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China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui Featured Image
  • China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui
  • China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui
  • China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui
  • China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui
  • China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui
  • China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui
  • China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui
  • China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui
  • China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui

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Our firm aims to operating faithfully, serving to all of our shoppers , and working in new technology and new machine regularly for EAF RP HP Welding Price UHP Graphite Electrode , Carbon Block (Anode Scrap) For Foundry Coke Replacement , Graphite electrode rp 200 350mm 500mm for steel smelting furnace , We wholeheartedly welcome customers all over the world come to visit our factory and have a win-win cooperation with us!
China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui Detail:

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

SPECIFICATION

Table 1 Technical Specification of Graphite Electrode Nipple

 

Item Resistance Density Flexure Strength Elastic Modulus Ash Content CTE
(≤, µΩ·m) (≥, g/cm3) (≥, MPa) (≤, GPa) (≤, %) (100 °C – 600 °C)
(≤, 10-6/°C)
Regular power 6.5 1.69 15 14 0.5 2.8
High Power 5.5 1.73 16 16 0.3 2.2
Ultra High Power 4.5 1.75 20 18 0.3 1.4

Dimensions of nipple & socket
Dimensions of nipple & socket


Table 2: Dimensions of Nipple & Sockets (TPI 3)

Electrode Dia. Nipple Designation Nipple Socket
Major Dia. Length Pitch Dia. Depth Thread Length
(mm) (mm) (mm) (mm) (mm)
(inch) (mm) d1 l1 d4 l2 l3
9 225 139T3N 139.7 203.2 135.49 107.6 103.6
10 250 155T3N 155.57 220 151.36 116 112
12 300 177T3N 177.16 270.9 172.95 141.5 137.5
14/16 350/400 215T3N 215.9 304.8 211.69 158.4 154.4
14/16 350/400 215T3L 215.9 355.6 211.69 183.8 179.8
16/18 400/450 241T3N 241.3 338.7 237.09 175.3 171.3
16/18 400/450 241T3L 241.3 355.6 237.09 183.8 179.8
20 500 273T3N 273.05 355.6 268.84 183.8 179.8
20 500 273T3L 273.05 457.2 268.84 234.6 230.6
22 550 298T3L 298.45 457.2 294.24 234.6 230.6

* Pin pitch diameter d2 is equal to socket pitch diameter d4.
* Socket minor diameter d3 is equal to pitch diameter d4 minus 3.16 mm.
* Other combinations of nominal diameter and joint are to be agreed upon between the supplier and user.

Table 3: Dimensions of Nipple & Sockets (TPI 4)

Electrode Dia. Nipple Designation Nipple Socket
Major Dia. Length Pitch Dia. Depth Thread Length
(mm) (mm) (mm) (mm) (mm)
(inch) (mm) d1 l1 d4 l2 l3
9 225 139T4N 139.7 177.8 136.54 94.9 90.9
10 250 152T4N 152.4 190.5 149.24 101.3 97.3
12 300 177T4N 177.8 215.9 174.64 114 110
14 350 203T4N 203.2 254 200.04 133 129
14 350 203T4L 203.2 304.8 200.04 158.4 154.4
16 400 222T4N 222.25 304.8 219.09 158.4 154.4
16 400 222T4L 222.25 355.6 219.09 183.8 179.8
18 450 241T4N 241.3 304.8 238.14 158.4 230.6
18 450 241T4L 241.3 355.6 238.14 183.8 179.8
20 500 269T4N 269.88 355.6 266.72 183.8 179.8
20 500 269T4L 269.88 457.2 266.72 234.6 230.6
22 550 298T4N 298.45 355.6 295.29 183.8 179.8
22 550 298T4L 298.45 457.2 295.29 234.6 230.6
24 600 317T4N 317.5 355.6 314.34 183.8 179.8
24 600 317T4L 317.5 457.2 314.34 234.6 230.6

* Pin pitch diameter d2 is equal to socket pitch diameter d4.
* Socket minor diameter d3 is equal to pitch diameter d4 minus 3.16 mm.
* Other combinations of nominal diameter and joint are to be agreed upon between the supplier and user.

