Casing and Tubing
API Casing Is A Special Seamless Steel Pipe, Which Is Formed By Threading And Coupling At Both Ends.Casing Is Mainly Used In Petroleum Projects, The Implementation Of The Standard Is Api 5ct Standard.The Caliber Of Casing Is Calculated Differently From Ordinary Seamless Pipe. The Length Of The Casing Is Not Fixed Because The End Of The Pipe Needs To Be Threaded And Coupling.As A Result, The Length Of The Casing Is Not Precisely Controlled. The Lengths Are Divided Into R1, R2 And R3, With R2 And R3 Being The Common Lengths.
API Tubing Is A Pipe Used Inside A Casing To Transport Oil And Gas. Because Of Its Specific Use, Its Size Is Usually Under 4 Inches. Since Sometimes It Is Necessary To Transport Oil And Gas Inside The Tubing, To Face Different Environments, The Inside Of The Tubing May Need To Be Treated With Anti-Corrosion Treatments, Such As Corrosion-Resistant Alloy (CRA) Coating.
Balingsteel Can Supply BTC, VAM TOP, EUE, And Other Airtight Button Type Casing and Tubing. Contact us To Get a Free Quote!
OUR PRODUCT
Recommended Products By Balingsteel
-
EUE Tubing -
L80 Tubing -
P110 Tubing
High Quality Casing and Tubing
Balingsteel Has 6 Production Lines, Lines 1-2 Are Responsible for Small Diameter API Tubing, and Lines 3-6 Are Responsible for Oil Casing.
From the Inspection of Raw Materials, Quality Inspection of Mother Tube Before Wire Turning and Joining, Air Tightness Inspection of Tube Ends After Joining, Dimensional Inspection, Chemical Composition and Mechanical Properties Inspection, Material Certificates and Certificates, Etc., Each of Our Production and Inspection Process Is Carried out per the API 5ct Standard, With Strict and Standardized Criteria.
If You Are Looking for a Quality Supplier, We Are Your Best Choice, Please Contact Us!
Premium Connections
Balingsteel Can Offer You a Wide Range of Special Connections, For Example Vam Top, New Vam, Hydril CS, TPCQ (TPCO), HSM-1/HSM-2 (Hengyang Valin Connections), STC (Short Round Thread Casing), LTC (Long Round Thread Casing), BTC (Buttress Thread Casing), XL(Extreme-Line Casing), NUE (Non-upset Tubing), EUE (External Upset Tubing), IJ(Integral Joint Tubing), Premium Connections and Almost Any Premium & Gas Tight Connection, Etc.
Enrich Export Experience
Balingsteel Has 25 Years of Experience in Exporting Casing and Tubing, And We Have Long Term Supply Contracts with International Oil Companies Such as NNPC, AOS, SHELL, ARAMCO, Waha Oil, And so On.
We Supply Oil Casing on a Quarterly Basis in Variable Quantities.
If You Need to Purchase Large Quantities at Regular Intervals, Please Contact Us for the Best Price!
How to Choose Casing or Tubing?
We Can Simply Make a Choice Based on Caliber:
| Type | OD | WT | Length |
API Casing |
114.3 – 762 mm (4-1/2″~30″) Or Customized Size |
5.21 – 20.0 mm PPF:1.14~26.10 Or Customized Size |
R1(4.88 – 7.62 mm), R2(7.62 – 10.36 mm), and R3(10.36 – 14.63 mm) |
API Tubing |
26.7 – 114.3 mm (1.050″~4-1/2″) Or Customized Size |
2.87 – 16.0 mm PPF:9.50~133.00 Or Customized Size |
R1(6.1 – 7.32 mm), R2(8.53 – 9.75 mm) |
Application for Casing and Tubing
Balingsteel Is a High-Quality Casing and Tubing Supplier to Provide the World with the Best Solutions and Applications, If You Have Any Questions Please Feel Free to Contact Us, and We Will Provide You with Free Quality Service.
Wall Support
Each Well Requires Several Layers of Casing Depending on the Depth and Geology of the Well. Casing Is Used to Fix the Well Wall, Prevent the Collapse of the Well Wall During Drilling, And Ensure the Smooth Progress of Drilling. Under Normal Circumstances, The Casing Steel Grades Used in Different Geological Environments Are Not the Same.
Isolation and Protection
In the Process of Oil Exploitation, The Casing Can Be Separated from the Oil Field and the Surface. At the Same Time, The Drill Pipe and Drill Collar First Try Their Protection Function to Search for Oil. When Oil Is Found, The Oil Casing Needs to Be Placed Inside the Oil Pipe to Protect the Oil from Being Extracted Smoothly to Prevent Oil and Gas Leakage And Protect the Production Layer from External Pollution.
