Flashcards in Metallurgy Deck (47)
Metals have iron as the major ingredients and are usually magnetic
Metals that do not have iron in large enough amount to have any major influence on the properties of metals
What is the most practical method of identifying a metal?
by visual appearance, texture and color
What are the most important properties to consider for metals?
The ability of a metal to resist penetration and plastic deformation?
The ability of a metal to deformed permanently without breaking?
The ability of a metal to withstand shock and impact without breaking or shattering is?
The ability of a metal to withstand pull without breaking is?
The ease at which you can cut and shape a metal is known as?
The most common metal material is?
What is the most common material used in the industry?
If a piece of a metal has a smooth outer surface, what might you conclude about the object?
it has been formed
If an object is irregularly shaped, what might you conclude the object?
it is a casting
What are the different ways of identifying metals?
Given two identical pieces of metals, zinc dye cast and aluminium, what would be the simplest way to identify them?
by their weight
How can you distinguish between hot rolled and cold rolled steel?
*Hot rolled steel has a black mill scale or a heat scale surface
List all carbon steel sub-groups
What are the two (2) main divisions of metals?
Low carbon steel has
.02 - .30 % carbon
Medium carbon steel has
.30 - .60 % carbon
High carbon steel has
anything over .60%
What is considered to be cast iron?
Anything over 1.7%
The three special types of allow steel are?
*high strength low allow steel (HSLA)
*quench and temper structural steel
What are the two types of high speed steel?
What are the three types of stainless steel?
*austenitic stainless steel
*ferritic stainless steel
*martensitic stainless steel
The two principal alloy for copper are?
A mixture of copper and zinc makes
A combination of copper and tin is?
The principal types of bronze are?
*silicon line bronze
*aluminium line bronze