Sanjack Non-upset tubing

Sanjack Petro manufactures non-upset tubing in China. We have our own factory of non-upset tubing. Sanjack Petro provides the high quality and competitive price on non-upset tubing for you. Contact us now for non-upset tubing quotation.

  • 25 years non-upset tubing manufacturing experience
  • The strictest quality standards on non-upset tubing
  • Full support on your customised requirement

Description

Non-upset tubing is made of steel tube and it has non-upset ends.

The steel tubes are made of an alloy of iron, carbon, and other elements.

NU stands for a non-upset joint. A difference between NU and EU (external upset) is that NU usually has 10 teeth per inch and EU often contains 8 teeth per inch.

This oil pipe is used in the construction industry, but it also can be found in other manufacturing and industrial applications. Non-upset tubing is used to transport fluids and gasses for commercial and residential buildings.

Structure

The non-upset tubing is processed with threads at both ends.

On one end is installed with a coupling.

The coupled end and the other end are both mounted with protectors to protect the thread.

This oil pipe is manufactured according to API specifications.

non-upset tubing and coupling

types of integral connections

Non-upset tubing connection

Upset Tubing (EUE) is a long tubing with a joint installed in a wellbore to facilitate the extraction of oil and gas. …

Non-upset tubing refers to the pipe end without the extra thick and straight thread and collar. Non-upset (NUE) tubing is used much less than EUE tubing

There may be the same material and grades with upsetting tubing and non-upset tubing.

The maximum difference between them is the tube end, which is the outer diameter.

Non-upset tubing refers to the pipe end without the extra thick and straight thread and collar. Non-upset (NUE) tubing is used much less than EUE tubing.

The cost of NUE is only slightly less than EUE, and the joint strength is substantially less.

The coupling joint diameter of NUE is less than EUE, which offers some advantages when clearance is small. API NUE joints are available in sizes of 1.050 to 4.500 in.

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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