Controlled / Low Expansion Alloy Metal Sheet

Controlled Thermal Expansion Alloys -- Alloy 29-17 Kovar®
from Ulbrich Stainless Steels & Special Metals, Inc.

Strip, Coil, Foil & Wire, ASTM F-15. APPLICATIONS. Alloy 29-17 (Kovar ®) has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials. This alloy has found wide use in application where high reliability is a necessity. In power tubes, microwave tubes,... [See More]

  • Features: Coil Stock; Wrought; Cold Finished, Rolled or Cold Drawn; Hot Rolled (optional feature); Controlled / Low Expansion Alloy; Corrosion Resistant; Die / Cold Work
  • UNS Number: 94610
  • Type: Alloy; Miscellaneous Ferrous Alloy
  • Specifications: ASTM / ASME; UNS
Controlled Expansion Alloy Alloy 52
from Leading Edge Metals & Alloys, Inc.

Alloy 52 is a nickel-iron alloy with a thermal expansion rate similar to soft glasses and ceramics. Typical applications include voltage regulators, conductors, and glass-to-metal hermetic seals. [See More]

  • Features: Controlled / Low Expansion Alloy
  • Thickness: 1.00E-3 to 2
  • Type: Nickel; Alloy
  • Width / OD: 12 to 24
Control Expansion/Glass Seal Sheet/Plate -- ASTM F-15
from Ed Fagan, Inc.

ASTM F-15 Alloy, commonly known as Kovar, is a controlled expansion alloy consisting of 29% Nickel, 17% Cobalt, and balance Iron. Kovar is produced to ensure good properties for machining and deep drawing as well as porosity free product. Its expansion characteristics match both borosilicate (Pyrex)... [See More]

  • Features: Wrought; Cold Finished, Rolled or Cold Drawn; Controlled / Low Expansion Alloy; Corrosion Resistant
  • UNS Number: 94610 to 94630
  • Type: Miscellaneous Ferrous Alloy
  • Specifications: AMS; ASTM / ASME; MIL-SPEC / QQS; UNS; F-15, F-1466, Mil-I-23011C Class 1, 7726B, 7727, 7728C
Controlled Expansion Alloy Kovar®
from Leading Edge Metals & Alloys, Inc.

Composed of iron, nickel and cobalt, Kovar ®1 has thermal expansion characteristics similar to hard glass, making it an excellent choice for glass-to-metal hermetic seals. Kovar ® is widely used in the electronics industry. [See More]

  • Features: Controlled / Low Expansion Alloy
  • Thickness: 1.00E-3 to 2
  • Type: Cobalt; Nickel; Refractory / Reactive; Alloy
  • Width / OD: 12 to 24
Control Expansion/Glass Seal Sheet/Plate -- Electronic Nickel
from Ed Fagan, Inc.

Commercially pure, un-alloyed Nickel; used in electronics for packaging, leads, and lids. [See More]

  • Features: Wrought; Cold Finished, Rolled or Cold Drawn; Controlled / Low Expansion Alloy; Corrosion Resistant
  • Width / OD: 0.0050 to 2
  • Type: Nickel; Pure, Unalloyed or Very Low Alloy Additions
  • Applications: Electronics or semiconductors
Low Expansion Alloy Invar® 36
from Leading Edge Metals & Alloys, Inc.

With an extremely low coefficient of thermal expansion, approximately one-tenth that of carbon steel at temperatures up to 400 ° F, Invar ® is often thought of as the material of choice for low expansion nickel alloy applications. The ability to maintain strength at very low temperatures... [See More]

  • Features: Controlled / Low Expansion Alloy
  • Thickness: 1.00E-3 to 2
  • Type: Nickel; Alloy
  • Width / OD: 12 to 24
Control Expansion/Glass Seal Sheet/Plate -- Invar 36
from Ed Fagan, Inc.

Invar is a low expansion alloy, consisting of 36% Nickel, balance Iron. This alloy exhibits extremely low expansion around ambient temperatures and is often used where minimum expansion is required. Invar was originally used for surveying tapes. The name Invar is a variant of Invariant, a reference... [See More]

  • Features: Wrought; Cold Finished, Rolled or Cold Drawn; Controlled / Low Expansion Alloy; Corrosion Resistant
  • UNS Number: 93601 to 93602
  • Type: Miscellaneous Ferrous Alloy
  • Specifications: ASTM / ASME; MIL-SPEC / QQS; UNS; A-658, B-753, Mil-I-23011C Class 7, F-1684 (96) Mil-S-16598B
Controlled Expansion Alloy for Glass Seals -- Alloy 42-6
from Ed Fagan, Inc.

A controlled expansion alloy, consisting of 42% Nickel, 6% Chromium, balance Iron; used in a wide variety of electronic applications, especially for glass seals. [See More]

  • Features: Wrought; Cold Finished, Rolled or Cold Drawn; Controlled / Low Expansion Alloy; Corrosion Resistant
  • Specifications: ASTM / ASME; MIL-SPEC / QQS; F-30, Mil-I-23011C Class 6
  • Type: Miscellaneous Ferrous Alloy
  • UTS: 80000
Controlled Expansion Strip/Coil -- Alloy 46
from Ed Fagan, Inc.

A controlled expansion alloy, consisting of 46% Nickel, balance Iron; used in a variety of electronic applications, especially for glass and ceramic seals. [See More]

  • Features: Coil Stock (optional feature); Wrought; Cold Finished, Rolled or Cold Drawn; Controlled / Low Expansion Alloy; Corrosion Resistant
  • Specifications: AMS; ASTM / ASME; MIL-SPEC / QQS; F-30, Mil 1-23011 Class 4, AMS 1-23011 Class 4
  • Type: Miscellaneous Ferrous Alloy
  • UTS: 80000