K55,Steel Coil/Plate/Sheet,External Polyethylene Coating pipe,Stainless Steel Plate

K55

Stainless Steel Bar,FBE Coating pipe,Rectangular Steel Tube
K55,Steel Coil/Plate/Sheet,External Polyethylene Coating pipe,Stainless Steel Plate

K55

API 5CT K55 is a pipe grade specified by the American Petroleum Institute. API 5CT K55 is a type of well casing that is typically used in well drilling operations. The casing and tubing are OCTG (oil country tubular goods) that are used to form the walls of the well. The steel pipe is placed in the well and held in place by cement. The cement helps to protect the well from collapse and keeps the well fluids from escaping. API 5CT K55 is a popular choice for well drilling because it is durable and can withstand high temperatures and pressures.
Send Email

  • CHEMICAL COMPOSITION OF API 5CT K55

    Grade Type C Mn Mo Cr Ni max. Cu max. P max. S max. Si max.
    min. max. min. max. min. max. min. max.
    K55 – 0.34 0.38 1.25 1.5 – – – 0.15 – 0.2 0.02 0.015 –
    a) The carbon content for L80 may be increased up to 0.50 % maximum if the product is oil-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.
    f) NL = no limit. Elements shown shall be reported in product analysis.

  • MECHANICAL ANALYSIS OF API 5CT K55

    API 5CT Casing Pipe Standard API 5CT Casing Pipe Type
    API 5CT Casing Pipe Tensile Strength
    MPa
    API 5CT Casing Pipe Yield Strength
    MPa
    API 5CT Casing Pipe Hardness
    Max.
    API SPEC 5CT – ≥517 ≥655 —

  • API CASING/ API 5CT K55 CASING TUBING SPECIFICATIONS

    - Specification & Size of API 5CT K55 Tubing

    DN O. D. Weight W. T. End Processing
    Non-upset coupling-thread Upset coupling-thread Steel Grade
    in mm lb./ft. lb./ft. in mm H40 J55 L80 N80 C90 T95 P110
    2 3/8 2.38 60.3 4 – 0.167 4.24 PU PN PN PN PN PN –
    4.6 4.7 0.19 4.83 PNU PNU PNU PNU PNU PNU PNU
    5.8 5.95 0.254 6.45 – – PNU PNU PNU PNU PNU
    6.6 – 0.295 7.49 – – P – P P –
    7.35 7.45 0.336 8.53 – – PU – PU PU –
    2 7/8 2.88 73 6.4 6.5 0.217 5.51 PNU PNU – – – – –
    7.8 7.9 0.276 7.01 – – – – – – –
    8.6 8.7 0.308 7.82 – – PLB PLB PLBE – PLB
    9.35 9.45 0.34 8.64 – – PLB PLB PLBE – PLB
    10.5 – 0.392 9.96 – – PLB PLB PLB – PLB
    11.5 – 0.44 11.18 – – – – PLB –  
    3 1/2 3.5 88.9 7.7 – 0.216 5.49 PN PN PN PN PN PN –
    9.2 9.3 0.254 6.45 PNU PNU PNU PNU PNU PNU PNU
    10.2 – 0.289 7.34 PN PN PN PN PN PN –
    12.7 12.95 0.375 9.52 – – PNU PNU PNU PNU PNU
    14.3 – 0.43 10.92 – – P – P P –
    15.5 – 0.476 12.09 – – P – P P –
    17 – 0.53 13.46 – – P – P P –
    4 4 102 9.5 – 0.226 5.74 PN PN PN PN PN PN –
    – 11 0.262 6.65 PU PU PU PU PU PU –
    13.2 – 0.33 8.38 – – P – P P –
    16.1 – 0.415 10.54 – – P – P P –
    18.9 – 0.5 12.7 – – P – P P –
    22.2 – 0.61 15.49 – – P – P P –
    4 1/2 4.5 114 12.6 12.75 0.271 6.88 PNU PNU PNU PNU PNU PNU –
    15.2 – 0.337 8.56 – – P – P P –
    17 – 0.38 9.65 – – P – P P –
    18.9 – 0.43 10.92 – – P – P P PLB
    21.5 – 0.5 12.7 – – P – P P PLB
    23.7 – 0.56 14.22 – – P – P P PLB
    26.1 – 0.63 16 – – P – P P PLB
    P——Plain；N—— Non-upset coupling-thread；U—— Upset coupling-thread； L——Integral


