Qhov sib txawv ntawm X60 thiab X65 kav dej feem ntau yog tshwm sim hauv cov hauv qab no:
Mechanical zog
Yield zog: Qhov tsawg kawg nkaus yield zog ntawm X60 yeeb nkab yog 415MPa, thaum qhov tsawg kawg nkaus yield zog ntawm X65 yeeb nkab yog 450MPa. Lub zog ntau dua ntawm X65 txhais tau hais tias nws tuaj yeem tiv taus ntau dua sab nraud yam tsis muaj cov yas deformation.
Lub zog tensile: Qhov tsawg kawg nkaus tensile lub zog ntawm X60 yeeb nkab yog 520MPa, thaum lub zog tensile yam tsawg kawg nkaus ntawm X65 yeeb nkab yog 535MPa. Lub zog tensile ntawm X65 kuj tseem siab dua, ua rau nws tsis tshua muaj kev tawg thaum raug kev kub ntxhov.
Tshuaj muaj pes tsawg leeg
Cov ntsiab lus carbon : Ob leeg X60 thiab X65 muaj cov ntsiab lus carbon tsawg, feem ntau ntawm 0.05% thiab 0.3% 1.
Lwm cov ntsiab lus: Ob leeg muaj cov ntsiab lus me me xws li manganese, silicon, phosphorus, thiab sulfur, tab sis cov ntsiab lus tshwj xeeb txawv. Piv txwv li, X65 muaj ntau dua manganese cov ntsiab lus kom nws lub zog.
Daim ntawv thov Scenario
X60 cov kav dej: feem ntau yog siv rau hauv cov kav dej dav hlau thiab roj av, kev siv cov txheej txheem, thiab cov khoom siv hauv kev lag luam roj thiab roj hauv av thiab sab nrauv, tsim nyog rau lub sijhawm uas lub siab thiab ib puag ncig yuav tsum tsis txhob hnyav heev.
X65 cov kav dej: feem ntau yog siv rau cov kav dej kub thiab kub kub, tshwj xeeb tshaj yog nyob rau qee qhov kev xav tau, xws li roj thiab roj cov dej num hauv hiav txwv tob thiab Arctic. Vim nws lub zog siab thiab zoo corrosion kuj, nws tuaj yeem ua kom muaj kev nyab xeeb ntawm cov kav dej nyob rau hauv cov xwm txheej hnyav.
Weldability:
Ob leeg X60 thiab X65 kav dej muaj qhov zoo weldability, tab sis X65 yuav xav tau cov txheej txheem vuam ntau dua thiab tsim nyog welders vim nws lub zog ntau dua thiab muaj peev xwm sib txawv ntawm cov tshuaj.
API 5L X60 Seamless Line Pipes Cov Khoom Siv Tshuaj
| Pawg feem ntau, raws li kev ntsuas kub thiab cov khoom lag luam a | |||||||
| C | Mn | P | S | V | Nb | Ti | |
| maxb ua | max.b | min. | max. | max. | max. | max. | max. |
| 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
API 5L X60 carbon steel kab yeeb nkab txhua yam khoom
| Y.S | T.S | ELONGATION |
| Mpa (psi) | Mpa (psi) | |
| min | min | min |
| 415(60 200) | 520(75 400) | c |
API 5L X65 Hlau Yeeb Nkab Khoom Khoom
|
Qib |
Tshuaj muaj pes tsawg leeg |
|||||||
|
|
C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
|
API 5L X65 |
0.16 |
0.45 |
1.65 |
0.020 |
0.010 |
0.09 |
0.05 |
0.06 |
API X65 Pipe mechanical zog
|
Qib |
Yield zog |
Tensile zog |
Yield rau Tensile |
Elongation |
|
|
min. (KSI) |
min. (KSI) |
Qhov ratio (max) |
% |
|
API 5L X65 |
65 |
77 |
0.93 |
18 |
