Ferromanganese (Fe-Mn
or FeMn) is a ferroalloy with a high manganese
content and is used as a de-oxidiser for steel. It is made by heating a
mixture of the oxides MnO2 and Fe2O3 with carbon in a furnace where
they undergo a thermal decomposition reaction.
High
Carbon Ferromanganese
Specifications:
Product
Code
Mn %
C % max
Si % max
I
Si % max
II
P % max
I
P % max
II
S % max
UKNFeMn78C8.0
75.0~82.0
8.0
1.5
2.5
0.2
0.33
0.03
IBOFeMn78C8.0
75.0~82.0
8.0
1.5
2.0
0.2
0.35
0.04
FNFFeMn78C8.0
75.0~82.0
8.0
1.5
2.5
0.2
0.33
0.03
AUNFeMn78C8.0
75.0~82.0
8.0
1.5
2.5
0.2
0.33
0.03
HCGFeMn78C8.0
75.0~82.0
8.0
1.5
2.5
0.2
0.33
0.03
IBOFeMn74C7.5
70.0~77.0
7.5
1.5
2.0
0.2
0.35
0.04
MYGFeMn78
75~80
7.5
0.6
1.2
0.2
0.25
0.03
IBOFeMn68C7.0
65.0~72.0
7.5
1.5
2.0
0.25
0.35
0.04
MYGFeMn73
70~75
7.5
0.6
1.2
0.2
0.25
0.03
IQUFeMn75C7.5
73-75
7.5
1.5
0.3
0.03
UKNFeMn74C7.5
70.0~77.0
7.5
2.0
3.0
0.25
0.38
0.03
TKOFeMn75C8.0
75
≤8
≤1.5
≤0.25
≤0.03
TKOFeMn75C7.5
75
≤7.5
≤1.5
≤0.25
≤0.03
NBHFeMn78C8.0
>78
<8.0
1.0-5.0
0.2-0.4
<0.03
NBHFeMn75C7.5
>75
<7.5
1.0-5.0
0.2-0.4
<0.03
NBHFeMn60C7.0
>60
<7.0
1.0-5.0
0.25-0.5
<0.05
NBHFeMn65C7.0
>65
<7.0
1.0-5.0
0.25-0.5
<0.03
NBHFeMn70C7.0
>70
<7.0
1.0-5.0
0.2-0.4
<0.03
NBHFeMn73C7.0
>73
<7.0
1.0-5.0
0.2-0.4
<0.03
HCGFeMn74C7.5
70.0-77.0
7.5
2.0
3.0
0.25
0.38
0.03
MYGFeMn76
76
7.5
1.0
2.0
0.33
0.5
0.03
IGDFeMn75C7.5
75
7.5
0.8
0.03
0.02
IGDFeMn65C7.5
65
7.5
0.8
0.03
0.02
MYGFeMn78
75.0~82.0
7.5
1.0
2.0
0.3
0.5
0.03
AUNFeMn78C7.5
70.0~77.0
7.5
2.0
3.0
0.25
0.38
0.03
MYGFeMn74
70.0~77.0
7.5
1.0
2.0
0.4
0.5
0.03
FNFFeMn74C7.5
70.0~77.0
7.5
2.0
3.0
0.25
0.38
0.03
AGZFeMn65C7.3
65
7.3
4.5
0.3
0.04
MYGFeMn72
72
7.3
1.0
2.0
0.38
0.5
0.03
AGZFeMn75C7.3
75
7.3
1.5/2.0
0.25
0.03
AGZFeMn73C7.3
73
7.3
2.0
0.35
0.03
FBTHCFeMn
73 min
7.3
0.2
0.25
MYGFeMn64
64
7.0
1.0
2.0
0.4
0.6
0.03
MYGFeMn68
68
7.0
1.0
2.0
0.4
0.6
0.03
MYGFeMn58
55.0~62.0
7.0
1.0
2.5
0.5
0.6
0.03
MYGFeMn52
52
7.0
1.0
2.5
0.5
0.6
0.03
MYGFeMn56
56
7.0
1.0
2.5
0.5
0.6
0.03
MYGFeMn60
60
7.0
1.0
2.5
0.5
0.6
0.03
FNFFeMn68C7.0
65.0~72.0
7.0
2.5
4.5
0.25
0.4
0.03
AUNFeMn78C7.0
65.0~72.0
7.0
2.5
4.5
0.25
0.4
0.03
KXGFeMn79C7.50
80.0-85.0
7.0
0.8
0.8
0.18
0.28
0.02
MYGFeMn64
60.0~67.0
7.0
1.0
2.5
0.5
0.6
0.03
MYGFeMn68
65.0~72.0
7.0
1.0
2.5
0.4
0.6
0.03
HCGFeMn68C7.0
65.0~72.0
7.0
2.5
4.5
0.25
0.4
0.03
MYGFeMn68
65.0~70.0
7.0
0.6
1.2
0.25
0.3
0.03
KXGFeMn75C7.5A
76.0-79.0
7.0
0.8
0.8
0.18
0.28
0.02
KXGFeMn75C7.5B
76.0-79.0
7.0
0.8
0.8
0.18
0.32
0.02
MYGFeMn63
60~65
7.0
0.6
1.2
0.25
0.3
0.03
UKNFeMn68C7.0
65.0~72.0
7.0
2.5
4.5
0.25
0.4
0.03
KXGFeMn70C7.00*
71.0-75.0
6.9
1.0
2.0
0.18
0.37
0.02
KXGFeMn70C7.00
66.0-70.0
6.9
1.0
2.0
0.18
0.39
0.02
NJOHCFeMn
75 min
6 - 8
1.5
0.3
0.04
Medium
Carbon Ferromanganese
Product code
Manganese (%)
Carbon (%)
Silicon
(max %)
I
Silicon
(max %)
II
Phosphorous
(max %)
I
Phosphorous
(max %)
II
Sulphur (%)
