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welding boiler plate

hi gang, the shop owner where i work has been asked to repair an old (1870's)steam driven tractor with a crack in the boiler firebox. the fire box sits inside a larger box. the space between the two is filled with water during normal boiler operation.the firebox is of riveted construction. what would be the best way to repair the cracks? mig or tig? should the space between be filled with argon? i am not sure of the metal thickness. any input would be appreciated cj

Reply to
cj
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If the plate you are welding touches water, it is likely under full boiler pressure. I don't know what the 1870's unit runs but the 1900 versions run 100psi with a 125psi safety valve. And all of these need a state pressure boiler inspection and license.

The plate in an 1870s unit will be much closer to wrought iron than steel plate. It is going to want a very soft (low tensile/yield) weld in order to be compatable with what is there.

If you haven't d> hi gang, the shop owner where i work has been asked to repair an old

Reply to
Roy J

Roy gave very good advice. And if you want to know why, here's a link:

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Pete Keillor

Reply to
Peter T. Keillor III

Ouch!

Pretty comm> >

Reply to
Roy J

Do you know the make or model of the tractor? Have any pictures of the tractor and area to be repaired or replaced? You need find all the information you can on the unit so that your repairs are to code and will pass boiler inspection.

Reply to
Lance

Below is a link to picture of 1870 Tractor built by Howard Farmers Engine - 8nhp. Works No. 110 - Reg. No. AP 9197

Reply to
Lance

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