API 5CT K55 Casing Tubing

K55 Oil And Gas Api Casing Pipe Supplier

API 5CT K55 Casing Tubing

API 5CT K55 Casing Tubing

K55 Oil And Gas Api Casing Pipe

K55 Oil And Gas Api Casing Pipe

K55 API 5CT Tubing

K55 API 5CT Tubing


K55 API 5CT Tubing & Grade K55 Oil Well Drilling Casing Pipe Manufacturer

Table of Content


API 5CT K55 Casing Tubing Standard Specification

Dimensions ASTM, ASME and API
Seamless Pipes 4 to 219mm W. T.: 0.5 to 20mm
Welded Pipes 5.0 mm – 1219.2 mm
EFW Pipes 5.0 mm – 1219.2 mm
Size 15″NB TO 150″NB IN
Specialized in Large Diameter Size
Schedule SCH5, SCH10, SCH40, STD, SCH80, SCH160
Type Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form Round, Hydraulic Etc
Length Single Random, Double Random & Cut Length.
End Plain End, Beveled End, Treaded

Different Types of K55 API 5CT Tubing

API 5ct k55 material

API 5ct k55 material

API 5ct k55 Casing

API 5ct k55 Casing

K55 API 5CT Tubing

K55 API 5CT Tubing

K55 Api Oilfield Casing Pipe

K55 Api Oilfield Casing Pipe

K55 Api Steel Casing Pipe

K55 Api Steel Casing Pipe

Grade K55 Oil Well Drilling Casing Pipe

Grade K55 Oil Well Drilling Casing Pipe

API 5ct k55 Seamless Pipe

API 5ct k55 Seamless Pipe

K55 API 5CT Welded Tubing

K55 API 5CT Welded Tubing


Chemical Properties of API 5ct k55 Casing

Group Grade Type C Mn Mo Cr Ni max. Cu max. P max. S max. Si max.
min. max. min. max. min. max. min. max.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 H40 - - - - - - - - - - - 0.03 0.03 -
J55 - - - - - - - - - - - 0.03 0.03 -
K55 - - - - - - - - - - - 0.03 0.03 -
N80 1 - - - - - - - - - - 0.03 0.03 -
N80 Q - - - - - - - - - - 0.03 0.03 -
R95 - - 0.45 c - 1.9 - - - - - - 0.03 0.03 0.45
2 M65 - - - - - - - - - - - 0.03 0.03 -
　 L80 1 - 0.43 a - 1.9 - - - - 0.25 0.35 0.03 0.03 0.45
　 L80 9Cr - 0.15 0.3 0.6 0.9 1.1 8 10 0.5 0.25 0.02 0.01 1
　 L80 13Cr 0.15 0.22 0.25 1 - - 12 14 0.5 0.25 0.02 0.01 1
　 C90 1 - 0.35 - 1.2 0.25 b 0.85 - 1.5 0.99 - 0.02 0.01 -
　 T95 1 - 0.35 - 1.2 0.25 d 0.85 0.4 1.5 0.99 - 0.02 0.01 -
　 C110 - - 0.35 - 1.2 0.25 1 0.4 1.5 0.99 - 0.02 0.005 -
3 P110 e - - - - - - - - - - 0.030 e 0.030 e -
4 Q125 1 - 0.35 1.35 - 0.85 - 1.5 0.99 - 0.02 0.01 -

Check K55 Api Steel Casing Pipe size range

K55 API 5CT Tubing Mechanical Analysis

Standard Type Tensile Strength
MPa		 Yield Strength
MPa		 Hardness
Max.
API SPEC 5CT J55 ≥517 379 ~ 552 ----
K55 ≥517 ≥655 ---
N80 ≥689 552 ~ 758 ---
L80(13Cr) ≥655 552 ~ 655 ≤241HB
P110 ≥862 758 ~ 965 ----

