2006-11-13 23:37:37 · 17 answers · asked by madhu g 1 in Science & Mathematics ➔ Chemistry
Steel is the hardest metal.
2006-11-13 23:41:19 · answer #1 · answered by a q 2 · 0⤊ 3⤋
There are types of steel, that can be hardened by process called heat treating, some are case hardened only and some are Thru and Thru hardened.
Eg
1040 Steel is usually cased hardened (also known as surface hardened) only. Max depth .06 inches.
1080 Steel is thru hardened or can be surface hardened.
The reason for this is, once it is treated it is not possible to machine the parts using standard machinery.
The hardness is measured on various scales, eg 59-60 Rockwell C scale.
Higher the number harder the surface.
Heat treating is an art more so then science.
2006-11-14 08:26:02 · answer #2 · answered by minootoo 7 · 0⤊ 2⤋
The hardest elemental metal is chromium. Though there are lot of other man made alloys like Tungsten Carbide etc., which are harder, Chromium is the only hardest natural metal.
2006-11-14 07:55:09 · answer #3 · answered by Anonymous · 1⤊ 2⤋
Diamond is the hardest known metal! But scientists at the USA's Lawrence Livemore National Laboratory have discovered that metallic osmium is stiffer than covalently bonded diamond. This makes metallic osmium as the strongest metal.
2006-11-14 08:31:47 · answer #4 · answered by ENOCH RUFUS 2 · 0⤊ 3⤋
Chromium. As was stated before, it is the hardest ELEMENT. Alloys are mixtures of metals, and therefore not elements. Oh yeah, and diamond is not a metal-it is composed of carbon, which makes it a non-metal.
2006-11-14 08:52:18 · answer #5 · answered by Chad P 3 · 0⤊ 2⤋
u mean elements? Don't you know that alloying makes metal more hard. There is no such thing as hardest metal
2006-11-14 11:23:58 · answer #6 · answered by lovelydove_777 3 · 0⤊ 1⤋
Hardest metal is DIAMOND.
2006-11-14 13:44:02 · answer #7 · answered by Anonymous · 1⤊ 2⤋
Uraniun
2006-11-14 08:17:28 · answer #8 · answered by irenemaria 6 · 0⤊ 2⤋
Heart!
2006-11-14 15:59:35 · answer #9 · answered by Anonymous · 0⤊ 2⤋
Depleted uranium steel alloy.
2006-11-14 07:52:39 · answer #10 · answered by bill a 5 · 1⤊ 2⤋