Super Invar 32-5 Alloy Rod 12.95-102.11mm Round Bar

Super Invar 32-5 Alloy Rod 12.95-102.11mm Round Bar

Length tolerance +/-2mm

Surface is raw, so scratches are normal. Item photo is just a general example

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Technical data:

Brand: Evek
Manufacturer number: Not applicable
Type: Rod, Rubstabe
Material: nickel
Possible uses: optical instruments; telescopes; laser instruments and devices; positioning devices; scientific instruments;
Characteristics: low coefficient of thermal expansion; good ductility; high oxidation resistance; good strength; easy to weld.
Additional Information:
Melting point: 8.14 g/cm³
Density: 1455°C
Alloy 32-5

Description:

  • Production time - 6-7 weeks.
  • Shipping preparation - 2-3 working days.
  • Please look at the FAQ.

Super Invar®, also known as Invar 32-5 and Alloy 32-5, is an austenitic solid solution alloy with a rubbery texture that belongs to the Invar group of nickel-iron alloys.

Super Invar® is a controlled ultra-low thermal expansion alloy that has near-zero thermal expansion at room temperature, the lowest of all low thermal expansion alloys and only half that of standard Invar at room temperature. In addition, the thermal expansion in the temperature range of 20 to 95 °C and -30 to 35 °C is lower than that of standard Invar alloy. The temperature range of Super-Invar® is limited to between -32°C and +275°C, as the material converts from austenite to martensite at temperatures below -32°F.

Standard Invar® consists primarily of nickel and iron, with small amounts of other elements. Super-Invar® consists of approx. 32% nickel, 5% cobalt and approx. 63% iron with small amounts of silicon, carbon, aluminum, sulfur, copper, chromium and manganese.

The low coefficient of thermal expansion is the most important property of all Invar alloys and especially Super Invar®. Only this feature makes it valuable and even more expensive than regular Invar.

Areas of application for Alloy 32-5 are:

  • optical instruments;
  • telescopes;
  • laser instruments and devices;
  • positioning devices;
  • scientific instruments;

Alloy 32-5 is characterized by the following features:

  • low coefficient of thermal expansion;
  • good ductility;
  • high oxidation resistance;
  • good strength;
  • easy to weld.

documentation

Data sheet (German)
1.4841
pole
Super Invar® is a controlled ultra-low thermal expansion alloy that has near-zero thermal expansion at room temperature, the lowest of all low thermal expansion alloys and only half that of standard Invar at room temperature. In addition, the thermal expansion in the temperature range of 20 to 95 °C and -30 to 35 °C is lower than that of standard Invar alloy. The temperature range of Super-Invar® is limited to between -32°C and +275°C, as the material converts from austenite to martensite at temperatures below -32°F. Standard Invar® consists primarily of nickel and iron, with small amounts of other elements. Super-Invar® consists of approx. 32% nickel, 5% cobalt and approx. 63% iron with small amounts of silicon, carbon, aluminum, sulfur, copper, chromium and manganese. The low coefficient