Welding 1018 or 1045 round bar to a572 plate

By smorse Date 04-02-2012 17:42

I need to weld some 2" round bar that is either 1018 or 1045 to some 1/2" plate that is A572 any suggestions? on procedure?

By devo

Date 04-02-2012 20:14 Edited 04-02-2012 20:17

To quote a line from THX 1138 [George Lucas's first film]
"Could you be more.....specific?"

By 803056

Date 04-02-2012 20:56

What grade of ASTM A572 are you welding?

AISI 1045 merchant grade steel has a carbon content of about 0.45%. That is on the high side of what I would like to see for the carbon. I like to see it 0.3% or less.

The filler metal will be dictated by the grade of ASTM A572 you are using. You can undermatch the filler metal to match the lower strength A572 as long as you use a low hydrogen technique (fresh EXX18 or bare filler metal) and high preheat.

Best regards - Al