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Casing & Tubing

API 5CT Q125 Casing

What is API 5CT Q125 Casing?

API 5CT Q125 Casing:

API 5CT Q125 Tubing:

API 5CT Q125 Casing Specification

Product NameSeamless Oil Pipe
MaterialGR.B,ST52, ST35, ST42, ST45,X42, X46, X52, X56, X60, X65, X70,SS304, SS316 etc.
SizeSize 1/4” to 24” Outside Diameter 13.7 mm to 610 mm
StandardAPI5L , ASTM A106 Gr.B, ASTM A53 Gr.B,ANSI A210-1996, ANSI B36.10M-2004 , ASTM A1020-2002,ASTM A179-1990 ,BS 3059-2,DIN 17175 ,DIN 1630 ,DIN 2448
CertificatesAPI5L, ISO 9001:2008,SGS, BV,CCIC
Wall thicknessSCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100 SCH120, SCH160, XS, XXS
Surface Treatmentblack paint, varnish, oil, galvanized, anti corrosion coatings
MarkingStandard marking, or according to your request. Marking Method: Spray white paint
Pipe EndsUnder 2 inch plain end. 2 inch and above Beveled. Plastic caps (small OD) ,Iron protector (large OD)
Pipe Length1. Single Random Length and double Random Length. 2. SRL:3M-5.8M DRL:10-11.8M or As clients requested length 3. fixed length(5.8m, 6m, 12m)
PackagingLoose package; Packaged in bundles(2Ton Max); bundled pipes with two slings at the both end for easy loading and discharging; End with Plastic caps; wooden cases.
TestChemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, hydraulic testing , X-ray Test.
Applicationoil pipe; gas pipe
Advantages1.Reasonable price with excellent quality 2.Abundant stock and prompt delivery 3.Rich supply and export experience, sincere service 4.Reliable forwarder, 2-hour away from port.
Casing Pipe Specifications
Standards:API SPEC 5CT
Model in Common Use:2-3/8”, 2-7/8”, 3-1/2”, 4”, 4-1/2”
Length Range:R1(6.10-7.32m), R2(8.53-9.75m), R3(11.58-12.8m)
Steel Grade (Casing Grades, Tubing Grades):J55, K55, N80-1, N80-Q, L80, P110
Type of Screw Thread:Non upset threaded end(NUE), External upset threaded end(EUE)
SpecialtiesThreading Heat treating External upset Drifting (Full-length, or just ends) Hydrostatic Testing Full third-party inspection capabilities (EMI, SEA, and Weld Line) Couplings – EUE, AB Modified, turned down, special clearance couplings Coating to customer specifications Pup Joints
PRODUCTGRADEDIAMETEREND TYPE
Q125 TUBINGJ55, JFBNAU, L80, P110, 1% Chrome2.375” – 3.5”Plain End
EUE 8RD
Q125 CASINGJ-55, L80 HC, P110 HC4.5” – 9.625” (J55, L80 HC, P110 HC) 10.75” - 20” (J55)Plain End, STC, LTC, BTC
ODWallPE # / ftT&C # / ftCollarAPI DriftAvailable Grades
2.375″.1904.444.7EUE,
AB MOD1.901J55, J-FBNAU, N80, L80, P110
2.875″.2176.176.5EUE,
AB MOD2.347J55, J-FBNAU, N80, L80, P110
3.5″.2548.819.3EUE,
AB MOD2.867J55, J-FBNAU, N80, L80, P110
Pipe Casing Sizes, Oilfield Casing Sizes & Casing Drift Sizes
Outer Diameter (Casing Pipe Sizes)4 1/2”-20”, (114.3-508mm)
Standard Casing Sizes4 1/2”-20”, (114.3-508mm)
Thread TypeButtress thread casing, Long round thread casing, Short round thread casing
FunctionIt can protect the tubing pipe.
Name of PipesSpecificationSteel GradeStandard
D(S)(L)
(mm)(mm)(m)
Petroleum Casing Pipe127-5085.21-16.666-12J55. M55. K55.
L80. N80. P110.API Spec 5CT (8)
Petroleum Tubing26.7-114.32.87-16.006-12J55. M55. K55. L80. N80. P110.API Spec 5CT (8)
Coupling127-533.412.5-156-12J55. M55. K55. L80. N80. P110.API Spec 5CT (8)
GroupGradeTypeCMnMoCrNi max.Cu max.P max.S max.Si max.
min.max.min.max.min.max.min.max.
12345678910111213141516
1H40-----------0.030.03-
J55-----------0.030.03-
K55-----------0.030.03-
N801----------0.030.03-
N80Q----------0.030.03-
R95--0.45 c-1.9------0.030.030.45
2M65-----------0.030.03-
L801-0.43 a-1.9----0.250.350.030.030.45
L809Cr-0.150.30.60.91.18100.50.250.020.011
L8013Cr0.150.220.251--12140.50.250.020.011
C901-0.35-1.20.25 b0.85-1.50.99-0.020.01-
T951-0.35-1.20.25 d0.850.41.50.99-0.020.01-
C110--0.35-1.20.2510.41.50.99-0.020.005-
3P110e----------0.030 e0.030 e-
4Q1251-0.351.35-0.85-1.50.99-0.020.01-
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.
NL = no limit. Elements shown shall be reported in product 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 | ---- | |

