REXALLOY®™ GRADE 33
Wear, Corrosion Resistant Parts & Cutting Tools

Grinding:
REXALLOY®™ is generally finished by grinding. Any soft wheel, not coarser than 46 or finer than 60 in Grade "X" or "J", is suitable for machine-grinding REXALLOY®™ . Light feeds should be taken to avoid heat checking. REXALLOY®™ tools should not be quenched during grinding.

Machining:
The lower-hardness type of REXALLOY®™ for non-cutting applications can be machined with tungsten carbide tools. All types of REXALLOY®™ castings are being successfully turned with several grades of carbide tools at a surface speed of 25-40 feet/minute, a feed of .003"/revolution and a cutting depth of .010/.020 inches without coolant. REXALLOY®™ can be drilled or reamed with masonry-type carbide drills using slow speeds fine feeds and a coolant.

Brazing:
REXALLOY®™ is most satisfactorily joined to steel or other REXALLOY®™ parts by brazing. It is never recommended to attempt to weld REXALLOY®™ . Silver solder and a paste flux are recommended for brazing. The essentials of the process consist of grinding and cleaning the face, applying the flux, inserting the brazing strip between the faces binding the parts together with Nichrome wire, heating carefully to 1350ºF to 1450º F and applying pressure as the brazed solidifies on cooling.

(Handy and Harman's Handy Flux and Easy Flo #3 (carbide type) are recommended)