Question

Chapter 7: Ferrous Metals and Alloys

All steel is _________.

a. structural    b. deoxidized   c. recyclable d. degasified

List three classifications of Cast Irons.

List three classifications of Plain-Carbon Steels.

List three classifications of Alloy Steels.

Steel is _________ which allows for easy separation and recycling.

a. strong     b. solid     c. magnetic       d. metallic

Steel is an extremely useful engineering material, offering _______________, _______________, and ________________.

Steel must undergo a change from ___________ to solid regardless of how it is processed.

a. molten    b. liquid     c. aqueous    d. dissolvable

The primary role of an alloy addition, therefore, is usually to increase __________.

a. recyclability     b. hardenability     c. weldability    d. none of the above

List four common alloying elements.

It is not uncommon for the finishing processes to be the most expensive and time-consuming stages of manufacturing, therefore, an alternative is to use ____________ sheet.

a. magnetic      b. maraging       c. an amorphous     d. none of the above

Answer 1

1. Steel is most recyclable element present on the earth.Almost all steels are recyclable.

2. Gray cast iron, white cast iron and malleable cast iron are the three types.

3. Broadly classified, there are three types of plain carbon steel:
(i) Mild Carbon Steel ( also known as Low Carbon Steel)
(ii) Medium Carbon Steel
(iii) High Carbon Steel

4. Alloy steel is primarily categorized by alloy or alloy percentage.

Majorly, there are low alloy steel,medium alloy steel and high alloy steel.