graphite electrode with Nipple - 017

Specifications
graphite electrodeDiameter: 350mm-600mm (14-24 inch).Length:1800mm-2400mmNipples: 3TPI 4TPIISO9001:2000 STANDARD
Specification of UHP graphite electrode
Items Unit Nominal Diameter(mm)
350-400 450-600
Specific Resistance(not over) ElectrodeNipple μΩ.m 5.54.0 5.84.0
Bending Strength(not below) ElectrodeNipple Mpa 10.516.0 10.516.0
Elastic Modulus(not over) ElectrodeNipple Gpa 14.018.0 14.018.0
Bulk Density(not below) ElectrodeNipple g/cm3 1.671.76 1.671.76
CTE(100-600)0C(not over) ElectrodeNipple 10-6/0C 1.51.2 1.51.2
Ash(not over) ElectrodeNipple % 0.30.2 0.30.2

Suggested Current Carrying Capacities of graphite electrode:
Diameter Suggested Current-Carrying Capacities ( A )
mm Inch A A/cm2
300 12 15000-22000 20-30
350 14 20000-30000 20-30
400 16 25000-40000 19-30
450 18 32000-45000 19-27
500 20 38000-55000 18-27
550 22 45000-65000
600 24 50000-70000

Size of graphite electrode:
Diameter Length
Nominal Actual(mm) Nominal Tolerance
mm inch Low Spot Min Max mm mm
350 14 349 352 357 1800 Max+100Min-100
400 16 400 403 409 1600,1800,2000,2200
450 18 451 454 460
500 20 502 505 511 1800,2000.2200,2400
550 22 553 556 562
600 24 604 607 613 2000,2200,2400