Graphite Electrode Manufacturing and Quality Control

Weicarbon focuses on graphite electrodes and graphite moldsfor industrial applications. We work with customers to understandtheir technical requirements and provide product options basedon specifications, dimensions and intended use.

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PRODUCTION FACILITIES

Graphite Electrode process of production

Graphite Electrode Technical Specification

Specifications
mm 		Bulk Density
g/m³ 		Specific Resistance
μΩm 		Flexural Strength
Mpa 		C·T·E(100-600°C)
10^-6/°C 		Elastic Modulus
Gpa
Electrode Pin Electrode Pin Electrode Pin Electrode Pin Electrode Pin
RP Φ200-Φ450 1.54~1.62 1.73~1.78 7.0~8.8 4.2~5.5 7.5~95 17~22 2.0~2.5 1.7~2.0 6.5~9.0 10~16
Φ500-Φ800 7.5~9.9 6.5~8.5
HP Φ200-Φ450 1.65~1.73 1.77~1.82 6.0~6.9 3.4~4.5 10.5~15.5 21~26 1.6~1.9 1.3~1.6 9.0~12.0 12~18
Φ500-Φ800 6.0~6.9 9.0~15.0
UHP Φ200-Φ450 1.66~1.75 1.80~1.86 5.2~5.8 3.0~4.0 10.5~15.5 23~32 1.0~1.4 0.9~1.2 9.0~13.0 15~21
Φ500-Φ800 5.2~5.8 9.0~15.0

Recommended Current Carrying Capacity of Graphite Electrode

Nominal
Diameter 		RP HP UHP
A A/m³ A A/m³ A A/m³
200 5000~6900 15~21 5500~9000 18~25
250 7000~10000 14~20 8000~13000 18~25
300 10000~13000 14~18 13000~17400 17~24 15000~22000 20~30
350 13500~18000 14~18 17400~24000 17~24 20000~30000 20~30
400 18000~23500 14~18 21000~31000 16~24 25000~40000 19~30
450 22000~27000 13~17 25000~40000 15~24 32000~45000 19~27
500 25000~32000 13~16 30000~48000 15~24 38000~55000 18~27
550 28000~34000 12~14 34000~53000 14~22 45000~65000 18~27
600 30000~36000 11~13 38000~58000 13~21 52000~75000 18~27
650 32000~39000 10~12 41000~65000 12~20 60000~91000 18~27
700 34000~42000 9~11 45000~72000 12~19 70000~120000 18~30
750 41000~51000 9~11 55000~87000 12~19 82000~124000 18~27
800 47000~57000 9~11 62000~99000 12~19 94000~141000 18~27

Diameter and Length of Graphite Electrode

Nominal Diameter Actual Diameter(mm) Actual Length(mm)
mm inch Max Min Min Crust Diameter Standard Tolerane Short
200 8 205 200 197 1800 ±100 -275
250 10 256 251 248 1800 ±100
300 12 307 302 299 1800 ±100
350 14 358 352 349 1800/2100/2400 ±100
400 16 409 403 400 1800/2100/2400 ±100
450 18 460 454 451 1800/2100/2400 ±100
500 20 511 505 502 1800/2100/2400 ±100
550 22 562 556 553 2100/2400/2700 +200
600 24 613 607 604 2100/2400/2700 +200~-150
650 26 663 659 656 2400/2700/3000 +200~-150 -300
700 28 714 710 707 2400/2700/3000 +200~-150
750 30 765 761 758 2400/2700/3000 +200~-150
800 32 816 812 809 2400/2700/3000 +200~-150

