What is the hardest metal on earth?

Answer 1

Lutetium Metal, is the hardest metal of the rare-earths, used as important additive to some specialty alloy.

Lutetium Metal can be further processed to various shapes of ingots, pieces, wires, foils, slabs, rods, discs and powder.

Tungsten Carbide is the

hardest metal alloy.

Answer 2

Titanium is the hardest natural metal known to man. Alloys are mixture of some of the hardest natural metals, which creates an even stronger man made metal. Some alloys are hard enough to scratch diamonds.

Answer 3

Very probable this is the alloy CPM Rex 121 containing:
- carbon: 3,4 %
- chromium: 4 %
- vanadium: 9,5 %
- wolfram: 10 %
- cobalt: 9 %
- molybdenum: 5 %
- iron: 59,1 %
The HRC is 71.

Answer 4

The so-called metallic diamond alloys developed by Thermophysical Lab is the hardest metal alloy on earth, reaching 2500 HV hardness (over sapphire) which corresponds to more than 6000 MPa strength. The composition includes Fe, Cr, Nb and other 4 to 6 metals.

Answer 5

The hardest metal in the world is an alloy called 1090. Alloy 1090 is a type of carbon steel. Titanium is the second hardest metal in the world.

Answer 6

Tungsten Carbide (aka Tungsten Heavy Alloy)

Answer 7

Chromium. Please see the link.

Answer 8

alloy

Answer 9

Iron