Tool Joint
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.
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Tool joint code
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DP nominal weight LB/R
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Steel grade
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O.D.(in)
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I.D.(in)
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Pin tong space(in)
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Box tong space(in)
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Pin/Box bevel diameter(in)
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NC31
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10.4
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G105
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4 1/8
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2
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7
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9
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3 61/64
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S135
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4 3/8
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1 5/8
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7
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9
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3 61/64
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NC38
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13.3
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G105
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5
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2 7/16
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8
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10 1/2
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4 37/64
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S135
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5
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2 1/8
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8
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10 1/2
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4 37/64
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NC46
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16.6
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X95
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6 1/4
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3
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7
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10
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5 23/32
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G105
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6 1/4
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3
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7
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10
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5 23/32
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S135
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6 1/4
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2 3/4
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7
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10
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5 23/32
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NC50
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19.5
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X95
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6 5/8
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3 1/4
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7
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10
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6 1/16
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G105
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6 5/8
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3 1/4
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7
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10
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6 1/16
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S135
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6 5/8
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2 3/4
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7
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10
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6 1/16
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