Dimensions Of Pin and Socket

Nominal
Diameter 		Designation
Of Joint 		Dimensions
Of Pin 		Dimensions
Of Socket
mm IEC D
Tolerance
(-0.5~0) 		L
Tolerance
(-0.5~0) 		d2
Tolerance
(-5~0) 		d1
Tolerance
(0~0.5) 		H
Tolerance
(0~7)
250 155T3N 155.57 220.00 103.80 147.14 116.00
300 177T3N 177.16 270.90 116.90 168.73 141.50
350 215T3N 215.90 304.80 150.00 207.47 158.40
400 215T3N 215.90 304.80 150.00 207.47 158.40
400 241T3N 241.30 338.70 169.80 232.87 175.30
450 241T3N 241.30 338.70 169.80 232.87 175.30
450 273T3N 273.05 355.60 198.70 264.62 183.80
500 273T3N 273.05 355.60 198.70 264.62 183.80
500 298T3N 298.45 372.60 221.30 290.02 192.20
550 298T3N 298.45 372.60 221.30 290.02 192.20
200 122T4N 122.24 177.80 80.00 115.92 94.90
250 152T4N 152.40 190.50 108.00 146.08 101.30
300 177T4N 177.80 215.90 129.20 171.48 114.00
350 203T4N 203.20 254.00 148.20 196.88 133.00
400 222T4N 222.25 304.80 158.80 215.93 158.40
400 222T4L 222.25 355.60 150.00 215.93 183.80
450 241T4N 241.30 304.80 177.90 234.98 158.40
450 241T4L 241.30 355.60 169.42 234.98 183.80
500 269T4N 269.88 355.60 198.00 263.56 183.80
500 269T4L 269.88 457.20 181.08 263.56 234.60
550 298T4N 298.45 355.60 226.58 292.13 183.80
550 298T4L 298.45 457.20 209.65 292.13 234.60
600 317T4N 317.50 355.60 245.63 311.18 183.80
600 317T4L 317.50 457.20 228.70 311.18 234.60
650 355T4N 355.60 457.20 266.79 349.28 234.60
650 355T4L 355.60 558.80 249.86 349.28 285.40
700 374T4N 374.65 457.20 285.84 368.33 234.60
700 374T4L 374.65 558.80 268.91 368.33 285.40
750 406T4N 406.40 584.20 296.42 400.08 298.10
750 406T4L 406.40 609.60 292.19 400.08 310.80
800 432T4N 431.80 635.00 313.36 425.48 323.50
800 432T4L 431.80 685.80 304.89 425.48 348.90
Dimensions and Weight of Packing
Nominal Diameter
× Length		 Pcs/Pkg Electrodes Electrodes with pins
mm Inch pcs Overall Dimensions
mm		 Approx. Weight
kg		 Overall Dimensions
mm		 Approx. Weight
kg
200×18008×722000×1065×5009082090×1065×500930
250×180010×7272000×1065×60011102110×1065×6001150
300×180012×7232000×960×4206852135×960×420710
300×180012×7262000×960×72013702135×960×7201420
350×180014×7232000×1100×4708802150×1100×470915
350×210014×8432300×1100×47010352450×1100×4701070
350×240014×9632600×1100×47011852750×1100×4701220
400×180016×7222000×855×5207952175×855×520830
400×180016×7232000×1265×52011802175×1265×5201230
400×210016×8422300×855×5208902475×855×520920
400×210016×8432300×1265×52013002475×1265×5201345
400×240016×9622600×855×52010352775×855×5201065
400×240016×9832600×1265×52015502775×1265×5201595
450×180018×7222000×960×5709902175×960×5701035
450×210018×8422300×960×57011002475×960×5701140
450×240018×9522600×960×57013352780×960×5701380
500×180020×7222000×1065×63012052230×1065×6301260
500×210020×8422300×1065×63013752530×1065×6301440
500×240020×9622600×1065×63016252830×1065×6301680
500×270020×10822900×1065×63018152830×1065×6301870
550×210022×8422320×1165×68016902550×1165×6801775
550×240022×9622620×1165×68019402850×1165×6802025
550×270022×10822920×1165×68021803150×1165×6802265
600×210024×8422320×1265×75020002550×1265×7502098
600×240024×9622620×1265×75023002850×1265×7502398
600×270024×10822920×1265×75027003150×1265×7502798
650×240026×9622620×1365×80028002900×1365×8003000
650×270026×10822920×1365×80031003200×1365×8003280
700×240028×9622620×1470×85532002900×1470×8553290
700×270028×10822920×1470×85536003200×1470×8553690
750×270030×10822920×1565×90040003220×1565×9004210
800×270032×10812920×860×96024003265×860×9602540

THE CAUSE OF ELECTRODE BREAKAGE-PREVENTIVE MEASURE

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