Super Alloy Ulbraseal 42-6

Topics Covered

Introduction
Chemical Composition
Physical Properties
Thermal Properties
Fabrication and Heat Treatment
     Machinability
     Forming
     Welding
     Forging
     Cold Working
     Annealing
     Hardening
Other Designations
Applications

Introduction

Ulbraseal 42-6 is an iron-nickel alloy containing approximately 6% chromium. It belongs to the family of glass sealing alloys and has the same coefficient of expansion as 0120 glass.

The following datasheet will discuss in detail about Ulbraseal 42-6 alloy.

Chemical Composition

The chemical composition of Ulbraseal 42-6 alloy is outlined in the following table.

Element Content (%)
Nickel, Ni 42
Chromium, Cr 5.6
Silicon, Si 0.3
Manganese, Mn 0.25
Aluminum, Al 0.2
Carbon, C 0.07
Iron, Fe Balance

Physical Properties

The following table shows the physical properties of Ulbraseal 42-6 alloy.

Properties Metric Imperial
Density 8.2 g/cm3 0.29 lb/in3
Melting point 1430°C 2600°F

Thermal Properties

The thermal properties of Ulbraseal 42-6 alloy are given in the following table.

Properties Metric Imperial
Thermal expansion co-efficient 6.55 µm/m°C 3.64 µin/in°F

Fabrication and Heat Treatment

Machinability

Conventional machining techniques can be used to machine these alloys.

Forming

Ulbraseal 42-6 alloy has good ductility and formability.

Welding

The alloy can be welded using conventional methods.

Forging

The alloy can be forged at 1204°C (2200°F). Care should be taken to prevent contamination of alloy due to sulfur in a furnace atmosphere.

Cold Working

The alloy has good ductility, and it can be readily cold-worked.

Annealing

Ulbraseal 42-6 alloy can be annealed at 788°C (1450°F) followed by air cooling.

Hardening

The alloy can be hardened due to cold working.

Other Designations

An equivalent designation to Ulbraseal 42-6 alloy includes ASTM F31-68.

Applications

The following are the list of applications of Ulbraseal 42-6 alloy:

  • Glass sealing of double pane windows
  • Cathode ray tubes

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