Tool steel is

If iron contains more than 2.2 percent carbon, it is no longer called steel. It is called __________________.

Martensite steel is

Bonus #2 (2 points)   If a material stretches very little before it fractures, it is said to be ______________?

________________ steel contains large amount of nickel and small amounts of carbon.  Generally, this steel contains 18-25% nickel.  It can be stretched by 11% of its original size before breaking.  

Which of the following is not a type of hardness testing?

Which of these is not true of annealing?

303 stainless steel

Ferrite or Pearlite is usually the condition of steel before heat treating.

A diamond penetrator known as a brale is used for testing hard materials on Rockwell B scale.