Continental Steel and Tube Company
Continental Steel and Tube Company
P.O. BOX 030040
Fort Lauderdale, FL, 33303
Phone: 954.332.2290
Fax: 954.332.2296
Email: Sales@ContinentalSteel.com
Website: www.continentalsteel.com
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Invar® 42 is a nickel-iron, controlled-expansion alloy containing 42 percent nickel. It has a low and nominally constant coefficient of thermal expansion form room temperature to about 570°F (300°C). Invar® 42 is used for semiconductor lead frames in integrated circuits, bi-metal thermostat strip, thermostat rods, for ceramic-to-metal seals with alumina ceramics, and various glass-to-metal seals such as the core of copper-clad wire for sealing into glass envelopes of electric bulbs, radiomore
Unit of Measure

Specifications

Material

 Invar®

Shapeform

 Plates

Thickness

 3/8 inches

Thickness

 0.375 inches9.5250 mm

Nickel Alloy Compositions

Alloy

 Invar® 42

Basic Composition

 42.0 % Nickel 58.0% Iron

Density

 0.293 lbs/in³8.11 g/cm³

ASTM Specification

 ASTM F30 UNS K94100

Typical Mechanical Properties

Tensile Strength

 71000 psi490 MPa

Yield Strength (0.2% Offset)

 36000 psi250 MPa

Elongation

 43 %

Melting Temperature Range

 2615 ºF1435 ºC