Control of Oil and Gas Flow and Pressure Control
When the Pressure in the Field Is Sufficient, Oil and Gas Can Automatically Flow to the Surface Through the Casing. The Casing Helps Control the Influx of Oil and Gas and Provides the Necessary Channels for Oil and Gas Flow. When the Pressure in the Well Is Too Low to Extract Oil, The Above-Ground Gas Lift Equipment Begins to Inject High-Pressure Gas into the Casing. The Gas Enters the Tubing and Mixes with the Oil, And Injecting into the Storage Tank Through the Gas Pipeline.
Get an Instant Quote Now
Difference Between Casing and Tubing
It Is Very Easy to Differentiate Between Casing and Tubing Based on the Time of Use and Function.
Oilfield Casing
Casing Is Used to Protect and Stabilize the Wellbore and Is Installed During the Drilling Process.
It Serves to Isolate and Keep the Wellhead Intact.
Well Tubing
Tubing Is Used to Transport Oil and Gas and Is Installed After the Casing Is Placed, It Connects Storage and Collection Pipelines on the Surface and Mainly Plays a Transportation Role.
Tubing and Casing Chart
- Tubing Dimensions and Weight
- Casing Dimensions and Weight
- Chemical Composition
- Mechanical Property
Dimensions and Masses for Standard Tubing and for Tubing Threaded with API Non-upset, External Upset and Integral Tubing Connections
| Labels a | Outside Diameter |
Nominal Linear Masses b, c | Wall Thickness |
Inside Diameter |
Calculated Mass c | |||||||||
| Plain- end |
em, Mass Gain or Loss Due to End Finishing d kg |
|||||||||||||
| 1 | 2 | D mm |
Non- upset T&C kg/m |
External Upset T&C kg/m |
Integral Jointkg/m |
t mm |
d mm |
wpe kg/m |
Non- upset |
External Upset e | Integral Joint |
|||
| NU T&C |
EU T&C |
IJ | Regular | Special Clearance |
||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| 1.050 | 1.14 1.48 |
1.20 1.54 |
— — |
26.67 26.67 |
1.70 2.20 |
1.79 2.29 |
— — |
2.87 3.91 |
20.93 18.85 |
1.68 2.19 |
0.09 — |
0.64 0.60 |
— — |
— — |
| 1.315 | 1.70 2.19 |
1.80 2.24 |
1.72
— |
33.40 33.40 |
2.53 3.26 |
2.68 3.33 |
2.56
— |
3.38 4.55 |
26.64 24.30 |
2.50 3.24 |
0.18 — |
0.64 0.61 |
0.09 — |
0.09 — |
| 1.660 | 2.09 2.30 3.03 |
—
2.40 |
2.10 2.33— |
42.16 42.16 42.16 |
— 3.42 4.51 |
— 3.57 4.57 |
3.13 3.47 — |
3.18 3.56 4.85 |
35.80 35.04 32.46 |
3.06 3.39 4.46 |
— 0.36 — |
— 0.73 0.68 |
— — — |
0.09 0.09 — |
| 1.900 | 2.40 2.75 3.65 4.42 5.15 |
— 2.90 3.73 — — |
2.40 2.76 — — — |
48.26 48.26 48.26 48.26 48.26 |
— 4.09 5.43 6.58 7.66 |
— 4.32 5.55 — — |
3.57 4.11 — — — |
3.18 3.68 5.08 6.35 7.62 |
41.90 40.90 38.10 35.56 33.02 |
3.54 4.05 5.41 6.56 7.64 |
— 0.27 — — — |
— 0.91 0.92 — — |
— — — — — |
0.09 0.09 — — — |
| 2.063 | 3.24 4.50 |
— — |
3.25 — |
52.40 52.40 |
— — |
— — |
4.84 — |
3.96 5.72 |
44.48 40.96 |
4.73 6.58 |
— — |
— — |
— — |
0.09 — |
| 2 3/8 | 4.00 4.60 5.80 6.60 7.35 |
— 4.70 5.95 — 7.45 |
— — — — — |
60.32 60.32 60.32 60.32 60.32 |
5.95 6.85 8.63 9.82 10.94 |
— 6.99 8.85 — 11.09 |
— — — — — |
4.24 4.83 6.45 7.49 8.53 |
51.84 50.66 47.42 45.34 43.26 |
5.86 6.61 8.57 9.76 10.89 |
0.73 0.73 0.64 — — |
— 1.81 1.63 — — |
— 1.34 1.16 — — |
— — — — — |
| Labels a | Outside Diameter |
Nominal Linear Masses b, c | Wall Thickness |
Inside Diameter |
Calculated Mass c | |||||||||
| Plain- end |
em, Mass Gain or Loss Due to End Finishing d kg |
|||||||||||||
| 1 | 2 | D mm |
Non- upset T&C kg/m |
External Upset T&C kg/m |
Integral Jointkg/m |
t mm |
d mm |
wpe kg/m |
Non- upset |
External Upset e | Integral Joint |
|||
