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42CrMo4   ( 1.7225 )

Grade : 42CrMo4
Number: 1.7225
Standard:
    EN 10083 - 3 : 2006   Steels for quenching and tempering. Technical delivery conditions for alloy steels
    EN 10132 - 3 : 2000   Cold rolled narrow steel strip for heat treatment. Technical delivery conditions. Steels for quenching and tempering
    EN 10305 - 1 : 2010   Steel tubes for precision applications. Seamless cold drawn tubes
    EN 10269 : 1999   Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
    EN 10263 - 4 : 2001   Steel rod, bars and wire for cold heading and cold extrusion. Technical delivery conditions for steels for quenching and tempering
    EN 10250 - 3 : 2000   Open steel die forgings for general engineering purposes. Alloy special steels
    EN 10297 - 1 : 2003   Seamless circular steel tubes for mechanical and general engineering purposes. Non-alloy and alloy steel tubes
Classification: Alloy special steel
Equivalent grades: Go here

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Chemical composition %   of grade   42CrMo4 (1.7225)
C Si Mn P S Cr Mo
0.38 - 0.45max   0.40.6 - 0.9max   0.025max   0.0350.9 - 1.20.15 - 0.3


Mechanical properties of grade   42CrMo4 (1.7225)

Nominal diameter (mm):   to 1616 - 4040 - 100100 - 160160 - 250250 - 330330 - 660
Rm - Tensile strength (MPa) (+QT)1100-13001000-1200900-1100800-950750-900700600
Nominal thickness (mm):   0.3 - 3
Rm - Tensile strength (MPa) (+A)620
Rm - Tensile strength (MPa) (+AC)630
Nominal thickness (mm):   to 88 - 2020 - 5050 - 80
Rm - Tensile strength (MPa) (+QT)11001000900800
Rm - Tensile strength (MPa) (+C)720
Rm - Tensile strength (MPa) (+LC)670


Nominal diameter(mm):   or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160; to 1616 - 4040 - 100100 - 160160 - 330330 - 660
Re - Upper yield strength or
Rp0.2 - 0.2% proof strength (MPa) (+QT)
900750650500-550460-500390
Nominal thickness(mm):   0.3 - 3
Rp0.2 0.2% proof strength (MPa) (+A)480


KV - Impact energy (J) longitud., (+QT)+20°
30-35
KV - Impact energy (J) transverse, (+QT)+20°
22


Nominal thickness (mm):     0.3 - 3
A - Min. elongation Lo = 80 mm (%) (+A)15
A - Min. elongation at fracture (%) transverse, (+QT)10-14
A - Min. elongation at fracture (%) (+C)4
A - Min. elongation at fracture (%) (+LC)6


Nominal thickness (mm):     to 1616 - 4040 - 100100 - 160160 - 250
A - Min. elongation Lo = 5,65 √ So (%) (+QT), round products 1011121314


Nominal diameter (mm):     or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160; to 1616 - 4040 - 100100 - 160160 - 250
Z - Reduction in cross section on fracture (%) (+QT)4045505055
Z - Reduction in cross section on fracture (%) (+AC)57


  Brinell hardness   (HBW):   (+S)255
  Brinell hardness   (HBW):   (+A)241
  Vickers hardness  ( HV):   (+A)195
  Vickers hardness  ( HV):   (+QT)340 - 490


Properties of grade   42CrMo4 (1.7225)
Weldability: Bad weldability due to the high crack danger.
Hardenability: Medium-good hardenability, suitable for hot purposes till a temperature of 500 C. It can be hardened in oil.


Equivalent grades of grade   42CrMo4 (1.7225)
Warning! Only for reference
USA
-
Germany
DIN,WNr
Japan
JIS
France
AFNOR
England
BS
Italy
UNI
Spain
UNE
China
GB
Sweden
SS
Finland
SFS
Russia
GOST
Inter
ISO
4140
4142
42CrMo4
SCM440H
42CD4
708M40
CFS11
42CrMo4
40CrMo4
F1252
42CrMo
2244
42CrMo4
35KHM
38KHM
42CrMo4
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Mechanical properties
Mechanische Eigenschaften
Caracteristiques mecaniques
ReH Minimum yield strength / Mindestwert der oberen Streckgrenze / Limite delasticite minimale
Rm Tensile strength / Zugfestigkeit / Resistance a la traction
A Minimum elongation / Mindestwert der Bruchdehnung / Allongement minimal
J Notch impact test / Kerbschlagbiegeversuch / Essai de flexion par choc


Heat treatment conditions
+A Soft annealed
+AC Annealed to achieve spheroidization of the carbides
+AR As rolled
+AT Solution annealed
+C Cold drawn / hard
+CR Cold rolled
+FP Treated to ferrite-pearlite structure and hardness range
+I Isothermal annealing
+LC Cold drawn / soft
+M Thermo mechanical rolling
+N Normalized
+NT Normalized and tempered
+P Precipitation hardened
+PE Peeled
+QA Air quenched and tempered
+QL Liquid quenched and tempered
+QT Quenched and tempered
+S Treated to improve shearability
+SH As rolled and turned
+SR Cold drawn and stress relieved
+T Tempered
+TH Treated to hardness range
+WW Warm worked
+U Untreated

Chemical composition of   42CrMo4 (1.7225). Equivalent grades of   42CrMo4 (1.7225). Standards of   42CrMo4 (1.7225).
Properties of   42CrMo4 (1.7225). Hardness of   42CrMo4 (1.7225). Strength of   42CrMo4 (1.7225). Elongation of   42CrMo4 (1.7225).

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