    - Specification & Size of API 5CT K55 Casing

    DN O. D. Weight W. T.   End Machining Form
      Steel Grade
    in mm lb/ft kg/m in mm H40 J55 L80 N80 C90 P110
    K55 T95
    4 1/2 4.500 114.3 9.5 14.14 0.205 5.21 PS PS – – – –
    10.5 15.63 0.224 5.69 – PSB – – – –
    11.6 17.26 0.250 6.35 – PSLB PLB PLB PLB PLB
    13.5 20.09 0.290 7.37 – – PLB PLB PLB PLB
    15.1 22.47 0.337 9.56 – – – – – PLB
    5 5.000 127 11.5 17.11 0.220 5.59 – PS – – – –
    13 19.35 0.253 6.43 – PSLB – – – –
    15 22.32 0.296 7.52 – PSLB PLB PLB PLBE PLB
    18 26.79 0.362 9.19 – – PLB PLB PLBE PLB
    21.4 31.85 0.437 11.1 – – PLB PLB PLB PLB
    23.2 34.53 0.478 12.14 – – – – PLB –
    24.1 35.86 0.500 12.7 – – – – PLB –
    5 1/2 5.500 139.7 14 20.83 0.244 6.2 PS PS – – – –
    15.5 23.07 0.275 6.98 – PSLB – – – –
    17 25.3 0.304 7.72 – PSLB PLB PLB PLBE PLB
    20 29.76 0.361 9.17 – – PLB PLB PLBE PLB
    23 34.23 0.415 10.54 – – PLB PLB PLBE PLB
    26.8 39.88 0.500 12.7 – – – – – –
    29.7 44.2 0.562 14.27 – – – – – –
    32.6 48.51 0.625 15.88 – – – – – –
    35.3 52.53 0.687 17.45 – – – – – –
    38 56.55 0.750 19.05 – – – – – –
    40.5 60.27 0.812 20.62 – – – – – –
    43.1 64.14 0.875 22.22 – – – – – –
    6 5/8 6.625 168.28 20 29.76 0.288 7.32 PS PSLB – – – –
    24 35.72 0.352 8.94 – PSLB PLB PLB PLBE PLB
    28 41.67 0.417 10.59 – – PLB PLB PLBE PLB
    32 47.62 0.475 12.06 – – PLB PLB PLBE PLB
    7 7.000 177.8 17 25.3 0.231 5.87 PS – – – – –
    20 29.76 0.272 6.91 PS PS – – – –
    23 34.23 0.317 8.05 – PSLB PLB PLB PLBE –
    26 38.69 0.362 9.19 – PSLB PLB PLB PLBE PLB
    29 43.16 0.408 10.36 – – PLB PLB PLBE PLB
    32 47.62 0.453 11.51 – – PLB PLB PLBE PLB
    35 52.09 0.498 12.65 – – PLB PLB PLBE PLB
    38 56.55 0.540 13.72 – – PLB PLB PLBE PLB
    42.7 63.54 0.625 15.88 – – – – – –
    46.4 69.05 0.687 17.45 – – – – – –
    50.1 74.56 0.750 19.05 – – – – – –
    53.6 79.77 0.812 20.62 – – – – – –
    57.1 84.97 0.875 22.22 – – – – – –
    7 5/8 7.625 193.68 24 35.72 0.300 7.62 PS – – – – –
    26.4 39.29 0.328 8.33 – PSLB PLB PLB PLBE PLB
    29.7 44.2 0.375 9.52 – – PLB PLB PLBE PLB
    33.7 50.15 0.430 10.92 – – PLB PLB PLBE PLB
    39 58.05 0.500 12.7 – – PLB PLB PLBE PLB
    42.8 63.69 0.562 14.27 – – PLB PLB PLB PLB
    45.3 67.41 0.595 15.11 – – PLB PLB PLB PLB
    47.1 70.09 0.625 15.88 – – PLB PLB PLB PLB
    51.2 76.19 0.687 17.45 – – – – – –
    55.3 80.3 0.750 19.05 – – – – – –
    8 5/8 8.625 219.08 24 35.72 0.264 6.71 – PS – – – –
    28 41.62 0.304 7.72 PS – – – – –
