Graphite Electrode Nipple

Graphite electrode nipple is an accessory for the graphite electrode and is used in conjunction with graphite electrode. A graphite nipple projecting from one end of a graphite electrode portion of the type used in an electric furnace has a supporting face for receiving a non-graphite portion of a clamping device in shape-locking engagement for holding the electrode for use. It also has a conventional screw-thread surface for joining the nipple to another electrode portion for extending the electrode. Graphite eletrode nipple is used for assembling and supporting electrode portions in an electric furnace, which is essential in the use of graphite electrode. If you want to buy high quality graphite electrode nipple, Contact us for free price list!

Various Graphite Electrode Nipples From Rongsheng Company
Various Graphite Electrode Nipples From Rongsheng

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Graphite Electrode Nipple Features

  • Rugged construction
  • Anti-corrosive
  • Easy to install

Graphite Electrode Nipple Specification

Properties Units of measurement Typical values
Diameter mm 75-150 200-350 400-550 600-700
Bulk density g/cm3 1.68 1.77 1.80 1.82
Ash impurities % 0.2 0.2 0.2 0.2
Specific electrical resistance µОhm•m 5.5 4.5 4.2 4.0
Linear thermal expansion coefficient,  (20-520)ºС 10-6 •1/°С 2.2 1.1 1.2 1.1
Flexural strength MPa 16 17 22 23
Modulus of elasticity (Young’s modulus) GPa 17 17 18

Note: the above values are average values and they do not constitute a specification

Graphite Electrode Nipple Sales In RS Manufacturer
Graphite Electrode Nipple Sales In RS

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Detailer Parameter of 4TPI NIPPLE

DIMENSIONS OF TRUNCATED NIPPLES(4TPI)
Diameter Nipple Electrode socket Pitch
mm inch D L d2 l d1 H
300 12 177.80 -0.5-0 215.90 -1-0 129.20 -5-0 <7 171.48 0-+0.5 114.00 0-+7 6.35
350 14 203.20 -0.5-0 254.00 -1-0 148.20 -5-0 <7 196.88 0-+0.5 133.00 0-+7 6.35
400 16 222.25 -0.5-0 304.80 -1-0 158.80 -5-0 <7 215.93 0-+0.5 158.40 0-+7 6.35
400 16 222.25 -0.5-0 355.60 -1-0 150.00 -5-0 <7 215.93 0-+0.5 183.80 0-+7 6.35
450 18 241.30 -0.5-0 304.80 -1-0 177.90 -5-0 <7 234.98 0-+0.5 158.40 0-+7 6.35
450 18 241.30 -0.5-0 355.60 -1-0 169.42 -5-0 <7 234.98 0-+0.5 183.80 0-+7 6.35
500 20 269.88 -0.5-0 355.60 -1-0 198.00 -5-0 <7 263.56 0-+0.5 183.80 0-+7 6.35
500 20 269.88 -0.5-0 181.08 -1-0 181.08 -5-0 <7 263.56 0-+0.5 234.60 0-+7 6.35
550 22 298.45 -0.5-0 226.58 -1-0 226.58 -5-0 <7 292.13 0-+0.5 183.80 0-+7 6.35
550 22 298.45 -0.5-0 209.65 -1-0 209.65 -5-0 <7 292.13 0-+0.5 234.60 0-+7 6.35
600 24 317.5 -0.5-0 245.63 -1-0 245.63 -5-0 <7 311.18 0-+0.5 183.80 0-+7 6.35
600 24 317.5 -0.5-0 228.70 -1-0 228.70 -5-0 <7 311.18 0-+0.5 234.60 0-+7 6.35
Graphite Electrode With Nipple In RS Company
Graphite Electrode With Nipple In RS Company

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Sizes of graphite nipples and electrode sockets with Т4 taper thread

Nominal Electrode Diameter Joint Designation Nipple Electrode Socket
External Diameter Effective Diameter Length External Diameter Depth Thread depth
d1 d2 L1 d4 L2 L3
200 122Т4N 122.24 119.08 177.80 119.08 94.90 90.90
225 139Т4N 139.70 136.54 177.80 136.54 94.90 90.90
250 152Т4N 152.40 149.24 190.50 149.24 101.30 97.30
300 177Т4N 177.80 174.64 215.90 174.64 114.00 110.00
350 203Т4N 203.20 200.04 254.00 200.04 133.00 129.00
350 203Т4L 203.20 200.04 304.80 200.04 158.40 154.40
400 222Т4N 222.25 219.09 304.80 219.09 158.40 154.40
400 222Т4L 222.25 219.09 355.60 219.09 183.80 179.80
450 241Т4N 241.30 238.14 304.80 238.14 158.40 154.40
450 241Т4L 241.30 238.14 355.60 238.14 183.80 179.80
500 269Т4N 269.88 266.72 355.60 266.72 183.80 179.80
500 269Т4L 269.88 266.72 457.20 266.72 234.60 230.60
550 298Т4N 298.45 295.29 355.60 295.29 183.80 179.80
550 298Т4L 298.45 295.29 457.20 295.29 234.60 230.60
600 317Т4N 317.50 314.34 355.60 314.34 183.80 179.80
600 317Т4L 317.50 314.34 457.20 314.34 234.60 230.60
650 355Т4N 355.60 352.44 457.20 352.44 234.60 230.60
650 355Т4L 355.60 352.44 558.80 352.44 285.40 281.40
700 317Т4L 317.50 314.34 457.20 314.34 234.60 230.60
700 374Т4N 374.65 371.49 457.20 371.49 234.60 230.60
700 374Т4L 374.65 371.49 558.80 371.49 285.40 281.40