BJNMCFeMn
78 min
1.5 max
1.5 max
0.25
0.05
NJOFeMn78
78
1.5
1.5
0.35
0.03
AUNFeMn82C1.5
78.0～85.0
1.5
1.5
2.5
0.2
0.35
0.03
AUNFeMn82C1.0
78.0～85.0
1
1.5
2.5
0.2
0.35
0.03
UKNFeMn82C1.5
78.0～85.0
1.5
1.5
2.5
0.2
0.35
0.03
UKNFeMn82C1.0
78.0～85.0
1
1.5
2.5
0.2
0.35
0.03
IBNFeMn82C1.5
78.0～85.0
1.5
1
2
0.2
0.35
0.03
IBNFeMn82C1.0
78.0～85.0
1
1
2
0.2
0.35
0.03
IQUFeMn82C1.0
78.0～85.0
1
1.5
2.5
0.2
0.35
0.03
IQUFeMn82C1.5
78.0～85.0
1.5
1.5
2.5
0.2
0.35
0.03
FNFFeMn82C1.0
78.0～85.0
1
1.5
2.5
0.2
0.35
0.03
FNFFeMn82C1.5
78.0～85.0
1.5
1.5
2.5
0.2
0.35
0.03
AUNFeMn78C2.0
75.0～82.0
2
1.5
2.5
0.2
0.4
0.03
UKNFeMn78C2.0
75.0～82.0
2
1.5
2.5
0.2
0.4
0.03
IBNFeMn78C2.0
75.0～82.0
2
1
2
0.2
0.35
0.03
IQUFeMn78C2.0
75.0～82.0
2
1.5
2.5
0.2
0.4
0.03
FNFFeMn78C2.0
75.0～82.0
2
1.5
2.5
0.2
0.4
0.03
AGZFeMn80C1.0
80
1
1.5
0.2
0.25
0.03
IGDFeMn80C1.5
80
1.5
1.5
0.2
0.03
TACFeMn80C1.5
80
1.5
1.5
0.35
0.03
KXGFeMnN-A*
80
0.1/0.5
1
2
0.03
0.1
0.02
NBHFeMn78C1.5
78
1.5
0.8-2.0
0.15-0.35
0.03
NBHFeMn78C2.0
78
2
0.8-2.0
0.15-0.35
0.03
TACFeMn78C2.0
78
2
1.5
0.35
0.03
TACFeMn78C1.5
78
1.5
1.5
0.35
0.03
NBHFeMn78C1.0
78
1
0.8-2.0
0.15-0.35
0.03
IQUFeMn75C2.0
75
2
2
0.3
0.03
TACFeMn75C1.5
75
1.5
1.5
0.35
0.03
TACFeMn75C2.0
75
2
1.5
0.35
0.03
NBHFeMn75C1.5
75
1.5
0.8-2.0
0.15-0.35
0.03
AGZFeMn75C2.0
75
2
2
0.25
0.03
IGDFeMn75C2.0
75
2
2
0.02
0.4
KXGFeMnN-B**
75
1/1.5
1
2
0.1
0.3
0.02
NBHFeMn75C2.0
75
2
0.8-2.0
0.15-0.35
0.03
KXGFeMnN-C**
73
1/1.5
1
2
0.1
0.3
0.02
NJMFeMn75
75
2
1.5
0.3
0.03
*Also
has Nitrogen content of 5% or 7%
** Also has Nitrogen content of 4% or 5%.
Low
Carbon Ferromanganese
Product
Code
Mn
%
C % max
Si % max
I
Si % max
II
P % max
I
P % max
II
S % max
HCGFeMn88C0.2
85.0-92.0
0.2
1
2
0.1
0.3
0.02
HCGFeMn84C0.4
80.0-87.0
0.4
1
2
