ASTM B550 Zirconium Alloy Bar Thiab Hlau
Qhov kev qhia tshwj xeeb no suav nrog peb qib ntawm zirconium thiab zirconium alloy bar thiab hlau: qib R60702, zirconium unalloyed; qib R60704, zirconium tin; thiab qib R60705, zirconium niobium. Tshuaj muaj pes tsawg leeg; thiab cov cuab yeej cuab yeej cuab tam xws li tensile lub zog, yield zog thiab elongation.
Lub zirconium & zirconium alloy bar thiab hlau yog tsim los rau ASTM B550 npog peb qib: Qib R60702: zirconium unalloyed, Qib R60704: zirconium-tin, Qib R60705: zirconium-niobium. Cov khoom siv tuaj yeem ua tiav kub lossis txias tiav, feem ntau nyob rau hauv annealed mob. Lub Zr & Zr alloy bar los yog hlau tej zaum yuav muab nyob rau hauv round, square, octagon, hexagon los yog ca duab. Feem ntau, cov khoom xa tuaj muaj xws li tsis-descaled, descaled, descaled & pickled, tig, av los yog polished.
Cov Neeg Siv Khoom Tshwj Xeeb Hlau - GNEE
Bar: kub dov, forged, los yog txias ua hauj lwm semi-tiav khoom seem khoom uas nws cross sectional cheeb tsam yog sib npaug zos rau los yog tsawg dua 16 nti2 [10323 mm2]; Cov duab plaub yuav tsum tsawg dua lossis sib npaug li 10 nti [254 mm] hauv qhov dav thiab ntau dua 0.1875 nti [4.8 mm] hauv thickness.
Hlau: puag ncig, tiaj tus, lossis cov duab tshwj xeeb tsawg dua lossis sib npaug rau 0.1875 nti [4.8 mm] hauv tuab lossis loj loj.
Chemical Composition Requirements
| Element | ASTM B550 Zr & Zr Alloy Qib | ||
| R60702 | R60704 | R60705 | |
| Zirconium (+ Hf) | Ntau dua lossis sib npaug rau 99.2 | Ntau dua lossis sib npaug rau 97.5 | Ntau dua lossis sib npaug rau 95.5 |
| Hafnium | Tsawg dua lossis sib npaug li 4.5 | Tsawg dua lossis sib npaug li 4.5 | Tsawg dua lossis sib npaug li 4.5 |
| Hlau + Chromium | Tsawg dua lossis sib npaug rau 0.2 | 0.2~0.4 | Tsawg dua lossis sib npaug rau 0.2 |
| Tin | - | 1.0~2.0 | - |
| Hydrogen | Tsawg dua lossis sib npaug rau 0.005 | Tsawg dua lossis sib npaug rau 0.005 | Tsawg dua lossis sib npaug rau 0.005 |
| Nitrogen | Tsawg dua lossis sib npaug rau 0.025 | Tsawg dua lossis sib npaug rau 0.025 | Tsawg dua lossis sib npaug rau 0.025 |
| Cov pa roj carbon | Tsawg dua lossis sib npaug rau 0.05 | Tsawg dua lossis sib npaug rau 0.05 | Tsawg dua lossis sib npaug rau 0.05 |
| Niobium | - | - | 2.0~3.0 |
| Oxygen | Tsawg dua lossis sib npaug rau 0.16 | Tsawg dua lossis sib npaug rau 0.18 | Tsawg dua lossis sib npaug rau 0.18 |
Mechanical Properties ntawm Zr & Zr Alloy Bar thiab Hlau
| ASTM B 550 Cov Lus Qhia Tshwj Xeeb | Tensile zog, min. | Yield zog, min. | Elongation | ||
|---|---|---|---|---|---|
| Qib | ksi ua | MPa | ksi ua | MPa | min. % |
| R60702 | 55 | 380 | 30 | 205 | 16 |
| R60704 | 60 | 415 | 35 | 240 | 14 |
| R60705 | 80 | 550 | 55 | 380 | 16 |
Peb Cov Khoom Siv
Kev sim
Tension Tests-Qhov kev ntsuam xyuas nruj yuav tsum ua raws li Txoj Kev Xeem E8. Txiav txim siab lub zog tawm los ntawm qhov offset (0.2%) txoj kev. Txiav txim siab lub zog tensile siv tus nqi strain ntawm 0.003 txog 0.007 in./in. [mm/mm]/min los ntawm lub zog tawm los. Tom qab lub zog tawm los tau dhau lawm, tus ntoo khaub lig-lub taub hau ceev yuav nce mus txog kwv yees li 0.05 in./in. [mm/mm]/min mus ua tsis tiav.
Chemical Tests-Cov tshuaj ntsuam xyuas tshuaj yuav tsum tau ua los ntawm cov txheej txheem txheej txheem.
Kev lag luam-ua hlau ntau lawm technology
Tau ntau xyoo, peb tau cog lus los tsim thiab muab cov hlau zoo thiab niaj hnub siv zog los txhim kho peb cov txheej txheem tsim khoom thiab cov khoom zoo. Peb lub hom phiaj yog los ua lub ntiaj teb ua tus xa khoom ntawm cov hlau thiab peb yuav txuas ntxiv mus nqis peev hauv cov chaw tsim khoom thiab thev naus laus zis, txhim kho cov kev pabcuam zoo thiab kev daws teeb meem kev thauj mus los, thiab ua ntej cov neeg siv khoom txaus siab.
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