Two updated, hard-surfacing alloy selector charts are now available from Wall Colmonoy Corp., Madison Heights, Mich. The charts cover Colmonoy nickel-base alloys and are contained in two 4-p technical data sheets designated Tech-1J and PTA/HVOF Tech-1. The Tech-1J data sheet has detailed information on the chemical and physical properties of 33 Colmonoy alloys. The PTA/HVOF Tech-1 Alloy Selector Chart contains an additional 10 PTA and 7 HVOF alloys. Supplied forms, methods of application, descriptions and typical uses are also provided.