Table 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 14.5 - - 24.3 11 - -
16 × 72 400 × 1800 45.2 20.5 46.3 21 35.3 16 39.7 18
16 × 96 400 × 2400 45.2 20.5 46.3 21 35.3 16 39.7 18
18 × 72 450 × 1800 62.8 28.5 75 34 41.9 19 48.5 22
18 × 96 450 × 2400 62.8 28.5 75 34 41.9 19 48.5 22
20 × 72 500 × 1800 79.4 36 93.7 42.5 61.7 28 75 34
20 × 84 500 × 2100 79.4 36 93.7 42.5 61.7 28 75 34
20 × 96 500 × 2400 79.4 36 93.7 42.5 61.7 28 75 34
20 × 110 500 × 2700 79.4 36 93.7 42.5 61.7 28 75 34
22 × 84 550 × 2100 - - - - 73.4 33.3 94.8 43
22 × 96 550 × 2400 - - - - 73.4 33.3 94.8 43
24 × 84 600 × 2100 - - - - 88.2 40 110.2 50
24 × 96 600 × 2400 - - - - 88.2 40 110.2 50
24 × 110 600 × 2700 - - - - 88.2 40 110.2 50

Table 5: Coupling Torque Reference for Nipple & Electrode

Electrode Diameter inch 8 9 10 12 14 16 18 20 22 24
mm 200 225 250 300 350 400 450 500 550 600
Easing Moment N.m 200–260 300–340 400–450 550–650 800–950 900–1100 1100–1400 1500–2000 1900–2500 2400–3000

Below chart is the matching relationship between electric furnace capacity, transformer power load and electrode size.

Furnace Capacity Inner Dia. Transformer Capacity (MVA) Electrode Dia.
t m RP HP UHP mm
10 3.35 5 7.5 10 300/350
15 3.65 6 10 12 350
20 3.95 7.5 12 15 350/400
25 4.3 10 15 18 400
30 4.6 12 18 22 400/450
40 4.9 15 22 27 450
50 5.2 18 25 30 450
60 5.5 20 27 35 500
70 6.8 22 30 40 500
80 6.1 25 35 45 500
100 6.4 27 40 50 500
120 6.7 30 45 60 550/600
150 7 35 50 70 600
170 7.3 - 60 80 600
200 7.6 - 70 100 600/700
250 8.2 - - 120 700
300 8.8 - - 150 700
Product detail pictures:

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui detail pictures

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui detail pictures

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui detail pictures

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui detail pictures

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui detail pictures

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui detail pictures

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui detail pictures

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui detail pictures

China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui detail pictures

Related Product Guide:
With our outstanding administration, powerful technical capability and strict top quality handle procedure, we go on to provide our purchasers with reliable good quality, reasonable selling prices and excellent services. We goal at becoming certainly one of your most responsible partners and earning your gratification for China OEM Graphite Tubes For Bearing - GRAPHITE ELECTRODE NIPPLES – Match With UHP/HP/RP Graphite Electrodes – Aohui , The product will supply to all over the world, such as: Hamburg, Palestine, Bulgaria, As operation principle is "be market-oriented , good faith as principle, win-win as objective", holding on "customer first, quality assurance, service first" as our purpose, dedicated to provide the original quality, create excellence service , we won the praise and trust in the industry of auto parts. In the future, We will provide quality product and excellent service in return to our customers , welcome any suggestions and feedback from all over the world.

Q1: Is your company AO HUI a manufacturer or trader?
A1: Manufacturer, some time we help our clients to purchase relevant products as a trader.
Q2: What’s the MOQ?
A2. No limitation.
Q3: Can we visit your factory?
A3: Of course ,welcome at any time,seeing is believing
Q4: What’s your payment terms?
A4: Negotiation
Q5: Is your company accept customization?
A5: Professional technology teams and engineers all can satisfy you.
Q6: How do you guarantee quality?
A6: For every production processing,we have complete QC system for the chemical composition and Physical properties.After production,all the goods will be tested ,and the quality certificate will be shipped along with goods.
Q7: What’s the proportion of abroad business?
A7: Abroad market around 50%; Domestic market around 50%; and now export proportion is increasing.
Q8: Your company would provide samples?
A8: Yes, we could supply samples for free, and the freight will be undertaken by clients.

    • The company has rich resources, advanced machinery, experienced workers and excellent services, hope you keep improving and perfecting your products and service, wish you better!
    5 Stars By Anne from Botswana - 2018.06.03 10:17
    As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!
    5 Stars By Ellen from Iran - 2018.02.12 14:52
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