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Tool Joint are made of AISI 4137 premium alloy steel fully and machined by CNC lathes. All connections are phosphatized, coated with lubricant and provided with thread protectors. All tool joints should be inspected at full length by fluorescence magnetic particle and ultrasonic method.Tool joints are for pipes from 2 3/8" to 6 5/8", grade is E 75, G 105 and S 135; upset style is EU,IEU or IU.
Technical specification and parameter:
|
Tool joint code |
DP nominal weight LB/R |
Steel grade |
O.D.(in) |
I.D.(in) |
Pin tong space(in) |
Box tong space(in) |
Pin/Box bevel diameter(in) |
|
NC31 |
10.4 |
G105 |
4 1/8 |
2 |
7 |
9 |
3 61/64 |
|
|
|
S135 |
4 3/8 |
1 5/8 |
7 |
9 |
3 61/64 |
|
NC38 |
13.3 |
G105 |
5 |
2 7/16 |
8 |
10 1/2 |
4 37/64 |
|
|
|
S135 |
5 |
2 1/8 |
8 |
10 1/2 |
4 37/64 |
|
NC46 |
16.6 |
X95 |
6 1/4 |
3 |
7 |
10 |
5 23/32 |
|
|
|
G105 |
6 1/4 |
3 |
7 |
10 |
5 23/32 |
|
|
|
S135 |
6 1/4 |
2 3/4 |
7 |
10 |
5 23/32 |
|
NC50 |
19.5 |
X95 |
6 5/8 |
3 1/4 |
7 |
10 |
6 1/16 |
|
|
|
G105 |
6 5/8 |
3 1/4 |
7 |
10 |
6 1/16 |
|
|
|
S135 |
6 5/8 |
2 3/4 |
7 |
10 |
6 1/16 |