The molecular formula of chromium powder is Cr, which is a slightly dark gray silver-white metal (body-centered cubic crystal system). It is soluble in dilute sulfuric acid and dilute hydrochloric acid, but insoluble in water, nitric acid, and aqua regia. Chromium powder is mainly used in cemented carbide, powder metallurgy products, high temperature alloys, electrical alloys, precision alloys, chemical products, vacuum plating industries, etc.
Chemical composition%
| Cr(%)≥ |
Impurity content (%)≤ |
| Fe |
Si |
Al |
Cu |
C |
S |
O |
N |
P |
Pb |
H |
Sn |
Bi |
Sb |
As |
| 99.5 |
0.30 |
0.20 |
0.25 |
0.015 |
0.01 |
0.01 |
0.15 |
0.015 |
0.01 |
0.0004 |
0.01 |
0.001 |
0.001 |
0.001 |
0.001 |
| 99.95 |
0.04 |
<0.0003 |
<0.001 |
0.0014 |
0.0024 |
0.0044 |
0.42 |
0.0032 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| 99 |
0.3 |
0.25 |
0.25 |
0.015 |
0.02 |
0.02 |
|
|
0.01 |
0.0004 |
0.003 |
|
|
|
|
Physical properties
| Density |
Melting point |
Boiling point |
Resistivity |
| g/cm3 |
℃ |
℃ |
μΩ-cm, 20°C |
| 7.14 |
1857土20 |
2642 |
6.24 |
Product granularity-80 mesh, -100 mesh, -150 mesh, -200 mesh, -250 mesh, -325 mesh, -400 mesh, -500 mesh
