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API Tubing

Application: Used for the Transmission of Oil & Gas

Specification: OD: 40.26mm ~ 114.3mm

                          WT: 3.18mm ~ 16mm

                          LENGTH: R1, R2, R3

Standard & Grade: API 5CT J55/K55/N80/C75/L80/C90/T95/Q125

Process Type: Seamless (SMLS), Electric Resistance Welded (ERW)

End: Beveled, Square Cut, With NUE/EUE Connection

Surface: Anti-corrosion Water Based Paint

Packing: Protection Caps in both End, Waterproof Paper Wrapped, Two Tags

               

Tolerance

Pipe Types
Pipe Size (mm)
Tolerances
Hot Rolled
OD ≤159
±1.0%
>159
±1.20%
WT ≤20
±12.5%
>20
±10.0%
Cold Drawn
OD ≤30
±0.20mm
30-50
±0.30mm
>50
±0.8%
WT ≤3
+12%  -10%
>3
±10%

Chemical Composition & Mechanical Properties

Grade Chemical Composition
Mechanical Properties
C
Mn
Si
Cr
Mo
Ni
S P Tensile Strength(Mpa)
Yield Strength(Mpa)
Elongation(%)
10
0.07-0.14
0.35-0.65
0.17-0.37
≤0.15
- ≤0.25
≤0.035
≤0.035
330-490
≥205
≥24
20 0.17-0.24
0.35-0.65
0.17-0.37
≤0.25
- ≤0.25
≤0.035
≤0.035
410-550
≥245
≥21
12CrMo
0.08-0.15
0.40-0.70
0.17-0.37
0.40-0.70
0.40-0.55
≤0.30
≤0.035
≤0.035
410-560
≥205
≥21
15CrMo
0.12-0.18
0.40-0.70
0.17-0.37
0.80-1.10
0.40-0.55
≤0.30
≤0.035
≤0.035
440-640
≥235
≥21
1Cr2Mo
≤0.15
0.30-0.60
0.50-1.00
2.15-2.85
0.40-0.65
- ≤0.035
≤0.035
≥390
≥175
≥22
1Cr5Mo
≤0.15
≤0.60
≤0.60
4.00-6.00
0.45-0.60
≤0.60
≤0.035
≤0.035
≥390
≥195
≥22