2007-01-18 00:15:17 · 8 answers · asked by Chris G 1 in Cars & Transportation ➔ Boats & Boating
cause it corrodes far less than steel and can withstand higher stresses than pure copper.A small amount of tin is added to copper to make bronze which is a lot harder and more wear resitant than copper
2007-01-18 17:26:59 · answer #1 · answered by bryte 3 · 0⤊ 0⤋
Large cruisers and ships have these made of bronze because seaweed and barnacles cannot attach itself - otherwise this would cause an imbalance on the propeller as it rotated and would make the whole boat vibrate and ruin the prop-shaft, bearing and engine. The other main property of bronze is that it doesn't rust.
2007-01-18 01:14:13 · answer #2 · answered by Wheelspinin 2 · 3⤊ 0⤋
All propellers are not made of Bronze. Many are Brass and some smaller ones of Stainless Steel and Aluminium. The main factor is that they must not rust/oxidise.
2007-01-18 00:21:49 · answer #3 · answered by Davy Crockett 3 · 1⤊ 1⤋
They resist electolysis in water and oxidation out of water.
2007-01-19 18:26:08 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I would think it is because it is a non ferrous metal and is not brittle when under stress.
2007-01-18 00:19:06 · answer #5 · answered by Spiny Norman 7 · 0⤊ 0⤋
They won't rust in salt water.
2007-01-18 06:46:53 · answer #6 · answered by Anonymous · 0⤊ 0⤋
cause of oxidation and for strength and electrolysis
2007-01-18 00:20:12 · answer #7 · answered by samshel1 3 · 0⤊ 0⤋
so it doesn't rust!
2007-01-18 09:13:43 · answer #8 · answered by suzi1100steve 2 · 0⤊ 0⤋