0.15
0.3
0.02
HCGFeMn84C0.7
80.0-87.0
0.7
1
2
0.2
0.3
0.02
KXGFeMn85C0.20
85.0-90.0
0.18
0.9
1.9
0.05
0.2
0.02
KXGFeMn80C0.40
81.0-85.0
0.38
0.9
1.9
0.1
0.2
0.02
KXGFeMn85C0.70
81.0-85.0
0.65
0.9
1.9
0.1
0.2
0.02
UKNFeMn88C0.2
85.0-92.0
0.2
1
2
0.1
0.3
0.02
UKNFeMn84C0.4
80.0-87.0
0.4
1
2
0.15
0.3
0.02
UKNFeMn84C0.7
80.0-87.0
0.7
1
2
0.2
0.3
0.02
AUNFeMn88C0.2
85.0～92.0
0.2
1
2
0.1
0.3
0.02
AUNFeMn84C0.4
80.0～87.0
0.4
1
2
0.15
0.3
0.02
AUNFeMn84C0.7
80.0～87.0
0.7
1
2
0.2
0.3
0.02
AGXFeMn80C0.5
80
0.5
1.5
0.25
0.03
AGXFeMn80C0.7
80
0.7
1.5
0.25
0.03
NBHFeMn85C0.2
85
0.2
0.8-2.0
0.1-0.3
0.02
NBHFeMn80C0.5
80
0.5
0.8-2.0
0.1-0.3
0.02
NBHFeMn80C0.7
80
0.7
0.8-2.0
0.1-0.3
0.02
IGDFeMn85C0.4
85
0.4
1
0.1
0.02
IGDFeMn80C0.7
80
0.7
1
0.15
0.02
BJNLCFeMn
80
0.5
1
0.25
0.05
NJMLCFeMn
80
0.5
1.5
0.2
0.03
Ferromanganese
Grades
The
North American
standard specification ASTM A99 covers ten grades of ferroalloys under
the sub-specifications: Standard
ferromanganese (grades A, B and C);
Medium-carbon
ferromanganese (grades A,B,C,D and nitrided); and
Low-carbon ferromanganese (grades A and B).
World
Ferromanganese Production
China
is now by far the largest producer of Fe-Mn with production more
than doubling between 2001 and 2005 to around 5.5million tonnes per
annum, an output greater than the combined output of South Africa and
Ukraine, the countries with the next largest production.
Much of China's Fe-Mn production is used in the country's rapidly
expanding iron and steel industry. As with many other ferroalloys,
ferromanganese prices rose rapidly up to the end of the
third quarter
of 2008 but have since fallen sharply as Chinese steel manufacturers
pared back their production.
Email
us for further details of our Ferromanganese.