Welding electrodes Mod 6 part 1

The arc at the end of an electrode melts the metal core, flux coating , and base metal simultaneously at temperature exceeding ___________ degrees F

• 5000

• 6000

• 7000

• 8000

_____________ are (is) normally added to electrodes so the deposited weld metal will match the base metal chemical composition.

• Fluxes

• chemicals

• alloys

• iron powder

Most carbon steel electrodes are covered by AWS A______

• 5.0

• 5.1

• 5.3

• 5.4

Electrodes used to weld low alloy and high strength steels are covered in AWS A ___________

• 5.1

• 5.2

• 5.4

• 5.5

The first 2 or 3 digits of a covered electrode are multiplied by ___________ to determine the tensile strength.

• 10

• 100

• 1000

• 10000

An E6027 electrode can be used these positions

• flat only

• flat and horizontal fillet welds only

• flat and vertical only

• all

The last digit of an electrode designates ________

• flux coating

• AWS classification

• position it can be used

• varies by manufacturer

Low hydrogen electrodes are designated with the digits ______,______, and _________

• 5, 7, 8

• 4, 6, 8

• 3, 5, 7

• 5,6,8

An E6010 can be welded with ____________

• DCEN

• DCEP

• AC

• AC, DCEP

Electrodes in the Fast Fill group (F1) have a flux coating containing _____________________________

• Cellulose

• Iron Powder

• Sodium

• Carbon