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Home » Product » JIS spring steel » HOT ROLLED JIS SUP10/ DIN 51CrV4 SPRING STEEL FLAT BAR-Japanese Steel Material Grade

HOT ROLLED JIS SUP10/ DIN 51CrV4 SPRING STEEL FLAT BAR-Japanese Steel Material Grade

JIS SUP10/ DIN 51CrV4 SPRING STEEL FLAT BAR

JIS SUP10/ DIN 51CrV4 SPRING STEEL FLAT BAR is a high-class spring steel with good mechanical properties and processing properties. The adding of vanadium decrease the superheated susceptivity and improve the strength and toughness.

JIS SUP10/ DIN 51CrV4 SPRING STEEL FLAT BAR is a high-class spring steel with good mechanical properties and processing properties. The adding of vanadium decrease the superheated susceptivity and improve the strength and toughness.

 

Chemical composition

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

 

Cr V
GB 50CrVA 0.46-0.54 0.17-0.37 0.50-0.80 ≤0.025 ≤0.025 0.80-1.00 0.10-0.20
JIS SUP10 0.47-0.55 0.15-0.35 0.65-0.95 ≤0.030 ≤0.030 0.80-1.10 0.15-0.25
DIN 51CrV4/1.8159 0.47-0.55 ≤0.40 0.70-1.00 ≤0.035 ≤0.035 0.90-1.20 0.10-0.20

 

Available Size

Thickness: 5mm-115mm,

width50mm-250mm

JIS SUP10/ DIN 51CrV4 SPRING STEEL FLAT BAR

 

Available Heat Treatment

Annealing/Normalizing/Hardening/Tempering/Quenching

Quenching temperature: 840℃-870℃, oil cooling

Tempering temperature: 470℃-540℃

 

Characteristics

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

 

Application

Leaf spring and spiral spring with large diameter, valve spring, injector spring and air cylinder expansion ring under 300℃.

JIS SUP10/ DIN 51CrV4 SPRING STEEL FLAT BAR

 

Delivery Condition

Hot rolled, black surface

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