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Home » Product » EN spring steel » HOT ROLLED EN/DIN 55Cr3 SPRING STEEL FLAT BAR-German Steel Material Grade

HOT ROLLED EN/DIN 55Cr3 SPRING STEEL FLAT BAR-German Steel Material Grade

EN/DIN 55Cr3 SPRING STEEL FLAT BAR

EN/DIN 55Cr3 SPRING STEEL FLAT BAR is a kind of pre-hardened material well suited for fabrication requiring shaping by blanking, bending, drawing, extrusion and swaging. Spring steel DIN 17221 55Cr3 allows for closer dimensional tolerances and improved finish and available in several grades. Grade selection is important when considering higher levels of wear resistance.

EN/DIN 55Cr3 SPRING STEEL FLAT BAR is a kind of pre-hardened material well suited for fabrication requiring shaping by blanking, bending, drawing, extrusion and swaging. Spring steel DIN 17221 55Cr3 allows for closer dimensional tolerances and improved finish and available in several grades. Grade selection is important when considering higher levels of wear resistance.

 

Chemical composition

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

 

Cr Ni
DIN 55Cr3/1.7176 0.52-0.59 ≤0.40 0.70-1.00 ≤0.025 ≤0.025 0.70-1.00

 EN/DIN 55Cr3 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℃-510℃

 

Characteristics

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

EN/DIN 55Cr3 SPRING STEEL FLAT BAR

 

Application

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

 

Delivery Condition

Hot rolled, black surface

 

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