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graphite block

product details

 
s. no.
properties
unit
typical values
guaranteed mean
test method
1
bulk density
g/cc
1.58
≥1.52
yb/t119
2
true density
g/cc
2.20
fixed carbon
%
99.5
≥99
3
ash content
%
0.4
≤1.0
gb/t 1429
4
apparent porosity
%
21
≤25
yb/t 908
5
cold crushing strength
mpa
27
≥20
gb/t 1431
6
thermal conductivity at
40℃
w/mk
124
≥80
      yb/t 5291
7
alkali resistance
l. c.
yb/t 5213
main application: lower hearth bottom

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