Material 1.7325

Case hardening steel

The material 25MoCr4 is a case-hardening steel that is frequently used
used in automobile construction.

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1.7325

Standards

HDIN / EN US-Standard AFNOR UNI JIS request
25MoCr4 request

Material Category: Case hardening steel

Heat Treatment

Hot forming 850 - 1000 C°
Soft annealing (+A) 650 - 700 C°
Treat to hardness range (+TH) 850 - 950 C°
Treat on ferrite perlite structure and hardness range (+FP) 900 - 1000 C°

Chemical Composition

C % Si % Mn % P % S % Al % Cr % Mo %
0,23 - 0,29 0,15 - 0,40 0,60 -0,90 max 0,035 max 0,035 (max 0,0200) 0,40 - 0,60 0,40 - 0,50

 

Product Specifications

Not available

Mechanical Properties

Stabstahl
behandelt auf Härtespanne Härte [HB 30]
<= 150 mm 170 - 217 HB 30
behandelt auf Ferrit-Perlit Gefüge und Härtespanne Härte [HB 30]
<= 60 mm 152 - 201 HB 30
weichgeglüht Härte [HB 30] <= 217 HB 30
nach Einsatzhärtung, im Kern Streckgrenze (Re) Zugfestigkeit (Rm) Bruchdehnung (A5, 65) Einschnürung (Z) Kerbschlagarbeit
(DVM)
<= 11 mm >= 735 N/mm² 1.080 - 1.370 N/mm² >= 7 % >= 30 % >= 34 Joule
<= 30 mm >= 685 N/mm² 980 - 1.270 N/mm² >= 8 % >= 35 % >= 34 Joule
<= 63 mm >= 540 N/mm² 780 - 1.080 N/mm²   >= 35 %  

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