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Home » Product » GB spring steel » HOT ROLLED GB 55CrMoA SPRING STEEL FLAT BAR-Chinese Steel Material Grade

HOT ROLLED GB 55CrMoA SPRING STEEL FLAT BAR-Chinese Steel Material Grade

GB 55CrMoA SPRING STEEL FLAT BAR

GB 55CrMoA SPRING STEEL FLAT BAR are used in the manufacture of springs like heavy stress and load bearing leaf spring and larger diameter coil springs.

GB 55CrMoA SPRING STEEL FLAT BAR are used in the manufacture of springs like heavy stress and load bearing leaf spring and larger diameter coil springs.

 

Chemical composition

Standard Grade Chemical composition (%)
C Si Mn P S

 

Cr Ni
GB 55CrMnA 0.52-0.60 0.17-0.37 0.65-0.95 ≤0.025 ≤0.025 0.65-0.95 ≤0.35

GB 55CrMoA SPRING STEEL FLAT BAR

 

Available Size

Thickness: 5mm-115mm,

width50mm-250mm

 

Available Heat Treatment

Annealing/Normalizing/Hardening/Tempering/Quenching

Quenching temperature: 830℃-860℃, oil cooling

Tempering temperature: 460℃-510℃

 

Characteristics

  1. High strength.
  2. High hardenability.
  3. High plasticity and toughness.

GB 55CrMoA SPRING STEEL FLAT BAR

 

Application

Large spring under heavy load and high stress condition, like large-section leaf spring and large- diameter sprial spring of automobile and tractors.

 

Delivery Condition

Hot rolled, black surface

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