Graphite Electrode Nipple

graphite-electrode-nipple

GRAPHITE ELECTRODE NIPPLES

– Match With UHP/HP/RP Graphite Electrodes

Graphite electrode nipple is the accessory of the graphite electrode. It is used to connect the electrode bodies for the continuous use of electrodes.

SPECIFICATION

Table 1: Technical Specification of Graphite Electrode Nipple

ItemResistance
(≤, µΩ·m)
Density
(≥, g/cm3)
Flexure Strength
(≥, MPa)
Elastic Modulus
(≤, GPa)
Ash Content
(≤, %)
CTE
(100 °C – 600 °C)
(≤, 10-6/°C)
Regular power6.51.7015.014.00.52.7
High Power5.51.7517.016.00.32.2
Ultra High Power4.51.7820.022.00.21.4
dimensions-nipple-socket

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

Electrode DIa.Nipple
Designation
NippleSocket
Major Dia.
(mm)
Length
(mm)
Pitch Dia.
(mm)
Depth
(mm)
Thread Length
(mm)
(inch)(mm)d1l1d4l2l3
9225139T3N139.7203.20135.49107.60103.60
10250155T3N155.57220.00151.36116.00112.00
12300177T3N177.16270.90172.95141.50137.50
14/16350/400215T3N215.90304.80216.69158.40154.40
14/16350/450215T3L215.90355.60216.69183.80179.80
16/18400/450241T3N241.30338.70237.09175.30171.30
16/18400/450241T3L241.30355.60237.09183.80179.80
20500273T3N273.05355.60268.84183.80179.80
20500273T3L273.05457.20268.84234.60230.60
22550298T3L298.45457.20294.24234.60230.60

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

Electrode DIa.Nipple
Designation
NippleSocket
Major Dia.
(mm)
Length
(mm)
Pitch Dia.
(mm)
Depth
(mm)
Thread Length
(mm)
(inch)(mm)d1l1d4l2l3
9225139T4N139.7177.80136.5494.9090.90
10250152T4N152.40180.50149.24101.3097.30
12300177T4N177.80215.90174.64114.00110.00
14350203T4N203.20254.00200.04133.00129.00
14350203T4L203.20304.80200.04158.40154.40
16400222T4N222.25304.80219.09158.40154.40
16400222T4L222.25355.60219.09183.80179.80
18450241T4N241.30304.80238.14183.80230.60
18450241T4L241.30355.60238.14234.60179.80
20500269T4N269.88355.60266.72183.80179.80
20500269T4L269.88457.20266.72234.60230.60
22550298T4N298.45355.60295.29183.80179.80
22550298T4L298.45457.20295.29234.60230.60
24600317T4N317.50355.60314.34183.80179.80
24600317T4L317.50457.20314.34234.60230.60

* 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.