This reciprocating saw blade offering from Irwin has a blade for every application.

The Irwin IRW10504148 Sabre saw blades have the following specifications:
Blade Type: Metal Cutting, 418R, 100mm x 18tpi.

Cuts all metals including non ferrous, pipe conduit, stainless and sheet metal.
This is suitable for use with materials 1.5 to 10mm (1/16 inch to 3/8 inch) thick, dependent on the TPI of the blade.