GroupGradeTypeTotal elongation under load %Yield strength MPaTensile strength min. MPaHardness a max.Specified wall thickness mmAllowable hardness variation b HRC
min.max .HRCHBW
1234567891011
1H40-0.5276552414----
J55-0.5379552517----
K55-0.5379552655----
N8010.5552758689----
N80Q0.5552758689----
R95-0.5655758724----
2M65-0.544858658622235--
L8010.555265565523241--
L809Cr0.555265565523241--
L8013Cr0.555265565523241--
C9010.562172468925.4255≤ 12.70 12.71 to 19.04 19.05 to 25.39 ≥ 25.403.0 4.0 5.0 6.0
T9510.565575872425.4255≤ 12.70 12.71 to 19.04 19.05 to 25.39 ≥ 25.403.0 4.0 5.0 6.0
C110-0.775882879330286≤ 12.70 12.71 to 19.04 19.05 to 25.39. ≥ 25.403.0 4.0 5.0 6.0
3P110-0.6758965862----
4Q12510.658621034931b-≤ 12.70 12.71 to 19.04 ≥ 19.053.0 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 of API Spec. 5CT.
NameJ55K55N80-1N80-QL80-1P110
Casinga bright green bandtwo bright green bandsa bright red banda bright red band + a green banda red band + a brown banda bright white band
Couplingentire green coupling + a white bandentire green couplingentire red couplingentire red coupling + a green bandentire red coupling + a brown bandentire white coupling

| 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 | LB | LB | - | | 4-1-2 | 13.5 | 114.3 | 20.09 | 7.37 | - | - | LB | LB | LB | 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 | LB | LB | LB | - | | 5 | 18 | 127 | 26.79 | 9.19 | - | - | LB | LB | LB | LB | LB | LB | | 5 | 21.4 | 127 | 31.85 | 11.1 | - | - | LB | LB | LB | LB | LB | LB | | 5 | 23.2 | 127 | 34.53 | 12.14 | - | - | - | LB | LB | LB | LB | LB | | 5 | 24.1 | 127 | 35.86 | 12.7 | - | - | - | LB | LB | LB | 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 | LB | LB | LB | - | | 5-1-2 | 20 | 139.7 | 29.76 | 9.17 | - | - | LB | LB | LB | LB | LB | - | | 5-1-2 | 23 | 139.7 | 34.23 | 10.54 | - | - | LB | LB | LB | LB | 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 | LB | LB | LB | - | | 6-5-8 | 28 | 168.28 | 41.67 | 10.59 | - | - | LB | LB | LB | LB | LB | - | | 6-5-8 | 32 | 168.28 | 47.62 | 12.06 | - | - | - | LB | LB | LB | 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 | LB | LB | - | - | | 7 | 26 | 177.8 | 38.69 | 9.19 | - | SLB | LB | LB | LB | LB | LB | - | | 7 | 29 | 177.8 | 43.16 | 10.36 | - | - | LB | LB | LB | LB | LB | - | | 7 | 32 | 177.8 | 47.62 | 11.51 | - | - | LB | LB | LB | LB | LB | - | | 7 | 35 | 177.8 | 52.09 | 12.65 | - | - | - | LB | LB | 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 | SLB | LB | LB | LB | LB | - | | 7-5-8 | 29.7 | 193.68 | 44.2 | 9.52 | - | - | LB | LB | LB | LB | LB | - | | 7-5-8 | 33.7 | 193.68 | 50.15 | 10.92 | - | - | LB | LB | LB | LB | LB | - | | 7-5-8 | 39 | 193.68 | 58.04 | 12.7 | - | - | - | LB | LB | LB | LB | LB | | 7-5-8 | 42.8 | 193.68 | 63.69 | 14.27 | - | - | - | LB | LB | LB | LB | LB | | 7-5-8 | 45.3 | 193.68 | 67.41 | 15.11 | - | - | - | LB | LB | LB | LB | LB | | 7-5-8 | 47.1 | 193.68 | 70.09 | 15.88 | - | - | - | LB | LB | 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 | LB | LB | - | | 8-5-8 | 40 | 219.08 | 59.53 | 11.43 | - | - | LB | LB | LB | LB | LB | - | | 8-5-8 | 44 | 219.08 | 65.48 | 12.7 | - | - | - | LB | LB | LB | LB | | | 8-5-8 | 49 | 219.08 | 72.92 | 14.15 | - | - | - | LB | LB | LB | LB | LB |

