SMAW ELECTRODES
The bead in SMAW is formed by the
Flux coating
An example of a deep-penetrating SMAW electrode, such as one that would be used for poorly prepared surfaces or joints, is
E6010 or E6011
Which of the following electrodes would be the best choice for medium- or high-carbon steels
E7018
What does tensile strength refer to?
How many lbs it takes to pull that material apart
What do the last two numbers indicate in the 4-digit electrode numbering system?
Flux Covering
which American Welding Society (AWS) specification (s) cover the most common electrodes for welding carbon (mild) steel and low-alloy, high strength steels?
A5.1 and A5.5
Welding in vertical and overhead position should not be attempted with SMAW electrodes larger then 3/16" in diameter unless the electrode is classified as
low-hydrogen (F4)
Give one example of type of coating found in an electrode.
Sodium, potassium, iron powder, titania
Welding current is transferred from the electrode holder and into the workpiece through the
wire core of the electrode
An electrode that is carefully manufactured to contain little or no moisture is called a (n)
Low-hydrogen electrode
The rated tensile strength of the deposited weld metal from an E7018 electrodes is
70,000 psi
After a sealed container of low-hydrogen SMAW electrodes must be stored in an appropriate oven at a minimum temperature setting of
250 - 300
All-position electrodes that provide deep penetration belong to which electrode group?
F3 fast-freeze
In E7018-1H4 R what does the HX represent?
Low Hydrogen
Name one of the four different types of electrodes.
Low hydrogen, fast freeze, fast fill, fill freeze
When where SMAW Electrodes invented?
1930s
Low-hydrogen electrodes that have been exposed to liquid water should be
disposed of
What does the third number indicate in the 4-digit electrode numbering system
Position
The process in which water vapor from the atmosphere returns to its liquid state is called
Condensation
What does AWS stand for?
American Welding Society
What does the "E" stand for in E7018
Electrode
How many times can electrodes that have exceeded their maximum period exposure be dried
once
What is the range of normal electrode size?
1/16 - 1/14
Welding upward or downward is called
Vertical welding
In E7018-1 H4 R, what does the R stand for?
Moisture Resistant