Diagram
Term #1
Terms #2
Illustration
Need to Know
100
Name #1
What is Weld Size, or "Leg"
100
Containing iron. Examples: Carbon steel, low alloy steels, stainless steel,
What is Ferrous
100
High temperature crystal structure of carbon steel or the room temperature structure of chrome-nickel steel.
What is Austenite
100
Name #1
What is Core
100
What is #7
What is Arc
200
Name #2
What is Throat
200
Containing NO iron. Examples: Aluminum, copper, copper alloys
What is Non-Ferrous
200
The science and technology of extracting metals from their ores, refining them, and preparing them for use.
What is metallurgy
200
Name #2
What is Flux
200
Name #8
What is Slag
300
Name #3
What is Face
300
Operation of quenching steels from the austenitic temperature range so as to produce martensite or a hard structure.
What is Heat treatment
300
An alloy of mostly iron with low content of alloying elements such as carbon and manganese.
What is mild steel
300
Name #3
What is Shielding Gas "Fume Plume"
300
Name #9
What is Weld
400
Name #4
What is Toe
400
A structure resulting from transformation of austenite at temperature considerably below the usual range, achieved by rapid cooling
What is martensite
400
Heat applied to the base metal after welding or cutting, for the purpose of tempering, stress-relieving, or annealing.
What is Post-heating
400
Name #4
What is Weld Puddle
400
The changes in the crystalline structure of metals caused by temperature and time.
What is Transformation
500
Name #5
What is Weld Size or Leg
500
Eutectoid alloy or iron and 85% carbon consisting of layers or plates or ferrite and cementite.
What is pearlite
500
The heating of the parts of a structure to be welded or before welding is started to minimize thermal shock and of slowing the cooling rate
What is Preheat
500
Name #5
What is Base Metal
500
The temperature at which the crystal structure of the steel changes, usually about 1600 degrees F
What is Transformation Temperature
600
Name #6
What is root
600
Chemical compound of iron and carbon, containing 93.33% iron combined with 6.67% carbon by weight; also called iron carbide.
What is Cementite
600
The resistance of a material to a force which is acting to pull it apart
What is Tensile Strength
600
Name #6
What is depth of Penetration
600
The temperature at which the crystal structure of steel changes, usually in the range of 1500-1600 degrees F
Transition Temperature