| NU T&C |
EU T&C |
IJ | Regular | Special Clearance |
||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| 2 7/8 | 6.40 7.80 8.60 9.35 10.50 11.50 |
6.50 7.90 8.70 9.45 — — |
— — — — — — |
73.02 73.02 73.02 73.02 7302 73.02 |
9.52 11.61 12.80 13.91 15.67 17.11 |
9.67 11.76 12.95 14.06 — — |
— — — — — — |
5.51 7.01 7.82 8.64 9.96 11.18 |
62.00 59.00 57.78 54.74 53.10 50.66 |
9.17 11.41 12.57 13.72 15.49 17.05 |
1.45 1.27 1.18 — — — |
2.54 2.63 2.27 — — — |
1.71 1.78 1.43 — — — |
— — — — — — |
| 3 1/2 | 7.70 9.20 10.20 12.70 14.30 15.50 17.00 |
— 9.30 — 12.95 — — — |
— — — — — — — |
88.90 88.90 88.90 88.90 88.90 88.90 88.90 |
11.46 13.69 15.18 18.90 21.28 27.07 25.70 |
— 13.84 — 19.27 — — — |
— — — — — — — |
5.49 6.45 7.34 9.52 10.92 12.09 13.46 |
77.92 76.00 74.22 69.86 67.06 64.72 61.98 |
11.29 13.12 14.76 18.64 21.00 22.90 25.04 |
2.45 2.27 2.18 1.81 — — — |
— 4.17 — 3.72 — — — |
— 2.45 — 2.00 — — — |
— — — — — — — |
| 4 | 9.50 10.70 13.20 16.10 18.90 22.20 |
— 11.00 — — — — |
— — — — — — |
101.60 101.60 101.60 101.60 101.60 101.60 |
14.14 — 19.64 23.96 28.13 33.04 |
— 16.37 — — — — |
— — — — — — |
5.74 6.65 8.38 10.54 12.70 15.49 |
90.12 88.30 84.84 80.52 76.20 70.62 |
13.57 15.57 19.27 23.67 27.84 32.89 |
2.81 — — — — — |
— 4.81 — — — — |
— — — — — — |
— — — — — — |
| Labels a | Outside Diameter |
Nominal Linear Masses b, c | Wall Thickness |
Inside Diameter |
Calculated Mass c | |||||||||
| Plain- end |
em, Mass Gain or Loss Due to End Finishing d kg |
|||||||||||||
| 1 | 2 | D mm |
Non- upset T&C kg/m |
External Upset T&C kg/m |
Integral Jointkg/m |
t mm |
d mm |
wpe kg/m |
Non- upset |
External Upset e | Integral Joint |
|||
| NU T&C |
EU T&C |
IJ | Regular | Special Clearance |
||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| 4 1/2 | 12.60 15.20 17.00 18.90 21.50 23.70 26.10 |
12.75 — — — — — — |
— — — — — — — |
114.30 114.30 114.30 114.30 114.30 114.30 114.30 |
18.75 22.62 25.30 28.13 32.00 35.27 38.84 |
18.97 — — — — — — |
— — — — — — — |
6.88 8.56 9.65 10.92 12.70 14.22 16.00 |
100.54 97.18 95.00 92.46 88.90 85.86 82.30 |
18.23 22.32 24.90 27.84 31.82 35.10 38.79 |
2.72 — — — — — — |
5.99 — — — — — — |
— — — — — — — |
— — — — — — — |
| NOTE See also Figures D.4, D.5, and D.7. | ||||||||||||||
| a.Labels are for information and assistance in ordering. b.Nominal linear masses (Columns 6, 7, and 8) are shown for information only. c.The densities of martensitic chromium (L80 Types 9Cr and 13Cr) are different from carbon steels; The masses shown are therefore not accurate for martensitic chromium steels. A mass correction factor of 0.989 shall be used. d.Mass gain or loss due to end finishing; See 8.5. e.The length of the upset may alter the mass gain or loss due to end finishing. |
||||||||||||||
Dimensions and Masses for Standard Casing and for Casing Threaded with API Round Thread and Buttress Thread
| Labels a | Outside Diameter |
Nominal Linear Mass T& C b,c |
Wall Thick- ness |
Inside Diameter |
Drift Diameter |
Calculated Mass c | |||||
| Plain- end |
em, Mass Gain or Loss Due to End Finishing d kg |
||||||||||
| Round Thread | Buttress Thread | ||||||||||
| D mm |
kg/m | t mm |
d mm |
mm | wpe kg/m |
Short | Long | RC | SCC | ||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 4 1/2 4 1/2 4 1/2 4 1/2 4 1/2 |
9.50 10.50 11.60 13.50 15.10 |
114.30 114.30 114.30 114.30 114.30 |
14.38 15.73 17.38 19.87 22.69 |
5.21 5.69 6.35 7.37 8.56 |
103.88 102.92 101.60 99.56 97.18 |
100.70 99.74 98.42 96.38 94.00 |
