|
Graphite Electrode (RP)
High Power Graphite Electrode (HP)
Ultra-High Power Graphite Electrode (UHP)
|
Items |
Unit |
Nominal Diameter（mm） |
|
RP |
HP |
UHP |
|
150~900 |
300~400 |
450~600 |
300~400 |
450~600 |
|
Electrical Resistivity ≤ |
Electrode |
μΩm |
8.5 |
6.5 |
7 |
5.9 |
6.2 |
|
Tie-in |
8 |
6 |
6 |
5.5 |
5.5 |
|
Break
Resistance Intensity ≥ |
Electrode |
Mpa |
8 |
12 |
10.5 |
13 |
11 |
|
Tie-in |
15 |
15 |
15 |
17 |
17 |
|
Elastic
Modulus ≤ |
Electrode |
Ｇpa |
9 |
11 |
11 |
12 |
12 |
|
Tie-in |
13 |
14 |
14 |
16 |
16 |
|
Bulk
Density ≥ |
Electrode |
g/cm3 |
1.56 |
1.62 |
1.62 |
1.66 |
1.65 |
|
Tie-in |
1.7 |
1.72 |
1.72 |
1.74 |
1.72 |
|
Thermal
Expansion Coeffcient (100°C~600°C)≤ |
Electrode |
10-6/°C |
2.9 |
2.4 |
2.4 |
1.5 |
1.5 |
|
Tie-in |
2.8 |
2.2 |
2.2 |
1.4 |
1.4 |
|
Ash
Content ≤ |
％ |
0.5 |
0.5 |
0.3 |
0.3 |
0.3 |
|
Notes |
１、Ash
figure is only for reference
２、The
specification and the current burthen of 50mm-700mmElectrode is
according to customer demands。 |
SUGGESTED CURRENT--CARRYING CAPACITY OF ELECTRODES
|
Nominal Diameter |
Suggested Current—Carrying Capacity（A） |
|
MM |
Inch |
UHP |
R P |
H P |
|
150 |
6 |
|
3000~4500 |
|
|
200 |
8 |
|
5000~6900 |
|
|
250 |
10 |
|
7000~10000 |
|
|
300 |
12 |
15000~22000 |
10000~13000 |
13000~17400 |
|
350 |
14 |
20000~30000 |
13000~18000 |
17400~24000 |
|
400 |
16 |
25000~40000 |
18000~23500 |
24000~32000 |
|
450 |
18 |
32000~45000 |
22000~27000 |
32000~40000 |
|
500 |
20 |
38000~55000 |
25000~32000 |
40000~48000 |
SPECIFICATIONS & ALLOWANCE OF GRAPHITE ELECTRODES
|
Diameter
(mm) |
Length
(mm) |
|
Nominal
Diameter |
Actual
Diameter |
Nominal
Length
(mm) |
Allowance
|
|
MM |
Inch |
Max |
Min |
Length |
Short Dimension |
|
１５０
２００ |
６
８ |
１５４
２０４ |
１５１
２０１ |
１６００ |
±100 |
－２７５ |
|
２５０
３００
３５０ |
１０
１２
１４ |
２５６
３０７
３５７ |
２５２
３０３
３５３ |
１６００
１８００ |
±100 |
－２７５ |
|
４００
４５０
５００
６００ |
１６
１８
２０
２４ |
４０８
４５９
５１０
６１３ |
４０４
４５５
５０６
６０７ |
１８００
2 1 0 0 |
±100 |
－２７５ |
Note: In Compliance with international standard（IEC
239/1987）,each
batch delivery is allowed to include electrodes with the length of 15%
short-dimension.
|
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