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Eisco™ Thermal Expansion Apparatus

Bar and gauge device shows expansion due to heating and contraction due to cooling.

Supplier:  Eisco™ PH0378A

Catalog No. S96187

This item has been discontinued and is no longer available. Please reach out to your sales representative.

This item is not returnable. View return policy



At normal temperature, the bar's length fits into the gauge's jaw and the bar's diameter fits into its hole. When the bar is heated, it fits neither jaw nor hole.

  • Simple apparatus is made of a mild-steel bar, 4.3L × 0.4 in. dia. (110 × 10mm), on a wooden-handled rod
  • Metal cast gauge slides over the ends of the bar
  • 0.4 in. (10mm) bore in one arm to show expansion in diameter
  • Heating expands bar length to prevent fit into gauge
  • Overall length: 11 in. (280mm)



thermal Expansion Apparatus
0.74 lb.
10.23 x 6.29 x 1.81 in. (26 x 16 x 3 cm)
For illustrating expansion by heating and contraction by cooling
0.34 kg


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