Qib:GRA, GRB, X42, X46, X52, X56, X60, X65, X70
Qhov ntau thiab tsawg:
Outer Diameter: 1/2 "mus rau 2", 3", 4", 6", 8", 10", 12"
Thickness Teem caij: SCH 10, SCH20, SCH40, SCH STD, SCH80
Product Specification Level (PSL):
- PSL1: Cov kev cai yooj yim rau cov ntawv thov txheej txheem.
- Qhov txawv tseem ceeb ntawm PSL2:
- Kev tswj cov tshuaj muaj pes tsawg leeg tsawg dua.
- Tsis tas yuav tsum tau Charpy V- ntsuas qhov cuam tshuam (xaiv tau tshwj tsis yog tau teev tseg).
- Tsawg siab tshaj carbon sib npaug (CE) txwv rau weldability.
- Tso cai rau qhov dav dav, tsis yog - qhov chaw pabcuam qaub.
Cov txheej txheem tsim khoom:
- Seamless: Kub- dov los yog txias - kos.
- Welde: Hluav taws xob Resistance Welded (ERW) lossis Submerged Arc Welded (SAW).
Kev Xeem Xeem (PSL1):
- Hydrostatic Testing: Yuav tsum tau (kuaj siab raws li phab ntsa thickness thiab txoj kab uas hla).
- Tsis yog-Kev Ntsuam Xyuas Kev Puas Tsuaj (NDT): Yuav tsum muaj rau cov hlua khi hauv cov kav dej welded.
- Kev Xeem Xaiv: Kev sim cuam tshuam, qhov nyuaj, lossis kev sim khoov (yog tias tus neeg yuav khoom tau teev tseg).
Daim ntawv thov:
- Onshore roj/gas xa mus kav.
- Cov kab hauv dej.
- Tsawg-siab sib sau tshuab.
- Kev siv cov qauv (piv txwv li, piling).
Cov ntsiab lus tseem ceeb:
- Ib puag ncig: Tsis haum rau kev pabcuam qaub (H₂S ib puag ncig) tshwj tsis yog cov kev xav tau ntxiv (xws li NACE MR0175) tau ua tiav.
- Vuam: Ua raws li API 1104 tus qauv; preheat tej zaum yuav xav tau vim CE.
- Kev tiv thaiv corrosion: Txheej txheej (xws li FBE, 3LPE) lossis cathodic tiv thaiv feem ntau yuav tsum tau.
Chemical Composition & Mechanical Property:
|
Txuj |
Qib |
Chemical Composition (%) |
Tensile zog (min) |
Yield zog (min) |
|||
|
C Mn PS |
Mpa |
Mpa |
|||||
|
API 5L PSL1 (SMLS) |
A |
0.22 |
0.90 |
0.030 |
0.030 |
335 |
210 |
|
B |
0.28 |
1.20 |
0.030 |
0.030 |
415 |
245 |
|
|
X42 |
0.28 |
1.30 |
0.030 |
0.030 |
415 |
290 |
|
|
X46 |
0.28 |
1.40 |
0.030 |
0.030 |
435 |
320 |
|
|
X52 |
0.28 |
1. 40 |
0.030 |
0.030 |
460 |
360 |
|
|
X56 |
0.28 |
1.40 |
0.030 |
0.030 |
490 |
390 |
|
|
X60 |
0.28 |
1.40 |
0.030 |
0.030 |
520 |
415 |
|
|
X65 |
0.28 |
1.40 |
0.030 |
0.030 |
535 |
450 |
|
|
X70 |
0.28 |
1.40 |
0.030 |
0.030 |
570 |
485 |
|
|
Txuj |
Qib |
Chemical Composition (%) |
Tensile zog |
Yield zog |
|||
|
C Mn PS |
Mpa |
Mpa |
|||||
|
API 5L PSL2 (SMLS) |
B |
0.24 |
1.20 |
0.025 |
0.015 |
415-655 |
245-450 |
|
X42 |
0.24 |
1.30 |
0.025 |
0.015 |
415-655 |
290-495 |
|
|
X46 |
0.24 |
1.40 |
0.025 |
0.015 |
435-655 |
320-525 |
|
|
X52 |
0.24 |
1. 40 |
0.025 |
0.015 |
460-760 |
360-530 |
|
|
X56 |
0.24 |
1. 40 |
0.025 |
0.015 |
490-760 |
390-545 |
|
|
X60 |
0.24 |
1. 40 |
0.025 |
0.015 |
520-760 |
415-565 |
|
|
X65 |
0.24 |
1.40 |
0.025 |
0.015 |
535-760 |
450-600 |
|
|
X70 |
0.24 |
1.40 |
0.025 |
0.015 |
570-760 |
485-635 |
|
|
X80 |
0.24 |
1. 40 |
0.025 |
0.015 |
625-825 |
555-705 |
|
|
|
Chav kawm |
Qib |
Tshuaj ntsuam xyuas (%) |
Mechanical Prop |
||||
|
C |
Mn |
P |
S |
Tensile zog (Mpa) |
Yield zog (Mpa) |
|||
|
API 5L (ERW) |
PSL1 |
B |
0.26 |
1.20 |
0.030 |
0.030 |
Ntau dua lossis sib npaug rau 415 |
Ntau dua lossis sib npaug li 245 |
|
X42 |
0.26 |
1.30 |
0.030 |
0.030 |
Ntau dua lossis sib npaug rau 415 |
Ntau dua lossis sib npaug li 290 |
||
|
X46 |
0.26 |
1.40 |
0.030 |
0.030 |
Ntau dua lossis sib npaug li 435 |
Ntau dua lossis sib npaug rau 320 |
||
|
X52 |
0.26 |
1.40 |
0.030 |
0.030 |
Ntau dua lossis sib npaug rau 460 |
Ntau dua lossis sib npaug rau 360 |
||
|
X56 |
0.26 |
1.40 |
0.030 |
0.030 |
Ntau dua lossis sib npaug li 490 |
Ntau dua lossis sib npaug rau 390 |
||
|
X60 |
0.26 |
1.40 |
0.030 |
0.030 |
Ntau dua lossis sib npaug li 520 |
Ntau dua lossis sib npaug rau 415 |
||
|
X65 |
0.26 |
1.45 |
0.030 |
0.030 |
Ntau dua lossis sib npaug li 535 |
Ntau dua lossis sib npaug li 450 |
||
|
X70 |
0.26 |
1.65 |
0.030 |
0.030 |
Ntau dua lossis sib npaug li 570 |
Ntau dua lossis sib npaug rau 485 |
||
|
PSL2 |
B |
0.22 |
1.20 |
0.025 |
0.015 |
415-655 |
245-450 |
|
|
X42 |
0.22 |
1.30 |
0.025 |
0.015 |
415-655 |
290-495 |
||
|
X46 |
0.22 |
1.40 |
0.025 |
0.015 |
435-655 |
320-525 |
||
|
X52 |
0.22 |
1.40 |
0.025 |
0.015 |
460-760 |
360-530 |
||
|
X56 |
0.22 |
1.40 |
0.025 |
0.015 |
490-760 |
390-545 |
||
|
X60 |
0.22 |
1.40 |
0.025 |
0.015 |
520-760 |
415-565 |
||
|
X65 |
0.22 |
1.45 |
0.025 |
0.015 |
535-760 |
450-600 |
||
|
X70 |
0.22 |
1.65 |
0.025 |
0.015 |
570-760 |
485-635 |
||
|
X80 |
0.22 |
1.85 |
0.025 |
0.015 |
625-825 |
555-705 |
||
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