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  Home >> PETROLEUM MACHINERY>> Drill Pipe >> Oil Drill Pipe    

Oil Drill Pipe 

We can supply all kinds of drill pipes that are consistent with API SPEC 5DP or SY.
Drill pipes can be made as customers’ requirements and be equipped with the same type of tool joints.
 

Advanced drill pipe production lines can transfer the welding parameters to the best position to ensure the quality of welding zone; the heat treatment process with the feature of internal and external cooling at the same time can make a more reliable and stable mechanical character. Application of automatic weight, length measurement and automatic spray records can ensure products’ traceability. Application of thickening and heating lines and 1250 tons of upsetting machine can ensure the thickening size meet the standard of API SPEC 5DR Using of CN furnace for whole pipe body heating and quenching, tempering machine’s advanced heat treatment process can ensure the pipe’s mechanical character. Tube hydraulic straightening machine ensures the straightness and coaxiality of pipe body.

Standard drill pipe specifications



Spec.
OD of drill
pipe body
Wall thk.
of drill pipe
ODof 
weld neck
Tool joint
RSC
chamfer diameter
Approx.
qty.
OD
inter dia. 
of male thread
lenght of male
thread OD
lenght of female
thread OD
Spec. 
Spec.
gra
- de

up
set

RSC
Ddp
mm
t
mm
Dteb
mm
D
mm
dp
mm
Lpb
mm
Lb
mm
Df
mm
Wdp
kg/m
A.2
-12.5%
MAX
±0.8
+0.4
-0.8
±6.4
±6.4
±0.4
Cal.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IU
4
14.00
E
IU
NC40
101.6
8.38
106.4
133.4
71.4
177.80
254.00
127.40
22.42
4
14.00
S
IU
NC40
101.6
8.38
106.4
133.4
68.3
177.80
254.00
127.40
22.76
4
14.00
G
IU
NC40
101.6
8.38
106.4
139.7
61.9
177.80
254.00
127.40
23.61
4
14.00
D
IU
NC40
101.6
8.38
106.4
139.7
50.8
177.80
254.00
127.40
24.03
4-1/2
13.75
E
IU
NC46
114.3
6.88
119.1
152.4
85.7
177.80
254.00
145.26
22.50
2-3/8
6.65
E
EU
NC26
60.32
7.11
65.1
85.7
44.5
177.80
203.20
82.90
10.45
2-3/8
6.65
X,G
EU
NC26
60.32
7.11
65.1
85.7
44.5
177.80
203.20
82.90
10.58
2-7/2
10.40
E
EU
NC31
73.02
9.19
81.0
104.8
54.0
177.80
228.60
100.41
16.25
2-7/8
10.40
X,G
EU
NC31
73.02
9.19
81.0
104.8
50.8
177.80
228.60
100.41
16.25
2-7/8
10.40
S
EU
NC31
73.02
9.19
81.0
111.1
41.3
177.80
228.60
100.41
17.19
3-1/2
9.50
E
EU
NC38
88.90
6.45
98.4
120.7
68.3
203.20
266.70
116.28
15.77
3-1/2
13.30
E
EU
NC38
88.90
9.35
98.4
120.7
68.3
203.20
266.70
116.28
20.77
3-1/2
13.30
X
EU
NC38
88.90
9.35
98.4
120.7
65.1
203.20
266.70
116.28
21.76
3-1/2
13.30
G
EU
NC38
88.90
9.35
98.4
120.7
61.9
203.20
266.70
116.28
21.90
3-1/2
13.30
S
EU
NC38
88.90
9.35
98.4
120.7
54.0
203.20
266.70
116.28
22.22
3-1/2
13.30
E
EU
NC38
88.90
11.40
98.4
120.7
65.1
203.20
266.70
116.28
24.67
3-1/2
13.30
X
EU
NC38
88.90
11.40
98.4
120.7
61.9
203.20
266.70
116.28
25.07
3-1/2
13.30
G
EU
NC38
88.90
11.40
98.4
120.7
54.0
203.20
266.70
116.28
25.38
3-1/2
13.30
S
EU
NC40