API 5CT K55 Casing Tubing Dimensions

Codea Outer Dia Nominal weight
(with thread and
coupling) b,c		 Wall Thickness End processing type
mm kg/m mm H40 J55 M65 L80 N801 C90d P110 Q125d
In Lb/ft K55 C95 N80Q T95d
1 2 3 4 5 6 7 8 9 10 11 12 13
4-1-2 9.5 114.3 14.14 5.21 S S S - - - - -
4-1-2 10.5 114.3 15.63 5.69 - SB SB - - - - -
4-1-2 11.6 114.3 17.26 6.35 - SLB - LB LB - LB -
4-1-2 13.5 114.3 20.09 7.37 - - LB - LB - - -
4-1-2 15.1 114.3 22.47 8.56 - - - - - - LB LB
5 11.5 127 17.11 5.59 - S S - - - - -
5 13 127 19.35 6.43 - SLB SLB - - - - -
5 15 127 22.32 7.52 - SLB LB - - - LB -
5 18 127 26.79 9.19 - - LB - LB - - LB
5 21.4 127 31.85 11.1 - - LB - LB - - LB
5 23.2 127 34.53 12.14 - - - LB - - - LB
5 24.1 127 35.86 12.7 - - - LB - - - LB
5-1-2 14 139.7 20.83 6.2 S S S - - - - -
5-1-2 15.5 139.7 23.07 6.98 - SLB SLB - - - - -
5-1-2 17 139.7 25.3 7.72 - SLB LB - - LB - -
5-1-2 20 139.7 29.76 9.17 - - LB - LB - - -
5-1-2 23 139.7 34.23 10.54 - - - LB - LB - -
6-5-8 20 168.28 29.76 7.32 S SLB SLB - - - - -
6-5-8 24 168.28 35.72 8.94 - SLB LB - - LB - -
6-5-8 28 168.28 41.67 10.59 - - - - LB - LB -
6-5-8 32 168.28 47.62 12.06 - - - LB LB
7 17 177.8 25.3 5.87 S - - - - - - -
7 20 177.8 29.76 6.91 S S S - - - - -
7 23 177.8 34.23 8.05 - SLB LB LB - -
7 26 177.8 38.69 9.19 - SLB LB LB -
7 29 177.8 43.16 10.36 - - LB LB -
7 32 177.8 47.62 11.51 - - LB LB LB -
7 35 177.8 52.09 12.65 - - - LB LB LB
7-5-8 24 193.68 35.72 7.62 S - - - - - - -
7-5-8 26.4 193.68 39.29 8.33 - SLB LB LB -
7-5-8 29.7 193.68 44.2 9.52 - - LB LB -
7-5-8 33.7 193.68 50.15 10.92 - - LB LB -
7-5-8 39 193.68 58.04 12.7 - - - LB LB
7-5-8 42.8 193.68 63.69 14.27 - - - LB LB LB
7-5-8 45.3 193.68 67.41 15.11 - - - LB LB LB
7-5-8 47.1 193.68 70.09 15.88 - - - LB LB LB
8-5-8 24 219.08 35.72 6.71 - S S - - - - -
8-5-8 28 219.08 41.67 7.72 S - S - - - - -
8-5-8 32 219.08 47.62 8.94 S SLB SLB - - - - -
8-5-8 36 219.08 53.57 10.16 - SLB SLB LB LB -
8-5-8 40 219.08 59.53 11.43 - - LB LB -
8-5-8 44 219.08 65.48 12.7 - - - LB LB 　
8-5-8 49 219.08 72.92 14.15 - - - LB LB LB

ISO certified K55 Api Oilfield Casing Pipe Stockist in India

K55 Api Oilfield Casing Pipe Color Code

Name J55 K55 N80-1 N80-Q L80-1 P110
Casing a bright green band two bright green bands a bright red band a bright red band + a green band a red band + a brown band a bright white band
Coupling entire green coupling + a white band entire green coupling entire red coupling entire red coupling + a green band entire red coupling + a brown band entire white coupling

Tensile & Hardness Requirement of API 5ct k55 Seamless Pipe

Group Grade Type Total elongation under load % Yield strength MPa Tensile strength min. MPa Hardness a max. Specified wall thickness mm Allowable hardness variation b HRC
min. max . 　 HRC HBW
1 2 3 4 5 6 7 8 9 10 11
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
≤ 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
286
≤ 12.70 12.71 to 19.04 19.05 to 25.39. ≥ 25.40
3.0 4.0 5.0 6.0
3
P110
-
0.6
758
965
862
-
-
-
-
4
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 in accordance with 7.8 and 7.9 of API Spec. 5CT.

Check dimensions and specification of API K55 K55 material

K55 Api Oilfield Casing Pipe 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

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