Material 1.4878

Heat-resisting steel

The material 1.4878 is an austenitic heat-resistant steel. 1.4878 iss scale resistant up to 850 °C / 1562 °F. The resistance in oxidizing and redusing atmospheres is low.

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Standards

HDIN / EN	US-Standard	AFNOR	UNI	JIS	request
X8CrNiTi18-10 X12CrNiTi18-9	AISI 321H UNS S32109				request

Material Category: Heat-resisting steel

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	-
max 0,10	max 1,00	max 2,00	max 0,045	max 0,015	17,00 - 19,00	9,00 - 12,00	Ti >= 5xC <= 0,80

Mechanical Properties

DIN EN 10095 (12/2018 (05/1999)) Hitzebeständige Stähle und Nickellegierungen.
Zeitdehngrenze 1.000 h (Rp 1,0)	Zeitdehngrenze 10.000 h (Rp 1,0)	Zeitstandfestigkeit 1.000 h	Zeitstandfestigkeit 10.000	Zeitstandfestigkeit 100.000 h	bei Temperatur
~ 110 N/mm²	~ 85 N/mm²	~ 200 N/mm²	~ 142 N/mm²	~ 65 N/mm²	~ 600 ° C
~ 45 N/mm²	~ 30 N/mm²	~ 88 N/mm²	~ 48 N/mm²	~ 22 N/mm²	~ 700 ° C
~ 15 N/mm²	~ 10 N/mm²	~ 30 N/mm²	~ 15 N/mm²	~ 10 N/mm²	~ 800 ° C

Flacherzeugnisse
lösungsgeglüht	Bruchdehnung (A5, 65)	Probenlage	bei Temperatur
0,5 - 3 mm	>= 40 %	längs	~ 20 ° C
0,5 - 3 mm	>= 40 %	quer	~ 20 ° C
>= 3 mm	>= 40 %	längs	~ 20 ° C
>= 3 mm	>= 40 %	quer	~ 20 ° C
lösungsgeglüht	0,2% Dehngrenze (Rp0,2)	1% Dehngrenze (Rp1,0)	Zugfestigkeit (Rm)	Härte [HB]
<= 75 mm	>= 190 N/mm²	>= 230 N/mm²	500 - 720 N/mm²	<= 215 HB

Langerzeugnisse
lösungsgeglüht	Bruchdehnung (A5, 65)	bei Temperatur
<= 25 mm	>= 40 %	~ 20 ° C

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