Babbitt fluxing and melting

I believe there are different types of babbitt, depending on its usage.

ASTM B23 Standard Specification for White Metal Bearing Alloys gives the following melting point values for the various ASTM alloy numbers (in ºF):

# - ºF
1 - 433
2 - 466
3 - 464
4 - 363
5 - 358
7 - 464
8 - 459
10 - 468
11 - 471
12 - 473
15 - 479
16 - 471
19 - 462

You do not have to use Plasma Spray for babbitt spraying because the Plasma temperatures are too high. The best method is to use a Wire spray gun and a 3/16" dia wire which can spray almost 60 lbs of babbitt per hour. There will be no melt during the spray. See that the spray is not too fine, because this will mean that the material is oxidizing. Try the fastes speed. I have sprayed bearings of 36" diameter for Hydro-Electric turbines with this proccess, and never had a problem. The equipment is cheap and the application is also very cheap. The normal melting temperature for babbitt is around 450 F If you have any questions, you can e-mail me at vshwn7@aol.com

Good luck