| Codea | Outer diameter | Nominal weight (with thread and coupling) b,c | Wall thickness | End processing type | | | | | | | | | |---|---|---|---|---|---|---|---|---|---|---|---|---| | mm | kg/m | mm | H40 | J55 | M65 | L80 | N80 | C90d | P110 | Q125d | | | | In | Lb/ft | K55 | C95 | 1, Q | T95d | | | | | | | | | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | | 9-5-8 | 32.3 | 244.48 | 48.07 | 7.92 | S | - | - | - | - | - | - | - | | 9-5-8 | 36 | 244.48 | 53.57 | 8.94 | S | SLB | SLB | - | - | - | - | - | | 9-5-8 | 40 | 244.48 | 59.53 | 10.03 | - | SLB | SLB | LB | LB | LB | - | - | | 9-5-8 | 43.5 | 244.48 | 64.73 | 11.05 | - | - | LB | LB | LB | LB | LB | - | | 9-5-8 | 47 | 244.48 | 69.94 | 11.99 | - | - | LB | LB | LB | LB | LB | LB | | 9-5-8 | 53.5 | 244.48 | 79.62 | 13.84 | - | - | - | LB | LB | LB | LB | LB | | 9-5-8 | 58.4 | 244.48 | 86.91 | 15.11 | - | - | - | LB | LB | LB | LB | LB | | 10-3-4 | 32.75 | 273.05 | 48.74 | 7.09 | S | - | - | - | - | - | - | - | | 10-3-4 | 40.5 | 273.05 | 60.27 | 8.89 | S | SB | SB | - | - | - | - | - | | 10-3-4 | 45.5 | 273.05 | 67.71 | 10.16 | - | SB | SB | - | - | - | - | - | | 10-3-4 | 51 | 273.05 | 75.9 | 11.43 | - | SB | SB | SB | SB | SB | SB | - | | 10-3-4 | 55.5 | 273.05 | 82.59 | 12.57 | - | - | SB | SB | SB | SB | SB | - | | 10-3-4 | 60.7 | 273.05 | 90.33 | 13.84 | - | - | - | - | - | SB | SB | SB | | 10-3-4 | 65.7 | 273.05 | 97.77 | 15.11 | - | - | - | - | - | SB | SB | SB | | 11-3-4 | 42 | 298.45 | 62.5 | 8.46 | S | - | - | - | - | - | - | - | | 11-3-4 | 47 | 298.45 | 69.94 | 9.53 | - | SB | SB | - | - | - | - | - | | 11-3-4 | 54 | 298.45 | 80.36 | 11.05 | - | SB | SB | - | - | - | - | - | | 11-3-4 | 60 | 298.45 | 89.29 | 12.42 | - | SB | SB | SB | SB | SB | SB | SB | | 13-3-8 | 48 | 339.72 | 71.43 | 8.38 | S | - | - | - | - | - | - | - | | 13-3-8 | 54.5 | 339.72 | 81.1 | 9.65 | - | SB | SB | - | - | - | - | - | | 13-3-8 | 61 | 339.72 | 90.78 | 10.92 | - | SB | SB | - | - | - | - | - | | 13-3-8 | 68 | 339.72 | 101.19 | 12.19 | - | SB | SB | SB | SB | SB | SB | - | | 13-3-8 | 72 | 339.72 | 107.15 | 13.06 | - | - | - | SB | SB | SB | SB | SB | | 16 | 65 | 406.4 | 96.73 | 9.53 | S | - | - | - | - | - | - | - | | 16 | 75 | 406.4 | 111.61 | 11.13 | - | SB | SB | - | - | - | - | - | | 16 | 84 | 406.4 | 125.01 | 12.57 | - | SB | SB | - | - | - | - | - | | 18-5-8 | 87.5 | 473.08 | 130.21 | 11.05 | S | SB | SB | - | - | - | - | - | | 20 | 94 | 508 | 139.89 | 11.13 | SL | SLB | SLB | - | - | - | - | - | | 20 | 106.5 | 508 | 158.49 | 12.7 | - | SLB | SLB | - | - | - | - | - | | 20 | 133 | 508 | 197.93 | 16.13 | - | SLB | - | - | - | - | - | - | | S-Short round thread, L-Long round thread, B-Buttress thread | | | | | | | | | | | | | | a. Code is used for ordering reference. | | | | | | | | | | | | | | b. The nominal weight of threaded and coupled casing (column 2) is shown for reference only. | | | | | | | | | | | | | | c. Martensitic chromium steel (L80 9Cr and 13Cr) differs from carbon steel in density. The shown weight of martensitic chromium steel is not an exact value. The mass correction factor 0.989 can be used. | | | | | | | | | | | | | | d. C90, T95 and Q125 steel grade casing should be supplied according to specification, weight and wall thickness listed in the above table or order. | | | | | | | | | | | | |

