Controlled Expansion Alloys

NAS 22-3

A material with a high coefficient of thermal expansion, NAS 22-3 has superior characteristics for use in bimetals and trimetals. Nippon Yakin supplies this product in coil and sheet forms.

  • Image: Coil
    Coil
  • Image: Sheet
    Sheet

Designation / Standard

Nippon Yakin Grade ASTM EN JIS
NAS 22-3 ― ― ―

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Chemical Composition

  C Si Mn P S Ni Cr Fe
Min ― ― ― ― ― 21.5 3.0 ―
Max 0.080 0.35 1.0 0.025 0.020 22.5 4.0 Balance

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Physical Properties

Specific resistivity (μΩ･cm) 20℃ 75
Coefficient of thermal expansion (10-7/℃) 30–100℃ 195

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Features

NAS 22-3 can be clad rolled or welded with an alloy having a low coefficient of thermal expansion to produce bimetals.

Applications

Bimetal products

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