When welding medium carbon steel plates over 100mm in thickness would the basic electrodes require any pre treatment before use? a) None if they were in a vacuum pack opened 8 hours prior to use b) None if they were in a sealed vacuum pack prior to use c) Heat to 500 °C for 2 hours if used outside d) Baked at 150°C for 4hours prior to use

When welding medium carbon steel plates over 100mm in thickness would the basic electrodes require any pre treatment before use?
a) None if they were in a vacuum pack opened 8 hours prior to use
b) None if they were in a sealed vacuum pack prior to use
c) Heat to 500 °C for 2 hours if used outside
d) Baked at 150°C for 4hours prior to use
by

1 Answer

Answer :

b) None if they were in a sealed vacuum pack prior to use
by

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