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API thread gauge

Sharpfine offers American Petroleum Institute - API gauges.

We are able to provide special conical pipe thread gauges for the petroleum

industry, designed, manufactured and inspected according to the structural

dimensions of the parts.

API gauge API thread gauge API gauges conform:

API Spec 7-2

API spec 5B
API gauge
   API GAUGE ---- Regular Style Gauge 6 5/8 REG
        API thread gauge
    API gauge with special BECO thread profiles.
    This kind of API GAUGE is a coarse thread mainly used in drill pipes for blasthole ´╝îmining or rock drilling.


API gauges (Number Style)
gauge CodeForm of Thread InspectedPitchTaperBasic Pitch dia.
NC10 V-0.0554.233(6) 1:8 27.000
NC12 V-0.0554.233(6) 1:8 32.131
NC13 V-0.0554.233(6)1:8 35.331
NC16 V-0.0554.233(6)1:8 40.869
NC23 V-0.038R6.350(4)1:6 59.817
NC26 (2 3/8 IF) V-0.038R (V-0.065)6.350(4)1:6 67.767
NC31 (2 3/8 IF) V-0.038R (V-0.065)6.350(4)1:6 80.848
NC35 V-0.038R6.350(4)1:6 89.687
NC38 (3 1/2 IF) V-0.038R (V-0.065)6.350(4)1:6 96.723
NC40 (4 FH) V-0.038R (V-0.065)6.350(4)1:6 103.429
NC44 V-0.038R6.350(4)1:6 112.192
NC46 (4 IF) V-0.038R (V-0.065)6.350(4)1:6 117.500
NC50 (4 1/2 IF) V-0.038R (V-0.065)6.350(4)1:6 128.059
NC56 V-0.038R6.350(4) 1:4 142.646
NC61 V-0.038R6.350(4) 1:4 156.921
NC70 V-0.038R6.350(4) 1:4 179.146
NC77V-0.038R6.350(4) 1:4 196.621
The angle of form of API gauge: 60°
API gauges (Regular Style)
gauge CodeForm of Thread InspectedPitchTaperBasic Pitch dia.
2 3/8 REG V-0.0405.080(5)1:4 60.080
2 7/8 REG V-0.0405.080(5)1:4 69.605
3 1/2 REG V-0.0405.080(5)1:4 82.293
4 1/2 REG V-0.0405.080(5)1:4 110.868
5 1/2 REG V-0.0506.350(4)1:4 132.944
6 5/8 REG V-0.0506.350(4) 1:6 146.248
7 5/8 REG V-0.0506.350(4)1:4 170.549
8 5/8 REG V-0.0506.350(4)1:4 194.731
The angle of form of API gauge: 60°
API gauges (Full-Hole Style)
gauge CodeForm of Thread InspectedPitchTaperBasic Pitch dia.
3 1/2 FH V-0.0405.080(5)1:4 94.844
4 1/2 FH V-0.0405.080(5)1:4 115.113
5 1/2 FH V-0.050 6.350(4) 1:6 142.011
6 5/8 FH V-0.050 6.350(4) 1:6 165.598
IF
5 1/2 IF V-0.065 6.350(4) 1:6 157.201
The angle of form of API gauge: 60°

  Reference hyperlink:  API gauge.