14.02 15.24 16.91 19.44 22.32 |
3.64 3.33 3.18 — — |
— — 3.61 3.35 3.53 |
— 4.53 4.32 4.07 3.64 |
— 1.12 0.91 0.60 0.24 |
| 5 5 5 5 5 5 5 |
11.50 13.00 15.00 18.00 21.40 23.20 24.10 |
127.00 127.00 127.00 127.00 127.00 127.00 127.00 |
17.19 19.69 22.69 27.19 32.13 34.76 36.15 |
5.59 6.43 7.52 9.19 11.10 12.14 12.70 |
115.82 114.14 111.96 108.62 104.80 102.72 101.60 |
112.64 110.96 108.78 105.44 101.62 99.54 98.42 |
16.74 19.12 22.16 26.70 31.73 34.39 35.80 |
4.32 4.00 3.71 — — — — |
— 4.85 4.51 4.52 3.45 3.15 2.99 |
— 5.38 4.99 4.40 3.76 3.42 3.23 |
— 1.24 0.61 0.22 –0.62 –0.96 –1.14 |
| 5 1/2 5 1/2 5 1/2 5 1/2 5 1/2 5 1/2 5 1/2 5 1/2 5 1/2 5 1/2 5 1/2 5 1/2 |
14.00 15.50 17.00 20.00 23.00 26.80 29.70 32.60 35.30 38.00 40.50 43.10 |
139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 |
20.91 23.48 25.72 30.05 34.05 40.15 44.47 48.74 52.80 56.82 60.64 64.41 |
6.20 6.98 7.72 9.17 10.54 12.70 14.27 15.88 17.45 19.05 20.62 22.22 |
127.30 125.74 124.26 121.36 118.62 114.30 111.16 107.94 104.80 101.60 98.46 95.26 |
124.12 122.56 121.08 118.18 115.44 111.12 107.98 104.76 101.62 98.42 95.28 92.08 |
20.41 22.85 25.13 29.52 33.57 39.78 44.14 48.49 52.61 56.68 60.55 64.38 |
4.60 4.36 4.14 — — — — — — — — — |
— 5.26 5.31 4.50 4.37 — — — — — — — |
— 5.71 5.41 4.84 4.31 — — — — — — — |
— 0.87 0.58 0.45 -0.52 — — — — — — — |
| 6 5/8 6 5/8 6 5/8 6 5/8 |
20.00 24.00 28.00 32.00 |
168.28 168.28 168.28 168.28 |
29.76 35.72 41.67 47.62 |
7.32 8.94 10.59 12.06 |
153.64 150.40 147.10 144.16 |
150.46 147.22 143.92 140.98 |
29.06 35.13 41.18 46.46 |
5.58 4.42 — — |
6.23 5.48 4.73 4.73 |
6.35 5.52 4.71 4.00 |
0.89 0.68 –0.75 –1.46 |
| Labels a | Outside Diameter |
Nominal Linear Mass T& C b,c |
Wall Thick- ness |
Inside Diameter |
Drift Diameter |
Calculated Mass c | |||||
| Plain- end |
em, Mass Gain or Loss Due to End Finishing d kg |
||||||||||
| Round Thread | Buttress Thread | ||||||||||
| D mm |
kg/m | t mm |
d mm |
mm | wpe kg/m |
Short | Long | RC | SCC | ||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 |
17.00 20.00 23.00 23.00 26.00 29.00 32.00 32.00 35.00 38.00 42.70 46.40 50.10 53.60 57.10 |
177.80 177.80 177.80 177.80 177.80 177.80 177.80 177.80 177.80 177.80 177.80 177.80 177.80 177.80 177.80 |
25.60 29.91 34.67 34.67 39.14 43.60 47.92 47.92 52.09 56.10 63.84 69.35 74.85 80.21 85.42 |
5.87 6.91 8.05 8.05 9.19 10.36 11.51 11.51 12.65 13.72 15.88 17.45 19.05 20.62 22.22 |
166.06 163.98 161.70 161.70 159.42 157.08 154.78 154.78 152.50 150.36 146.04 142.90 139.70 136.56 133.36 |
162.88 160.80 158.75 e 158.52 156.24 153.90 152.40 e 151.60 149.32 147.18 142.86 139.72 136.52 133.38 130.18 |
24.89 29.12 33.70 33.70 38.21 42.78 47.20 47.20 51.52 55.52 63.41 69.01 74.58 79.93 85.25 |
7.61 6.74 6.26 6.26 5.79 — — — — — — — — — — |
— — 7.94 7.94 7.37 6.79 6.23 6.23 5.68 5.18 — — — — — |
— — 8.28 8.28 7.65 7.13 6.40 6.40 5.79 5.24 — — — — — |
— — 0.58 0.58 –0.54 –0.69 –1.31 –1.31 –1.91 –2.47 — — — — — |
| 7 5/8 7 5/8 7 5/8 7 5/8 7 5/8 7 5/8 7 5/8 7 5/8 7 5/8 7 5/8 |
24.00 26.40 29.70 33.70 39.00 42.80 45.30 47.10 51.20 55.30 |
193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68 |
35.72 39.29 44.20 50.15 58.04 63.69 67.41 70.09 76.19 82.30 |
7.62 8.33 9.52 10.92 12.70 14.27 15.11 15.88 17.45 19.05 |
178.44 177.02 174.64 171.84 168.28 165.14 163.46 161.92 158.78 155.58 |
175.26 173.84 171.46 168.66 165.10 161.96 160.28 158.74 155.60 152.40 |
34.96 38.08 43.24 49.22 56.68 63.14 66.54 69.63 75.84 82.04 |
