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Carborundum function parameter　Black carborundum　Green carborundum　A degree constitute　Tiny powder Japan, Western Europe standard

一.The black carborundum whets to anticipate the chemistry composition （GB/T2480-1996）

Card number
A scope
Chemistry composition％
SiC
F.C
Fe2O3
C
12＃-90＃
P12-P100
98.5
＜0.20
＜0.60
100＃-150＃P120-P150
98.0
＜0.30
＜0.80
180#-220#
P180-P220
97.0
＜0.30
＜1.20
C-B

C-P
12＃-90＃
P12-P100
98.0
＜0.25
＜0.70
100＃-150＃
P120-P150
97.5
＜0.35
＜0.90
180＃-220＃
P180-P220
96.0
＜0.35
＜1.35

Magnetism thing content
A degree
Content％
F16-F30
0.0250
F36-F60
0.0210
F70-F120
0.0180
F150-F240
0.0120
C制粒
GC制粒
C微粉
GC微粉
GC硅块
C砂
GC砂
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