Integral Joint Tubing

Sanjack Petro manufactures Integral Joint Tubing in China. We have our own factory of Integral Joint Tubing. Sanjack Petro provides the high quality and competitive price on Integral Joint Tubing for you. Contact us now for Integral Joint Tubing quotation.

  • Strictly follows the ISO9001, API Spec Q1 quality system,
  • Sanjack owns two pipeline upsetting production lines with a total upsetting capacity of 20,000 tons per year.
  • Sanjack has 8 high-precision and fully automated tubing and coupling thread production lines.

Integral Joint Tubing (IJ)

Description

Integral joint tubing has an external thread at on end and an internal thread at the other end.

This oil pipe can be connected without the use of couplings.

Cylindrical surface, conical surface, spherical surface, and reverse circular cone step surface are arranged successively on the outer end of the external thread and inner end of the internal thread parts.

These metal surfaces form a sealing structure and the first step. On the other side of the external and the internal joints, there is a second step which forms the major anti-torque step.

The second step and the first step form a double-step structure.

Integral Joint Tubing manufacturer

Advantages

1. Integral joint tubing is very practical. With the integral joint structure, the oil pipe connecting procedure is saved.

2. Metal sealing, double anti-torque steps, and high-efficiency connecting threads are effectively combined together.

This method has obviously improved the connection strength, sealing effect, and the anti-torque capability.

3. The integral joint tubing can meet the requirements of both normal oil and gas extraction and special working condition of high torsional well repair acid fracturing operation.

This oil pipe can replace a small drill rod and lower the cost of oil field operation.

Tubing Pipe Dimensions and Weight Chart for API non-upset, external upset, and integral tubing connections

 

 

Labels

 

Outside dia.

 

Nominal linear masses

 

Wall thickness

 

Inside dia.

Mass gain or loss due to end finishing lb
 

Plain end

External upset  

Integral joint

 

1

2 Non-

upset

Ext.upset

T&C

Integral

joint

Non-upset  

Regular

Special clearance
NU T&C EU T&C IJ D (in) lb/ft lb/ft lb/ft t (in) d (in)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1.050 1.14 1.20 1.050 1.14 1.20 0.113 0.824 1.13 0.20 1.40
1.050 1.48 1.54 1.050 1.48 1.54 0.154 0.742 1.48 1.32
1.315 1.70 1.80 1.72 1.315 1.70 1.80 1.72 0.133 1.049 1.68 0.40 1.40 0.20
1.315 2.19 2.24 1.315 2.19 2.24 0.179 0.957 2.17 1.35
1.660 2.09 2.10 1.660 2.10 0.125 1.410 2.05 0.20
1.660 2.30 2.40 2.33 1.660 2.30 2.40 2.33 0.140 1.380 2.27 0.80 1.60 0.20
1.660 3.03 3.07 1.660 3.03 3.07 0.191 1.278 3.00 1.50
1.900 2.40 2.40 1.990 2.40 0.125 1.650 2.37 0.20
1.900 2.75 2.90 2.76 1.990 2.75 2.90 2.76 0.145 1.610 2.72 0.60 2.00 0.20
1.900 3.65 3.73 1.990 3.65 3.73 0.200 1.500 3.63 2.03
1.900 4.42 1.990 4.42 0.250 1.400 4.41
1.900 5.15 1.990 5.15 0.300 1.300 5.13
2.063 3.24 2.063 3.25 0.156 1.751 3.18 0.20
2.063 4.50 2.063 0.225 1.613 4.42
2 3/8 4.00 2.375 4.00 0.167 2.041 3.94 1.60
2 3/8 4.60 4.70 2.375 4.60 4.70 0.190 1.995 4.44 1.60 4.00 2.96
2 3/8 5.80 5.95 2.375 5.80 5.95 0.254 1.867 5.76 1.40 3.60 2.56
2 3/8 6.60 2.375 6.60 0.295 1.785 6.56
2 3/8 7.35 7.45 2.375 7.35 7.45 0.336 1.703 7.32
2 7/8 6.40 6.50 2.875 6.40 6.50 0.217 2.441 6.17 3.20 5.60 3.76
2 7/8 7.80 7.90 2.875 7.80 7.90 0.276 2.323 7.67 0.80 5.80 3.92
2 7/8 8.60 8.70 2.875 8.60 8.70 0.308 2.259 8.45 2.60 5.00 3.16
2 7/8 9.35 9.45 2.875 9.35 9.45 0.340 2.195 9.21
2 7/8 10.50 2.875 10.50 0.392 2.091 10.40
2 7/8 11.50 2.875 11.50 0.440 1.995 11.45
3 1/2 7.70 3.500 7.70 0.216 3.068 7.58 5.40
3 1/2 9.20 9.30 3.500 9.20 9.30 0.254 2.992 8.81 5.00 9.20 5.40
3 1/2 10.20 3.500 10.20 0.289 2.992 9.92 4.80
3 1/2 12.70 12.95 3.500 12.70 12.95 0.375 2.750 12.53 4.00 8.20 4.40
3 1/2 14.30 3.500 14.30 0.430 2.640 14.11
3 1/2 15.50 3.500 15.50 0.476 2.548 15.39
3 1/2 17.00 3.500 17.00 0.530 2.440 16.83
4 9.50 4.000 9.50 0.226 3.548 9.12 6.20
4 10.70 11.00 4.000 11.00 0.262 3.476 10.47 10.60
4 13.20 4.000 13.20 0.330 3.340 12.95
4 16.10 4.000 16.10 0.415 3.170 15.90
4 18.90 4.000 18.90 0.500 3.000 18.71
4 22.20 4.000 22.20 0.610 2.780 22.11
4 1/2 12.60 12.75 4.500 12.60 12.75 0.271 3.958 12.25 6.00 13.20
4 1/2 15.20 4.500 15.20 0.337 3.826 15.00
4 1/2 17.00 4.500 17.00 0.380 3.740 16.77
4 1/2 18.90 4.500 18.90 0.430 3.640 18.71
4 1/2 21.50 4.500 21.50 0.500 3.500 21.38
4 1/2 23.70 4.500 23.70 0.560 3.380 23.59
4 1/2 26.10 4.500 26.10 0.630 3.240 26.06