7.11 6.78 — — — — — — — — |
— 8.58 7.91 7.13 6.16 5.32 4.87 4.48 — — |
— 9.12 8.38 7.51 6.44 5.50 5.01 4.57 — — |
— 2.59 1.84 0.98 – 0.10 –1.03 –1.52 –1.96 — — |
| 7 3/4 7 3/4 |
46.10 46.10 |
196.85 196.85 |
68.60 68.60 |
15.11 15.11 |
166.63 166.63 |
165.10 e 163.45 |
67.72 67.72 |
— — |
— — |
— — |
— — |
| Labels a | Outside Diameter |
Nominal Linear Mass T& C b,c |
Wall Thick- ness |
Inside Diameter |
Drift Diameter |
Calculated Mass c | |||||
| Plain- end |
em, Mass Gain or Loss Due to End Finishing d kg |
||||||||||
| Round Thread | Buttress Thread | ||||||||||
| D mm |
kg/m | t mm |
d mm |
mm | wpe kg/m |
Short | Long | RC | SCC | ||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 8 5/8 8 5/8 8 5/8 8 5/8 8 5/8 8 5/8 8 5/8 8 5/8 8 5/8 |
24.00 28.00 32.00 32.00 36.00 40.00 40.00 44.00 49.00 |
219.08 219.08 219.08 219.08 219.08 219.08 219.08 219.08 219.08 |
35.72 41.67 47.62 47.62 53.57 59.53 59.53 65.48 72.92 |
6.71 7.72 8.94 8.94 10.16 11.43 11.43 12.70 14.15 |
205.66 203.64 201.20 201.20 198.76 196.22 196.22 193.68 190.78 |
202.48 200.46 200.02 e 198.02 195.58 193.68 e 193.04 190.50 187.60 |
35.14 40.24 46.33 46.33 52.35 58.53 58.53 64.64 71.51 |
10.93 10.07 9.39 9.39 8.72 — — — — |
— — 12.44 12.44 11.60 10.73 10.73 9.88 8.88 |
— — 12.57 12.57 11.68 10.77 10.77 9.87 8.85 |
— — 2.51 2.51 1.62 0.71 0.71 –0.20 –1.21 |
| 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 9 5/8 |
32.30 36.00 40.00 40.00 43.50 43.50 47.00 47.00 53.50 53.50 53.50 53.50 58.40 58.40 58.40 58.40 59.40 64.90 70.30 75.60 |
244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 |
48.07 53.57 59.53 59.53 64.74 64.74 69.94 69.94 79.62 79.62 79.62 79.62 86.91 86.91 86.91 86.91 88.40 96.58 104.62 112.51 |
7.92 8.94 10.03 10.03 11.05 11.05 11.99 11.99 13.84 13.84 13.84 13.84 15.11 15.11 15.11 15.11 15.47 17.07 18.64 20.24 |
228.60 226.60 224.40 224.40 222.40 222.40 220.50 222.50 216.80 216.80 216.80 216.80 214.25 214.25 214.25 214.25 213.50 210.30 207.20 204.00 |
224.66 222.63 222.25 e 220.45 218.41 218.41 216.54 216.54 215.90 e 215.90 e 212.83 212.83 212.72 e 212.72 e 210.29 210.29 209.58 206.38 203.23 200.02 |
46.20 51.93 57.99 57.99 63.61 63.61 68.75 68.75 78.72 78.72 78.72 78.72 85.47 85.47 85.47 85.47 87.37 95.73 103.82 111.93 |
11.00 10.36 9.69 9.69 — — — — — — — — — — — — — — — — |
— 14.48 13.59 13.59 12.78 12.84 f 12.03 12.09 f 10.57 10.63 f 10.57 10.63 f 9.58 9.65 f 9.58 9.65 f — — — — |
— 13.87 12.97 12.97 12.15 12.15 11.39 11.39 9.92 9.92 9.92 9.92 8.92 8.92 8.92 8.92 — — — — |
— 2.74 1.84 1.84 1.01 1.01 0.25 0.25 –1.22 –1.22 –1.22 –1.22 –2.22 –2.22 –2.22 –2.22 — — — — |
| Labels a | Outside Diameter |
Nominal Linear Mass T& C b,c |
Wall Thick- ness |
Inside Diameter |
Drift Diameter |
Calculated Mass c | |||||
| Plain- end |
em, Mass Gain or Loss Due to End Finishing d kg |
||||||||||
| Round Thread | Buttress Thread | ||||||||||
| D mm |
kg/m | t mm |
d mm |
mm | wpe kg/m |
Short | Long | RC | SCC | ||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 10 3/4 |
32.75 40.50 45.50 45.50 51.00 51.00 55.50 55.50 55.50 55.50 60.70 60.70 65.70 65.70 73.20 79.20 85.30 |
273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 |
48.74 60.27 67.71 67.71 75.90 75.90 82.59 82.59 82.59 82.59 90.33 90.33 97.77 97.77 108.93 117.86 126.94 |
7.09 8.89 10.16 10.16 11.43 11.43 12.57 12.57 12.57 12.57 13.84 13.84 15.11 15.11 17.07 18.64 20.24 |
258.90 255.30 252.70 252.70 250.20 250.20 247.90 247.90 247.90 247.90 245.40 245.40 242.80 242.80 238.90 235.80 232.60 |
