Quick Details
- Ash:0.3% max
- Processing Time:7-35 days
- Port:Tianjin
- Supply Ability: 3000 Tons Per Month
- Resistance (μΩ.m):5.5
- Place of Origin:Hebei
- Length:1600-2800mm
- Grade:UHP
- Flexural Strength (N/?):11
- Diameter:250~750
- Brand Name:Ah
- Application:metallurgical industry
- Apparent Density (g/cm³ ):1.72
- Thermal Expansion:1.4
- Type:graphite rod
- Brand Name:AH
Key Specifications/Special Features:
UHP Graphite ElectrodeUHP Graphite Electrode
Diameter: 450mm (18")
Length: 1800mm(72 inch) +/-100mm(68-76 inch)
Grade: UHP
Nipple: 4TPI
Nipple Size: D241.30* L304.80
QC Standard: ISO9001:2008QC Standard: ISO9001:2008
Physico-Chemical Specifications
UHP DIA. 350mm(14 inch)
Item
Unit
Electrode
Nipple
Resistivty
Max.
μΩm
5.5
4.0
Bending Strength
Min.
Mpa
11.0
20.0
Elastic Modulus
Max.
Gpa
14.0
18.0
Bulk Density
Min.
g/cm³
1.68
1.78
CTE
Max.
10-6/℃
(100-600℃)
1.50
1.40
Ash Content
Max.
%
0.30
0.30
Note: Ash content only for reference.
APPLICATION
Graphite electrodes are widely used for production of alloy steels, metal and other nonmetallic materials, etc.
DC electric arc furnace.
AC electric arc furnace.
Submerged arc furnace.
Ladle furnace.
SURFACE QUALITY
There should be less than two defects or holes on the electrode surface, the maximum size of which is mentioned in the below chart.
There should be no transverse crack on the electrode surface. For the longitudinal crack, the length should be less than 5% of the electrode circumference and the width should be 0.3 to
1.0 mm.
The width of black area on electrode surface should be less than 1/10 of the electrode circumference and the length should be less than 1/3 of the electrode.
SpecificationDefect Dimension
Nominal Diameter of Graphite Electrode (mm)
300–400
450–600
Diameter (mm)
20–40
30–50
(<� 20 mm should be negligible)
(<� 30 mm should be negligible)
Depth (mm)
5–10
10–15
(<� 5 mm should be negligible)
(<� 10 mm should be negligible)