88.90
11.40
98.4
139.7
57.2
203.20
266.70
127.40
26.19
EU
4
14.00
E
EU
NC46
101.6
8.38
114.3
152.4
82.6
177.80
254.00
145.26
23.67
4
14.00
X,G
EU
NC46
101.6
8.38
114.3
152.4
82.6
177.80
254.00
145.26
24.12
4
14.00
S
EU
NC46
101.6
8.38
114.3
152.4
76.2
177.80
254.00
145.26
24.46
4-1/2
13.75
E
EU
NC50
114.3
6.88
127.0
168.3
95.3
177.80
254.00
153.99
23.65
4-1/2
16.60
E
EU
NC50
114.3
8.56
127.0
168.3
95.3
177.80
254.00
153.99
27.51
4-1/2
16.60
X,G
EU
NC50
114.3
8.56
127.0
168.3
95.3
177.80
254.00
153.99
28.07
4-1/2
16.60
S
EU
NC50
114.3
8.56
127.0
168.3
88.9
177.80
254.00
153.99
28.47
4-1/2
20.00
E
EU
NC50
114.3
10.92
127.0
168.3
92.1
177.80
254.00
153.99
32.93
4-1/2
20.00
X,G
EU
NC50
114.3
10.92
127.0
168.3
88.9
177.80
254.00
153.99
33.63
4-1/2
20.00
S
EU
NC50
114.3
10.92
127.0
168.3
76.2
177.80
254.00
153.99
34.34
4-1/2
16.60
E
IEU
NC46
114.3
8.56
119.1
168.3
82.6
177.80
254.00
145.26
27.36
4-1/2
16.60
X,G
IEU
NC46
114.3
8.56
119.1
158.8
76.2
177.80
254.00
145.26
27.73
4-1/2
16.60
S
IEU
NC46
114.3
8.56
119.1
158.8
69.9
177.80
254.00
145.26
28.04
4-1/2
20.00
E
IEU
NC46
114.3
10.92
119.1
158.8
76.2
177.80
254.00
145.26
32.94
4-1/2,
20.00
X
IEU
NC46
114.3
10.92
119.1
158.8
69.9
177.80
254.00
145.26
33.69
4-1/2
20.00
G
IEU
NC46
114.3
10.92
119.1
158.8
63.5
177.80
254.00V
145.26
33.97
4-1/2
20.00
S
IEU
NC46
114.3
10.92
119.1
158.8
57.2
177.80
254.00
145.26
34.23
IEU
5
19.50
E
IEU
NC50
127.0
9.19
130.2
168.3
95.3
177.80
254.00
153.99
31.79
5
19.50
X
IEU
NC50
127.0
9.19
130.2
168.3
88.9
177.80
254.00
153.99
32.58
5
19.50
G
IEU
NC50
127.0
9.19
130.2
168.3
82.6
177.80
254.00
153.99
32.95
5
19.50
S
IEU
NC50
127.0
9.19
130.2
168.3
69.9
177.80
254.00
153.99
33.60
5
19.50
E
IEU
5(1/2)
FH
127.0
9.19
130.2
177.8
95.3
203.20
254.00
170.66
33.22
5
19.50
X,G
IEU
5(1/2)
FH
127.0
9.19
130.2
177.8
95.3
203.20
254.00
170.66
33.61
5
19.50
S
IEU
5(1/2)
FH
127.00
9.19
130.2
184.2
88.9
203.20
254.00
170.66
34.89
5
25.60
E
IEU
NC50
127.0
12.70
130.2
168.3
88.9
177.80
254.00
153.99
40.73
5
25.60
X
IEU
NC50
127.0
12.70
130.2
138.6
76.2
177.80
254.00
153.99
41.80
5
25.60
G
IEU
NC50
127.0
12.70
130.2
168.3
69.9
177.80
254.00
153.99
42.11
5
25.60
E
IEU
5(1/2)
FH
127.0
12.70
130.2
177.8
88.9
203.20
254.00
170.66
42.14
5
25.60
X
IEU
5(1/2)
FH
127.0
12.70
130.2
177.8
88.9
203.20
254.00
170.66
42.51
5
25.60
G
IEU
5(1/2)
FH
127.0
12.70
130.2
184.2
88.9
203.20
254.00
170.66
43.35
5
25.60
S
IEU
5(1/2)
FH
127.0
12.70
130.2
84.2
82.6
203.20
254.00
170.66
43.75

Tensile Performance Parameters

Grade
Yield strength
Tensile strength
Min.
Max.
Min.
PSI
Mpa
PSI
Mpa
PSI
Mpa
E-75
75.000
517
105.000
724
100000
689
X-95
95.000
655
125.000
862
105000
724
G-105
105.000
724
135.000
931
115000
793
S-135
135.000
931
165.000
1138
145000
1000

 


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Address: No.31,Gaoxin Road, Xi'an, Shaanxi Province, China Tel./Fax: +86-29-81328442 Email: sumoonlu@gmail.com
website: www.cnmachinetools.com