    32 47.62 0.352 8.94 PS PSLB – – – –
    36 53.57 0.400 10.16 – PSLB PLB PLB PLBE PLB
    40 59.53 0.450 11.43 – – PLB PLB PLBE PLB
    44 65.48 0.500 12.7 – – PLB PLB PLBE PLB
    49 72.92 0.557 14.15 – – PLB PLB PLBE PLB
    9 5/8 9.625 244.48 32.3 48.07 0.312 7.92 PS – – – – –
    36 53.57 0.352 8.94 PS PSLB – – – –
    40 59.53 0.395 10.03 – PSLB PLB PLB PLBE –
    43.5 64.73 0.435 11.05 – – PLB PLB PLBE PLB
    47 69.94 0.472 11.99 – – PLB PLB PLBE PLB
    53.5 79.62 0.545 13.84 – – PLB PLB PLBE PLB
    58.4 86.91 0.595 15.11 – – PLB PLB PLB PLB
    59.4 88.4 0.609 15.47 – – – – – –
    64.9 96.58 0.672 17.07 – – – – – –
    70.3 104.62 0.734 18.64 – – – – – –
    75.6 112.5 0.797 20.24 – – – – – –
    10 3/4 10.750 273.05 32.75 48.74 0.279 7.09 PS – – – – –
    40.5 60.27 0.350 8.89 PS PSB – – – –
    15.5 67.71 0.400 10.16 – PSB – – – –
    51 75.9 0.450 11.43 – PSB PSB PSB PSBE PSB
    55.5 82.59 0.495 12.57 – – PSB PSB PSBE PSB
    60.7 90.33 0.545 13.84 – – – – PSBE PSB
    65.7 97.77 0.595 15.11 – – – – PSB PSB
    73.2 108.93 0.672 17.07 – – – – – –
    79.2 117.86 0.734 18.64 – – – – – –
    85.3 126.94 0.797 20.24 – – – – – –
    11 3/4 11.750   42 62.5 0.333 8.46 PS – – – – –
    47 69.94 0.375 20.24 – – – – – –
    54 80.36 0.435 8.46 – – – – – –
    60 89.29 0.489 9.53 – – – – – –
    65 96.73 0.534 11.05 – – – – – –
    71 105.66 0.582 14.42 – – – – – –
    13 3/8 13.375 339.73 48 71.43 0.330 8.38 PS – – – – –
    54.5 81.1 0.380 9.65 – PSB – – – –
    61 90.78 0.430 10.92 – PSB – – – –
    68 101.19 0.480 12.19 – PSB PSB PSB PSB PSB
    72 107.15 0.514 13.06 – – PSB PSB PSB PSB
    16 16.000 406.4 65 96.73 0.375 9.53 PS – – – – –
    75 111.61 0.438 11.13 – PSB – – – –
    84 125.01 0.495 12.57 – PSB – – – –
    109 162.21 0.656 16.66 – P P P – P
    18 5/8 18.625 473.08 87.5 130.21 0.435 11.05 PS PSB – – – –
    20 20.000 508 94 139.89 0.438 11.13 PSL PSLB – – – –
    106.5 158.49 0.500 12.7 – PSLB – – – –
    133 197.93 0.635 16.13 – PSLB – – – –
    P——Plain；S——Short-thread；L——Long-thread；B——Buttress thread；E——Extreme thread
Follow us   facebook instagram twitter youtube linkedin

Stainless Steel Bar,FBE Coating pipe,Rectangular Steel Tube

LEAVE A MESSAGE HERE

Products

Workshop

Copyright @ 2023 Union Steel Industry Co.,Ltd All Rights Reserved Privacy Policy
We use cookies and other tracking technologies to improve your browsing experience on our website, to show you personalized content and targeted ads, to analyze our website traffic, and to understand where our visitors are coming from.
Accept
Decline