254.91 251.31 250.82 e 248.77 246.23 246.33 244.48 e 244.48 e 243.94 243.94 241.40 241.40 238.86 238.86 234.95 231.80 228.60 |
46.50 57.91 65.87 65.87 73.75 73.75 80.75 80.75 80.75 80.75 88.47 88.47 96.12 96.12 107.76 116.95 126.19 |
13.94 11.91 11.00 11.00 10.11 10.16 f 9.30 9.35 f 9.30 9.35 f 8.42 8.47 f 7.54 7.60 f — — — |
— — — — — — — — — — — — — — — — — |
— 15.38 14.21 14.21 13.05 13.05 12.25 12.01 12.25 12.01 11.07 10.87 9.98 9.74 — — — |
— 3.03 1.86 1.86 0.70 0.70 –0.09 –0.34 –0.09 –0.34 — — — — — — — |
| 11 3/4 11 3/4 11 3/4 11 3/4 11 3/4 11 3/4 11 3/4 11 3/4 11 3/4 11 3/4 11 3/4 |
42.00 42.00 47.00 54.00 60.00 60.00 60.00 60.00 65.00 65.00 71.00 |
298.45 298.45 298.45 298.45 298.45 298.45 298.45 298.45 298.45 298.45 298.45 |
62.50 62.50 69.94 80.36 89.29 89.29 89.29 89.29 96.73 96.73 105.66 |
8.46 8.46 9.52 11.05 12.42 12.42 12.42 12.42 13.56 13.56 14.78 |
281.50 281.50 279.41 276.40 273.60 273.60 273.60 273.60 271.30 271.30 268.90 |
279.40 e 277.50 275.44 272.39 269.88 e 269.88 e 269.65 269.65 e 269.88 e 267.36 264.92 |
62.56 62.56 67.83 78.32 87.61 87.61 87.61 87.61 95.27 95.27 103.40 |
13.27 13.27 12.42 11.23 10.17 9.77 f 10.17 9.77 f — — — |
— — — — — — — — — — — |
— — 16.04 14.50 13.12 13.12 13.12 13.12 — — — |
— — — — — — — — — — — |
| Labels a | Outside Diameter |
Nominal Linear Mass T& C b,c |
Wall Thick- ness |
Inside Diameter |
Drift Diameter |
Calculated Mass c | |||||
| Plain- end |
em, Mass Gain or Loss Due to End Finishing d kg |
||||||||||
| Round Thread | Buttress Thread | ||||||||||
| D mm |
kg/m | t mm |
d mm |
mm | wpe kg/m |
Short | Long | RC | SCC | ||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 13 3/8 13 3/8 13 3/8 13 3/8 13 3/8 13 3/8 13 3/8 13 3/8 13 3/8 |
48.00 54.50 61.00 68.00 68.00 72.00 72.00 72.00 72.00 |
339.72 339.72 339.72 339.72 339.72 339.72 339.72 339.72 339.72 |
71.43 81.10 90.78 101.19 101.19 107.15 107.15 107.15 107.15 |
8.38 9.65 10.92 12.19 12.19 13.06 13.06 13.06 13.06 |
322.96 320.42 317.88 315.34 315.34 313.60 313.60 313.60 313.60 |
318.99 316.45 313.91 311.37 311.37 311.15 e 311.15 e 309.63 309.63 |
68.48 78.55 88.55 98.46 98.46 105.21 105.21 105.21 105.21 |
15.04 13.88 12.74 11.61 11.67 f 10.98 10.91 f 10.98 10.91 e |
— — — — — — — — — |
— 17.91 16.44 14.97 14.97 14.33 13.98 14.33 13.98 |
— — — — — — — — — |
| 16 16 16 16 |
65.00 75.00 84.00 109.00 |
406.40 406.40 406.40 406.40 |
96.73 111.61 125.01 162.21 |
9.53 11.13 12.57 16.66 |
387.40 384.10 381.30 373.10 |
382.57 379.37 376.48 368.30 |
96.73 108.49 122.09 160.13 |
18.59 16.66 14.92 — |
— — — — |
— 20.13 18.11 — |
— — — — |
| 18 5/8 | 87.50 | 473.08 | 130.21 | 11.05 | 450.98 | 446.22 | 125.91 | 33.60 | — | 39.25 | — |
| 20 20 20 20 |
94.00 94.00 106.50 133.00 |
508.00 508.00 508.00 508.00 |
139.89 139.89 158.49 197.93 |
11.13 11.13 12.70 16.13 |
485.70 485.70 482.60 475.70 |
480.97 480.97 477.82 470.97 |
136.38 136.38 155.13 195.66 |
20.50 20.61 18.22 13.03 |
27.11 27.26 g 24.27 17.84 |
24.78 24.78 22.00 16.02 |
— — — — |
| NOTE See also Figures D.1, D.2, and D.3. | |||||||||||
| a.Labels are for information and assistance in ordering. b.Nominal linear masses, threaded and coupled (Column 4) are shown for information only. c.The densities of martensitic chromium steels (L80 Types 9Cr and 13Cr) are less than those of carbon steels; The masses shown are therefore not accurate for martensitic chromium steels; A mass correction factor of 0.989 shall be used. d.Mass gain or loss due to end finishing; See 8.5. e.Drift diameter for most common bit size; This drift diameter shall be specified in the purchase agreement and marked on the pipe; See 8.10 for drift requirements. f.Based on 758 MPa minimum yield strength or greater. g.Based on 379 MPa minimum yield strength. |
