Grade :

42CrMoS4

Number:

1.7227

Classification:

Alloy special steel

Standard:

EN 10277-5: 2008 Bright steel products. Technical delivery conditions. Steels for quenching and tempering

EN 10083-3: 2006 Steels for quenching and tempering. Technical delivery conditions for alloy steels

EN 10263-4: 2001 Steel rod, bars and wire for cold heading and cold extrusion. Technical delivery conditions for steels for quenching and tempering

Mechanical properties of steel 42CrMoS4 (1.7227)

Nominal diameter (mm):	to 16	16 - 40	40 - 100	100 - 160	160 - 250
Rm - Tensile strength (MPa) (+QT)	1100-1300	1000-1200	900-1100	800-950	750-900

Rm - Tensile strength (MPa) (+AC)

630

Nominal diameter(mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160;	to 16	16 - 40	40 - 100	100 - 160	160 - 250
Re - Upper yield strength or R_p0.2 - 0.2% proof strength (MPa) (+QT)	900	750	650	550	500

Nominal thickness (mm):	to 16	16 - 40	40 - 100	100 - 160	160 - 250
A - Min. elongation Lo = 5,65 √ So (%) (+QT), round products	10	11	12	13	14

Nominal diameter (mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160;	to 16	16 - 40	40 - 100	100 - 160	160 - 250
Z - Reduction in cross section on fracture (%) (+QT)	40	45	50	50	55

Z - Reduction in cross section on fracture (%) (+AC)

Brinell hardness (HBW): (+S)	255
Brinell hardness (HBW): (+A)	241

Properties of steel 42CrMoS4 (1.7227)

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

Equivalent grades of steel 42CrMoS4 (1.7227)

Warning! Only for reference

EU
EN

USA
-

Germany
DIN,WNr

France
AFNOR

Italy
UNI

Spain
UNE

Inter
ISO

42CrMoS4

4140

42CrMoS4