SEALVAR® (F-15 Alloy) Nickel Iron Cobalt Datasheet

Wrought Iron Alloy

Supplied by AMETEK Specialty Metals Products

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Product Description
AMETEK's Nickel-Iron-Cobalt strip, SEALVAR®, is a high quality alloy used primarily for making hermetic seals with harder glasses and ceramics. SEALVAR® is distinguished from competitive F-15 alloy by its higher purity, more closely controlled chemistry, and very low carbon level.

Advantages
Reproducible Low Level Of Reactive Impurity Elements
  • Improved die wear.
  • Improved soldering.
  • Improved bonding (cladding).
  • Predictable oxidation: Rate; Adherence; Uniformity.
  • Predictable response to other chemical surface treatment steps.
  • Lower work hardening rate.
  • Improved metal flow in coining operations.
  • Reduced stress on glass or ceramic.
General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
  • Europe
  • North America
Metals General
Nominal Value
Unit
 
Applicable Specifications
 
  
Forms Available
 
  
Metal Type
 
  
Alloy Identification
 
  
Metals Type Analysis
Nominal Value
Unit
 
Type Analysis
      
Aluminum
%
  
Carbon
%
  
Chromium
%
  
Cobalt
%
  
Copper
%
  
Iron (Balance)
%
  
Magnesium
%
  
Manganese
%
  
Molybdenum
%
  
Nickel
%
  
Silicon
%
  
Titanium
%
  
Zirconium
%
  
Metals Physical
Nominal Value
Unit
 
Density
lb/in³
  
Metals Mechanical
Nominal Value
Unit
 
Tensile Strength (Ultimate)
ksi
  
Tensile Strength (Yield), 0.2%
ksi
  
Tensile Elongation (Break) 2
%
  
Hardness (HV-Scale)
 
  
Tensile Modulus
ksi
  
Metals Thermal
Nominal Value
Unit
 
Mean Specific Heat
      
32°F
Btu/lb/°F
  
806°F
Btu/lb/°F
  
Mean CTE (86 to 752°F)
in/in/°F
  
Thermal Conductivity (100°F)
Btu·in/hr/ft²/°F
  
Metals Electrical
Nominal Value
Unit
 
Electrical Resistivity (77°F)
ohms·cir·mil/ft
  
Notes
1Typical properties: these are not to be construed as specifications.
2in 2"
 
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