ASTM A672 B60/B70/C60/C65/C70 LSAW(JCOE) Chitoliro cha Zitsulo cha Carbon ndiamagwiritsidwa ntchito pazovuta kwambiri ndipo amagwiritsidwa ntchito kwambiri m'mafakitale amagetsi, mafakitale amafuta akunyanja, makampani opanga mankhwala, feteleza, ma petrochemicals, zoyenga etc.
ASTM A672 B60/B70/C60/C65/C70 LSAW(JCOE) Carbon Steel Pipe idzakhala yowotcherera kawiri, yolowera monse motsatira ndondomeko ndi owotcherera kapena owotcherera oyenerera malinga ndi ASME Boiler ndi Pressure Vessel Code. , Gawo IX.
Makalasi onse kupatula 10, 11, 12 ndi 13 azitenthedwa mu ng'anjo yoyendetsedwa mpaka ± 15 ℃ ndikukhala ndi chojambulira chojambulira kuti zolemba zotentha zizipezeka.
Kupanga:Longitudinally Submerged Arc Welding (LSAW).
Kukula:OD: 406 ~ 1422mm WT: 8 ~ 60mm
Gulu:B60, C60, C65, etc.
Utali:3-12M kapena kutalika kwake komwe kumafunikira.
Kutha:Mapeto Oyera, Mapeto A Beveled, Grooved.
Zofunikira za Chemical za ASTM A672 B60/B70/C60/C65/C70 LSAW Chitoliro Chachitsulo cha Carbon | ||||||||||||
Chitoliro | Gulu | Kupanga,% | ||||||||||
C max | Mn | P max | S max | Si | Ena | |||||||
<=1 mu (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 | 0.98 kukula | 0.035 | 0.035 | 0.13–0.45 | ... | ||
65 | 0.28 | 0.31 | 0.33 | 0.33 | 0.33 | 0.98 kukula | 0.035 | 0.035 | 0.13–0.45 | ... | ||
70 | 0.31 | 0.33 | 0.35 | 0.35 | 0.35 | 1.30 max | 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 | |||||||
Gulu | |||||||
| B60 | B65 | B70 | C55 | C60 | C65 | C70 |
Mphamvu yolimba, min: | |||||||
ksi | 60 | 65 | 70 | 55 | 60 | 65 | 70 |
Mpa | 415 | 450 | 485 | 380 | 415 | 450 | 485 |
Mphamvu zokolola, min: | |||||||
ksi | 32 | 35 | 38 | 30 | 32 | 35 | 38 |
MPa | 220 | 240 | 260 | 205 | 220 | 240 | 260 |
Zofunikira za Elongation: Malinga ndi muyezo |
1. Diameter ya Kunja-Kutengera muyeso wozungulira ± 0.5% wa m'mimba mwake womwe watchulidwa.
2. Out-of-Roundness-Kusiyana pakati pa zazikulu ndi zazing'ono zakunja diameters.
3. Kuyanjanitsa-Kugwiritsa 10 ft (3m) kuwongola anaika kuti malekezero onse kukhudzana ndi chitoliro, 1/8 mu. (3mm).
4. Makulidwe - Makulidwe ochepa a khoma nthawi iliyonse mu chitoliro sichiyenera kupitirira 0.01 in. (0.3mm) pansi pa makulidwe otchulidwa mwadzina.
5. Utali wokhala ndi malekezero opanda makina uzikhala mkati mwa -0+1/2 mkati. (-0+13mm) kuchokera pamenepo.Kutalika kokhala ndi malekezero opangidwa ndi makina kudzakhala monga momwe adagwirizana pakati pa wopanga ndi wogula.
Kuyesa Kwamphamvu-Zomwe zimasunthika zolumikizirana zowotcherera zimakwaniritsa zofunikira kuti pakhale mphamvu yolimba yazinthu zomwe zatchulidwa.
Mayeso opindika-wowongolera-wokhotakhota -Mayeso opindika adzakhala ovomerezeka ngati palibe ming'alu kapena zolakwika zina zopitirira 1/8 mkati (3mm) kumbali iliyonse zilipo muzitsulo zowotcherera kapena pakati pa zitsulo zowotcherera ndi zitsulo zoyambira pambuyo popindika.
Mayeso a Radio-graphic-Utali wonse wa weld iliyonse ya kalasi X1 ndi X2 udzawunikidwa mozama motsatira ndikukwaniritsa zofunikira za ASME Boiler and Pressure Vessel Code, Gawo lachisanu ndi chiwiri, ndime UW-51.
Chitoliro chomalizidwacho chizikhala chopanda zilema ndipo chizikhala chomaliza ngati wantchito.
A. Dzina kapena chizindikiro cha wopanga.
B. Nambala yodziwika (tsiku la chaka kapena lofunikira).
C. Kukula (OD, WT, kutalika).
D. Gulu (A kapena B).
E. Mtundu wa chitoliro(F, E, kapena S).
F. Kuthamanga kwa mayeso (chitoliro chopanda chitsulo chokha).
G. Nambala ya Kutentha.
H. Zambiri zowonjezera zomwe zafotokozedwa muzogula.
● Chitoliro chopanda kanthu kapena Chophimba Chakuda / Varnish / Epoxy / 3PE zokutira (molingana ndi zofuna za kasitomala);
● 6 "ndi pansi m'mitolo ya thonje ziwiri;
● Zonse zimathera ndi otetezera mapeto;
● Mapeto osavuta, malekezero a bevel (2"ndi pamwamba pa bevel, digiri: 30 ~ 35 °), ulusi ndi kugwirizana;
● Kulemba chizindikiro.
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