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Home » Products » API Drill Pipe
Related Searches: API Drill Pipes | China Drilling Pipe for Oil, Gas | Steel Grades Drill Pipes
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API Drill Pipe

API Drill Pipe
Tubes of API drill pipe adopt mechanical upsetting, twice upsetting per heating with high-speed forging, which is easy for refinement treatment. LANTYTO® Machine is specializing in drill pipes according with API (American Petroleum Institute Standard), DS-1, NS-1 standard with E75 to S135 steel grade. The OD range of API drill pipe is from 2 3/8”to 6 5/8”, including DSTJ drill pipe and Special steel grade SS drill pipe, which is suitable for sulfur oil. This drilling pipe is used for oil and natural gas.

Features

1. Tubes of API drill pipe adopt mechanical upsetting, twice upsetting per heating with high-speed forging, which is easy for refinement treatment.
2. Nondestructive testing and ultrasonic testing are mandatory required for tubes and upset end. The minimum wall thickness should be 95% of theoretical calculated thickness, no longer to be 87.5%, and quality tolerance is +10%,0.
3. Tube upset provide defined taper length of minimum internal upset and knuckles R, according to NS-1 standard, which is for a better resisting fatigue life.

Note

1. During the relocation of steel grades drill pipes, the thread protector should be screwed on the threaded parts so as to protect it from damages.
2. Thread sealing grease should be used when connecting the pipe and the joint, and hammer knocking should be prohibited.

Parameters of API Drill Pipe

Spec
Normal
Weight
ft-lbs
Wall
Thickness
TJ
OD
TJ
ID
Pin
Tong


Box
Tong


Grade
Type of upset


mm
mm
mm
mm
mm


2 3/8"
6.65
7.11
3 3/8"(85.7)
1 3/4"(44.5)
7"(177.8)
8"(203.2)
E,X,G
EU
2 7/8"
10.4
9.19
4 1/8"(104.8)
2"(50.8)
7"(177.8)
9"(228.6)
E,X,G,S
IU、EU
3 1/2"
9.5
6.45
4 3/4"(120.7)
2 11/16"(68.3)
8"(203.2)
10.5"(266.7)
E
IU、EU
3 1/2"
13.3
9.35
5"(127)
2 7/16"(61.9)
8"(203.2)
10.5"(266.7)
E,X,G,S
IU、EU
3 1/2"
15.5
11.4
5"(127)
2 9/16"(65.1)
8"(203.2)
10.5"(266.7)
E
IU、EU
3 1/2"
15.5
11.4
5 1/2"(139.7)
2 1/4"(57.2)
8"(203.2)
10.5"(266.7)
X,G,S
EU、IEU
4"
14.0
8.38
6"(152.4)
3"(76.2)
7"(177.8)
10"(254)
E,X,G,S
IU、EU
4"
15.7
9.65
5 1/4"(133.4)
2 9/16"(65.1)
9"(228.6)
12"(304.8)
E,X,G,S
IU、EU
4 1/2"
13.75
6.88
6 5/8"(168.3)
3 3/4"(95.3)
7"(177.8)
10"(254)
E
IU、EU
4 1/2"
16.6
8.56
6 1/4"(158.8)
3"(76.2)
7"(177.8)
10"(254)
E,X,G,S
EU、IEU
4 1/2"
20.0
10.92
6 1/4"(158.8)
3"(76.2)
7"(177.8)
10"(254)
E,X,G,S
EU、IEU
5"
19.5
9.19
6 5/8"(168.3)
3 1/2"(88.9)
7"(177.8)
10"(254)
X.G.S
IEU
5"
19.5
9.19
6 5/8"(168.3)
3 3/4"(95.3)
7"(177.8)
10"(254)
E
IU、EU
5"
25.6
12.7
6 5/8"(168.3)
3"(76.2)
7"(177.8)
10"(254)
X,G,S
IEU
5"
25.6
12.7
6 5/8"(168.3)
3 1/2"(88.9)
7"(177.8)
10"(254)
E
EU、IEU
5 1/2"
21.9
9.17
7"(177.8)
3 3/4"(95.3)
8"(203.2)
10"(254)
X,G,S
IEU
5 1/2"
24.7
10.54
7"(177.8)
4"(101.6)
8"(203.2)
10"(254)
E,X,G,S
IEU
5 7/8"
23.4
9.17
7"(177.8)
4 3/4"(120.7)
8"(203.2)
13"(330.2)
E,X,G,S
IEU
6 5/8"
25.2
8.38
8"(203.2)
5"(127)
8"(203.2)
11"(279.4)
E,X,G,S
IEU
6 5/8"
27.7
9.19
8 1/2"(215.9)
4 1/4"(107.9)
8"(203.2)
11"(279.4)
E,X,G,S
IEU
Longer than standard Tong space available

Parameters of API Drill Pipe Body

Grade
Spec of Steel Grades Drill Pipes Body
Yield Strength

Tensile Strength

E.L.
Hardness
Charpy Impact Energy




NACE Test
%SMYS


(Psi)
Min.
(Psi)
Max.
(Psi)
Min.
(Psi)
Max.
%
(HRC)
Temper-
ature
Specimen
Size
(ft-lb)
Min.Average
Impact Energy
(ft-lb)
Min.Single
Impact Energy

E-75
5DP
75000
105000
100000
Na
5DP
Na
Room Temperature
10 × 10
40
35
Na
X-95
5DP
95000
125000
105000
Na
5DP
Na
Room Temperature
10 × 10
40
35
Na
G-105
5DP
105000
135000
115000
Na
5DP
Na
Room Temperature
10 × 10
40
35
Na
S-135
5DP
135000
165000
145000
Na
5DP
Na
Room Temperature
10 × 10
40
35
Na

NS-1
135000
165000
145000
Na
5DP
Na
-20
10 × 7.5
59
48
Na
Z-140
DS-1
140000
160000
150000
Na
DS-1
Na
Room Temperature
10 × 10
40
35
Na
V-150
DS-1
150000
165000
160000
Na
DS-1
Na
Room Temperature
10 × 10
40
35
Na
SS-95
IRP
95000
110000
105000
130000
17Min
25Max
Room Temperature
10 × 7.5
59
59
85
SS-105
IRP
105000
120000
115000
140000
17Min
25Max
Room Temperature
10 × 7.5
59
59
85

Parameters of API Drill Pipe Tool Joint

Spec of Steel Grades Drill Pipes tool joint

Yield Strength


Tensile Strength


E.L.

Hardness

Charpy Impact Energy




NACE
NACE Test
%SMYS


(Psi)
Min.

(Psi)
Max.

(Psi)
Min.

(Psi)
Max.

%

(HRC)

Temper-
ature

Specimen
Size

(ft-lb)
Min.

Average
Impact Energy

(ft-lb)
Min.

Single
Impact Energy


5DP

120000

Na

145000

Na

Na

Na

Room Temperature

10 × 10

40

35

Na

NS-1

120000

Na

145000

Na

Na

Na

-20

10 × 10

40

35

Na

DS-1

120000

Na

145000

Na

Na

Na

Room Temperature

10 × 10

40

35

Na

IRP

110000

125000

125000

145000

15Min

30

Room Temperature

10 × 10

66

66

65

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