I-ASTM A333 Ibanga lesi-6iyinsimbi ye-carbon steel tubing esetshenziswa ku-cryogenic nezinye izinhlelo zokusebenza ezidinga ukuqina okunophawu. Iyakwazi ukusetshenziswa ezindaweni eziphansi njengo -45°C (-50°F) futhi itholakala ngazo zombili izinhlobo ezingenamthungo nezishiselwe.
I-ASTM A333 ingasetshenziswa ku-ainqubo Seamless noma ashiselwe.
Inqubo yepayipi lensimbi engenamthungo ihlukaniswe ngokushisa okushisayo kanye nokudonswa okubandayo. Futhi idinga ukuboniswa ngaphezu kokumaka.
Amashubhu ensimbi angenamthungo ayinketho yokuqala yezindawo ezinokhahlo, izimo ezicindezelayo, nalapho kudingeka amashubhu agqinsile.
I-ASTM A333 GR.6 idinga ukuphathwa ngendlela eyodwa kwezilandelayo ukuze kulawulwe ukwakheka kwayo okuncane:
● Ukwenza kube kuvamile: Shisisa kuze kufike ezingeni lokushisa elifanayo okungenani elingu-1500 °F [815 °C], bese upholisa emoyeni noma ekamelweni lokupholisa lesithando somlilo esilawulwa umoya.
● Ukushisa ngemva kokujwayela: Ngemva kokujwayela, kungase kushiselwe futhi kumazinga okushisa afanele ngokubona komkhiqizi.
● Ezinqubweni ezingenamthungo, lokhu kungafezwa ngokulawula izinga lokushisa lomsebenzi oshisayo kanye nokusebenza kokuphothula ukushisa ukuze amazinga okushisa okugcina asukela ku-1550 kuya ku-1750 °F [845 kuya ku-945 °C] bese apholisa emoyeni noma esithandweni somlilo esilawulwa yi-atmosphere kusuka ekushiseni kokuqala okungenani okungu-1550 °F [84].
● Ukushisa ngemva kokusebenza okulawulwayo nokusebenza ngokuqeda ukushisa kungase kushiselwe futhi kumazinga okushisa afanele ngokubona komkhiqizi.
● Ukucisha nokushisa: Esikhundleni sanoma yikuphi ukwelapha okungenhla, amashubhu angenamthungo eBanga 1, 6, nele-10 angase alashwe ngokushisisa aze afike ezingeni lokushisa elifanayo okungenani elingu-1500 °F [815 °C], okulandelwa ukucisha emanzini nokushisisa kabusha ezingeni lokushisa elifanele.
AEkunciphiseni ngakunye kwekhabhoni ngo-0.01% ngaphansi kuka-0.30 %, ukwenyuka kwe-manganese ngo-0.05% ngaphezu kuka-1.06 % kuzovunyelwa ukuthi kufike ku-1.35 % wemanganese.
CNgesivumelwano phakathi komkhiqizi nomthengi, umkhawulo we-niobium ungase unyuswe ufinyelele ku-0.05 % ekuhlaziyeni ukushisa kanye no-0.06 % ekuhlaziyeni umkhiqizo.
DAmagama athi Niobium (Nb) kanye ne-Columbium (Cb) angamanye amagama e-elementi efanayo.
I-Tensile Property
| Ibanga | Amandla aqinile | Amandla okuhoxa | Ukwelula | |
| ku-2 in. noma 50 mm, min, % | ||||
| I-Longitudinal | Phenduka | |||
| I-ASTM A333 Ibanga lesi-6 | 415 MPa [60,000 psi] | 240 MPa [35,000 psi] | 30 | 16.5 |
Ubude lapha buncane nje obuyisisekelo.
Okunye Ukuhlola
I-ASTM A333 inesivivinyo sokucaba, ukuhlolwa komthelela, ngaphezu kokuhlolwa okuqinile.
Okulandelayo amazinga okushisa okuhlolwa komthelela ebangeni lesi-6:
| Ibanga | I-Impact Temperature | |
| ℉ | ℃ | |
| I-ASTM A333 Ibanga lesi-6 | - 50 | - 45 |
Ipayipi ngalinye kufanele lihlolwe ugesi ongacekeli phansi noma we-hydraulic.
Ukuhlolwa kwe-Hydrostatic:I-ASTM A999Isigaba 21.2 kufanele sihlangatshezwe;
Ukuhlolwa kukagesi okungacekeli phansi: kuzohambisana nezidingo ze-ASTM A999, Division 21.3;
Okujwayelekile: ASTM A333;
Ibanga: Grade 6 noma GR 6
Uhlobo Lwepayipi: Ipayipi lensimbi elingenamthungo noma elishiselwe;
Ubukhulu be-SMLS SMLS: 10.5 - 660.4 mm;
Amashejuli wamapayipi: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 kanye ne-SCH160.
Ukuhlonza: STD, XS, XXS;
Ukumboza: Upende, ukuvenisha, 3LPE, FBE, 3LPP, HDPE, uthayela, i-epoxy zinc-rich, usimende esindayo, njll.
Ukupakisha: Indwangu engangeni manzi, ikesi lokhuni, ibhande lensimbi noma ibhande lensimbi, ipulasitiki noma isivikelo sepayipi lensimbi, njll. Ngokwezifiso.
Imikhiqizo Ematanisa: Amagobe, ama-flange, izifakelo zamapayipi, neminye imikhiqizo ehambisanayo iyatholakala.
