ancient Egyptian copper brass & bronze oar composition tools 2667 to 1085 BC better than iron

Herodotus mentions iron tools being used by the builders of the pyramids. Herodotus’ account is confirmed by pieces of iron tools embedded in old masonry which were discovered by 19th century Egyptologists in various places.

heat, Work Hardened Copper The mechanical properties of a copper oar & or alloy can vary drastically depending on the thermal-mechanical processing of the alloy during production or post production of the material.

80 impacts per minute, 14 hours, 18 inch of granite

120 HB Mild steel
170 HB C99400 casting brass copper iron (Fe) and silicon (Si).
180 HB C94700 Casting Bronze copper Nickel-Tin

ancient Egyptians knew, and used, gold, copper, silver, iron, lead and tin, and the alloys, bronze, brass,

brass was produced by mixing some ore of zinc, possibly calamine, with copper ores in the smelting furnace.

https://en.wikisource.org/wiki/Popular_Science_Monthly/Volume_67/December_1905/Mining_and_Use_of_Metals_by_the_Ancient_Egyptians

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