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Graphite Electrode Nipple

Graphite Electrode Nipple

Graphite electrodes nipples are used to connect two or more electrodes into column. And the purpose of that is to realize continuous use of electrodes in electric arc furnace steelmaking process. Nipples, with convention...

Product Details

Description

Graphite electrodes nipples are used to connect two or more electrodes into column. And the purpose of that is to realize continuous use of electrodes in electric arc furnace steelmaking process. Nipples, with conventional external threads surface, are the important clamping device to extend the electrode length. Doing this avoids the unproductive consumption in smelting.

As a technical manufacturer, we know that the mismatch between the graphite electrode body and the nipple will lead to the electrode breaking during use. This not only just is an unproductive consumption in smelting, but also increases the amount of carbon in the molten steel. For these reasons, all electrode nipples are produced by our factory, not purchased.

Feature
  • High bulk density, precision thread accuracy.
  • Check the tolerance of nipples one by one.
  • Bending strength limits are measured.
  • High machining accuracy, good surface finishing.
  • Outstanding resistance to breakage.
  • Original factory production, not outsourcing.
Application
  1. Assembly diagram of graphite electrode nipple

    Assembly diagram of graphite electrode nipple

  2. Graphite electrodes with nipples

    Graphite electrodes with nipples

  3. Graphite electrode columns for EAF smelting

    Graphite electrode columns for EAF smelting

Specification

Technical Specification of Graphite Electrode Nipple

Item Resistance
(≤, µΩ·m)
Density
(≥, g/cm3)
Flexure Strength
(≥, MPa)
Elastic Modulus
(≤, GPa)
Ash Content
(≤, %)
CTE
(100 °C – 600 °C)
(≤, 10-6/°C)
Regular power 6.5 1.69 15.0 14.0 0.5 2.8
High Power 5.5 1.73 16.0 16.0 0.3 2.2
Ultra High Power 4.5 1.75 20.0 18.0 0.3 1.4

Standard Electrode Sizes & Nipple Weights

Electrode Standard Weight of Nipples
Nominal Electrode Size TPI 3 TPI 4
Dia. × L T3N T3L T4N T4L
inch mm lbs kg lbs kg lbs kg lbs kg
14 × 72 350 × 1800 32.0 14.5 - - 24.3 11.0 - -
16 × 72 400 × 1800 45.2 20.5 46.3 21.0 35.3 16.0 39.7 18.0
16 × 96 400 × 2400 45.2 20.5 46.3 21.0 35.3 16.0 39.7 18.0
18 × 72 450 × 1800 62.8 28.5 75.0 34.0 41.9 19.0 48.5 22.0
18 × 96 450 × 2400 62.8 28.5 75.0 34.0 41.9 19.0 48.5 22.0
20 × 72 500 × 1800 79.4 36.0 93.7 42.5 61.7 28.0 75.0 34.0
20 × 84 500 × 2100 79.4 36.0 93.7 42.5 61.7 28.0 75.0 34.0
20 × 96 500 × 2400 79.4 36.0 93.7 42.5 61.7 28.0 75.0 34.0
20 × 110 500 × 2700 79.4 36.0 93.7 42.5 61.7 28.0 75.0 34.0
22 × 84 550 × 2100 - - - - 73.4 33.3 94.8 43.0
22 × 96 550 × 2400 - - - - 73.4 33.3 94.8 43.0
24 × 84 600 × 2100 - - - - 88.2 40.0 110.2 50.0
24 × 96 600 × 2400 - - - - 88.2 40.0 110.2 50.0
24 × 110 600 × 2700 - - - - 88.2 40.0 110.2 50.0

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