|||||||||||
Chemical Composition for Casing and Tubing, Mass Fraction (%):
| 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 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| H40 | — | — | — | — | — | — | — | — | — | — | — | 0.030 | 0.030 | — |
| J55 | — | — | — | — | — | — | — | — | — | — | — | 0.030 | 0.030 | — |
| K55 | — | — | — | — | — | — | — | — | — | — | — | 0.030 | 0.030 | — |
| N80 | 1 | — | — | — | — | — | — | — | — | — | — | 0.030 | 0.030 | — |
| N80 | Q | — | — | — | — | — | — | — | — | — | — | 0.030 | 0.030 | — |
| R95 | — | — | 0.45 c | — | 1.90 | — | — | — | — | — | — | 0.030 | 0.030 | 0.45 |
| L80 | 1 | — | 0.43 a | — | 1.90 | — | — | — | — | 0.25 | 0.35 | 0.030 | 0.030 | 0.45 |
| L80 | 9Cr | — | 0.15 | 0.30 | 0.60 | 0.90 | 1.10 | 8.00 | 10.0 | 0.50 | 0.25 | 0.020 | 0.010 | 1.00 |
| L80 | 13Cr | 0.15 | 0.22 | 0.25 | 1.00 | — | — | 12.0 | 14.0 | 0.50 | 0.25 | 0.020 | 0.010 | 1.00 |
| C90 | 1 | — | 0.35 | — | 1.20 | 0.25 b | 0.85 | — | 1.50 | 0.99 | — | 0.020 | 0.010 | — |
| T95 | 1 | — | 0.35 | — | 1.20 | 0.25 d | 0.85 | 0.40 | 1.50 | 0.99 | — | 0.020 | 0.010 | — |
| C110 | — | — | 0.35 | — | 1.20 | 0.25 | 1.00 | 0.40 | 1.50 | 0.99 | — | 0.020 | 0.005 | — |
| P110 | e | — | — | — | — | — | — | — | — | — | — | 0.030 e | 0.030 e | — |
| Q125 | 1 | — | 0.35 | 1.35 | — | 0.85 | — | 1.50 | 0.99 | — | 0.020 | 0.010 | — | |
| NOTE Elements shown shall be reported in product analysis. | ||||||||||||||
| a.The carbon content for L80 may be increased up to 0.50 % maximum if the product is oil-quenched or polymer-quenched. b.The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the wall thickness is less than 17.78 mm. c.The carbon content for R95 may be increased up to 0.55 % maximum if the product is oil-quenched. d.The molybdenum content for T95 Type 1 may be decreased to 0.15 % minimum if the wall thickness is less than 17.78 mm. e.For EW Grade P110, the phosphorus content shall be 0.020 % maximum and the sulfur content 0.010 % maximum. |
||||||||||||||
Tensile, Yield and Hardness Requirements for Casing and Tubing:
| Grade | Type | Total Elongation Under Load % |
Yield Strength MPa |
Tensile Strength | Hardness a,c max |
Specified Wall Thickness |
Allowable Hardness Variation b |
||
| min | max | min MPa | HRC | HBW | mm | HRC | |||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| H40 | — | 0.5 | 276 | 552 | 414 | — | — | — | — |
| J55 | — | 0.5 | 379 | 552 | 517 | — | — | — | — |
| K55 | — | 0.5 | 379 | 552 | 655 | — | — | — | — |
| N80 N80 |
1 Q |
0.5 0.5 |
552 552 |
758 758 |
689 689 |
—
— |
—
— |
—
— |
—
— |
| R95 | — | 0.5 | 655 | 758 | 724 | — | — | — | — |
| L80 L80 L80 |
1 9Cr 13Cr |
0.5 0.5 0.5 |
552 552 552 |
655 655 655 |
655 655 655 |
23.0 23.0 23.0 |
241 241 241 |
—
— — |
—
— — |
| C90 | 1 | 0.5 | 621 | 724 | 689 | 25.4 | 255 | ≤12.70 12.71 to 19.04 19.05 to 25.39 ≥ 25.40 |
3.0 4.0 5.0 6.0 |
| T95 | 1 | 0.5 | 655 | 758 | 724 | 25.4 | 255 | ≤12.70 12.71 to 19.04 19.05 to 25.39 ≥ 25.40 |
3.0 4.0 5.0 6.0 |
| C110 | — | 0.7 | 758 | 828 | 793 | 30.0 | 286 | ≤12.70 12.71 to 19.04 19.05 to 25.39 ≥ 25.40 |
3.0 4.0 5.0 6.0 |
| P110 | — | 0.6 | 758 | 965 | 862 | — | — | — | — |
