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25CrM04

25CrM04 EN 10083-3:2002, Number: 1.7218 Comparison of steel grades
JUS Č.4730
DIN 25CrM04
BS 708 M 25, 708 A 25
GOST 20HM, 30HM
AISI 5140
UNI 25CrMo4
NF 25 CD 4, 25CrM04

BEBON steel has 25CrM04 steel all specifications, including 25CrM04 steel bar, rod, plate, square steel, rectangular steel, forgings.

25CrM04

25CrM04

25CrM04 steel Chemical analysis -% by mass:

Chemical elements C Si Mn P S Cr Mo
%, by mass 0,22 - 0,29 £ 0,40 0,60 - 0,90 max 0.025 max 0,035 0,90-1,20 0,15-0,30
Permissible deviation ± 0.02 ± 0,03 ± 0,04 + 0.005 + 0.005 ± 0.05 ± 0.03

25CrM04 steel 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 - - - -

25CrM04 steel 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)’’ orsoft annealed (+A)’’ condition

+S HB max. +A HB max.
255 212

If you need 25CrM04 steel, welcome to contact BEBON. BEBON is a professional steel suplier, you can believe it completely. Becouse of our unremitting efforts, our service has already spread many countries in Europe , America, Southeast Asia, Middle East, South America, Africa, etc.

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Tags: 25CrM04

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