Manufacturing

To me this says, (PN) #2001 bracket in 8 places. The S. is puzzling, but I wasn't born until 1947.

#2001 may be a reference to a bill of materials.

If a magnet sticks to it and it isn't rusted, just use a MIG welder with mild/carbon steel welding wire.

It'll be fine.

A picture might help.

One contractor did some MIG welding on the pieces. Did ok. Should have pre heated the base first, because one could tell not very good weld penetration on some welds. Next contractor coming in is going to stick weld. I figure the standard 6010 root, with some 7018 cover pass to fill out.

I can make sense of the other abbreviations in the prints. C. RS. should be cold rolled steel, and so forth.

Thanks.

steel plate...?

Its steel plate. Just trying to find out what kind. 1930'S generator from hydro unit

20 questions?

Are we down to 17 now, or up to 23?

AAnd would it matter which? (16/24)

if there are any other similar notes maybe one can the decipher the drafting standard.

Otherwise with the information here, any response is a guess.

Depending on how critical these brackets are to plant safety (hydroelectric), you should hire someone with a good PMI gun (or atomic emission tester), find out the precise alloy involved (and if carbon steel, you need to know precisely the carbon content which most PMI guns will not give you). Another option is to have a sample cut off and sent for complete identification analysis, as this cost is far less than catastrophic failure.

On the other hand, how sure are you this "bracket" is not cast iron, or cast ductile iron? Did the fracture show anything about grain size - typical of cast iron failure. In the 1930's there were a lot of cast steel parts around, as I am told. If your welding protocol does not match up with the alloy type, the built up stresses from welding will result in a quick failure of the part.

Do you have a back smith close. Or someone who can ID steel from the shape and colors, from grinding a small section? Sure fire way to get pretty close to metal type. Good Luck

Fixit