API 5ct k55 seamless steel casing tube
API 5ct k55 seamless steel casing tube
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- Commodity name: API 5ct k55 seamless steel casing tube
API 5CT Grade K55 Carbon Steel Seamless Tubings are carbon steel pipes, strictly manufactured as per API (AMERICAN PETROLEUM INSTITUTE) to meet the clients requirements. API 5CT Grade K55 carbon steel tubings are provided with multiple end connections like non-Upset ends and External Upset Ends.
Product introduction
API-5CT K55 oilfield casing pipe is very similar to J55, there is no significant difference in the chemical composition
and yield strength, however the ultimate tensile strength of K55 is higher than J55 steel, K55/J55 are 655MPa and
517MPa respectively.
K55 has better mechanical and thermal fatigue resistance and crack resistance than J55. For a thermal production well,
the heavy wall K55 casing is appropriate instead of J55 casing. The former has a better thermal fatigue resistance property
than the latter.
Inspection
Physical properties are checked and each length hydrostatically tested, normally to only 3,000 psi in the plain end (unthreaded) condition.
The following are also checked:
Dimensions
Weights
Straightness
Lengths
Part of this inspection is to drift all lengths.
Despite all the American Petroleum Institute (API) specifications and testing, some tubing defects are still found after delivery; thus, some operators
do further inspection.
Inspection Method:
Size and surface inspection
NDT and pressure test and third party certication
Hydrostatic
Drifting test
Physical and chemicail analysis
Hardness and pressure test.
Electromagnetic
Magnetic particle
UltrasonicTechnical data
Dimensions And Weight
Size Weight Outside Diameter Wall Thickness End Finish Grade in mm in mm J55K55 L80 N80 C90T95 P110 4 1/2 9.50 4.500 114.3 0.205 5.21 PS – – – – 10.50 0.224 5.69 PSB – – – – 11.60 0.250 6.35 PSLB PLB PLB PLB PLB 13.50 0.290 7.37 – PLB PLB PLB PLB 15.10 0.337 9.56 – – – – PLB 5 11.50 5.00 127.00 0.220 5.59 PS – – – – 13.00 0.253 6.43 PSLB – – – – 15.00 0.296 7.52 PSLB PLB PLB PLBE PLB 18.00 0.362 9.19 – PLB PLB PLBE PLB 21.40 0.437 11.10 – PLB PLB PLB PLB 23.20 0.478 12.14 – PLB 24.10 0.500 12.70 – PLB 5 1/2 14.00 5.500 139.7 0.244 6.20 PS – – – – 15.50 0.275 6.98 PSLB – – – – 17.00 0.304 7.72 PSLB PLB PLB PLBE PLB 20.00 0.361 9.17 – PLB PLB PLBE PLB 23.00 0.415 10.54 – PLB PLB PLBE PLB 6 5/8 20.00 6.625 168.28 0.288 7.32 PSLB – – – – 24.00 0.352 8.94 PSLB PLB PLB PLBE PLB 28.00 0.417 10.59 – PLB PLB PLBE PLB 32.00 0.475 12.06 – PLB PLB PLBE PLB 7 17.00 7.00 177.80 0.231 5.87 – – – – – 20.00 0.272 6.91 PS – – – – 23.00 0.317 8.05 PSLB PLB PLB PLBE – 26.00 0.362 9.19 PSLB PLB PLB PLBE PLB 29.00 0.408 10.36 – PLB PLB PLBE PLB 32.00 0.453 11.51 – PLB PLB PLBE PLB 35.00 0.498 12.65 – PLB PLB PLBE PLB 38.00 0.540 13.72 – PLB PLB PLBE PLB 7 5/8 24.00 7.625 193.68 0.300 7.62 – – – – – 26.40 0.328 8.33 PSLB PLB PLB PLBE PLB 29.70 0.375 9.52 – PLB PLB PLBE PLB 33.70 0.430 10.92 – PLB PLB PLBE PLB 39.00 0.500 12.70 – PLB PLB PLBE PLB 42.80 0.562 14.27 – PLB PLB PLB PLB 45.30 0.595 15.11 – PLB PLB PLB PLB 47.10 0.625 15.88 – PLB PLB PLB PLB 8 5/8 24.00 8.625 219.08 0.264 6.71 PS – – – – 28.00 0.304 7.72 – – – – – 32.00 0.352 8.94 PSLB – – – – 36.00 0.400 10.16 PSLB PLB PLB PLBE PLB 40.00 0.450 11.43 – PLB PLB PLBE PLB 44.00 0.500 12.70 – PLB PLB PLBE PLB 49.00 0.557 14.15 – PLB PLB PLBE PLB 9 5/8 32.30 9.625 244.48 0.312 7.92 – – – – – 36.00 0.352 8.94 PSLB – – – – 40.00 0.395 10.03 PSLB PLB PLB PLBE – 43.50 0.435 11.05 – PLB PLB PLBE PLB 47.00 0.472 11.99 – PLB PLB PLBE PLB 53.50 0.545 13.84 – PLB PLB PLBE PLB 58.40 0.595 15.11 – PLB PLB PLB PLB 10 3/4 32.75 10.75 273.05 0.279 7.09 – – – – – 40.50 0.350 8.89 PSB – – – – 15.50 0.400 10.16 PSB – – – – 51.00 0.450 11.43 PSB PSB PSB PSBE PSB 55.50 0.495 12.57 – PSB PSB PSBE PSB 60.70 0.545 13.84 – – – PSBE PSB 65.70 0.595 15.11 – – – PSB PSB 13 3/8 48.00 13.375 339.73 0.330 8.38 – – – – – 54.50 0.380 9.65 PSB – – – – 61.00 0.430 10.92 PSB – – – – 68.00 0.480 12.19 PSB PSB PSB PSB PSB 72.00 0.514 13.06 – PSB PSB PSB PSB 16 65.00 16 406.40 0.375 9.53 – – – – – 75.00 0.438 11.13 PSB – – – – 84.00 0.495 12.57 PSB – – – – 109.00 0.656 16.66 P P P – P 18 5/8 87.50 18.625 473.08 0.435 11.05 PSB – – – – 20 94.00 20 508.00 0.438 11.13 PSLB – – – – 106.50 0.500 12.70 PSLB – – – – 133.00 0.635 16.13 PSLB – – – – Chemical Properties Carbon Silicon Manganese Phosphorous Sulphur Molybdenum Nickel Chromium Copper Others – – – 0.03 0.03 – – – – – Mechanical Properties Yield Strength Tensile Strength Elongation A5 min MPa min ksi min MPa min MPa min ksi min Percentage 655 – 95 – Key words:- API 5ct k55 seamless steel casing tube
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Tianjin Bohai Metal
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