Yield point

YIELD POINT Y001

The point where the stress on the metal causes it to move and pass from the elastic range, through the yield point, to the plastic range where it loses its memory.

Every metal has a yield point where this loss of memory occurs.

Here are the yield points for a few of the common materials we use in mechanical seals. As you would expect, the yield point of a metal changes with its temperature.

MATERIAL
YIELD x 103 PSI
316 Stainless steel
30-42 at 70°F
Aluminum
6 at 70°F
Carbon steel
40-55 at 70°F
Carpenter 20 cb
40-55 at 70°F
Hastelloy C
51-191 at 70°F
Inconnel
30-50 at 70°F
Monel
15-30 at 70°F
Titanium
45-73 at 75°F

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Posted

  • On February 17, 2018