire

产品规格：

齐全

Characteristics and scope of application
Spring steel silicon and manganese improve elastic strength and yield ratio, improve hardenability, anti-tempering stability and anti-relaxation stability, and have low overheat sensitivity, but have a greater tendency to decarburization , especially when the silicon and carbon content are high, carbon is prone to graphitization, making the steel brittle. Spring steel is used as vibration-absorbing leaf springs and coil springs, cylinder safety valve springs on automobiles, tractors and locomotives, and can also be used as heat-resistant springs used below ℃.
Chemical composition
Carbon: .~
Silicon: .~
Manganese.~
Sulfur:
Phosphorus:
Chromium:
Nickel
Copper:
Mechanical properties
Tensile strength:
Yield strength:
Elongation ():
Reduction of area ():< br/> Hardness: hot rolling, cold drawing + heat treatment,
Heat treatment specifications and metallographic structure
Heat treatment specifications: quenching ℃℃, oil cooling and tempering ℃℃ (for special needs, 3℃).
Metallographic structure: tempered troostite.