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Home>>Product>>Carbon & Alloy Steel Tube>> Tubing And Casing
08 Tubing And Casing

■ Specification & Steel Grade:

API SPEC 5CT: H40, J55, K55, N80, L80, P110 etc;

■ Size: OD 1/8” to 48”, WT 1.2 to 60.0mm, Length Max.18 Meters;

■ Application: Tubing is used for extracting petroleum and natural gas from a well.

Casing serves as walls of a well.

Tubing size:
Size Designation Weight Designation Outside Diameter Wall Thickness Type of End Finish
T&C Non-Upset T&C External Upset In mm In mm Grade
H40 J55 L80-1 N80 1Q C90 T95 P110
1.900" 2.75 2.9 1.900 48.26 0.145 3.68 PNU PNU PNU PNU PNU PNU –
3.65 3.73 1.900 48.26 0.200 5.08 PU PU PU PU PU PU PU
2-3/8" 4.00 – 2.375 60.32 0.167 4.24 PU PN PN PN PN PN –
4.60 4.70 2.375 60.32 0.190 4.83 PNU PNU PNU PNU PNU PNU PNU
5.80 5.95 2.375 60.32 0.254 6.45 – – PNU PNU PNU PNU PNU
2-7/8" 6.40 6.50 2.875 73.02 0.217 5.51 PNU PNU PNU PNU PNU PNU PNU
7.80 7.90 2.875 73.02 0.276 7.01 – – PNU PNU PNU PNU PNU
8.60 8.70 2.875 73.02 0.308 7.82 – – PNU PNU PNU PNU PNU
3-1/2" 7.70 – 3.500 88.9 0.216 5.49 PU PN PN PN PN PN –
9.20 9.30 3.500 88.9 0.254 6.45 PNU PNU PNU PNU PNU PNU PNU
10.20 – 3.500 88.9 0.289 7.34 PN PN PN PN PN PN –
12.70 12.95 3.500 88.9 0.375 9.52 – – PNU PNU PNU PNU PNU
4" 9.50 – 4.000 101.6 0.226 5.74 PN PN PN PN PN PN PN
10.70 11.00 4.000 101.6 0.262 6.65 PU PU PU PU PU PU PU
13.20 – 4.000 101.6 0.330 8.38 – – P – P P –
4-1/2" 12.60 12.75 4.500 114.3 0.271 6.88 PNU PNU PNU PNU PNU PNU –
Casing size:
Size Designation Weight Designation Outside Diameter Wall Thickness Type of End Finish
In mm In mm Grade
H40 J55 L80-1 N80 1Q C90 T95 P110
4-1/2" 9.50 4.500 114.3 0.205 5.21 PS PS PS – – – –
10.50 4.500 114.3 0.224 5.69 – PSB PSB – – – –
11.60 4.500 114.3 0.250 6.35 – PSLB PLB PLB PLB PLB PLB
13.50 4.500 114.3 0.290 7.37 – – PLB PLB PLB PLB PLB
15.10 4.500 114.3 0.337 8.56 – – – – – – PLB
5" 11.50 5.000 127.0 0.220 5.59 – PS PS – – – –
13.00 5.000 127.0 0.253 6.43 – PSLB PSLB – – – –
15.00 5.000 127.0 0.296 7.52 – PSLB PLB PSLB PSLB PSLB PSLB
18.00 5.000 127.0 0.362 9.19 – – PLB PSLB PSLB PSLB PSLB
21.40 5.000 127.0 0.437 11.10 – – PLB PLB PLB PLB PLB
5 1/2" 14.00 5.500 139.7 0.244 6.20 PS PS PS – – – –
15.50 5.500 139.7 0.275 6.98 – PSLB PSLB – – – –
17.00 5.500 139.7 0.304 7.72 – – PLB PSLB PSLB PSLB PSLB
20.00 5.500 139.7 0.361 9.17 – – PLB PSLB PSLB PSLB PSLB
23.00 5.500 139.7 0.415 10.54 – – PLB PSLB PSLB PSLB PSLB

Note: P—plain-end; S—Short round thread; L—Long round thread; B—Buttress thread



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