ASTM A672 B60/B70/C60/C65/C70 LSAW(JCOE) Cov Yeeb Nkab Hlau Carbon yogsiv rau hauv qhov xwm txheej siab thiab feem ntau siv rau hauv cov chaw tsim hluav taws xob, kev lag luam roj av hauv hiav txwv, kev lag luam tshuaj lom neeg, Chiv, petrochemicals, refineries thiab lwm yam.
ASTM A672 B60/B70/C60/C65/C70 LSAW(JCOE) Cov Yeeb Nkab Hlau Carbon yuav tsum yog ob chav-welded, tag nrho-nkag mus welds ua raws li cov txheej txheem thiab los ntawm cov welders lossis cov neeg ua haujlwm vuam tsim nyog raws li ASME Boiler thiab Pressure Vessel Code, Seem IX.
Txhua chav kawm uas tsis yog 10, 11, 12 thiab 13 yuav tsum tau kho cua sov hauv lub cub tawg uas tswj tau kom txog ±15 ℃ thiab nruab nrog lub ntsuas cua sov kom cov ntaub ntawv cua sov muaj.
Kev Tsim Khoom:Longitudinally Submerged Arc Vuam (LSAW).
Loj:OD: 406 ~ 1422mm WT: 8 ~ 60mm.
Qib:B60, C60, C65, thiab lwm yam.
Ntev:3-12M lossis teev ntev raws li xav tau.
Xaus:Xaus tiaj, Xaus Beveled, Grooved.
| Cov Kev Cai Tshuaj rau ASTM A672 B60 / B70 / C60 / C65 / C70 LSAW Carbon Steel Pipe | ||||||||||||
| Yeeb Nkab | Qib | Cov khoom xyaw,% | ||||||||||
| C siab tshaj plaws | Mn | P siab tshaj plaws | S siab tshaj plaws | Si | Lwm tus | |||||||
| <=1 nti (25 hli) | >1~2 nti (25 ~ 50 hli) | >2~4in(50-100mm) | >4~8 nti (100 ~ 200 hli) | >8 nti (200 hli) | <=1/2 nti (12.5 hli) | >1/2 nti (12.5 hli) | ||||||
| 60 | 0.24 | 0.21 | 0.29 | 0.31 | 0.31 | 0.98 siab tshaj | 0.035 | 0.035 | 0.13–0.45 | ... | ||
| 65 | 0.28 | 0.31 | 0.33 | 0.33 | 0.33 | 0.98 siab tshaj | 0.035 | 0.035 | 0.13–0.45 | ... | ||
| 70 | 0.31 | 0.33 | 0.35 | 0.35 | 0.35 | 1.30 siab tshaj | 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 | ... | |
| Cov Khoom Siv Kho Tshuab | |||||||
| Qib | |||||||
|
| B60 | B65 | B70 | C55 | C60 | C65 | C70 |
| Lub zog tensile, min: | |||||||
| ksi | 60 | 65 | 70 | 55 | 60 | 65 | 70 |
| Mpa | 415 | 450 | 485 | 380 | 415 | 450 | 485 |
| Lub zog tawm los, min: | |||||||
| ksi | 32 | 35 | 38 | 30 | 32 | 35 | 38 |
| MPa | 220 | 240 | 260 | 205 | 220 | 240 | 260 |
| Cov Kev Cai Ntev: Raws li tus qauv | |||||||
1. Txoj Kab Uas Siv Sab Nraud - Raws li kev ntsuas ncig ntawm ± 0.5% ntawm txoj kab uas siv sab nraud uas tau teev tseg.
2. Qhov Tsis Sib Npaug - Qhov sib txawv ntawm cov kab uas hla sab nraud loj thiab me.
3. Kev Sib Tho - Siv ib txoj kab ncaj 10 ft (3m) uas muab tso rau kom ob sab kawg sib chwv nrog lub yeeb nkab, 1/8 nti (3 hli).
4. Thickness-Qhov tsawg kawg nkaus phab ntsa tuab ntawm txhua qhov chaw hauv cov yeeb nkab yuav tsum tsis pub ntau tshaj 0.01 nti (0.3 hli) nyob rau hauv qhov teev tseg nominal thickness.
5. Qhov ntev uas tsis tau tshuab yuav tsum nyob hauv -0,+1/2 nti (-0,+13 hli) ntawm qhov tau teev tseg. Qhov ntev uas tau tshuab yuav tsum yog raws li tau pom zoo ntawm tus neeg tsim khoom thiab tus neeg yuav khoom.
Kev Ntsuas Kev Nruj - Cov khoom sib txuas ntawm cov vuam sib koom ua ke yuav tsum ua tau raws li qhov yuav tsum tau ua tsawg kawg nkaus rau lub zog tensile kawg ntawm cov khoom siv phaj teev tseg.
Kev ntsuam xyuas qhov khoov uas siv txoj hlua khi hla — Kev ntsuam xyuas qhov khoov yuav tsum tau txais yog tias tsis muaj qhov tawg lossis lwm yam tsis zoo uas tshaj 1/8 nti (3 hli) hauv txhua qhov kev taw qhia nyob rau hauv cov hlau txuas lossis ntawm qhov txuas thiab cov hlau hauv paus tom qab khoov.
Kev Tshuaj Xyuas Duab Xoo Hluav Taws Xob - Tag nrho qhov ntev ntawm txhua qhov vuam ntawm chav kawm X1 thiab X2 yuav tsum tau tshuaj xyuas duab xoo hluav taws xob raws li thiab ua tau raws li qhov yuav tsum tau ua ntawm ASME Boiler thiab Pressure Vessel Code, Ntu xya, nqe UW-51.
Cov yeeb nkab tiav lawm yuav tsum tsis muaj qhov tsis zoo thiab yuav tsum ua tiav zoo li tus neeg ua haujlwm.
A. Lub npe lossis lub cim ntawm lub chaw tsim khoom.
B. Tus lej qhia tshwj xeeb (hnub tim xyoo lossis xav tau).
C. Loj (OD, WT, ntev).
D. Qib (A lossis B).
E. Hom yeeb nkab (F, E, lossis S).
F. Kev sim siab (cov yeeb nkab hlau tsis muaj seamless xwb).
G. Tus lej cua sov.
H. Cov ntaub ntawv ntxiv uas tau teev tseg rau hauv daim ntawv xaj yuav khoom.
● Cov yeeb nkab liab qab los yog Dub / Varnish txheej / Epoxy txheej / 3PE txheej (raws li cov neeg siv khoom xav tau);
● 6" thiab qis dua ua ke nrog ob txoj hlua paj rwb;
● Ob qho kawg nrog cov tiv thaiv kawg;
● Qhov kawg tiaj tus, qhov kawg bevel (2" thiab siab dua nrog qhov kawg bevel, degree: 30 ~ 35 °), threaded thiab coupling;
● Kev cim.
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