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  • The product name: Graphite Electrodes
  • Product number: 001
  • Time: 2014-10-27
  • Views : 115

 

Graphite Electrodes are made from high quality domestic calcined petroleum coke and high quality imported  needle petroleum coke, are widely used in Electric Arc Furnaces, Mineral-Heated Furnaces to make alloy          steel, other metallic and nonmetallic materials, etc.

Physical Properties:
Item
Regular Power
High Power

Ultra High

Power

Unit 150-200mm 225-350mm 400-500mm

Specific

Resistance (max.)

Electrode μΩ-m 9.0 9.0 9.0 7.0 6.0
Nipple 7.5 7.5 7.5 5.5 5.0
Bending Strength (min.) Electrode MPa 9.8 7.8 6.4 10.5 10.5
Nipple 13.0 13.0 13.0 14.0 16.0
Elastic Modulus (max.) Electrode GPa 9.3 9.3 9.3 12.0 14.0
Nipple 13.7 13.7 13.7 14.0 15.0

Bulk Density

(min.)

Electrode g/cm3 1.52 1.52 1.52 1.60 1.65
Nipple 1.63 1.68 1.68 1.70 1.72
CTE (max.) Electrode x10-6/℃ 2.9 2.9 2.9 2.4 1.5
Nipple 2.7 2.8 2.8 2.2 1.4
Ash  (max.) % 0.3 0.3 0.3 0.3 0.3

 

Specification and Tolerance:

Diameter Length
Nominal diameter Actual diameter Nominal length Tolerance
mm inch Maximum Minimum mm Length (mm) Short length (mm)
150 6 154 149 1600 +/-100 -275
200 8 205 200
225 9 230 225
250 10 256 251 (1600) 1800
300 12 307 302
350 14 357 352
400 16 409 403
(1600) 1800
2000 2200
2400
450 18 460 454
500 20 511 505

Note: Other sizes can be provided upon customer's requirement.

Current Carrying Capacity:

Nominal diameter Regular Power High Power Ultra High Power
mm inch

Current

carrying

capacity (A)

Current

density
(A/cm2)

Current

carrying

capacity(A)

Current

density
(A/cm2)

Current

carrying

capacity(A)

Current

density 

(A/cm2)

150 6 3000-4500 16-25        
200 8 5000-6900 15-21 5500-9000 18-25    
225 9 6000-8000 14-20 6500-10000 18-25    
250 10 7000-10000 14-20 8000-13000 18-25    
300 12 10000-13000 14-18 13000-17400 17-24 15000-22000 20-30
350 14 13500-18000 14-18 17400-24000 17-24 20000-30000 20-30
400 16 18000-23500 14-18 21000-31000 16-24 25000-40000 19-30
450 18 22000-27000 13-17 25000-40000 15-24 32000-45000 19-27
500 20 25000-32000 13-16 30000-48000 15-24 38000-55000 18-27

 

 

 

Dimension of 3TPI Nipple:

3TPI
Diameter
Nipple (mm)
Socket (mm)

Pitch (mm)

inch mm D L d2 1 d1 H 8.47
9 225 139.70 0-0.50 203.20 0-1 90.73 0-5 <10 131.27 +0.500 107.60 +70
10 250 155.57 220.00 103.80 147.14 116.00
12 300 177.16 270.90 116.90 168.73 141.50
14 350 215.90 304.80 150.00 207.47 158.40
16 400 215.90 304.80 150.00 207.47 158.40
16 400 241.30 338.70 169.80 232.87 175.30
18 450 241.30 338.70 169.80 232.87 175.30
18 450 273.05 355.60 198.70 264.62 183.80
20 500 273.05 355.60 198.70 264.62 183.80
20 500 298.45 372.60 221.30 290.02 192.20

 

Dimension of 4TPI Nipple:

4TPI  
Diameter
Nipple (mm)
Socket (mm)

Pitch (mm)

inch mm D L d2 1 d1 H 6.35
8 200 122.24 0-0.50 177.80 0-1 80.00 0-5 <7 115.92 +0.500 94.90 +70
9 225 139.70 177.80 97.46 133.38 94.90
10 250 152.40 190.50 108.00 146.08 101.30
12 300 177.80 215.90 129.20 171.48 114.00
14 350 203.20 254.00 148.20 196.88 133.00
16 400 222.25 304.80 158.80 215.93 158.40
16 400 222.25 355.60 150.00 215.93 183.80
18 450 241.30 304.80 177.90 234.98 158.40
18 450 241.30 355.60 169.42 234.98 183.80
20 500 269.88 355.60 198.00 263.56 183.80
20 500 269.88 457.20 181.08 263.56 234.60

Packing: Electrodes are packed in wooden crates and nipples in wooden cases; or packed pre-set as               customer's requirements, inner plastic to prevent water and dust, and braced strongly with steel strip to be       suitable for land and sea transportation.