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Medium & Fine-grain Special Graphit
The max grain size of medium &fine-grain special graphite is 2.0mm,1.0mm,0.8mm,0.5mm,etc.,with special production technology,after multiple impregnation and baking, graphitization treatment,it has high strength,good electrical and thermal conductivity and other excellent characteristics.At high temperature state,it has excellent physical and chemical properties,which can be used to produce graphite crucible for high temperature smelting,heating body of vacuum furnace and high frequency electric furnace,graphite vessel for smelting pure metal,mechanical bearing,sealing ring,piston ring and anti-corro- sion equipment of chemical industry.
|
Properties |
Unit |
ZC-DT |
ZB-DT |
ZA-DT |
ZXB-DT |
||||
|
Guarantee |
Typical |
Guarantee |
Typical |
Guarantee |
Typical |
Guarantee |
Typical |
||
|
Max Grain Size |
mm |
2.0 |
2.0 |
1.0 |
1.0 |
0.8 |
0.8 |
0.5 |
0.5 |
|
Buk Density |
g/cm3 |
≥1.71 |
1.73 |
≥1.72 |
1.74 |
≥1.73 |
1.75 |
≥1.73 |
1.75 |
|
Spedific Resistanoe |
μΩm |
≤9.8 |
8.7 |
≤9.5 |
8.4 |
≤9.5 |
8.4 |
≤9.5 |
8.3 |
|
Foral Sltrorgfh |
MPa |
≥13.5 |
16 |
≥14.5 |
17 |
≥15 |
18 |
≥16 |
19 |
|
Compresswe Srenqth |
MPa |
≥28 |
33 |
≥30 |
35 |
≥31 |
37 |
≥32 |
39 |
|
Hardness |
Rockwell |
≥65 |
70 |
≥67 |
72 |
≥69 |
74 |
≥70 |
76 |
|
CTE(100600℃) |
10*C |
≤3.4 |
2.4 |
≤3.4 |
2.4 |
≤3.4 |
2.4 |
≤3.4 |
2.4 |
|
Termal Conductivty |
w/m.k |
≥120 |
138 |
≥125 |
144 |
≥125 |
144 |
≥128 |
149 |
|
Ash Conlent |
% |
≤0.2 |
0.1 |
≤0.2 |
0.1 |
≤0.2 |
0.1 |
≤0.2 |
0.1 |
|
Nominal Diameter(mm) |
Actual Diameter(mm) |
Length(mm) |
|
200 |
204-208 |
1800-2200 |
|
250 |
254-258 |
1800-2200 |
|
300 |
305-309 |
1800-2200 |
|
350 |
355-359 |
1800-2850 |
|
400 |
406-410 |
1800-2850 |
|
450 |
458-462 |
1800-2850 |
|
500 |
508-512 |
1800-3200 |
|
600 |
610-614 |
1800-3200 |
|
650 |
661-665 |
1800-3200 |
|
700 |
712-716 |
1800-3200 |
|
750 |
762-766 |
1800-3200 |
|
800* |
813-817 |
1800-3200 |
|
Width(mm) |
Thickness(mm) |
Length(mm) |
|
370 |
370 |
1800-2450 |
|
420 |
420 |
1800-2450 |
|
530 |
530 |
1800-3200 |
|
630 |
630 |
1800-3200 |
|
478 |
430-640 |
2300/2800/3200/3750/4200 |
|
686 |
380-840 |
2300/2800/3200/3750/4200 |
|
636 |
320-640 |
2300/2800/3200 |
|
745 |
375-745 |
2300/2800/3200/3750/4200 |
|
810* |
810 |
2100-3200 |
|
840* |
490-840 |
2300/2800/3200/3750/4200 |
|
924* |
490-840 |
2300/2800/3200/3750/4200 |
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