The Materials You Need When You Need Them

Alloy 52 (aka Pernifer 502, NILO 504, Glass Seal 521)

A controlled expansion alloy, consisting of 51% Nickel, balance Iron; used in a wide variety of electronic applications, especially for glass seals.

Alloy 52 Products

Ed Fagan Inc. stocks Alloy 52 in a variety of forms and dimensions. Below are most of the standard stock form/sizes. If you do not see the size or form of Alloy 52 that you require, 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 52 to your exact specifications, and we also have tremendous versatility when it comes to custom sizes, packages, and unusual materials.

Alloy 52 Rod

Alloy 52 Rod Diameter

Alloy 52 Rod Diameter

.040” Alloy 52 Rod

.156” Alloy 52 Rod

.058” Alloy 52 Rod

.187” Alloy 52 Rod

.060” Alloy 52 Rod

.1875” Alloy 52 Rod

.0625” Alloy 52 Rod

.250” Alloy 52 Rod

.066” Alloy 52 Rod

.500” Alloy 52 Rod

.093” Alloy 52 Rod

 

 

Alloy 52 Plate Annealed -- Call for Plate Sizes

 

Alloy 52 Strip/Coil Annealed

Alloy 52 Strip/Coil Thickness

Alloy 52 Strip/Coil Thickness

.010” Alloy 52 Strip/Coil

.015” Alloy 52 Strip/Coil

 

Applications

Glass to metal seals for electronic tubes, automotive and industrial lamps, and specialty hermetic devices.

Alloy 52 Properties

 

Alloy 52 Physical Properties

Density

lb/cu in

0.3

Specific Gravity

 

8.3

Curie Temp

°F

986

 

°C

530

Melting Point

°F

2600

 

°C

1427

Electrical Resistivity

Micro-ohm-cm

44

 

ohm-cir mil/ft

258

Thermal Conductivity

W/cm °C

0.14

 

BTU-in/sq. ft-hr-

97

Specific Heat

Cal/g- °C

0.12

 

BTU/lbm- °F

0.12

Thermal Expansion

ppm / °F (75°F to 842°F)

5.5

 

ppm / °C (25°C to 450°F)

9.9

 

Alloy 52 Mechanical Properties

Tensile Strength

ksi

80

 

MPa

552

Yield Strength

ksi

40

 

MPa

276

Elongation

% in 2 in.

35

Typical Hardness Ann.

Rockwell HRB

80

Modules of Elasticity

Mpsi

23

 

kMPa

159


Alloy 52 Chemistry

maximum % unless noted

Iron

Bal

Nominal Nickel

50.5

Nominal Cobalt

--

Carbon

0.05

Silicon

0.30

Sulfur

0.025

Chromium

0.025

 

Alloy 52 Specifications

ASTM F-30

MIL 1-23011 CL 2

AMS 1-23011 CL 2

 

Alloy 52 Linear Coefficient of Thermal Expansion

Degree C

 

Degree C

 

30-100

10.5

30-450

9.6 - 10.7

30-150

10.5

30-475

10.1

30-200

10.4

30-500

10.0

30-250

10.4

30-525

10.4

30-300

10.2

30-550

10.2 - 10.7

30-325

--

30-600

10.8

30-350

10.2

30-700

11.7

30-375

--

30-800

12.5

30-400

10.1

30-900

13.3

30-425

--

30-1000

14.2

 

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