Copper 18150 Square Bar 3/4" square Retail Price

About 18150|Chromium copper (99% copper, 1% chromium). Precipitation-hardenable to moderate strength (60–70 KSI tensile) while retaining about 80% of pure copper’s electrical conductivity. The go-to alloy for resistance welding electrodes and applications requiring the combination of strength, conductivity, and heat resistance. Machines better than pure copper in the hardened condition since the chromium gives chips more body. No beryllium toxicity concerns. Compare to 17510 beryllium copper (much stronger but toxic dust) and C110 (softer, higher conductivity, no heat resistance).

About Square Bar|Solid square stock used for keys, keystock, spacers, and parts with flat reference surfaces. It's easier to clamp in a vise than round bar when you need to mill features on multiple sides.