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JIS SUP7 COLD DRAWN SPRING STEEL ROUND BAR

jis-sup7-cold-drawn-spring-steel-round-bar

 

JIS SUP7 COLD DRAWN SPRING STEEL ROUND BAR is high-silicon grade especially designed for its spring properties.

Similar Grades

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

 

Cr Ni
GB 60Si2Mn 0.56-0.64 1.50-2.00 0.70-1.00 ≤0.035 ≤0.035 ≤0.35 ≤0.35
JIS SUP7 0.56-0.64 1.80-2.20 0.70-1.10 ≤0.030 ≤0.030
AISI 9260 0.56-0.64 1.80-2.20 0.75-1.00 ≤0.035 ≤0.040

 

JIS SUP7 COLD DRAWN SPRING STEEL ROUND BAR

Available Size

Cold drawn round bar: dia4mm-dia100mm

Available Heat Treatment

Annealing/Normalizing/Hardening/Tempering/Quenching

Quenching temperature: 830℃-860℃, oil cooling

Tempering temperature: 490℃-540℃

Characteristics

  1. High strength.
  2. High hardenability.

Application

Leaf and truncated conical springs for automotive and general engineering

JIS SUP7 COLD DRAWN SPRING STEEL ROUND BAR

Delivery Condition

Cold drawn