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C55 steel

C55 steel plate, EN 10083 C55 steel plate, under EN 10083 standard, we can regard C55 steel plate as high carbon steel.

C55 steel plate is one mainly of high carbon steel,EN 10083 C55 steel plate is a
medium carbon steel which is used when greater strength and hardness is desired than in the "as rolled"condition.Extreme size accuracy,straightness and concentricity combined to minimize wear in high speed applications.Turned,ground and polished.The C55 steel is applied in quenched and subsequently tempered steel for less exacting springs,shafts,bushings,crankshafts,etc.
 

  C55
EN 10083-2
Number:1.0535

Comparision of steel grades

JIS G 4051 S 55 C
DIN 17200 C 55
NFA 33-101 AF70-C 55
UNI 7846 C 55
BS 970 070 M 55
UNE 36011 C 55 k
SAE J 403-AISI 1055

Chemical Composition of C55

Grade C(%)min-max Si(%)min-max Mn(%)min-max P(%)max S(%)max Cr(%)min-max
C55 0.52-0.60 0.15-0.35 0.60-0.90 0.025 0.025 0.20-0.40

Mechanical Properties of C55

Grade Condition Yield Strength
R°(Mpa)
Tensile Strength
Rm
(Mpa)
Elon-
gation
A5(%)
Hardness
HRC
Quenching
Temperature
(℃)
Benda-
bility
Nominal Thickness,t
1.95mm≤t≤10.0mm
Rolled Annealed
  C55 Rolled
Annealed
Water-quenched
Oil quenched
500
350
825
550
2510
2120
18
30
61
57
805
845
Min.reco-mmended
Bending radius
(≤90°)
3.0
×t
1.0×t