Specification of API Drill Pipe
|
1 |
2 |
3 |
4 |
5 |
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|
Inch |
Weight |
Calculation Flat end weight |
OD |
Steel Grade |
WT |
Thick end for butt-welding drill pipe joints | |||
|
lb／ft |
kg／m |
in |
mm |
in |
mm |
||||
|
D |
t |
||||||||
|
2⅜ |
6.65 |
6.26 |
9.32 |
2.375 |
60.3 |
E,X,,G,S |
0.280 |
7.11 |
thickened outside |
|
2⅞ |
10.40 |
9.72 |
14.48 |
2.875 |
73.0 |
E,X,,G,S |
0.362 |
9.19 |
Thickened inside or outside |
|
3½ |
9.50 |
8.81 |
13.12 |
3.500 |
88.9 |
E |
0.254 |
6.45 |
Thickened inside or outside |
|
3½ |
13.30 |
12.31 |
18.34 |
3.500 |
88.9 |
E,X,,G,S |
0.368 |
9.35 |
Thickened inside or outside |
|
3½ |
15.50 |
14.63 |
21.79 |
3.500 |
88.9 |
E |
0.449 |
11.40 |
Thickened inside or outside |
|
3½ |
15.50 |
14.63 |
21.79 |
3.500 |
88.9 |
X,,G,S |
0.449 |
11.40 |
Outer thickening or inner and outer thickening |
|
4 |
14.00 |
12.93 |
19.26 |
4.000 |
101.6 |
E,X,,G,S |
0.330 |
8.38 |
Thickened inside or outside |
|
4½ |
13.75 |
12.24 |
18.23 |
4.500 |
114.3 |
E |
0.271 |
6.88 |
Thickened inside or outside |
|
4½ |
16.60 |
14.98 |
22.31 |
4.500 |
114.3 |
E,X,,G,S |
0.337 |
8.56 |
Outer thickening or inner and outer thickening |
|
4½ |
20.00 |
18.69 |
27.84 |
4.500 |
114.3 |
E,X,,G,S |
0.430 |
10.92 |
Outer thickening or inner and outer thickening |
|
5 |
16.25 |
14.87 |
22.15 |
5.000 |
127.0 |
X,,G,S |
0.296 |
7.52 |
thickened inside |
|
5 |
19.50 |
17.93 |
26.71 |
5.000 |
127.0 |
E |
0.362 |
9.19 |
Thickened inside and outside |
|
5 |
19.50 |
17.93 |
26.71 |
5.000 |
127.0 |
X,,G,S |
0.362 |
9.19 |
Outer thickening or inner and outer thickening |
|
5 |
25.60 |
24.03 |
35.79 |
5.000 |
127.0 |
E |
0.500 |
12.70 |
Thickened inside and outside |
|
5 |
25.60 |
24.03 |
35.79 |
5.000 |
127.0 |
X,,G,S |
0.500 |
12.70 |
Outer thickening or inner and outer thickening |
|
5½ |
21.90 |
19.81 |
29.51 |
5.500 |
139.7 |
E,X,,G,S |
0.361 |
9.17 |
Thickened inside and outside |
|
5½ |
24.70 |
22.54 |
33.57 |
5.500 |
139.7 |
E,X,,G,S |
0.415 |
10.54 |
Thickened inside and outside |
|
6⅝ |
25.20 |
22.19 |
33.05 |
6.625 |
168.3 |
E,X,,G,S |
0.330 |
8.38 |
Thickened inside and outside |
|
6⅝ |
27.70 |
24.21 |
36.06 |
6.625 |
168.3 |
E,X,,G,S |
0.362 |
9.19 |
Thickened inside and outside |
