RSMatco Inc. - O - Glossary

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Glossary
Boiler and boiler tube industry terms and their definitions.

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Term	Definition
Ovality	The difference between the maximum and minimum outside diameters of any one cross section of a tube. It is a measure of deviation from roundness.

Oxalic Acid Etch Test	A quick metallographic test which is sometimes used to screen stainless steels before intergranular corrosion testing. This test is specified with a referee test such as the Copper-Copper Sulfate or Huey test.

Oxidation	"In its simplest terms, oxidation means the combination of any substance with oxygen. Scale developed during heat treatment is a form of oxidation."

Oxide	A compound consisting of oxygen and one or more metallic elements.

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