ASTM A672 B60/B70/C60/C65/C70 LSAW(JCOE) Carbon Steel Pipe iriInoshandiswa mukudzvinyirira kwakanyanya uye inonyanya kushandiswa musimba remagetsi, indasitiri yemafuta ekumahombekombe, indasitiri yemakemikari, Fertilizer, petrochemicals, refineries nezvimwe.
ASTM A672 B60/B70/C60/C65/C70LSAW(JCOE) Carbon Steel Pipeichave yakapetwa kaviri-welds, yakazara-yekupinda welds yakagadzirwa zvinoenderana nemaitiro uye nevelders kana welding vanoshanda vanokwanisa zvinoenderana neASME Boiler uye kumanikidza Vessel Code, Chikamu IX.
Makirasi ese kunze kwe10, 11, 12 uye 13 achange achipiswa muchoto anodzorwa kusvika ± 15 ℃ uye akashongedzerwa nerekodha hydrometer kuitira kuti marekodhi ekudziya avepo.
Kugadzira:Longitudinally Submerged Arc Welding (LSAW).
SaiziOD: 406~1422mm WT: 8~60mm.
Giredhi:B60, C60, C65, nezvimwewo.
Urefu:3-12M kana kureba yakatarwa sezvinodiwa.
Inopera:Plain End, Beveled End, Grooved.
Kemikari Zvinodiwa zveASTM A672 B60/B70/C60/C65/C70 LSAW Carbon Steel Pipe | ||||||||||||
Pipe | Giredhi | Kuumbwa,% | ||||||||||
C max | Mn | P max | S max | Si | Vamwe | |||||||
<=1in (25mm) | >1~2in (25~50mm) | >2~4in(50-100mm) | >4~8in (100~200mm) | >8in (200mm) | <=1/2in (12.5mm) | >1/2in (12.5mm) | ||||||
60 | 0.24 | 0.21 | 0.29 | 0.31 | 0.31 | 0.98max | 0.035 | 0.035 | 0.13–0.45 | ... | ||
65 | 0.28 | 0.31 | 0.33 | 0.33 | 0.33 | 0.98max | 0.035 | 0.035 | 0.13–0.45 | ... | ||
70 | 0.31 | 0.33 | 0.35 | 0.35 | 0.35 | 1.30max | 0.035 | 0.035 | 0.13–0.45 | ... | ||
C | 55 | 0.18 | 0.20 | 0.22 | 0.24 | 0.26 | 0.55–0.98 | 0.55–1.30 | 0.035 | 0.035 | 0.13–0.45 | ... |
60 | 0.21 | 0.23 | 0.25 | 0.27 | 0.27 | 0.55–0.98 | 0.79–1.30 | 0.035 | 0.035 | 0.13–0.45 | ... | |
65 | 0.24 | 0.26 | 0.28 | 0.29 | 0.29 | 0.79–1.30 | 0.79–1.30 | 0.035 | 0.035 | 0.13–0.45 | ... | |
70 | 0.27 | 0.28 | 0.30 | 0.31 | 0.31 | 0.79–1.30 | 0.79–1.30 | 0.035 | 0.035 | 0.13–0.45 | ... |
Mechanical Properties | |||||||
Giredhi | |||||||
| B60 | B65 | B70 | C55 | C60 | C65 | C70 |
Kusimba simba, min: | |||||||
ksi | 60 | 65 | 70 | 55 | 60 | 65 | 70 |
Mpa | 415 | 450 | 485 | 380 | 415 | 450 | 485 |
Goho simba, min: | |||||||
ksi | 32 | 35 | 38 | 30 | 32 | 35 | 38 |
MPa | 220 | 240 | 260 | 205 | 220 | 240 | 260 |
Elongation Zvinodiwa: Sezviyero |
1. Kunze Diameter-Kubva pachiyero che circumferential ± 0.5% yedhayamita yekunze yakataurwa.
2. Kunze-kwe-Roundness-Musiyano pakati pemadhayamita makuru uye maduku kunze.
3. Kurongeka-Kushandisa 10 ft (3m) kutwasanuka kwakaiswa kuitira kuti migumo yose inosangana nepombi, 1/8 mukati. (3mm).
4. Hukobvu-Ukobvu hwemadziro hushoma pane ipi neipi mupombi haifaniri kudarika 0.01 mukati (0.3mm) pasi pehukobvu hunotsanangurwa.
5. Hurefu hune magumo asina kugadzirwa huchava mukati -0+1/2 mukati. (-0+13mm) pane zvakatsanangurwa.Hurefu hune magumo emuchina huchave sekubvumirana pakati pemugadziri nemutengi.
Tension Test-Transverse tensile zvivakwa zvejoint yakasungwa zvinosangana nezvinodiwa zvishoma zvekusimba kwekusimba kweiyo yakatsanangurwa ndiro zvinhu.
Transverse-guided-weld-bent tests —Muedzo wekubhenda uchagamuchirwa kana pasina makatsemuka kana zvimwe zvirema zvinodarika 1/8 in.
Radio-graphic Examination-Kureba kwakazara kweyega yega weld yekirasi X1 uye X2 ichaongororwa radiographic zvichiteerana nekuzadzisa zvinodiwa zveASME Boiler uye Pressure Vessel Code, Chikamu chechinomwe, ndima UW-51.
Iyo pombi yakapedzwa haifaniri kuva nezvinokuvadza uye ichava nekupedzisa semushandi.
A. Zita kana chiratidzo chemugadziri.
B. Nhamba yetsanangudzo(gore-zuva kana zvinodiwa).
C. Size( OD, WT, kureba).
D. Giredhi(A kana B).
E. Rudzi rwepombi( F, E, kana S).
F. Test pressure( seamless simbi pombi chete).
G. Heat Number.
H. Chero ruzivo rwekuwedzera rwakatsanangurwa muhurongwa hwekutenga.
● Pombi isina chinhu kana Dema / Varnish coating / Epoxy coating / 3PE coating (maererano nezvinodiwa nemutengi);
● 6"uye pasi pamasumbu ane zvipfuramabwe zviviri;
● Zvose zvinopera nevadziviriri vekupedzisira;
● Magumo akajeka, bevel end (2"uye pamusoro ane bevel ends, degree: 30 ~ 35 °), threaded uye coupling;
● Kumaka.