ALLOY & CARBON STEEL C55

C55 is a medium carbon steel which is utilized when more noteworthy quality and hardness is needed than Si the as rolled' condition.


Compelling size precision, straightness and concentricity consolidate to minimize wear in high speed appications.














Chemical Composition


Element
Min
Max
Carbon, C0.50 0.60
Manganese, Mn0.600.90
Silicon, Si-.-- 0.30
Sulfur, S -.--0.30
Phosphorous, P-.--0.30

Physical Properties


Properties
Metric
Modulus of elasticity [10^3x N/mm2]205
Density [g/cm3]:7.85

Mechanical Properties


Diameter d
0.2 % proof stress
Tensile strength
Elongation
Reduction Z
(mm)          (Wmm 2 )(Nfrnm 2 )A5 (%)(%)
upto 16             540780-9301220
17-40        460740-8901430
41-100       420700-8501535

Equivalent grades of grade C55


USA
Germany
DIN,WNr
Russia
GOST
Japan
JIS
France
AFNOR
England
BS
Italy
UNI
China
GB
Czechia
CSN
1055C5550 55S55CAF70C55 C54070M55 50 En91C55 C55551655
SpainSwedenPolandInter
UNESSPNISO
C55k165555C55 C55E4


Features


Heat Treatment

Tempering

Hardening

Normalizing

Soft Annealing

Hardness

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