The Materials You Need When You Need Them

Alloy 46 (aka Pernifer 462, NILO 464, Glass Seal 461)

A 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 Inc. 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

Modules 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 INC. supplies the highest quality special purpose metals and alloys for Aerospace/Aviation, Defense, Electronics, Magnetic, Medical, Lighting, Optical, Telecommunications, Ceramics, Heat Treating, 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 Inc. 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
Super Invar
Kovar
42 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