Material 1.4903

High-temperature resisting steel and alloy

The material 1.4903 is a high-temperature steel. This steel can be used up to a maximum temperature of approx. 650 C°. A typical area of application for 1.4903 is power plant construction. Valve housings are often made of 1.4903.

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Standards

HDIN / EN	US-Standard	AFNOR	UNI	JIS	request
X10CrMoVNb9-1	ASTM A182F91 UNS S50460 UNS S59180				request

Material Category: High-temperature resisting steel and alloy

Chemical Composition

C %

Si %

Mn %

P %

S %

Al %

Cr %

Cu %

Mo %

N %

Nb %

Ni %

V %

Zr %

0,08 - 0,12

max 0,50

0,30 - 0,60

max 0,025

max 0,015

0,0400

8,00 - 9,50

max 0,30

0,85 - 1,05

0,030 - 0,070

0,060 - 0,100

max 0,40

0,18 - 0,25

max 0,010

Mechanical Properties

vergütet
Streckgrenze (Re)	Zugfestigkeit (Rm)	Bruchdehnung (A5, 65)	Zeitstandfestigkeit 10.000 h	Zeitstandfestigkeit 100.000 h	bei Temperatur
>= 450 N/mm²	620 - 850 N/mm²	>= 20 %			~ 20 ° C
>= 410 N/mm²					~ 100 ° C
>= 380 N/mm²					~ 200 ° C
>= 360 N/mm²					~ 300 ° C
>= 340 N/mm²					~ 400 ° C
>= 300 N/mm²					~ 500 ° C
>= 270 N/mm²			~ 199 N/mm²	~ 162 N/mm²	~ 550 ° C
>= 215 N/mm²			~ 122 N/mm²	~ 90 N/mm²	~ 600 ° C
			~ 70 N/mm²	~ 44 N/mm²	~ 650 ° C

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