Specifications: diameter: 320 to 127 mm thickness: 0.4 to 12.7 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe

tubing and casing API SPEC 5CT API SPEC 5B parameters mechan


tubing and casing (API SPEC 5CT API SPEC 5B) parameters and mechanical properties

The parameters and mechanical properties of the the tubing and casing (APISPEC5CTAPISPEC5B)

Size deviation
Project Allowable deviation
Outer diameter Tube D, ≤ 101.60mm ± 0.79mm
D ≥ 114.30mm +1.0%
-0.5%
Coupling ± 1%
Wall thickness -12.5%
Weight Single +6.5%
+3.5%
Vehicle the amount of -1.75

 

Thread parameter tolerances
Varieties and specifications Taper Pitch Tooth height Thread angle Thread length Tube End Finishing Standoff
Per inch Accumulative Pipe thread Coupling thread
Round thread tubing 2 3/8 "-51 / 2" 10 teeth / in +5.208 -2.600 ± 0.076 ± 0.152 +0.051 -0.102 ± 1 2/2 ± 1 1/2P +5 -0 ± 1 1/2P ± 1 1/2P
8 teeth / in +5.208 -2.600 ± 0.076 ± 0.152 +0.051 -0.102 ± 1 2/2 ± 1P +5 -0 ± 1P ± 1P
Round Thread Casing 4 1/2 "-41 / 2" +5.208 -2.600 ± 0.076 ± 0.152 +0.051 -0.102 ± 1 2/2 ± 1P +5 -0 ± 1P ± 1PP
Buttress thread casing Coupling +4.50 -2.50 ± 0.051 ± 0.102 ± 0.025 - - +5 -0 +1 1/2P -0 +0 -1 1/2P

 

 

Tube

The complete thread +3.50 -1.50
Incomplete thread +4.50 -1.50

 

Chemical composition

Steel grade C Mn Mo Cr Ni Cu P S Si
min max min max min max min max
J-55                          
K-55                          
N-80                          
L-80-1                          
C-90-1                          
C-90-2                          
C-95                          
T-95-1                          
T-95-2                          
P-110                          
M-65                          
80 SS                          
BG80T                          
BG110T                          

 

Mechanical properties

Gang-class Yield strength (MPa) Tensile strength (MPa) Elongation
Lowest Lowest Lowest Lowest
Psi Mpa Psi Mpa Psi Mpa HRC BHN
J-55 55000 379 80000 552 75000 517 - -
K-55 55000 379 80000 552 95000 655 - -
N-80 80000 552 11000 758 100000 689 - -
L-80-1 80000 552 95000 655 95000 655 23 241
C-90 90000 621 105 000 724 100000 689 25.4 255
C-95 95000 655 110 000 758 105 000 724 - -
T-95 95000 655 110 000 758 125 000 724 25.4 255
P-110 110 000 758 140 000 965 100000 862 - -
M-65 65000 448 85000 586 100000 689 22 235
80 SS 83000 570 99000 680 100000 689 23 241
BG80T 80000 552 110 000 758 100000 689 - -
BG110T 110 000 758 140 000 965 125 000 862 - -

 

Length
Project Range 1 Range 2 Scope 3
Tubing 6.10-7.32m 8.53-9.75m -
Casing 4.88-7.62m 7.62-10.36m 10.36-14.63m

tubing and casing API SPEC 5CT API SPEC 5B

Heng letter Pipe implementation of standards: 10 #, 20 #, 35 #, 45 #, 20G, GB5310-95, St45.8-Ⅲ, GB/T8162-1999, GB/T8163-1999, GB3087-1999, GB9948 -88, GB6479-86, GB5312-99, GB/T9711.1-97, 16Mn steel pipe, 27simn, 15crmo, 15CrMoG.35crmo, cr5mo, 40cr, 10CrMo910, 12Cr1MoVG, A335P22, D240, D250, L245, L290, L320, L360, L390, N80, 15mnv, A335p91. and so on.

Stainless steel seamless tube material: 0Crl8Ni9, 1Crl8Ni9Ti, 00Crl7Nil4M02 0Crl7Ni12Mo2N, 00Crl9Ni1O 0Crl8Nil2M02Ti, 0Cr25Ni20 OOCrl9Nil3M03, etc.; the United States Material: 301, 302, 304, 304L, 305,316, 316L, 316Ti, 317, 317L, 310S , 321, C321, 347.

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