ASTM A333 Qib 1 Cov Khoom Siv yog dab tsi?
ASTM A333 Qib 1 yog carbon steel specification rau seamless thiab welded yeeb nkab siv nyob rau hauv qis kub. Nws belongs rau tib tsev neeg tus qauv raws li Qib 3, 6, 8, 9 thiab 11, tab sis nws yog qhov yooj yim - carbon nkag uas tsis muaj npib tsib xee lossis lwm yam alloying ntxiv. Cov qib tso siab rau cov pa roj carbon monoxide thiab manganese ntxiv rau qhov yuav tsum tau kuaj Charpy cuam tshuam ntawm -45 degrees Celsius los lav tus cwj pwm zoo hauv kev pabcuam txias.
Tshuaj muaj pes tsawg leeg
Qib 1 yog ib qho yooj yim carbon-manganese steel, uas ua rau cov khoom lag luam thiab yooj yim weldable.
| Element | Cov ntsiab lus,% |
|---|---|
| Carbon, siab tshaj | 0.30 |
| Manganese | 0.40-1.06 |
| Phosphorus, max | 0.025 |
| Sulfur, siab tshaj | 0.025 |
| Nickel | Tsis tau teev tseg |
Mechanical Properties
Qib 1 yeeb nkab yuav tsum ua kom tau raws li qhov yuav tsum tau muaj tensile yam tsawg kawg nkaus ntawm ASTM A333 thiab dhau Charpy V-qhov ntsuas qhov ntsuas kub ntawm qib.
| Khoom | Kev xav tau |
|---|---|
| Yield zog, yam tsawg kawg nkaus | 205 MPa (30,000 psi) |
| Tensile zog, yam tsawg kawg nkaus | 380 MPa (55,000 psi) |
| Charpy impact test | Ntawm -45 ° C (-50 ° Fahrenheit) |
| Kev xa khoom | Normalized los yog normalized thiab tempered |
Qib 1 vs Qib 6 vs Qib 3
Tag nrho peb qib yog tsim los rau tib tus qauv, tab sis lawv qhov qis -kub muaj peev xwm thiab tus nqi sib txawv.
| Qib | Alloy System | Impact Test | Yam tsawg kawg nkaus | Tus Nqi Tus Nqi Ua Haujlwm |
|---|---|---|---|---|
| Qib 1 | Cov pa roj carbon | -45 ° C | 205 MPa | qis tshaj |
| Qib 6 | Cov pa roj carbon | -45 ° C | 240 MPa | Nruab nrab |
| Qib 3 | 3.5% npib tsib xee | -101 ° C | 240 MPa | Siab dua |
Qib 1 muaj lub zog qis dua me ntsis thiab tus nqi qis dua Qib 6 nrog rau qhov zoo ib yam -45 degrees Celsius cuam tshuam kev tsim nyog. Qib 3 ntxiv npib tsib xee rau kev pabcuam qis rau -101 degrees Celsius ntawm tus nqi siab dua.
Tej kev siv
Qib 1 yeeb nkab yog siv rau qis- txheej txheem kav dej kub, tub yees thiab txias- cov tshuab khaws cia, LPG cov kab, kev pabcuam ammonia, thiab cov kav dej hauv cov huab cua txias uas qhov ntsuas qhov ntsuas qhov tsawg kawg nkaus nyob saum -45 degrees Celsius. Nws kuj tau teev tseg rau kev sib txuas cov kab mus rau qhov chaw cia khoom kub qis uas cov kav dej nws tus kheej ua haujlwm ntawm qhov kawg ntawm qhov system.
Cov ntsiab lus xaiv thiab ua haujlwm
Txheeb xyuas qhov tsawg kawg nkaus tsim hlau kub ntawm qhov system tiv thaiv -45 degrees Celsius kev tsim nyog ua ntej xaiv Qib 1. Qhia cov yeeb nkab raws li ASTM A333 Qib 1 nrog Charpy impact testing, thiab tshawb xyuas daim ntawv pov thawj zeb rau qhov cuam tshuam qhov tseem ceeb thiab cov xov tooj cua sov. Siv cov txheej txheem vuam tsim nyog rau cov kev pabcuam kub qis thiab zam kom tsis txhob muaj cua sov hauv zos lossis arc ntaus uas tuaj yeem ua rau cov tawv nqaij tsis zoo. Rau cov qauv tsim kub txias dua -45 degrees Celsius, txav mus rau Qib 3 lossis lwm qib tsim nyog es tsis lees txais Qib 1.
Kev Ntseeg Tsis Zoo
Qib 1 tsis yog nickel steel; tsis zoo li Qib 3 nws tsis muaj nickel thiab tsis tuaj yeem ua haujlwm qis dua li -45 degrees Celsius. Cov qib tsis zoo ib yam li A333 Qib 6, vim tias ob qhov sib txawv ntawm qhov tsawg kawg nkaus lub zog thiab muaj peev xwm muaj. Kev ntsuam xyuas cuam tshuam yog qhov yuav tsum tau ua rau A333 yeeb nkab thiab tsis tuaj yeem zam lub npe ntawm tus nqi. Thaum kawg, qhov kev xaiv yuav tsum tau sau ua Qib 1; tsis muaj A333 qib B nyob rau hauv tus qauv, thiab kev txiav txim raws li kev tsim qauv tsim kev pheej hmoo tau txais cov khoom tsis tsim nyog.
FAQ
ASTM A333 Qib 1 yog dab tsi?
Nws yog ib qho yooj yim carbon steel yeeb nkab specification rau qis - qhov kub thiab txias kev pab cuam, cuam tshuam los ntawm -45 degrees Celsius, nrog ib tug tsawg kawg nkaus yield zog ntawm 205 MPa.
Cov tshuaj muaj pes tsawg leeg ntawm Qib 1 yog dab tsi?
Carbon 0.30% siab tshaj plaws thiab manganese 0.40-1.06%, nrog phosphorus thiab sulfur txhua txwv rau 0.025%.
Qhov txawv ntawm Qib 1 thiab Qib 6 yog dab tsi?
Ob leeg yog cov pa roj carbon monoxide dawb kuaj ntawm -45 degrees Celsius, tab sis Qib 6 yuav tsum muaj qhov siab tshaj qhov ua tau zoo ntawm 240 MPa thiab lub zog tensile ntawm 415 MPa.
Qib 1 puas tuaj yeem siv qis dua -45 degrees Celsius?
Tsis yog. Qhov kev tsim nyog Charpy yog nyob ntawm -45 degrees Celsius, yog li kev pabcuam txias dua yuav tsum muaj qib nickel xws li A333 Qib 3.
Puas yog A333 Qib 1 weldable?
Yog, cov ntsiab lus ntawm cov pa roj carbon tsawg muab qhov zoo weldability. Siv cov txheej txheem welding uas muaj peev xwm qis thiab qis - hydrogen consumables.
Lub zog tensile ntawm A333 Qib 1 yog dab tsi?
Lub zog tensile yam tsawg kawg nkaus yog 380 MPa, sib npaug rau 55,000 psi.