Steel 1095-Annealed Rectangular Bar 3" x 0.187" Retail Price

About 1095|High-carbon steel (0.95% carbon). The classic spring and blade steel. Maximum hardness (HRC 62-65) among the plain carbon steels but brittle if not tempered properly. This is leaf spring, hand saw blade, and knife blade material. Machine only in the annealed or spheroidized condition. After hardening, it's grinding only. Very poor weldability. Compare to 1084 (slightly lower carbon, more forgiving to heat treat) and W1 tool steel (similar carbon content but with better manufacturing controls).

About Rectangular Bar|Solid rectangular cross-section stock. Functionally similar to flat bar but typically available in thicker, chunkier profiles. The naming varies by supplier — what one calls rectangular bar, another calls flat bar. Used for keys, gibs, wear strips, brackets, and any part where a rectangular starting profile saves setup time versus milling from plate.