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C30

C30 

C30 EN 10250-2:1999, Number: 1.0528 Comparison of steel grades
JUS Č.13322
DIN C30
BS 30
GOST -
AISI -
UNI  
NF -

  Chemical analysis -% by mass 

Chemical elements C Si 
max.
Mn P max. S
max.
Cr
max.
Mo
max.
Ni
max.
Cr+Mo+Ni
max.
 
%, by mass mase 0,27-0,34 0,40 0,50-0,80 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 quenched and tempered conditions

Thickness of ruling section tR
Diameter in mm tR ≤ 100mm 100< tR ≤250mm 250< tR ≤500mm 500< tR ≤1000mm
Re min  (N/mm2) 250 230 - -
Rm min (N/mm2) 480 460 - -
A % min. l-longitudinal 21 21 - -
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
850 to 890 Water 550 to 660 870 to 910

Source:

Tags: C30

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