Selling Leads: Seamless pipe
| Post Date | Nov 28, 2007 |
| Validity Date | Nov 28, 2019 |
| Business Category | Chemicals » Petroleum & Products » Others |
| Country/Region | China [CN] |
| Company Address | Room A0502-B , Huajing Business Building ,No. 20 Fenghui South Road ,Hi-tech Zone,Xi'an ,China . |
» RecommendDescription
Seamless Pipes for Oil Casings and Tubes
Standard：
API SPEC 5CT Standard of American Petroleum Institute
Steel Grade :
J55, K55, N80, L80, P110 etc
Diamensional tolerances:
|
Types of steel tubes |
Outer diameter |
Wall thickness |
|
|
Cold-rolled tubes |
Tube sizes(mm) |
Tolerances(mm) |
Tolerances(mm) |
|
＜114.3 |
±0.79 |
－12.5％ |
|
|
≥114.3 |
－0.5％，＋1％ |
||
Mechanical properties：
|
Standard codes |
Models of steel tubes |
Tensite strength（MPa） |
Yield strength（MPa） |
Elongation（％） |
Hardness |
|
API SPEC 5CT |
J55 |
≥517 |
379～552 |
check the table |
|
|
K55 |
≥517 |
≥655 |
|
||
|
N80 |
≥689 |
552～758 |
|
||
|
L80(13Cr) |
≥655 |
552～655 |
≤241HB |
||
|
P110 |
≥862 |
758～965 |
|
Chemical Composition :
|
Standard codes |
Models of steel tubes |
Chemical compositions（％） |
|||||||||||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
Mo |
V |
Als |
|||||||||
|
API SPEC 5CT |
J55K55(37Mn5) |
0.34～0.39 |
0.20～0.35 |
1.25～1.50 |
≤0.020 |
≤0.015 |
≤0.15 |
≤0.20 |
≤0.20 |
|
|
≤0.020 |
|||||||
|
N80(36 Mn2V) |
0.34～0.38 |
0.20～0.35 |
1.45～1.70 |
≤0.020 |
≤0.015 |
≤0.15 |
|
|
|
0.11～0.16 |
≤0.020 |
||||||||
|
L80(13Cr) |
0.15～0.22 |
≤1.00 |
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