Alloy 45

Source：http://www.zytcsteel.com Time：2023/3/11 17:03:57 View：

Description:

2.4889 (alloy 45 TM) is chiefly used in high-temperature applications with extremely corrosive media.

With a relatively constant rate of thermal expansion to about 800°F (538°C), low expansion 45 Alloy has been used in thermostats, and its thermal expansion is similar to some alumina ceramics. High permeability 45 Alloy is a 45% nickel-iron alloy capable of exhibiting a high initial permeability and has been used predominantly in the telecommunications industry. National Electronic Alloys does not sell the High Permeability version of 45 Alloy.

Chemical Composition:

C ≤ %	Si %	Mn ≤ %	P ≤ %	S* ≤ %	Cr %	Mo %	Ni %	V %
0,05-0,12	2,5-3,0	1,0	0,02	0,011	26,0-29,0		45,0 min.
Nb %	Ti %	Al ≤ %	Co %	Cu ≤ %	N %	Fe %	Ce %	Y %
		0,2		0,3		21,0-25,0	0,03-0,08

Physical properties:

Property	Value
Density: kg/dm³	8,0
Hardness: HB	<=220
Permeabilität bei 20°C	max.1,003

Temperature T °C/F (°C/F)	Specific heat J / kgK (Btu / lb °F)	Thermal conductivity W/mK (Btu·in / ft²·h·°F)	Electric resistance μΩ · cm (Ω circ mill / ft)	Modulus of elasticity kN/mm² (10³ ksi)	Expansion rate from 70°F bis T 10^-6 / K (10^-6 / °F)
20/68	500 (0,12)	10,8 (75	118 (710)	193 (28,0)
100/212		12,1 (84)	120	187	13,0
300/572 316/600		15,4 (107)	126 (761)	171 (24,8)	14,9 (8,3)
500/932 538/1000		18,6 (129)	128 (778)	154 (22,3)	15,7 (8,8)
800/1472 871/1600		23,3 (162)	134 (815)	122 (16,1)	17,0 (9,6)
900/1652 982/1800		24,8 (172)	136 (824)	108 (14,2)	17,3(9,3)
1000/1832	540 (0,13)	26,4 (183)	137	96	17,8

Application:

l Oil ash corrosion

l Incineration gases

l Sulfur dioxide

l Caustic solution corrosion

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