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46Cr2

46Cr2 EN 10083-3:2002, Number: 1.7006  Comparison of steel grades
JUS C.B9.021 Č.4133
DIN 17200 46Cr2
BS -
GOST 45G2
AISI 5045, 5046
UNI -
NF 42C2

 

Under EN10083-3:2002 standard, the 46Cr2 steel plate/sheet is one of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition,the 46Cr2 steel is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.

46Cr2 steel plate /sheet Chemical analysis -% by mass

Chemical elements C Si Mn P S Cr  
%, by mass 0,42 - 0,50 £ 0,40 0,50 - 0,80 max 0.025 max 0.035 0,40-0,60  
Permissible deviation ± 0.02 ± 0,03 ± 0,04 + 0.005 + 0.005 ± 0.05  

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) 650 550 400    
Rm (MPa) 900-1100 800-950 650-800    
A  min. (%) 12 14 15    
Z  min. (%) 35 40 45    
KV min. (J) 30 35 35    

  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. 63 61 59 57 53 47 42 39 36 33 32 31 30 29 29
min. 54 49 40 32 28 25 23 22 20 - - - - - -
+HH* max. 63 61 59 57 53 47 42 39 36 33 32 31 30 29 29
min. 57 53 46 40 36 32 29 28 25 22 21 20 - - -
+HL* max. 60 57 53 49 45 40 36 33 31 28 27 26 25 24 24
min. 54 49 40 32 28 25 23 22 20 - - - - - -

  Heat treatment conditions – informative

Hardening temperature in the end quench test Quenching temperature Quenching in Tempering temperature
8500±50C 820-860 0C Oil or water 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.
255 223

   

46Cr2 EN 10250-3:1999, Number: 1.7006   Comparasion of steel grades
JUS Č.4133
DIN 46Cr2, 44Cr2
BS -
GOST 45G2
AISI 5045, 5046
UNI -
NF 42C2

  Chemical analysis -% by mass 

Chemical elements C Si Mn P max. S
max.
Cr - - -
%, by mass 0,42- 0,50 £ 0,40 0,50 - 0,80 0.035 0.035 0,40-0,60 - -  
Permissible deviation ± 0.02 + 0,03 ± 0,04 + 0.005 + 0.005 ± 0.05 - - -

At the option the manufacturer the elements aluminium, titanium, vanadium and niobium may be added singly or in combination for grain control 
    purposes. Elements not quoted in tables shall not be added intentionally to the steel without the agreement of the purchaser, except for the purpose 
    of finishing the heat.    Mechanical properties in the quenched and tempered condition 

Trickness of ruling section tR
Diameter in mm ≤ 70mm tR (longitudinal) 70< tR ≤160mm 160<tR≤330mm  
Re min (N/mm2) 400 - -
Rm min (N/mm2) 650 - -
A % min.. 15 - -
KV min (J) 35 - -

    Heat treatment conditions

  Quenching temperature, 0C   Tempering temperature, 0C
820 to 860 540 to 680

Source:

Tags: 46Cr2

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