chapter 28 completion

______________________________ steels contain other metal elements to make them harder, tougher, and stronger.

alloy

Carbon is the primary ______________________________ element in carbon steel.

alloying

Carbon steels are classified according to the amount of ______________________________ they contain.

carbon

______________________________ is an alloy of iron and carbon.

carbon steel

Brass and bronze are ______________________________-based alloys.

copper

Iron and steel are classified as ______________________________ metals.

ferrous

Low-carbon steels do not contain enough carbon to be ______________________________.

hardened

Cutting tools are often made from ______________________________ steel because it possesses red hardness and abrasion resistance.

high-speed

Nickel-based alloys, molybdenum, tantalum, and tungsten are classified as ______________________________ metals.

high-temperature

Low-carbon steel is often called mild or ______________________________ steel.

machine

__________________________ alloys are the lightest of the structural metals.

magnesium

Aluminum, magnesium, and titanium are classified as ______________________________ metals.

nonferrous

Base metals are pure, ______________________________, nonprecious metals.

nonferrous

The carbon content in carbon steel is measured in percentage or in ______________________________.

points

_____________________________ steels are corrosion resistant.

stainless

______________________________ steel is the term applied to steels found in devices that cut, shear, or form materials.

tool