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25CrMoS4

25CrMoS4 EN 10083-3:2002, Number: 1.7213 Comparasion of steel grades
JUS C.B9.021 Č.47301
DIN 25CrMoS4
BS (708 M 25)
GOST -
AISI 5140
UNI 25CrMoS4
NF 25 CD 4, 25 CD 4 u

Under EN10083-3:2002 standard 25CrMoS4 steel plate/sheet properties and heat treatment forgings, Including 25CrMoS4 steel application and specifications, We have all specifications,Including 25CrMoS4 STEEL SHEET bars, rod, Plate, bar, square steel, rectangular steel,forgings, BEBON STEEL can own production and sales.

Chemical elements C Si Mn P S Cr Mo
%, by mass 0,22 - 0,29 £ 0,40 0,60 - 0,90 max 0.025 0,020-0,040 0,90-1,20 0,15-0,30
Permissible deviation ± 0.02 ± 0,03 ± 0,04 + 0.005 ± 0.005 ± 0.05 ± 0.03

 

 

 

25CrMoS4 STEEL PLATE Chemical analysis -% by mass Mechanical properties in the quenched and tempered condition 
 

  d  ≤ 16mm oder t ≤ 8mm 16mm < d  ≤ 40mm 8mm < t  ≤  20mm 40mm < d  ≤ 100mm 20mm < t  ≤  60mm 100mm <  d  ≤ 160mm 60mm < t  ≤  100mm
  160mm<d ≤    250mm
100mm<t ≤  160mm
Re min (MPa) 700 600 450 400 -
Rm (MPa) 900-1100 800-950 700-850 650-800 -
A  min. (%) 12 14 15 16 -
Z  min. (%) 45 55 60 60 -
KV min. (J) 50 50 50 45 -

Jominy’s hardenability band  

Distance in mm from quenched end Hardness in HRC  (mm)
mm 1,5 3 5 7 9 11 13 15 20 25 30 35 40 45 50
+H max. 52 52 51 50 48 46 43 41 37 35 33 32 31 31 31
min. 44 43 40 37 34 31 29 27 23 21 20 - - - -
+HH* max. 52 52 51 50 48 46 43 41 37 35 33 32 31 31 31
min. 47 46 44 41 39 37 34 32 28 26 24 23 22 22 22
+HL* max. 49 49 47 47 43 41 38 36 32 30 29 28 27 27 27
min. 44 43 40 37 34 31 29 27 23 21 20 - - - -

Heat treatment conditions – informative

Hardening temperature in the end quench test Quenching temperature Quenching in Tempering temperature
8500±50C 840-900 0C Water or oil 540-680 0C

Maximum hardness for products to be supplied in the ’’treated to improve shearability (+S)’’ or ’’soft annealed (+A)’’ condition

  +S 
HB max.
+A HB max.
255 212

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