Api 5l Kab Pipes Qib B rau X70 Od Ntawm 219mm txog 3500mm
Mechanical Properties ntawm SSAW yeeb nkab
| qib steel | yam tsawg kawg nkaus yield zog | Tsawg kawg Tensile zog | Tsawg kawg Elongation |
| B | 245 | 415 | 23 |
| X42 | 290 | 415 | 23 |
| X46 | 320 | 4 35 | 22 |
| X52 | 360 | 460 | 21 |
| X56 | 390 | 490 ib | 19 |
| X 60 | 415 | 520 | 18 |
| X 65 | 450 | 535 ib | 18 |
| X 70 | 485 ib | 570 ib | 17 |
Chemical composition ntawm SSAW kav
| qib steel | C | Mn | P | S | V+Nb+Ti |
| Max % | Max % | Max % | Max % | Max % | |
| B | 0.26 | 1.2 | 0.03 ib | 0.03 ib | 0.15 |
| X42 | 0.26 | 1.3 | 0.03 ib | 0.03 ib | 0.15 |
| X46 | 0.26 | 1.4 | 0.03 ib | 0.03 ib | 0.15 |
| X52 | 0.26 | 1.4 | 0.03 ib | 0.03 ib | 0.15 |
| X56 | 0.26 | 1.4 | 0.03 ib | 0.03 ib | 0.15 |
| X 60 | 0.26 | 1.4 | 0.03 ib | 0.03 ib | 0.15 |
| X 65 | 0.26 | 1.45 Nws | 0.03 ib | 0.03 ib | 0.15 |
| X 70 | 0.26 | 1.65 ib | 0.03 ib | 0.03 ib | 0.15 |
Geometric kam rau ua ntawm SSAW kav
| Geometric kam rau ua | ||||||||||
| sab nraud txoj kab uas hla | Phab ntsa thickness | kev ncaj | out-of-roundness | pawg | Qhov siab tshaj plaws weld hlaws | |||||
| D | T | |||||||||
| ≤1422mm | * 1422mm | ± 15mm | ≥15mm | cev 1.5m | tag nrho ntev | cev cev | cev end | T ≤ 13 hli | T> 13 mm | |
| ± 0.5% | raws li pom zoo | ± 10% | ± 1.5 hli | 3.2mm ib | 0.2% yog ' | 0.020d ua | 0.015d ua | '+ 10% | 3.5mm ib | 4.8mm ib |
Hydrostatic Test
Cov yeeb nkab yuav tsum tiv taus qhov kev sim hydrostatic yam tsis muaj qhov xau los ntawm cov vuam seam lossis lub cev yeeb nkab
Jointers yuav tsum tsis txhob sim hydrostatically, yog hais tias cov feem ntawm cov yeeb nkab siv nyob rau hauv kos cov jointers tau ua tiav hydrostatically kuaj ua ntej kev koom tes ua hauj lwm.
Traceability:
Rau PSL 1 yeeb nkab, cov chaw tsim khoom yuav tsum tsim thiab ua raws li cov txheej txheem khaws cia:
Kev ntsuas kub kom txog thaum txhua qhov kev kuaj chmical cuam tshuam tau ua tiav thiab ua raws li cov cai teev tseg
Lub xeem-unit yog leej twg mus txog rau thaum txhua qhov kev ntsuam xyuas kev siv tshuab raug ua tiav thiab ua raws li cov cai teev tseg
Rau PSL 2 yeeb nkab, cov chaw tsim khoom yuav tsum tsim thiab ua raws li cov txheej txheem sau tseg rau kev tswj xyuas qhov kub thiab txias thiab qhov chaw kuaj tus kheej rau cov yeeb nkab.Cov txheej txheem zoo li no yuav tsum muab txoj hauv kev rau kev taug qab txhua qhov ntev ntawm cov yeeb nkab mus rau chav kuaj kom zoo thiab cov txiaj ntsig tshuaj ntsuam xyuas.
