ASTM A334Grade 6iine simba guru, yakaderera-tembiricha kabhoni simbi pombi ine yakanyanya kabhoni inokwana 0.30%, manganese inosvika 0.29-1.06%, mashoma tensile simba 415Mpa (60ksi), uye goho simba 240Mp (35ksi).
Inonyanya kushandiswa mumunda we liquefied natural gasi zvivakwa, polar engineering, uye firiji tekinoroji, ichichinjika kune yakanyanya kuderera-tembiricha nharaunda.
ASTM A334ndiyo yakajairwa yakatarwa yeasina musono uye akaiswa kabhoni uye alloy simbi tubing ye cryogenic application.
Kune magiredhi akati wandei kuti asangane nezvinodiwa zvakasiyana.
Grade 1, Grade 3, Grade 6, Grade 7, Grade 8, Grade 9, uye Grade 11.
Grade 1uye Grade 6 ose ari maviri mapaipi esimbi kabhoni.
ASTM A334 Giredhi 6 simbi pombi inogona kugadzirwa isina musono kana welded maitiro.
Welding maitiro anosanganisira nzira dzakasiyana dzakadai seelectric resistance welding (ERW)uyeyakanyura arc welding (SAW).
Pazasi, ndiyo nzira yekugadzira yeLongitudinal Submerged Arc Welding (LSAW).
Semugadziri wemachubhu akaiswa simbi, isu tinokwanisa kuzadzisa zvinodiwa nevatengi vedu vakasiyana, tichipa dzakasiyana siyana dzesarudzo dzechigadzirwa kuti tive nechokwadi chekushanda kwakanyanya uye mhando yechishandiso chese.
Iyo imwe-chidimbu weld yeLSAW tubing inovandudza zvakanyanya kusimba kwese kwechubhu, ichiibvumira kukurira kudzvinyirirwa kwepamusoro.
Pamusoro pezvo, inokodzera kugadzirwa kwepombi yesimbi yakakura-dhayamita uye gobvu-yakavezwa inosangana nezvinodiwa zveASTM A334 Giredhi 6 mumaindasitiri makuru uye masisitimu ekupa simba, senge mukuvaka gasi hombe rakanyungudutswa. LNG) zvivakwa.
Panguva imwecheteyo, chaiyo dimensional control inovimbisa kuenderana kwepombi madhayamita uye kukora kwemadziro ekuvandudza kuvimbika kwekubatanidza uye kudzivirira kuvuza mumapombi masisitimu.
Gadzirisai nekudziisa kusvika kune tembiricha yakafanana isingasviki 1550 °F [845 °C] uye inotonhorera mumhepo kana mukamuri yekutonhodza yechoto chinodzorwa nemhepo.
Kana kushatirwa kuchidiwa, kunoda kutaurirana.
Iyo kemikari inoumbwa yeASTM A334 Giredhi 6 pombi yesimbi yakagadzirirwa kuve nechokwadi chemichina yakanaka zvivakwa pakudziya kwakaderera uye kusimba kwakakwana kwesevhisi yakavimbika pasi pemamiriro akanyanya.
| Giredhi | C (Kabhoni) | Mn (Manganese) | P (Phosphorus) | S (Sulfur) | Si (Silicon) |
| Grade 6 | hukuru 0.30 | 0.29-1.06 | hukuru 0.025 | hukuru 0.025 | min 0.10 |
| Pakuderedzwa kwega kwega kwe0.01% kabhoni pazasi 0.30%, kuwedzera kwe0.05% manganese pamusoro pe1.06% kuchabvumidzwa kusvika pa1.35% manganese. | |||||
Kune masimbi eGiredhi 1 kana Giredhi 6, hazvibvumidzwe kupa magiredhi ealloying kune chero zvinhu kunze kweizvo zvinodikanwa.Zvisinei, inobvumirwa kuwedzera zvinhu zvakakosha kuti deoxidation yesimbi.
Maedzo emugodhi papombi yesimbi yeGrade 6 anoitwa pa -45°C [-50°F] senzira yekuona kuoma uye kusamira zvakanaka kwechinhu munzvimbo dzine tembiricha yakaderera zvikuru.
Muedzo wakaitwa nekusarudza yakakodzera simba rekuita zvichibva pamadziro emadziro epombi yesimbi.
Yakaverengerwa hudiki hwekurebesa kukosha kune yega yega 1/32 mukati.[0.80 mm] kudzikira mukukora kwemadziro.
| Giredhi | Rockwell | Brinell |
| ASTM A334 Giredhi 6 | B90 | 190 |
Imwe neimwe pombi ichayedzwa zvisingaite zvemagetsi kana hydrostatically zvinoenderana neSpecification A1016/A1016M.