Note: Nipple effective diameter d2 is equal to electrode socket effective diameter d4

Other combinations of the nominal diameter and the joint are to be agreed upon with a consumer

Graphite Electrode Nipple
Graphite Electrode Nipple

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Detailer parameter of 3TPI NIPPLE

DIMENSIONS OF TRUNCATED NIPPLES (3TPI)
Diameter Nipple Electrode Socket Pitch
mm inch D L d2 l d1 H
300 12 177.16 -0.5-0 270.9 -1-0 116.9 -5-0 <10 168.73 0-+0.5 141.5 0-+7 8.47
350 14 215.9 -0.5-0 304.8 -1-0 150.0 -5-0 <10 207.47 0-+0.5 158.4 0-+7 8.47
400 16 215.9 -0.5-0 304.8 -1-0 150.0 -5-0 <10 207.47 0-+0.5 158.4 0-+7 8.47
400 16 241.3 -0.5-0 338.7 -1-0 169.8 -5-0 <10 232.87 0-+0.5 175.3 0-+7 8.47
450 18 241.3 -0.5-0 338.7 -1-0 169.8 -5-0 <10 232.87 0-+0.5 175.3 0-+7 8.47
450 18 273.05 -0.5-0 355.6 -1-0 198.7 -5-0 <10 264.62 0-+0.5 183.8 0-+7 8.47
500 20 273.05 -0.5-0 355.6 -1-0 198.7 -5-0 <10 264.62 0-+0.5 183.8 0-+7 8.47
500 20 298.45 -0.5-0 372.6 -1-0 221.3 -5-0 <10 290.02 0-+0.5 192.2 0-+7 8.47
550 22 298.45 -0.5-0 372.6 -1-0 221.3 -5-0 <10 290.02 0-+0.5 192.2 0-+7 8.47
Graphite Electrode And Nipple From RS Factory
Graphite Electrode And Nipple From RS Factory

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Sizes of graphite nipples and electrode sockets with  Т3 taper thread

Nominal Electrode Diameter Joint Designation Nipple Electrode Socket
External Diameter Effective Diameter Length Effective Diameter Depth Thread depth
225 139Т3N 139.70 135.49 203.20 135.49 107.60 103.60
250 155Т3N 155.57 151.36 220.00 151.36 116.00 112.00
300 177Т3N 177.16 172.95 270.90 172.95 141.50 137.50
350/400 215Т3N 215.90 211.69 304.80 211.69 158.40 154.40
350/400 215Т3L 215.90 211.69 355.60 211.69 183.80 179.80
400/450 241Т3N 241.30 237.09 338.70 237.09 175.30 171.30
400/450 241Т3L 241.30 237.09 355.60 237.09 183.80 179.80
500 273Т3N 273.05 268.84 355.60 268.84 183.80 179.80
500 273Т3L 273.05 268.84 457.20 268.84 234.60 230.60
550 298Т3L 298.45 294.24 457.20 294.23 234.60 230.60

Note: Nipple effective diameter d2 is equal to electrode socket effective diameter d3

High Quality Graphite Products In RS Company
High Quality Graphite Products In RS

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Sizes of graphite nipples and electrode sockets with cylindrical thread 3 turns per inch (C3)

Nominal Electrode Diameter Joint Designation Nipple Electrode Socket
Diameter

d

Length

L

External Diameter

d1

Socket depth

L1

75 41С3N 41.2 103.0 35.1 53.0
100 66C3N 66.7 135.0 60.6 69.0
125 69C3N 69.8 153.0 63.7 78.0
150 88C3N 88.9 169.0 82.8 86.0
200 122C3N 122.2 203.0 116.1 103.0

Note: Nipples from 75 mm to 200 mm in diameter  are made without holes for plugs.

Date of conical electrode nipples

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NOTE:The technical index of the connector is shown in the technical index of the supporting electrode.

Graphite Electrode Nipple Production cautions

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It is necessary to clean out the dirt in the socket with compressed air when a new electrode is connected to the nipple.

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When connecting, the electrode should be aligned with the center axis of the nipple.

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The electrode clamp holder should be placed outside of the two security lines where the nipple is to be positioned.

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Before screwing the electrode, the dust on the surface of the electrode should be blown out with compressed air.

Graphite Electrode Nipple Manufacturers

RS Kiln Refractory Company is a top professional manufacturer & supplier of graphite electrodes in China, in the last decade our products were exported to more than 30 foreign countries and areas and got high reputation from our customers all over the world. We constantly invest in our production technologies and in international advanced key equipments in order that the quality of graphite electrodes products produced in RS is up to international advanced level. We have established our own professional technical & after-sales service teams and provide our clients with timely and excellent service. We commit ourselves to assisting the clients to reduce production cost and increase productivity. In short, RS must be a reliable refractory manufacturer, we won’t let you down if you choose to cooperate with us. Just Email us for getting what you want!

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