XH78T – HN77TYUR – Technische Werkstoffe

02 Product information

Details on
XH78T – HN77TYUR.

Guest	XN78T	HN70	HN75MBTU	HN77TUR
or	EI868
Classification of alloy	Heat-resistant alloy	Heat-resistant alloy	Heat-resistant alloy	Heat-resistant alloy
Brand			Inconel 625
UNS
Chemical composition, %
C	to 0.12	to 0. 1st	to 0. 1st	0.07
Si	0.8	0.8	0.8	0.6
Mn	0.7	0.3	0.4	to 0.40
Ni	foundation	65 - 71	68.5 – 77.5	foundation
Cr	19 -22	26 - 29	19 - 22	19 - 22
Ti	0.15-0.35	-	0.35 - 0.75	2.4-2.8
Al	-	2.8 - 3.5	0.35 - 0.75	0.6-1.0
Others	-	Ce to 0.03	Mo=1.8 - 2.3Nb=0.9 - 1.3	B= 0.01Ce= 0.02
Fe	1	1	3	1.0
Physical properties at 20C
Linear expansion coefficient [1/Grad] at 100C	12.2	13.14	12.4	12.67
Material density, [kg/m3] kg/m3	8400	7900	8300	8200
Specific electrical resistance, [ohm]	1090	-		1247

CHN78T application

varietal parts, pipes operating to a temperature of 1100 ° C.

XN70U application

various parts operating at moderate voltages, at 1100-1200 ° C (can be used for heating resistance elements).

HN75MBTU application

parts of gas pipeline systems, equipment, parts of combustion chambers with a limited service life at temperatures up to 950 ° C; heat-resistant alloy

HN77TUR application

discs, rings, shoulder blades and other parts, working up to 750 ° C. Heat-resistant on a nickel basis.

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