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Chromium Metal

Chromium is mined as chromite (FeCr2O4) ore. About two-fifths of the chromite ores and concentrates in the world are produced in South Africa, while Kazakhstan, India, Russia, and Turkey are also substantial producers. Untapped chromite deposits are plentiful, but geographically concentrated in Kazakhstan and southern Africa.
 
Though native chromium deposits are rare, some native chromium metal has been discovered.
 
In China chromium metal can be divided into the following grades.

 
Chemical Composition %
Cr
Fe
Si
Al
Cu
C
S
P
Pb
Sn
Sb
Bi
As
N
H
O
≥ 
≤ 
JCr99-A
99.0
0.35
0.25
0.30
0.02
0.02
0.02
0.01
0.0005
0.001
0.001
0.001
0.001
0.05
0.01
0.50
JCr99-B
99.0
0.40
0.30
0.30
0.04
0.02
0.02
0.01
0.0005
0.001
0.001
0.001
0.001
0.05
0.01
0.50
JCr98.5-A
98.5
0.45
0.35
0.50
0.04
0.03
0.02
0.01
0.0005
0.001
0.001
0.001
0.001
0.05
0.01
0.50
JCr98.5-B
98.5
0.50
0.40
0.50
0.06
0.03
0.02
0.01
0.0005
0.001
0.001
0.001
0.001
0.05
0.01
0.50
JCr98
98.0
0.80
0.40
0.80
0.06
0.05
0.03
0.01
0.001
0.001
0.001
0.001
0.001
 
 
 

 
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