SizeLinear Mass lb/ftOutside diameterWall thicknessType of end-finish
Grade
Non-upset
T﹠CEx-Upset
T﹠Cln.mmln.mmJ-55L-80N-801, N-80QC-90T-95P-110
2 3/8”4.00—2.37560.330.1674.24PNPNPNPNPN—
4.604.702.37560.330.1904.83PNUPNUPNUPNUPNUPNU
5.805.952.37560.330.2546.45—PNUPNUPNUPNUPNU
6.60—2.37560.330.2957.49—P—PP—
7.357.452.37560.330.3368.53—PU—PUPU—
2 7/8”6.406.502.87573.030.2175.51PUNPNUPNUPNUPNUPNU
7.807.902.87573.030.2767.01—PNUPNUPNUPNUPNU
8.608.702.87573.030.3087.82—PNUPNUPNUPNUPNU
9.359.452.87573.030.3408.64—PU—PUPU—
10.50—2.87573.030.3929.96—P—PP—
11.50—2.87573.030.44011.18—P—PP—
3 1/2”7.70—3.50088.900.2165.49PNPNPNPNPN—
9.209.303.50088.900.2546.45PNUPNUPNUPNUPNUPNU
10.20—3.50088.900.2897.34PNPNPNPNPN—
12.7012.953.50088.900.3759.52—PNUPNUPNUPNUPNU
14.30—3.50088.900.43010.92—P—PP—
15.50—3.50088.900.47612.09—P—PP—
17.00—3.50088.900.53013.46—P—PP—
4”9.50—4.000101.600.2265.74PNPNPNPNPNPU
10.7011.004.000101.600.2626.65PUPUPUPUPUPU
13.20—4.000101.600.33.8.38—P—PP—
16.10—4.000101.600.41510.54—P—PP—
18.90—4.000101.600.50012.70—P—PP—
22.20—4.000101.600.61015.49—P—PP—
4 1/2”12.6012.754.500114.300.2716.88PNUPNUPNUPNUPNU—
15.20—4.500114.300.3378.56—P—PP—
17.00—4.500114.300.3809.65—P—PP—
18.90—4.500114.300.4310.92—P—PP—
21.50—4.500114.300.50012.70—P—PP—
23.70—4.500114.300.56014.22—P—PP—
26.10—4.500114.300.63016.00—P—PP—
Non-Upset T﹠C-Non-upset threaded and coupled
Ex-Upset T﹠C-External upset threaded and coupled
P-Plain end
N-Non-upset threaded and coupled
U-External upset threaded and coupled

API 5CT Q125 Casing Features

  • API 5CT Q125 Casing is offered with a free length range from 8 to 13m on basis of the SY/T6194-96 norm. However, it is also available no less than 6m length and its quantity should be no more than 20%.

  • Any deformation such as crease, hairline, separation, crack or scab is not acceptable on both inner and outer surfaces of the product. All these defects should be completely removed, and the removed depth must not exceed 12.5% of nominal wall thickness.

  • Deformations which mentioned above are not allowed to appear on the outer surface of API 5CT Q125 Casing coupling.

  • The surface of thread of coupling and API 5CT Q125 Casing should be smooth without any burr, tear or other defects that may have a negative impact on the strength and close connection.

API 5CT Q125 Casing Packaging

API 5CT Q125 Casing