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API 5CT Couplings for Casing and Tubing

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US$ 500 - 1,000 MOQ: 100 Tons
Key Specifications
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Place of Origin:
China
Type:
Other
Machine Type:
Drilling Tool
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Sinotai Petroleum Equipment Co., Ltd.
Silver Verified Supplier
6Yrs
Payment & Shipping
Payment Methods:
Port of Shipment:
Tianjin Shanghai Guangzhou
Delivery Detail:
Delivery time depends on order quantity.

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Place of Origin China
Type Other
Machine Type Drilling Tool
Certification API
Material Carbon Steel
Processing Type Casting
Use Well Drilling

 

API 5CT Couplings for Casing and Tubing

Detailed introduction to Casing and Tubing Coupling:

 

1. Technical standard:API SPEC 5CT,API SPEC 5B,ISO 11960:2004

 

2. Product grade:H40,J55,N80-1,N80Q,L80,C90,T95,P110

 

3.Specification range:
OD55.88~141.3mm(1.9"~4 1/2") for Tubing Couplings
OD127~365.12mm(4-1/2"to 20") for Casing Couplings
4.Thread types:
Tubing Couplings:  External upset(EU),Non-upset(NU)
Casing Couplings:  STC,LTC,BTC(casing coupling) Special clearance(SCC)

 

Note: We also supply permium thread products by customer's request

5.Surface treatment: Whole phosphating, or inside phosphating and outside coating

6.Packing: By carton, wooden case, wooden pallet, or by requirements of customers

7.Quality Control:

1. 100% quality test before delivery.

2. Test report will show to users.

8.Technical Parameter:

API Non-upset tubing coupling---Dimensions, tolerances and masses
Label 1
Size a
Outside
diameter
Minimum
length
Diameter of
recess
Width of bearing face
Max bearing face diameter special bevel
Mass
kg
 
Outside
Diameter
 D  mm
 
Wb mm
NL mm
Q mm
b mm
Bf mm
 
1
2
3
4
5
6
7
8
 
1.900
2-3/8
2-7/8
3-1/2
4
4-1/2
48.26
60.32
73.02
88.90
101.60
114.30
55.88
73.02
88.90
107.95
120.65
132.08
95.25
107.95
130.18
142.88
146.05
155.58
49.86
61.93
74.63
90.50
103.20
115.90
1.59
4.76
4.76
4.76
4.76
4.76
52.07
66.68
80.98
98.42
111.12
123.19
0.56
1.28
2.34
3.71
4.35
4.89
 
a  The size designation for the coupling is the same size designation for the pipe on which the coupling is used.
b  Tolerance on outside diameter W,±1%
 
 
API External-upset tubing coupling---Dimensions, tolerances and masses
Label1
Size a
Outside diameter
Min length
Diameter of recess
Width of bearing face
Max bearing face diameter Bf
Mass
kg
Outside
diameter
Regular&
Special bevel
Special clearance
Special bevel
Special clearance
D mm
Wb mm
WCc mm
NL mm
Q mm
b mm
mm
mm
Regular
Special
clearance
1
2
3
4
5
6
7
8
9
10
11
1.900
2-3/8
2-7/8
3-1/2
4
4-1/2
48.26
60.32
73.02
88.90
101.60
114.30
63.50
77.80
93.17
114.30
127.00
141.30
-
73.91
87.88
106.17
-
-
98.42
123.82
133.35
146.05
152.40
158.75
54.76
67.46
80.16
96.85
109.55
122.25
3.18
3.97
5.56
6.35
6.35
6.35
58.34
71.83
85.88
104.78
117.48
130.96
-
69.90
83.24
100.71
-
-
0.84
1.55
2.40
4.10
4.82
6.05
-
1.07
1.55
2.38
-
-
a The size designation for the coupling is the same size designation for the pipe on which the coupling is used.
b Tolerance on outside diameter W,±1%
CTolerance on outside diameter Wc,±0.38mm

 

API round thread coupling---Dimensions, tolerances and masses
Label 1
Size a
outside diameter
Min length  mm
Diameter of
recess
Width of bearing face
Mass
kg
OD mm
Wb,c mm
Short NL
Long NL
Qd mm
b mm
Short
Long
1
2
3
4
5
6
7
8
9
4-1/2
5
5-1/2
6-5/8
7
7-5/8
8-5/8
9-5/8
10-3/4
11-3/4
13-3/8
114.30
127.00
139.70
168.28
177.80
193.70
219.08
244.48
273.05
298.45
339.72
127.00
141.30
153.67
187.71
200.03
215.90
244.48
269.88
298.45
323.85
365.12
158.75
165.10
171.45
184.15
184.15
190.50
196.85
196.85
203.20
203.20
203.20
177.80
196.85
203.20
222.25
228.60
234.95
254.00
266.70
-
-
-
116.68
129.38
142.08
170.66
180.18
197.64
223.04
248.44
277.02
302.42
343.69
3.97
4.76
3.18
6.35
4.76
5.56
6.35
6.35
6.35
6.35
5.56
3.62
4.66
5.23
9.12
8.39
12.30
16.23
18.03
20.78
22.64
25.66
4.15
5.75
6.42
11.34
10.83
15.63
21.67
25.45
-
-
-
a  The size designation for the coupling is the same size designation for the pipe on which the coupling is used.
B  Groups1,2 and 3--Tolerance on outside diameter W,±1% but not greater than±0.38mm
C  Group4--Tolerance on outside diameter W,±1% but not greater than+3.18 –1.59mm.
d  Tolerance on diameter of recess Q ,for all groups is+0.79  0mm.
API buttress thread coupling---Dimensions, tolerances and masses
Label 1
Size a
outside diameter
Min length
Diameter of 
recess
Width of bearing face
Mass 
kg
OD
Regular
Special clearance d
D mm
Wb,c mm
WC  mm
NL  mm
Q  mm
B  mm
Regular
Special clearance
1
2
3
4
5
6
7
8
9
4-1/2
5
5-1/2
6-5/8
7
7-5/8
8-5/8
9-5/8
10-3/4
11-3/4
13-3/8
114.30
127.00
139.70
168.28
177.80
193.68
219.08
244.48
273.05
298.45
339.72
127.00
141.30
153.67
187.71
200.03
215.90
244.48
269.88
298.45
323.85
365.12
123.82
136.52
149.22
177.80
187.32
206.38
231.78
257.18
285.75
-
-
225.42
231.78
234.95
244.48
254.00
263.52
269.88
269.88
269.88
269.88
269.88
117.86
130.56
143.26
171.83
181.36
197.23
222.63
248.03
276.61
302.01
343.28
3.18
3.97
3.97
6.35
5.56
7.94
9.52
9.52
9.52
9.52
9.52
4.55
5.85
6.36
11.01
10.54
15.82
20.86
23.16
25.74
28.03
31.77
3.48
4.00
4.47
5.65
6.28
9.29
10.80
12.02
13.39
-
-
a The size designation for the coupling is the same size designation for the pipe on which the coupling is used.
b Groups1,2 and 3 --Tolerance on outside diameter W,±1% but not greater than±0.38mm
c Group4--Tolerance on outside diameter W,±1% but not greater than+3.18 –1.59mm.

 API 5CT Couplings for Casing and TubingAPI 5CT Couplings for Casing and TubingAPI 5CT Couplings for Casing and Tubing

 

 

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API 5CT Couplings for Casing and Tubing

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Sinotai Petroleum Equipment Co., Ltd.
Silver Verified Supplier
6Yrs
Business Type
Trading Company
Year Established
2008
Factory Size
Below 1,000 square meters
Total Employees
11 - 50 People
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