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Home » Product » GB spring steel » HOT ROLLED GB 60CrMoA SPRING STEEL FLAT BAR-Chinese Steel Material Grade

HOT ROLLED GB 60CrMoA SPRING STEEL FLAT BAR-Chinese Steel Material Grade

GB 60CrMoA SPRING STEEL FLAT BAR

GB 60CrMoA SPRING STEEL FLAT BAR are designated by AISI four-digit numbers. They are more responsive to heat and mechanical treatments than carbon steels. They comprise various types of steels having compositions which exceed the limitations of Va, Cr, Si, Ni, Mo, C and B in the carbon steels.

GB 60CrMoA SPRING STEEL FLAT BAR are designated by AISI four-digit numbers. They are more responsive to heat and mechanical treatments than carbon steels. They comprise various types of steels having compositions which exceed the limitations of Va, Cr, Si, Ni, Mo, C and B in the carbon steels.

 

Chemical composition

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

 

Cr Ni
JIS SUP9A 0.56-0.64 0.15-0.35 0.70-1.00 ≤0.030 ≤0.030 0.70-1.00

 

Available Size

Thickness: 5mm-115mm, width50mm-250mm

GB 60CrMoA SPRING STEEL FLAT BAR

 

 

Available Heat Treatment

Annealing/Normalizing/Hardening/Tempering/Quenching

Quenching temperature: 830℃-860℃, oil cooling

Tempering temperature: 460℃-520℃

 

Characteristics

  • high strength and toughness
  • good hardenability and plasticity
  • 5160 spring steel

 

Application

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

GB 60CrMoA SPRING STEEL FLAT BAR

 

Delivery Condition

Hot rolled, black surface

 

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