ASTM A501 Gawo Bndi chitoliro chotentha chopangidwa ndi welded komanso chosasokonezeka cha chitsulo cha kaboni chokhala ndi mphamvu yochepera 448 MPa (65,000 psi) yogwiritsa ntchito mosiyanasiyana.
Chithunzi cha ASTM A501ndi yopangira ndikugwiritsa ntchito machubu achitsulo otenthetsera otenthetsera komanso opanda mpweya wa kaboni kuti agwiritse ntchito mwadongosolo.
Machubu achitsulowa amatha kukhala akuda (osaphimbidwa) kapena ovinidwa otentha, omwe amawonjezera kukana kwa dzimbiri kudzera munjira yopangira galvanizing, ndikupangitsa kuti ikhale yoyenera kusiyanasiyana kwachilengedwe.
Mapaipi achitsulowa amagwiritsidwa ntchito kwambiri m'milatho, nyumba, ndi zina zambiri zamapangidwe.
ASTM A501 imayika chitoliro chachitsulo m'makalasi atatu,giredi A, giredi B, ndi giredi C.
Gulu B ndilomwe limagwiritsidwa ntchito kwambiri pamagiredi atatuwa chifukwa limapereka zinthu zofananira pamagwiritsidwe ambiri.
Chitsulocho chidzapangidwa ndimaziko-oxygen kapena magetsi-arc-ng'anjo kupanga zitsulo.
Chitsulo chikhoza kuponyedwa mu ingots kapena kuponyedwa chingwe.
Pamene zitsulo zamagulu osiyanasiyana zimapangidwira motsatizana, wopanga zitsulo adzazindikira zotsatira zake zosinthira ndikuzichotsa pogwiritsa ntchito njira yokhazikitsidwa yomwe imalekanitsa bwino magiredi.
The chubu ayenera kupangidwa ndi imodzi mwa njira zotsatirazi:opanda msoko;kuwotcherera ng'anjo-butt-kuwotcherera (kuwotcherera mosalekeza);kuwotcherera kukana kwamagetsi (RW) kapena kuwotcherera kwa arc (SAW)kutsatiridwa ndi kutenthetsanso mu gawo lonse la mtanda ndi kupanga kutentha ndi kuchepetsa kapena kupanga, kapena zonse ziwiri.
Njira yowotcherera ya SAW imagawidwa kukhalaMtengo wa LSAW(SAWL) ndi SSAW (Mtengo wa HSAW).
Mapangidwe omaliza a mawonekedwe adzapangidwa ndi njira yotentha yopangira.
Zidzakhala zololedwa kuwonjezera kutentha kwa kutentha kwa chubu ndi makulidwe a khoma kuposa 13mm [1/2 mu].
| Zofunikira za Chemical za ASTM A501 Grade B,% | |||
| Kupanga | Gulu B | ||
| Heat Analysis | Kusanthula Kwazinthu | ||
| C (Kaboni)B | max | 0.22 | 0.26 |
| Mn (Manganese)B | max | 1.40 | 1.45 |
| Phosphorous (P) | max | 0.030 | 0.040 |
| S (Sulphur) | max | 0.020 | 0.030 |
| Ku (Copper)B (pamene chitsulo chamkuwa chatchulidwa) | min | 0.20 | 0.18 |
| BPakuchepetsa kulikonse kwa 0.01 peresenti pansi pamlingo womwe wafotokozedwa wa kaboni, kuwonjezeka kwa 0.06 peresenti pamwamba pamlingo womwe watchulidwa wa manganese ndikololedwa, mpaka 1.60 % pakuwunika kutentha ndi 1.65 % pakusanthula kwazinthu. | |||
Kusanthula kwazinthu kumapangidwa pogwiritsa ntchito zitsanzo zoyesedwa kuchokera ku mautali awiri a chubu kuchokera pagawo lililonse lautali wa 500, kapena gawo lake, kapena magawo awiri a katundu wogubuduzika kuchokera pagawo lililonse la kuchuluka kolingana kwa katundu wogubuduzika.
Zitsanzo zolimba zidzatsatira zofunikira za Njira Zoyesera ndi Mafotokozedwe A370, Zowonjezera A2.
| ASTM A501 Grade B Tensile Zofunikira | |||
| Mndandanda | Makulidwe a Khoma mm [mu] | Gulu B | |
| Kulimba kwamakokedwe, min, psi[MPa] | Zonse | 65000 [448] | |
| Zokolola mphamvu, min, psi[MPa] | ≤25 [1] | 46,000 [315] | |
| ＞25 [1] ndi ≤ 50 [2] | 45,000 [310] | ||
| ＞50 [2] ndi ≤ 76 [3] | 42,500 [290] | ||
| ＞76 [3] ndi ≤ 100 [4] | 40,000 [280] | ||
| Elongation, min,% | - | 24 | |
| Impact Energy | mphindi,pafupifupi, ft/Ibf [J] | - | 20 [27] |
| mphindi,wosakwatiwa, ft/Ibf [J] | - | 14 [19] | |
Zitsanzo zoyezetsa kupanikizika zizikhala zoyeserera zazitali zazitali kapena zoyeserera zazitali zazitali.
