JIS SUP9/ DIN55Cr3 FORGED SPRING STEEL BAR

jis-sup9-din55cr3-forged-spring-steel-bar

JIS SUP9/ DIN55Cr3 FORGED SPRING STEEL BAR

JIS SUP9/ DIN55Cr3 FORGED SPRING STEEL BAR is a kind of spring steel grade with high strength, plasticity and toughness.

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JIS SUP9/ DIN55Cr3 FORGED SPRING STEEL BAR is a kind of spring steel grade with high strength, plasticity and toughness.

Similar Grades

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
JIS SUP9 0.52-0.60 0.15-0.35 0.65-0.95 ≤0.030 ≤0.030 0.65-0.95
DIN 55Cr3/1.7176 0.52-0.59 ≤0.40 0.70-1.00 ≤0.025 ≤0.025 0.70-1.00

 

Available Size

Forged steel round bar: dia100mm-dia1500mm

Forged flat bar: thickness20mm-400mm, width80mm-1000mm

Forged steel block: 100mm*100mm-1000mm*1000mm

JIS SUP9/ DIN55Cr3 FORGED SPRING STEEL BAR

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.

Application

Leaf spring and spiral spring with large diameter.

JIS SUP9/ DIN55Cr3 FORGED SPRING STEEL BAR

Delivery Condition

Forged, black surface/ turned surface with customers’ required heat treatment

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