Molybdenum is included into the group of rare metals. The element was discovered by C. Scheele in 1779 in the form of molybdic acid. Its concentration in the Earth's crust is 0.00011 %. Molybdenum ...
DESCRIPTION
Molybdenum is included into the group of rare metals. The element was discovered by C. Scheele in 1779 in the form of molybdic acid. Its concentration in the Earth’s crust is 0.00011 %. Molybdenum and its alloys are widely used in various fields of engineering and industry, but the major consumer is the ferrous metallurgy — 70 80 % of the produced molybdenum goes to the production of alloyed steels. The balance is used in the form of pure metallic molybdenum and molybdenum alloys, alloys with non-ferrous and rare metals as well as in the form of chemical compounds.
Grade
|
Composition (%), Main Elements, Impurity Element Content (≤), Balance Ferro
|
|||||||
Mo
|
Si
|
S
|
P
|
C
|
Cu
|
Sb
|
Sn
|
|
FeMo 60-a
|
55.0-65.0
|
1.0
|
0.10
|
0.04
|
0.10
|
0.50
|
0.04
|
0.04
|
FeMo 60-b
|
55.0-65.0
|
1.5
|
0.10
|
0.05
|
0.10
|
0.50
|
0.05
|
0.06
|
FeMo 60-c
|
55.0-65.0
|
2.0
|
0.15
|
0.05
|
0.20
|
1.0
|
0.08
|
0.08
|
FeMo 60
|
≥60.0
|
2.0
|
0.10
|
0.05
|
0.15
|
0.50
|
0.04
|
0.04
|
FeMo 55-a
|
≥55.0
|
1.0
|
0.10
|
0.08
|
0.20
|
0.50
|
0.05
|
0.06
|
FeMo 55-b
|
≥55.0
|
1.5
|
0.15
|
0.10
|
0.25
|
1.0
|
0.08
|
0.08
|
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