China's ferrous metallurgical industry standard
Electrolytic manganese metal YB/T 051-93
1 Theme content and scope of application This standard specifies the technical requirements, test methods, inspection rules and packaging, storage, transportation, marking and quality certification of electrolyzed manganese metal. This standard is applicable to the electrolysis of special steel and non-ferrous alloys used as additive for manganese elements, etc. Metal manganese.
2 Reference standards
2 Reference standards
Determination of particle size composition of GB/T 1480 metal powder dry sieving
GB 3650 General requirements for acceptance, packaging, storage, transportation, marking and quality certification of ferroalloys
GB 40l0 ferroalloy chemical analysis sample taking method
GB 8654.1-8654.11 Methods for chemical analysis of manganese metal
3 varieties and technical requirements
3.1 Brand and Chemical Composition
3.1.1 Electrolytic Manganese is divided into three grades according to the different levels of manganese and impurities. Its chemical composition should comply with the requirements in Table 1.
Table 1
GB 3650 General requirements for acceptance, packaging, storage, transportation, marking and quality certification of ferroalloys
GB 40l0 ferroalloy chemical analysis sample taking method
GB 8654.1-8654.11 Methods for chemical analysis of manganese metal
3 varieties and technical requirements
3.1 Brand and Chemical Composition
3.1.1 Electrolytic Manganese is divided into three grades according to the different levels of manganese and impurities. Its chemical composition should comply with the requirements in Table 1.
Table 1
Grade
chemical composition,%
Mn
C
S
P
Si
Fe
Se
I
II
not less than
no greater than
DJMn99.8
99.8
0.02
0.03
0.005
0.005
0.01
0.03
0.06
DJMn99.7
99.7
0.04
0.05
0.005
0.010
0.01
0.03
0.10
DJMn99.5
99.5
0.08
0.10
0.010
0.015
0.05
0.15
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