ASTM A333 Qib 6yog carbon steel tubing khoom siv nyob rau hauv cryogenic thiab lwm yam kev siv yuav tsum tau notched toughness.Nws muaj peev xwm siv tau rau hauv ib puag ncig qis li -45 ° C (-50 ° F) thiab muaj nyob rau hauv ob qho tib si seamless thiab welded daim ntawv.
ASTM A333 tuaj yeem siv rau hauv aseamless los yog welded txheej txheem.
Seamless steel yeeb nkab txheej txheem muab faib ua kub tiav thiab txias kos.Thiab nws yuav tsum tau xav txog saum lub cim.
Seamless steel tubes yog thawj qhov kev xaiv rau qhov chaw hnyav, muaj kev ntxhov siab, thiab thaum cov raj tuab tshwj xeeb yuav tsum tau ua.
ASTM A333 GR.6 yuav tsum tau kho raws li ib qho ntawm cov hauv qab no los tswj nws cov microstructure:
● Normalizing: Thaum tshav kub kub mus rau qhov kub tsis sib xws tsawg kawg yog 1500 ° F [815 ° C], tom qab ntawd txias hauv huab cua lossis hauv chav txias ntawm lub qhov cub cua sov.
● Tempering tom qab normalizing: Tom qab normalizing, tej zaum nws yuav reheated rau qhov zoo tempering kub ntawm qhov chaw tsim tshuaj paus qhov kev txiav txim.
● Rau cov txheej txheem seamless, qhov no tuaj yeem ua tiav los ntawm kev tswj qhov kub thiab txias ntawm kev ua haujlwm kub thiab kev ua haujlwm kub kub kom qhov kawg kub ntawm 1550 txog 1750 ° F [845 txog 945 ° C] thiab tom qab ntawd txias hauv huab cua lossis hauv huab cua- tswj qhov cub los ntawm qhov pib kub ntawm yam tsawg kawg 1550 ° F [845 ° C].
● Tempering tom qab tswj kub ua haujlwm thiab ua tiav kev kho cua sov tuaj yeem rov ua kom zoo rau qhov kub thiab txias ntawm qhov chaw tsim khoom qhov kev txiav txim siab.
● quenching thiab tempering: Hloov cov kev kho mob saum toj no, cov raj tsis muaj seamless ntawm Qib 1, 6, thiab 10 yuav raug kho los ntawm cua sov mus rau qhov kub ntawm qhov tsawg kawg nkaus 1500 ° F [815 ° C], tom qab ntawd quenching hauv dej thiab reheating rau qhov zoo tempering.
ARau txhua qhov txo qis ntawm 0.01% carbon qis dua 0.30%, qhov nce ntawm 0.05% manganese saum 1.06% yuav tso cai rau qhov siab tshaj ntawm 1.35% manganese.
CLos ntawm kev pom zoo ntawm cov chaw tsim khoom thiab cov neeg yuav khoom, qhov kev txwv rau niobium tuaj yeem nce mus txog 0.05% ntawm kev ntsuas cua sov thiab 0.06% ntawm cov khoom tsom xam.
DCov ntsiab lus Niobium (Nb) thiab Columbium (Cb) yog lwm lub npe rau tib lub caij.
Tensile Khoom
| Qib | Tensile zog | Yielding zog | Elongation | |
| hauv 2 nti lossis 50 mm, min, % | ||||
| Ntev | Hloov | |||
| ASTM A333 Qib 6 | 415 MPa [60,000 psi] | 240 MPa [35,000 psi] | 30 | 16.5 ib |
Qhov elongation ntawm no tsuas yog qhov tsawg kawg nkaus.
Lwm Cov Kev Xeem
ASTM A333 muaj ib qho kev sim flattening, qhov kev ntsuam xyuas cuam tshuam, ntxiv rau qhov ntsuas tensile.
Cov hauv qab no yog qhov ntsuas qhov ntsuas kub rau qib 6:
| Qib | Impact kub | |
| ℉ | ℃ | |
| ASTM A333 Qib 6 | -50 | -45 |
Txhua lub yeeb nkab yuav tsum raug kuaj xyuas tsis muaj hluav taws xob lossis hydraulic.
Kev kuaj Hydrostatic:ASTM A999 TxujTshooj 21.2 yuav tsum tau ntsib;
Kev ntsuas hluav taws xob tsis zoo: yuav tsum ua raws li cov cai ntawm ASTM A999, Division 21.3;
Txuj: ASTM A333;
Qib: Qib 6 lossis GR 6
Hom yeeb nkab: Seamless lossis welded steel yeeb nkab;
SMLS SMLS qhov ntev: 10.5 - 660.4 hli;
Cov Sijhawm Pipe: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 thiab SCH160.
Kev txheeb xyuas: STD, XS, XXS;
Txheej: Xim, kua roj vanish, 3LPE, FBE, 3LPP, HDPE, galvanized, epoxy zinc-nplua nuj, cement hnyav, thiab lwm yam.
Packing: Waterproof ntaub, rooj ntoo, steel siv los yog steel hlau bundling, yas los yog hlau yeeb nkab kawg tiv thaiv, thiab lwm yam. Customized.
Cov khoom sib txuam: khoov, flanges, yeeb nkab fittings, thiab lwm yam khoom sib txuam muaj.
