Alloy 46 Controlled Expansion Alloy

Alloy 46 (aka Pernifer 46², NILO 46⁴, and Glass Seal 46¹) controlled expansion alloy, consisting of 46% Nickel, balance Iron; used in a variety of electronic applications, especially for glass and ceramic seals.

Alloy 46 Products

Ed Fagan Europe Ltd. can provide Alloy 46 when requested. Please call one of our materials experts; our sales people are very knowledgeable and can assist you. We can cut, slit, shear, or center less grind Alloy 46 to your exact specifications, and we also have tremendous versatility when it comes to custom sizes, packages, and unusual materials.

Alloy 46 Strip/Coil Annealed -- Available on Request

Applications

Glass to metal seals for electronic tubes and hermetic devices.

Alloy 46 Properties

Alloy 46 Physical Properties
Density	lb/cu in	0.295
Specific Gravity		8.17
Curie Temp	°F	860
	°C	460
Melting Point	°F	2600
	°C	1427
Electrical Resistivity	Micro-ohm-cm	47
	ohm-cir mil/ft	277
Thermal Conductivity	W/cm °C	0.11
	BTU-in/sq. ft-hr-	79.2
Specific Heat	Cal/g- °C	0.12
	BTU/lbm- °F	0.12
Thermal Expansion	ppm / °F (75°F to 842°F)	4.4
	ppm / °C (25°C to 450°F)	7.9

Alloy 46 Mechanical Properties
Tensile Strength	ksi	80
	MPa	552
Yield Strength	ksi	35
	MPa	242
Elongation	% in 2 in.	30
Typical Hardness Ann.	Rockwell HRB	80
Modulus of Elasticity	Mpsi	23
	kMPa	159

Alloy 46 Chemistry
maximum % unless noted
Iron	Bal
Nominal Nickel	46
Nominal Cobalt	--
Carbon	0.05
Silicon	0.30
Sulfur	0.025
Chromium	0.025

Alloy 46 Specifications
ASTM F-30	MIL 1-23011 CL 4	AMS 1-23011 CL 4

Alloy 46 Linear Coefficient of Thermal Expansion
Degree C		Degree C
30-100	8.2	30-450	7.9
30-150	8.1	30-475	--
30-200	7.9	30-500	8.2 - 8.9
30-250	7.8	30-525	--
30-300	7.5	30-550	9.3
30-325	--	30-600	9.8
30-350	7.1 - 7.8	30-700	10.7
30-375	7.5	30-800	11.6
30-400	7.5	30-900	12.5
30-425	7.6	30-1000	13.4

ED FAGAN Europe Ltd. supplies the highest quality special purpose metals and alloys for Aerospace/Aviation, Defence, Magnetic, Electronics, Telecommunications, Lighting, Optical, Ceramics, Heat Treating, Medical, and other high-technology industries.

1. Trademark Carpenter Technology Corp., Reading PA
2. Trademark ThyseenKrupp-VDM, Germany
4. Trademark Special Metals Corporation, USA

Controlled Expansion Alloys

Ed Fagan Europe Ltd. stocks a variety of similar alloys for low expansion, controlled expansion, glass-to-metal or ceramic sealing applications that may also satisfy your needs. EFI carries:
Invar
Kovar
42 Alloy
42-6 Alloy
46 Alloy
48 Alloy
52 Alloy

And we also have a large selection of other types of specialty metals and alloys for high technology applications, including:
Electrical/Electronic Nickel
Soft Magnetic Alloys
Refractory Metals and Alloys
Hard to Find Materials