SA572 Qib 50yog lub siab -lub zog qis- alloy structural steel teev los ntawm ASME Boiler thiab Pressure Vessel Code, muab qhov tsawg kawg nkaus lub zog ntawm 50 ksi (345 MPa). Nws yog siv feem ntau rau cov khoom siv hauv lub nkoj siab thiab boiler kev tsim kho qhov twg ASME code ua raws, nruj traceability, thiab ntawv pov thawj yuav tsum tau.
A572 Qib 50yog tus qauv ASTM International zoo tib yam rau tib lub siab -lub zog qis- alloy steel nrog 50 ksi yam tsawg kawg nkaus lub zog, siv dav hauv kev siv cov qauv siv dav dav xws li choj, lub tsev thav duab, thiab cov kav xa hluav taws xob uas ASME code- qib ntawv pov thawj tsis raug yuam.
Tsis muaj kev sib txawv ntawm cov tshuaj muaj pes tsawg leeg lossis cov khoom siv kho tshuab ntawm SA572 thiab A572 Qib 50. Qhov sib txawv yog kev tswj hwm nkaus xwb thiab cuam tshuam rau cov cai tswj hwm thiab cov ntawv pov thawj.
Ntawm no yog qhov kev qhia meej meej:
Core Difference: Qhov "S" Prefix
| Feature | ASTM A572 Qib 50 | ASME SA572 Qib 50 |
|---|---|---|
| Lub Koom Txoos Kav Tos Liv | ASTM International (American Society for Testing and Materials). | ASME (American Society of Mechanical Engineers). |
| Lub hom phiaj ntawm Specification | Cov khoom siv tshwj xeeb rau kev siv cov qauv siv hauv vaj tse, txuas hniav, yees, thiab kev tsim kho dav dav. | Cov khoom siv zoo ib yam tau txais thiab luam tawm los ntawm ASME rau siv hauv boilers, cov hlab ntsha siab, thiab cov khoom siv nuclear. |
| Qhov Tseem Ceeb | Nws yog ib tug standalone coj mus muag thiab structural khoom txheem. | Nws yog "Code Material." "S" ua ntej txhais tau hais tias nws tau teev nyob rau hauv ASME Boiler thiab Pressure Vessel Code (BPVC), Tshooj II, Ntu A, thiab yuav tsum tau ua raws li ASME cov khoom siv zoo. |
| Ntawv pov thawj & Traceability | Muaj ntawv pov thawj kom tau raws li ASTM A572 cov cai. Standard zeb xeem thiab cov ntaub ntawv. | Yuav tsum tau tsim, kuaj, thiab ntawv pov thawj raws li kev ua tau zoo raws li ASME cov cai. Qhov no suav nrog cov ntaub ntawv nruj dua, kev taug qab, thiab muaj peev xwm ua pov thawj los ntawm Tus Neeg Saib Xyuas Kev Tso Cai rau cov ntawv thov nuclear. |
| Cov ntsiab lus ntawm kev yuav khoom | Koj yuav A572 Gr. 50 rau ib tug choj girder, ib kem tsev, los yog kis tau tus mob ntauwd. | Koj qhia SA572 Gr. 50 thaum cov khoom siv yuav yog ib feem ntawm ASME-stamped siab nkoj lossis boiler (piv txwv li, rau qhov tsis yog - kev txhawb nqa kev txhawb nqa txuas nrog lub nkoj). |
Kev sib raug zoo yooj yim:
ASTM A572 txhais tau tiasdab tsicov hlau yog (nws cov chemistry: max 0.23% C, thiab lwm yam, thiab nws cov khoom: 50 ksi min yield).
ASME SA572 hais tias,"Qhov no yog tib yam A572 steel, tab sis nws tau raug tsim thiab ntawv pov thawj raws li cov kev cai ntxiv kev ruaj ntseg ntawm ASME Code."
Cov kev cuam tshuam rau kev hloov pauv:
SA572 yeej ib txwm siv rau qhov chaw ntawm A572 (nws yog tib yam khoom, nrog rau daim ntawv pov thawj ntxiv). Nws feem ntau hu ua "code quality" version.
A572 tsis tuaj yeem hloov pauv rau SA572 hauv ASME Code kev tsim kho. Rau tus neeg tsim khoom nrog ASME "U" thwj siv cov khoom siv, nws feem ntau yuav tsum tau yuav thiab lees paub tias yog cov khoom siv SA. Kev siv tus qauv A572 yuav xav tau cov ntaub ntawv pov thawj ntxiv thiab cov ntaub ntawv dav dav.
Lus Cim Tseem Ceeb ntawm Qib 50:
Cov "Qib 50" yog tib yam nyob rau hauv ob qho tib si specifications, lub ntsiab lus qhov tsawg kawg nkaus yield zog yog 50,000 psi (345 MPa) rau ob qho tib si A572 thiab SA572.
Xaus: Rau txhua qhov kev suav engineering, cov txheej txheem vuam, thiab xaiv cov khoom siv, SA572 Qib 50 thiab A572 Qib 50 yog tib yam hlau. Qhov sib txawv tsuas yog kev tswj hwm thiab kev tswj hwm kev ua haujlwm tau zoo los ntawm ASME Boiler thiab Pressure Vessel Code rau kev nyab xeeb- cov ntawv thov tseem ceeb. Yog tias koj qhov project yog tswj hwm los ntawm ASME code, koj yuav tsum qhia SA572. Rau tag nrho lwm yam kev ua haujlwm, A572 tau teev tseg.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
