Home > Glossary

Select a letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Macroetch Test:

Consists of immersing a carefully prepared section of the steel in hot acid and of examining the etching surface to evaluate the soundness and homogeneity of the product being tested.

Macrostructure:

The structure of metal as revealed by macroscopic examination.

Magnesium:

A metal known for its low density, malleability, ductility and the white light it produces when burning.

Malleability:

The property that determines the ease of deforming a metal when the metal is subjected to rolling or hammering.

Manganese:

A brittle, non-malleable metal that is used in alloys to increase hardenability and counteract the brittleness from sulfur.

Mechanical Properties:

Those properties of a material that reveal the elastic and inelastic reaction when force is applied, or that involve the relationship between stress and strain; for example, the modulus of elasticity, tensile strength and fatigue limit.

Medium-Carbon Steel:

Contains from 0.30% to 0.60% carbon and less than 1.00% manganese.

Microstructure:

The structure of polished and etched metal and alloy specimens as revealed by the microscope.

Mill Edge:

The edge of strip, sheet or plate in the as-rolled state.

Mill Finish:

A surface finish produced on sheet and plate.

Molybdenum:

A hard, tough metal that is very ductile and malleable when properly treated at high temperatures, deepens hardening, counteracts temper brittleness, enhances the corrosion resistance in stainless steel, and forms abrasion-resisting particles.