Material 1.4961

High-temperature resisting steel and alloy

The material 1.4961 is a austenitic stainless steel and is additonally alloyed with niobium. Niobium is used to stabilize, thus the material has a very good resistance to intergranular corrosion. Furthermore, the material also hot hard and therfore often find application in heat exchangers and turbine construction.

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Standards

HDIN / EN	US-Standard	AFNOR	UNI	JIS	request
X8CrNiNb16-13	AISI 347H UNS S34709			SUS347HFB SUS347HTB SUS347HTP	request

Material Category: High-temperature resisting steel and alloy

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	-
0,04 - 0,10	0,30 - 0,60	max 1,50	max 0,035	max 0,015	15,00 - 17,00	12,00 - 14,00	Nb >= 10xC <=1,20

Mechanical Properties

vergütet
0,2% Dehngrenze (Rp0,2)	Zugfestigkeit (Rm)	Bruchdehnung (A 5,65)	Kerbschlagarbeit (DVM)	Kerbschlagarbeit KV (ISO-V/Charpy-V)	Zeitstandfestigkeit 1.000 h	Zeitstandfestigkeit 10.000 h	Zeitstandfestigkeit 100.000 h	Warmfestigkeit	bei Temperatur
								~ 650 °C
>= 205 N/mm²	510 - 690 N/mm²	>= 35 %	>= 85 Joule	>= 65 Joule					~ 20 °C
>= 175 N/mm²									~ 100 °C
>= 157 N/mm²									~ 200 °C
>= 137 N/mm²									~ 300 °C
>= 128 N/mm²									~ 400 °C
>= 118 N/mm²									~ 500 °C
>= 118 N/mm²					~ 304 N/mm²	~ 230 N/mm²	~ 170 N/mm²		~ 550 °C
>= 113 N/mm²					~ 230 N/mm²	~ 157 N/mm²	~ 94 N/mm²		~ 600 °C
					~ 167 N/mm²	~ 103 N/mm²	~ 64 N/mm²		~ 650 °C
					~ 118 N/mm²	~ 64 N/mm²	~ 34 N/mm²		~ 700 °C
						~ 44 N/mm²	~ 20 N/mm²		~ 750 °C

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