[pete]

in the first picture the broken part looks like the top down tube plate ??

Since it craked in the first place it could be a high carbon steel..
So not knowing what the steel is... yer just can't grap a welder and
attack it like a big dog on heat....

If I was doing the job i would use a arc "stick" welder with a
Austenic welding rod or 2nd choice would be a low hydrogen rod..

Austenic rods are one of the easyest rods to use, But
to run a low hydrogen rod you REALLY have to know how to
arc weld... or you will end with that much slag inclusion in the
weld

vee the crack .. weld it ..then back cut the weld/crack deep enough to
cut into the front weld....then do the back weld..
And DON"T force cool it......


have fun...



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