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C50 steel

C50 steel plate, EN 10083 C50 steel plate, under EN 10083 standard, we can regard C50 steel plate as high carbon steel.

C50 steel plate is one mainly of high carbon steel,EN 10083 C50 steel plate is one of the higher carbon content (0.47-0.55) steels.It is equal to DIN C50,JUS Č.16301 and NF AF70C55.
 

  C50
EN 10083-2
Number: 1.0540
Comparison of steel grades
JUS Č.16301
DIN C50
BS -
GOST -
AISI -
UNI -
NF (AF70C55)

Chemical analysis -% by mass * of C50 steel

Chemical elements C Si 
max.
Mn P
max.
S
max.
Cr
max.
Mo
max.
Ni
max.
Cr+Mo+Ni
max.
%, by mass 0,47-0,55 0,40 0,60-0,90 0,045 0,045 0,40 0,10 0,40 0,63
- -
Permissible deviation ±  0,02 + 0,03 ± 0,04 + 0,005 + 0,005 + 0,05 + 0,03 + 0,05

At the option of the manufacturer the elements aluminium, titanium, vanadium and niobium may be added singly
or in combination for grain size control purposes.
Elements not quoted in table shall not be added  to the steel without the agreement of  the purchaser, except for
 the purpose  of  finishing the heat.
 
Mechanical properties in the normalized and normalized and tempered conditions of C50 steel
 

Thickness of ruling section tR
Diameter in mm tR ≤ 100mm 100< tR≤250mm 250< tR≤500mm 500< tR≤1000mm
Re min  (N/mm2) 320 290 - -
Rm min (N/mm2) 610 590 - -
A % min. l-longitudinal 14 14 - -
tr -transverse - - - -
KV min * (J) l-longitudinal - - - -
tr -transverse - - - -

1N/mm2=1MPa
Heat treatment conditions
 

Quenching
Temperature, 0C
Cooling medium Tempering
Temperature, 0C
Normalizing  
Temperature, 0C
810 to 850 Oil or water 550 to 660 830 to 870