 

Chemical Composition

 

Chemical Composition, mass fraction (%)
Group Grade Type C Mn Mo Cr Ni Cu P S Si
min. max. min. max. min. max. min. max. max. max. max. max. max
 

 

 

1

H40 0.03 0.03
J55 0.03 0.03
N80 1 0.03 0.03
N80 Q 0.03 0.03
R95 0.45 1.90 0.03 0.03 0.45
 

 

 

2

M65 0.03 0.03
L80 1 0.43 1.90 0.25 0.35 0.03 0.03 0.45
L80 9Cr 0.15 0.30 0.60 0.90 1.10 8.00 10.00 0.50 0.25 0.02 0.01 1
L80 13Cr 0.15 0.22 0.25 1.00 12.00 14.00 0.50 0.25 0.02 0.01 1
C90 1 0.35 1.20 0.25 0.85 1.50 0.99 0.02 0.01
T95 1 0.35 1.20 0.25 0.85 0.40 1.50 0.99 0.02 0.01
C110 0.35 1.20 0.25 1.00 0.40 1.50 0.99 0.02 0.005
3 P110 0.03 0.03
4 Q125 1 0.35 1.35 0.85 1.50 0.99 0.02 0.01
  1. The carbon content for L80 may be increased up to 0,50 % maximum if the product isoil-quenched.
  2. The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the WT is less than 17,78
  3. The carbon content for R95 may be increased up to 0,55 % maximum if the product isoil-quenched.
  4. Themolybdenum content for T95 Type 1 may be decreased to 0,15 % minimum if the WT is less than 17,78
  5. For EW Grade P110, the phosphorus content shall be 0,020 % maximum and the sulfur content 0,010 % maximum. NL = no limit. Elements shown shall be reported in product

 

Mechanical Properties

 

Mechanical Properties
 

Group

 

Grade

 

Type

Total elongation

under load

Yield strength MPa Tensile strength min. Hardeness max.
% min. max. MPa HRC HBW
 

 

 

1

H40 0.5 276 552 414
J55 0.5 379 552 517
K55 0.5 379 552 655
N80 1 0.5 552 758 689
N80 Q 0.5 552 758 689
R95 0.5 655 758 724
 

 

 

2

M65 0.5 448 586 586 22 235
L80 1 0.5 552 655 655 23 241
L80 9Cr 0.5 552 655 655 23 241
L80 13Cr 0.5 552 655 655 23 241
C90 1 0.5 621 724 689 25.4 255
T95 1 0.5 655 758 724 25.4 255
C110 0.7 758 828 793 30 286
3 P110 0.6 758 965 862
4 Q125 1 0.65 862 1034 931
  1. In case of dispute, laboratory Rockwell C hardness testing shall be used as the referee
  2. No hardness limits, but the maximum variation is controlled by manufacturer acc API

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