Home About us Products Services Messages Contact us  
Products list
GRAPHITE ELECTRODE
 
USER GUIDE
FIRE-RESISTANT MATERIAL
LABOR PRODUCTS
GENERATOR
WELDING MACHINE
WELDING ELECTRODE AND WELDING WIRE
OTHER PRODUCTS
    Products  
Type: Diameter75-600mm
Name: lmpregated
Description: lmpregated Graphite Electrode

  Parameters:

Technical properties of graphite electrode
1. Physical and chemical index
ltem unit Nominal Diameter(mm)
YB/T4088-2000  Typical Values
Industry Standard
75-225 250-350 400-550 75-130 150-225 250-300 300-550
Electric Resistivity Electrode μΩ·m ≤9.0 ≤9.0 ≤9.0 ≤7.5  ≤7.5 ≤8.0 ≤8.5
Nipple ≤7.5 ≤7.5 ≤7.5 ≤6.5  ≤6.5 ≤7.0 ≤7.0
Bending strength Electrode Mpa ≥10.0 ≥9.0 ≥8.0 ≥10.0 ≥10.0 ≥9.0 ≥8.5
Nipple ≥13.0 ≥13.0 ≥13.0 ≥13.0 ≥13.0 ≥13.0 ≥14.0
Elastic modulus Electrode Gpa ≤12.0 ≤12.0 ≤12.0 ≤9.3  ≤9.3 ≤12.0 ≤12.0
Nipple ≤14.0 ≤14.0 ≤14.0 ≤14.0  ≤14.0 ≤14.0 ≤14.0
Bulk density Electrode g/cm3 ≥1.58 ≥1.58 ≥1.58 ≥1.70  ≥1.69 ≥1.65 ≤1.62
Nipple ≥1.68 ≥1.68 ≥1.68 ≥1.72  ≥1.72 ≥1.72 ≤1.72
Ash Electrode % ≤0.3   ≤0.3 ≤0.3 ≤0.3 ≤0.3 ≤0.3 ≤0.3
Nipple
 CTE     (100-600)℃ Electrode 10-6/℃ ≤2.7 ≤2.7 ≤2.7 ≤2.6  ≤2.6 ≤2.7 ≤2.7
Nipple ≤2.5 ≤2.5 ≤2.5 ≤2.4  ≤2.4 ≤2.5 ≤2.5
 
Current Carrying Capacity And Current Density
Nominal lmpregnated electrode
diameter
mm inch Current load A Current density A/cm2
75 3 1300-2000 29-45
100 4 1800-3000 22-37
130 5 2800-4200 21-31
150 6 4000-5000 22-28
175 7 3900-6800 16-28
200 8 4800-9000 15-28
225 9 6400-9700 16-24
250 10 8000-12000 16-24
300 12 11000-16000 15-22
350 14 15000-22000 15-22
400 16 18000-23500 15-22
450 18 20000-28000 15-21
500 20 24000-34000 13-20