Kwa welded chubu, zitsanzo zilizonse zoyeserera za mizere yayitali zidzatengedwa pamalo osachepera 90 ° kuchokera ku weld ndipo zidzakonzedwa popanda kuphwanyidwa mu utali wa geji.
Longitudinal strip testzitsanzo zonse ziyenera kuchotsedwa.
Zitsanzo zoyeserera zamphamvu sizikhala ndi zolakwika zapamtunda zomwe zingasokoneze kutsimikiza kwamphamvu kwamphamvu.
Makulidwe a khoma ≤ 6.3mm [0.25in] safuna kuyesedwa kwamphamvu.
| ASTM A501 Dimensional Tolerances | ||
| Mndandanda | kukula | Zindikirani |
| Diameter Yakunja (OD) | ≤48mm (1.9 mkati) | ± 0.5mm [1/48 mkati] |
| ＞50mm (2 mkati) | ± 1% | |
| Makulidwe a Khoma (T) | Kunenepa khoma | ≥90% |
| Kulemera | kulemera kwake | 96.5% -110% |
| Utali (L) | ≤7m (22 ft) | -6mm (1/4in) - +13mm (1/2in) |
| 7-14m (22-44 ft) | -6mm (1/4in) - +19mm (3/4) | |
| Kuwongoka | Utali uli mu mayunitsi (ft) | L/40 |
| Utali wa mayunitsi ndi metric (m) | L/50 | |
Machubu omangika azikhala opanda chilema ndipo azikhala ndi mapeto osalala chifukwa chopanga kugudubuza kotentha.
Pamene kuya kwa zolakwika pamwamba pa chitoliro kupitirira 10% ya makulidwe a khoma lodziwika bwino, zolakwikazi zidzaonedwa kuti sizogwirizana.Kukonza ndi kuwotcherera kudzaloledwa pokhapokha atagwirizana pakati pa wogula ndi wopanga.Asanayambe kukonza ndi kuwotcherera, zolakwika zomwe ziyenera kukonzedwa ziyenera kuchotsedwa kwathunthu ndi njira zodula kapena kugaya.
Kuti chitoliro chomangika chikhale chotenthetsera chamalatizidwe, zokutira izi zikugwirizana ndi zofunikira za Specification.Chithunzi cha ASTM A53.
Utali uliwonse wa machubu omangika uyenera kuzindikirika ndi njira yoyenera, monga kugudubuza, kupondaponda, kupondaponda, kapena kujambula.
Chizindikiro cha ASTM A501 chikuyenera kukhala ndi izi zochepa:
Dzina la wopanga
Chizindikiro kapena chizindikiro
Kukula
Dzina la muyezo (chaka chosindikizidwa sichifunikira)
Gulu
Kwa machubu apangidwe <50 mm [2 mu] OD, ndizovomerezeka kulemba chidziwitso chachitsulo pa lebulo lomwe limaphatikizidwa pamtolo uliwonse.
Chitsulo cha ASTM A501 Grade B chimaphatikiza mphamvu ndi ductility ndi njira yopangira yotentha, ndikupangitsa kuti ikhale yoyenera pamagwiritsidwe osiyanasiyana.
Kumanga ndi kumanga: Amagwiritsidwa ntchito pomanga ndi zomangamanga komwe kumafunikira mphamvu zambiri komanso kulimba kwa zida zolimba.Izi zikuphatikizapo nyumba, mabwalo amasewera, milatho, ndi zina.
Industrial Facilities: Chifukwa cha mphamvu zake zazikulu, ndizoyenera kugwiritsidwa ntchito m'mafakitale monga mafakitale ndi malo osungiramo katundu komwe kukhulupirika kwapangidwe ndikofunikira.
Zomangamanga zamayendedwe: Gululi limagwiritsidwa ntchito popanga zoyendera, kuphatikiza masitima apamtunda, ma eyapoti, ndi misewu yayikulu.
Zida Zapangidwe: Amagwiritsidwanso ntchito kwambiri popanga zida zomangira monga mizati, mizati, ndi ma trusses, omwe amapanga chimango chamitundu yosiyanasiyana.
Kupanga zida: Popanga zida zolemetsa ndi makina, zitha kugwiritsidwa ntchito pazigawo zomwe zimafunikira zida zamapangidwe amphamvu kwambiri.
Wopangayo adzapatsa wogula satifiketi yotsatirira yomwe imanena kuti chinthucho chidayesedwa, kuyesedwa, ndikuwunikiridwa molingana ndi izi ndi zofunikira zina zilizonse zomwe zafotokozedwa mu dongosolo logulira kapena mgwirizano ndikuti zofunikira zonsezo zidakwaniritsidwa.Satifiketi yakutsata idzaphatikiza nambala yeniyeni ndi chaka choperekedwa.
Botop Steel ndiwopanga mapaipi apamwamba kwambiri a Welded Carbon Steel Pipe komanso ogulitsa kuchokera ku China, nawonso amanyamula zitoliro zachitsulo zopanda msoko.
Botop Steel ili ndi kudzipereka kolimba pazabwino ndipo imagwiritsa ntchito kuwongolera mokhazikika ndikuyesaonetsetsani kudalirika kwazinthu.Gulu lake lodziwa zambiri limapereka mayankho aumwini ndi chithandizo cha akatswiri, ndikuyang'ana kukhutira kwamakasitomala.Tikuyembekezera kugwira ntchito nanu.