| Q125 | 1 | 0.65 | 862 | 1034 | 931 | b | — | ≤12.70 12.71 to 19.04 ≥19.05 |
3.0 4.0 5.0 |
| a.In case of dispute, laboratory Rockwell C hardness testing shall be used as the referee method. b.No hardness limits are specified, but the maximum variation is restricted as a manufacturing control in accordance with 7.8 and 7.9. c.For through-wall hardness tests of Grades L80 (all types), C90, T95 and C110, the requirements stated in HRC scale are for maximum mean hardness number. |
|||||||||
How to Inspect Tubing and Casing in China?
We Check the Mechanical Properties of the Tube’s Chemical Composition as Well as the Dimensions and Air Tightness of the Connecting Fittings at the End of the Tube. We Can Also Help You to Appoint BV, SGS or TUV for Inspection.
How Long Is Casing Joint Length?
Casing Joint Is Available in 3ft, 6ft, 12ft, 15ft, 18ft, 21ft and Other Customized Lengths. Please Feel Free to Contact Us if You Have a Need for the Lengths.
Do You Provide Connection Data Sheet?
Yes We Will Provide It, But We Have a Strict Confidentiality System and We Only Allow It to Be Used. Please Respect Our Patents. For Example, Here Is a Reference Drawing of a Buckle Type:
API Series of Casing and Tubing Colors and Color Rings:
| Series | Grade | Color | Casing Coupling | Body |
| API series | H40 |  |
N/M | N/M |
| J55 |  |
Bright green | A bright green ring+ a white ring | |
| K55 |  |
Bright green | Two bright green rings | |
| N80 1TPYE |  |
Red | A red ring | |
| M65 |  |
Red with a bright green ring | one brown ring+ one blue ring | |
| N80 Q |  |
Red + a green ring | One red ring + one bright green ring | |
| R95 |  |
Brown | A brown ring | |
| L80 1TPYE | |
Red+ one brown ring | A red ring+ one brown ring | |
| L80 9Cr |  |
Not+ two yellow rings | a red ring one brown ring+ Two yellow rings | |
| L80 13Cr |  |
Not+ one yellow ring | a red ring+ one brown ring A yellow ring | |
| C90 |  |
Purple. | A purple ring | |
| T95 |  |
Silver | one silver ring | |
| C110 |  |
White+ two brown rings | A white ring+ two brown rings | |
| P110 |  |
White | A white ring | |
| Q125 |  |
Orange | An orange ring |
| Series | Grade | Color | Casing Coupling | Body |
| Anti-Crush Series | CS80S |  |
Red+ one brown ring + one yellow ring | A red ring A yellow ring |
| CS90S |  |
Purple.+ one yellow ring | A purple ring+ one yellow ring | |
| CS95S | |
Silver+ one yellow ring | one silver ring + one yellow ring | |
| CS110S |  |
White + one yellow ring | one white ring + one yellow ring | |
| L80-3CrS |  |
Red with a yellow ring | Plus a yellow ring | |
| CS80SS |  |
Red + one brown ring + two yellow rings | A red ring+Two yellow rings | |
| CS90SS |  |
Purple.+ Two yellow rings | A purple ring+ two yellow rings | |
| CS95SS |  |
Silver + Two yellow rings | one silver ring+ two yellow rings | |
| CS110SS |  |
White + two yellow rings | A white ring+ two yellow rings | |
| L80-3CrSS | |
Red + Two yellow rings | Red two yellow rings | |
| CS80T |  |
Blue+ a red ring | A blue ring + a red ring | |
| CS95T |  |
Brown + a red ring | A brown ring+ a red ring | |
| CS110T |  |
White + a red ring | A white ring+ a red ring | |
| CS95TT |  |
Brown+ two red rings | A brown ring+ two red rings | |
| CS110TT |  |
White + two red rings | A white ring+ two red rings | |
| CS125TT |  |
Orange+ two red rings | An orange ring+ two red rings |
If You Need to Know More About Casing and Tubing, Please Feel Free to Contact Us!
Get an Instant Quote Now