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Home » Product » ASTM/AISI/SAE spring steel » HOT ROLLED ASTM/AISI/ASE 51B60 SPRING STEEL FLAT BAR-American Steel Material Grade

HOT ROLLED ASTM/AISI/ASE 51B60 SPRING STEEL FLAT BAR-American Steel Material Grade

ASTM/AISI/ASE 51B60 SPRING STEEL FLAT BAR

ASTM/AISI/ASE 51B60 SPRING STEEL FLAT BAR has fine metallurgical quality ( high purity, homogeneity), excellent surface quality ( specially on surface defect and decarburization), precise external form and dimensions.

ASTM/AISI/ASE 51B60 SPRING STEEL FLAT BAR has fine metallurgical quality ( high purity, homogeneity), excellent surface quality ( specially on surface defect and decarburization), precise external form and dimensions.

 

Chemical composition

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

 

Cr Ni
JIS SUP11A 0.56-0.64 0.15-0.35 0.70-1.00 ≤0.030 ≤0.030 0.70-1.00

ASTM/AISI/ASE 51B60 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℃-520℃

 

Characteristics

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

 

Application

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

ASTM/AISI/ASE 51B60 SPRING STEEL FLAT BAR

 

Delivery Condition

Hot rolled, black surface

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