Material 1.4724

Heat-resisting steel

The material 1.4724 is a heat resistant ferritic steel. This material is resistant to scaling up to a maximum temperature of about 850 °C / 1562 °F. 1.4724 is also known under the name Sicromal 9.

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Standards

HDIN / EN	US-Standard	AFNOR	UNI	JIS	request
X10CrAlSi13 X10CrAl13					request

Material Category: Heat-resisting steel

Chemical Composition

C %	Si %	Mn %	P %	S %	Al %	Cr %
max 0,12	0,70 - 1,40	max 1,00	max 0,040	max 0,015	0,7000 - 1,2000	12,00 - 14,00

Mechanical Properties

DIN SEW 470 (02/1976) Hitzebeständige Walz- und Schmiedestähle.
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
~ 80 N/mm²	~ 50 N/mm²	~ 160 N/mm²	~ 100 N/mm²	~ 55 N/mm²	~ 500 ° C
~ 27,5 N/mm²	~ 17,5 N/mm²	~ 55 N/mm²	~ 35 N/mm²	~ 20 N/mm²	~ 600 ° C
~ 8,5 N/mm²	~ 4,7 N/mm²	~ 17 N/mm²	~ 9,5 N/mm²	~ 5 N/mm²	~ 700 ° C
~ 3,7 N/mm²	~ 2,1 N/mm²	~ 7,5 N/mm²	~ 4,3 N/mm²	~ 2,3 N/mm²	~ 800 ° C
~ 1,8 N/mm²	~ 1 N/mm²	~ 3,6 N/mm²	~ 1,9 N/mm²	~ 1 N/mm²	~ 900 ° C

Flacherzeugnisse
geglüht	0,2% Dehngrenze (Rp0,2)	Zugfestigkeit (Rm)	Bruchdehnung (A5, 65)	Härte [HB]	Probenlage	bei Temperatur
>= 3 mm			>= 15 %		längs/quer	~ 20 ° C
5 - 15 mm			>= 13 %		quer	~ 20 ° C
0,5 - 3 mm			>= 13 %		längs	~ 20 ° C
<= 12 mm	>= 250 N/mm²	450 - 650 N/mm²		<= 192 HB		~ 20 ° C

Langerzeugnisse
geglüht	Bruchdehnung (A5, 65)	bei Temperatur
<= 12 mm	>= 15 %	~ 20 ° C

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