Kunze kwekunge zvatsanangurwa neimwe nzira muhurongwa hwekutenga, mhando yebvunzo ichashandiswa ichave pasarudzo yemugadziri.
Flattening Test
Flare Test (Seamless Tubes)
Flange Test (Welded Tubes)
Reverse Flattening Test
1. Liquefied Natural Gas (LNG) zvivakwa: Nekuda kweiyo yakanakisa tembiricha zvivakwa, Giredhi 6 simbi pombi inoshandiswa zvakanyanya mukugadzira LNG, kuchengetedza uye zvifambiso.Izvi zvivako zvinoda zvinhu zvinochengetedza simba rakakwirira uye kusimba kwakanaka pakudzika kwakanyanya.
2. Oiri uye gasi ekufambisa masisitimu: inoshandiswa kutakura mvura kana gaseous hydrocarbons, senge liquefied petroleum gas (LPG) uye mamwe emvura-akadzika-tembiricha munzvimbo yakaderera-tembiricha.
3. Firiji tekinoroji uye midziyo yekuchengetedza inotonhora: Izvi zvinoshandawo kune dzimwe nzvimbo dzefiriji tekinoroji, senge kutonhora uye kutonhora kuchengetedza masisitimu mukugadzira chikafu uye mamwe maitiro emakemikari anoda kuderera-kupisa.
4. Polar engineering: Muzvirongwa zveinjiniya munzvimbo dzepolar, senge zviteshi zvekutsvagisa zvesainzi muArctic kana Antarctica, anoshandiswa kuvaka akatsiga uye akavimbika ekufambisa masisitimu uye zvimiro zvinofanirwa kushingirira kutonhora kwakanyanya uye nehutsinye hwemamiriro ekunze.
5. Air-conditioning systems uye heat exchangers: Uyewo inowanzoshandiswa mumagetsi makuru e-air-conditioning uye zvinopisa zvinopisa, izvo zvinoda kushanda zvakanaka pakupisa kwakadzika kuti zvive nechokwadi chekushanda kwehurongwa nekuchengeteka.
6. Injiniya yemagetsi uye zviteshi zvemagetsi: Mumapurojekiti einjiniya emagetsi akakosha, senge mamwe marudzi ezviteshi zvemagetsi, Giredhi 6 machubhu esimbi anogona kushandiswa kubata mvura kana magasi patembiricha yakaderera kuti ive nechokwadi chekushanda kwakachengeteka uye kwakanaka kwehurongwa.
EN 10216-4:P265NL: Inonyanya kushandiswa kune cryogenic pressure midziyo uye cryogenic piping systems, ine kusimba kwakanaka uye simba uye yakakodzera kushandiswa munzvimbo dze cryogenic.
DIN 17173:TTSt41N: Yakagadzirirwa kudzika-tembiricha maapplication, inopa yakanakisa yakaderera-tembiricha kuita uye inowanzoshandiswa mumidziyo uye pombi inoda yakanyanya kuderera-tembiricha yekushanda nharaunda.
JIS G3460:STPL46: Inoshandiswa semapombi ekufambisa masisitimu munzvimbo dzine tembiricha yakaderera, inokwanisa kumirisana nekumwe kudzika-tembiricha kukanganiswa uye kumanikidzwa.
GB/T 18984:09Mn2V: Nyaya iyi inyanzvi mukugadzira machubhu esimbi asina musono kuti ashandiswe munzvimbo dzine tembiricha yakaderera, ine kusimba kwekudzikira kwakadzikama uye kuramba kutsemuka.
Paunenge uchisarudza zvinhu izvi zvakaenzana, zvakakosha kuve nechokwadi chekuti chimiro chazvo chemakemikari uye zvemichina zvinosangana nezvinodiwa zvekushandisa uye zvinodiwa zvekushanda.
Aya ma paramita anofanirwa kuenzaniswa zvakadzama uye mamwe maitiro ekuyedza uye etifiketi anogona kudikanwa kuti aone kukodzera uye kuita kwechinhu.
Kubva payakavambwa muna 2014, Botop Steel yave mutengesi anotungamira wekabhoni simbi pombikuChamhembe kweChina, inozivikanwa nebasa rakanakisa, zvigadzirwa zvemhando yepamusoro, uye mhinduro dzakakwana.Iyo kambani inopa dzakasiyana siyana dzekabhoni simbi mapaipi uye zvigadzirwa zvine hukama, zvinosanganisira isina musono, ERW, LSAW, uye SSAW simbi pombi, pamwe neyakakwana mutsara wepombi fittings uye flanges.
Zvigadzirwa zvayo zvehunyanzvi zvinosanganisira alloys epamusoro-giredhi uye austenitic simbi isina tsvina, yakagadzirirwa kusangana nezvinodiwa zveakasiyana mapurojekiti epombi.
