Material 1.5920

Case hardening steel

The material 1.5920 is a chrome-nickel case-hardening steel. 1.5920 is used for highly stressed parts such as shafts or bolts. 1.5920 achieves good strength and toughness.

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Standards

HDIN / EN	US-Standard	AFNOR	UNI	JIS	request
18CrNi8					request

Material Category: Case hardening steel

Applications

Highly stressed transmission parts, in particular ring gears, drive pinions, gear wheels of larger dimensions

Heat Treatment

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

Weldability

The material 1.5920 is weldable.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %
0,15 - 0,20	0,15 - 0,40	0,40 - 0,60	max 0,035	max 0,035	1,80 - 2,10	1,80 - 2,10

Mechanical Properties

Stabstahl
behandelt auf Härtespanne	Härte [HB 30]
<= 150 mm	187 - 235 HB 30

behandelt auf Ferrit-Perlit Gefüge und Härtespanne	Härte [HB 30]
<= 60 mm	170 - 217 HB 30

weichgeglüht

Härte [HB 30]

<= 235 HB 30

nach Einsatzhärtung, im Kern	Streckgrenze (Re)	Zugfestigkeit (Rm)	Bruchdehnung (A5,65)	Einschnürung (Z)	Kerbschlagarbeit (DVM)
<= 11 mm	>= 835 N/mm²	1.230 - 1.470 N/mm²	>= 7 %	>= 30 %	>= 41 Joule
<= 30 mm	>= 785 N/mm²	1.180 - 1.420 N/mm²	>= 7 %	>= 35 %	>= 41 Joule
<= 63 mm	>= 685 N/mm²	1.080 - 1.320 N/mm²	>= 8 %	>= 35 %

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