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Mwachidule
Chitoliro chachitsulo cha ASTM A106Gr.B chosasunthika ndi chitsulo chotsika kwambiri cha carbon, chomwe chimagwiritsidwa ntchito kwambiri m'mafakitale a petroleum, mankhwala, ndi boilers. Zomwe zili ndi makina abwino. Amagwiritsidwa ntchito kwambiri kunyamula madzi otentha kwambiri monga madzi, mafuta, gasi, ndi zina.
Chitoliro chopanda chitsulo cha ASTM A106 chimaphatikizapo njira ziwiri: kukokedwa kuzizira komanso kukulunga kotentha.
Kugwiritsa ntchito
Chitoliro chosasunthika chachitsulo cha ntchito yotentha kwambiri ya ASTM A106, yoyenera kutentha kwambiri
Main Grade
Gulu lazitsulo zapamwamba za carbon structural: G.A,GR.B,GR.C
Chigawo cha Chemical
| Kupanga, ％ | |||
| Gulu A | Gulu B | Gulu C | |
| Kaboni, max | 0.25A | 0.3B | 0.35B |
| Manganese | 0.27-0.93 | 0.29-1.06 | 0.29-1.06 |
| Phosphorous, max | 0.035 | 0.035 | 0.035 |
| Sulphur, max | 0.035 | 0.035 | 0.035 |
| silicon, min | 0.10 | 0.10 | 0.10 |
| Chrome, maxC | 0.40 | 0.40 | 0.40 |
| Copper, maxC | 0.40 | 0.40 | 0.40 |
| Molybdenum, maxC | 0.15 | 0.15 | 0.15 |
| Nickel, maxC | 0.40 | 0.40 | 0.40 |
| Vanadium, maxC | 0.08 | 0.08 | 0.08 |
| A Pakuchepetsa kulikonse kwa 0.01% pansi pa mpweya wotchulidwawo, kuwonjezeka kwa 0.06% manganese pamwamba pa mlingo womwe watchulidwa kudzaloledwa kufika pa 1.35%. | |||
| B Pokhapokha ngati watchulidwa mwanjira ina ndi wogula, pakuchepetsa kulikonse kwa 0.01% kutsika kwa carbon maximum yomwe yatchulidwayo, manganese 0.06% pamwamba pa zomwe zanenedwazo zidzaloledwa kufika pa 1.65%. | |||
| C Zinthu zisanuzi zitaphatikizidwa sizidzadutsa 1%. | |||
Mechanical Property
| Gulu A | Gulu B | Gulu C | ||||||
| Mphamvu zolimba, min, psi(MPa) | 48 000 (330) | 60 000 (415) | 70 000 (485) | |||||
| Zokolola mphamvu, min, psi(MPa) | 30 000 (205) | 35 000 (240) | 40 000 (275) | |||||
| Longitudinal | Chodutsa | Longitudinal | Chodutsa | Longitudinal | Chodutsa | |||
| Elongation mu 2 in. (50 mm), min, % Mayeso ang'onoang'ono a elongation transverse strip test, komanso ang'onoang'ono ang'onoang'ono oyesedwa m'gawo lonse | 35 | 25 | 30 | 16.5 | 30 | 16.5 | ||
| Pamene muyezo kuzungulira 2-in. (50-mm) kuyesa kutalika kwa gauge kumagwiritsidwa ntchito | 28 | 20 | 22 | 12 | 20 | 12 | ||
| Kwa kuyesa kwa mizere yayitali | A | A | A | |||||
| Pamayeso amizere yodutsa, kuchotsera pa 1/32-in iliyonse. (0.8-mm) kuchepa kwa makulidwe a khoma pansi pa 5/16 in. (7.9 mm) kuchokera ku utali wocheperako wa magawo otsatirawa adzapangidwa | 1.25 | 1.00 | 1.00 | |||||
| A Kutalika kocheperako mu 2 in. (50 mm) kudzatsimikiziridwa ndi equation iyi: | ||||||||
| e=625000A 0.2 / U 0.9 | ||||||||
| kwa mayunitsi a inchi-pounds, ndi | ||||||||
| e=1940A 0.2 / U 0.9 | ||||||||
| kwa ma SI mayunitsi, | ||||||||
| kumene: e = kutalika kocheperako mu 2 in. (50 mm), %, kuzungulira kufupi ndi 0.5%, A = gawo lagawo lachitsanzo choyesa kukanika, in.2 (mm2), kutengera m'mimba mwake mwatchutchutchu kapena m'mimba mwake mwadzina kapena m'lifupi mwadzina lachitsanzo ndi makulidwe a khoma lotchulidwa, mozungulira pafupi ndi 0.01 in.2 (1 mm2) . (Ngati dera lomwe lawerengedwa motere ndi lofanana kapena lalikulu kuposa 0.75 in.2 (500 mm2), ndiye kuti mtengo wa 0.75 in.2 (500 mm2) udzagwiritsidwa ntchito.), ndipo U = mphamvu yokhazikika, psi (MPa). | ||||||||
Chofunikira Choyesa
Kuphatikiza pakuwonetsetsa kupangidwa kwamankhwala ndi makina amakina, mayeso a hydrostatic amachitidwa m'modzim'modzi, ndikuyesa kuphulika ndi kuwongolera kumachitika. . Kuphatikiza apo, pali zofunika zina za microstructure, kukula kwambewu, ndi decarburization wosanjikiza wa chitoliro chomalizidwa chachitsulo.
Kupereka Mphamvu
Luso Lopereka: Matani 1000 pamwezi pa Gulu la ASTM SA-106 Pipe yachitsulo
Kupaka
M'mitolo Ndipo M'bokosi Lamphamvu Lamatabwa
Kutumiza
7-14 masiku ngati katundu, 30-45 masiku kupanga
Malipiro
30% depsoit, 70% L/C kapena B/L buku kapena 100% L/C pakuona
Tsatanetsatane wa Zamalonda
Boiler Tube
GB/T5310-2017
ASME SA-106/SA-106M-2015
ASTMA210(A210M)-2012
ASME SA-213/SA-213M
