ʻO ka ASTM A672 B60/B70/C60/C65/C70 LSAW(JCOE) ʻO ka paipu hao haohoʻohana ʻia i ke kūlana kiʻekiʻe a hoʻohana nui ʻia i ka mea kanu mana, ʻoihana ʻaila waho, ʻoihana kemika, Fertilizer, petrochemicals, refineries etc.
ASTM A672 B60/B70/C60/C65/C70LSAW(JCOE) Paipu kila Carbone palua-welded, piha-penetration welds i hanaia e like me na kaʻina hana a me nā welders a me nā mea hana kuʻihao i kūpono e like me ka ASME Boiler and Press Vessel Code, Section IX.
ʻO nā papa ʻē aʻe ma mua o 10, 11, 12 a me 13 e mālama ʻia i ka wela i loko o ka umu i hoʻomalu ʻia i ± 15 ℃ a hoʻolako ʻia me kahi hydrometer hoʻopaʻa i hiki ke loaʻa nā moʻolelo hoʻomehana.
Hana ʻia:Hoʻopaʻa ʻia ʻo Longitudinally Submerged Arc Welding (LSAW).
Nui:OD: 406～1422mm WT: 8~60mm.
Papa:B60, C60, C65, etc.
Ka lōʻihi:3-12M a i ʻole ka lōʻihi i ʻōlelo ʻia e like me ka makemake.
Pau:Hope Plain, Hope Beveled, Grooved.
| Koi Kemika no ASTM A672 B60/B70/C60/C65/C70 LSAW Carbon Steel Pipe | ||||||||||||
| Paipu | Papa | Huina, % | ||||||||||
| C max | Mn | P max | S max | Si | ʻO nā mea ʻē aʻe | |||||||
| <=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 | 0.98 ka nui | 0.035 | 0.035 | 0.13–0.45 | ... | ||
| 65 | 0.28 | 0.31 | 0.33 | 0.33 | 0.33 | 0.98 ka nui | 0.035 | 0.035 | 0.13–0.45 | ... | ||
| 70 | 0.31 | 0.33 | 0.35 | 0.35 | 0.35 | 1.30 ka nui | 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 | ... | |
| Na Waiwai Mechanical | |||||||
| Papa | |||||||
|
| B60 | B65 | B70 | C55 | C60 | C65 | C70 |
| Ka ikaika tensile, min: | |||||||
| ksi | 60 | 65 | 70 | 55 | 60 | 65 | 70 |
| Mpa | 415 | 450 | 485 | 380 | 415 | 450 | 485 |
| Ka ikaika hana, min: | |||||||
| ksi | 32 | 35 | 38 | 30 | 32 | 35 | 38 |
| MPa | 220 | 240 | 260 | 205 | 220 | 240 | 260 |
| Nā Koina Elongation: E like me ke kūlana | |||||||
1. Mawaho Anawaena-Ma muli o ke ana ana puni ± 0.5% o ka anawaena waho i hoakakaia.
2. Out-of-Roundness-Okoa ma waena o ka nui a me ka liʻiliʻi o waho anawaena.
3. Alignment-Me ka hoʻohana ʻana i kahi ʻaoʻao pololei 10 ft (3m) i hoʻopili ʻia nā welau ʻelua me ka paipu, 1/8 iniha (3mm).
4. Mānoanoa-ʻO ka mānoanoa liʻiliʻi o ka paia ma kēlā me kēia wahi o ka paipu ʻaʻole e ʻoi aku ma mua o 0.01 iniha (0.3mm) ma lalo o ka mānoanoa i koho ʻia.
5. ʻO nā lōʻihi me nā wēlau paʻa ʻole i loko o -0+1/2 iniha (-0+13mm) o ka mea i kuhikuhi ʻia.ʻO nā lōʻihi me nā hopena mīkini e like me ka ʻaelike ma waena o ka mea hana a me ka mea kūʻai aku.
ʻO ka hoʻāʻo ʻana ʻo Tension—E hoʻokō nā waiwai tensile transverse o ka hui welded i nā koi liʻiliʻi no ka ikaika tensile hope loa o ka mea pā i kuhikuhi ʻia.
Nā hoʻāʻo ʻana i alakaʻi ʻia-weld-bent —E ʻae ʻia ka hoʻāʻo ʻana i ka piko inā ʻaʻohe māwae a i ʻole nā hemahema ʻē aʻe ma mua o 1/8 in. (3mm) ma kekahi ʻaoʻao i loaʻa i loko o ka metala weld a i ʻole ma waena o ka weld a me ka metala kumu ma hope o ke kulou ʻana.
Nānā Lekiō-ʻO ka lōʻihi piha o kēlā me kēia weld o ka papa X1 a me X2 e nānā pono ʻia e like me nā koi o ka ASME Boiler and Pressure Vessel Code, Pauku ʻehiku, paukū UW-51.
ʻO ka paipu i hoʻopau ʻia ʻaʻole ia me nā kīnā ʻino a loaʻa iā ia ka hoʻopau hana.
A. Ka inoa a ka mea hana paha.
B. Helu kiko'ī (makahiki-lā a koi 'ia).
C. Nui (OD, WT, lōʻihi).
D. Papa (A a i ʻole B).
E. Ke ʻano o ka paipu (F, E, a i ʻole S).
F. ho'āʻo kaomi (seamless kila paipu wale).
G. Helu Wela.
H. ʻO nā ʻike hou aʻe i kuhikuhi ʻia ma ke kauoha kūʻai.
● Paipu ʻole a i ʻole ʻeleʻele / Varnish coating/Epoxy coating/3PE coating (e like me nā koi o ka mea kūʻai aku);
● 6" a ma lalo i nā pūʻolo me ʻelua maʻa pulupulu;
● ʻO nā hopena ʻelua me nā mea pale hope;
● Plain hope, bevel end(2"a ma luna me ka bevel welau, degere: 30~35°), threaded a hui;
● Hoailona.
