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Shanghai Jingteng Metal Group Co., Ltd.

   
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55Cr3

55Cr3

55Cr3 Spring Steel
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55Cr3 Spring Steel



Material Name


Material Name: 55Cr3
Execution standard: GB/T1222-1984

Characteristics and scope of application


Prominent advantage is good hardenability, also hot workability, comprehensive mechanical properties, anti decarburization performance also good a large section of the various important spring, such as automotive, locomotive large leaf spring, coil spring and so on.
With high strength, plasticity and toughness and hardenability better, overheating sensitivity than low manganese steel, decarburization tendency is smaller than that of silicon manganese steel, tempering brittleness large
For a vehicle, tractor industry production of heavy load, high stress spring and large diameter spiral spring.

Chemical Composition


C
 Si Mn S P
 		V
 Cr Ni Cu
0.52～0.60
 0.17～0.37 0.65～0.95 Max 0.030 Max 0.030
 0.10-0.20
 0.65～0.95 Max 0.35 Max 0.25

Mechanical Property


Tensile strength
σb (MPa)
Elongation
δ 5 (％)
reduction of crosssection area
ψ (％)
Hardness
(HB)

Yield Strength
σs 0.2 (MPa)
Min 1225 Min 9 Min 20
 Max 321
 Min 1080

Delivery State


  annealed state delivery, the delivery state should be indicated in the contract.