Txheej txheem cej luam ntawm ASTM A516 Txuj
ASTM A516 yog tus qauv thoob ntiaj teb lees paub rau cov pa roj carbon steel phaj rau welded siab hlab ntsha, boilers, thiab cia tso tsheb hlau luam ua hauj lwm nyob rau hauv nruab nrab mus rau qis kub, haum rau roj thiab roj, petrochemicals, thiab lwm yam lag luam. Nws suav nrog plaub qib zog (55, 60, 65, 70), nrog rau cov lej sib raug rau qhov tsawg kawg nkaus tensile lub zog hauv ksi. Txhua qib tau txais kev kho cua sov kom zoo, thiab ob qho tib si Gr 55 thiab Gr 70 tuaj nrog daim ntawv pov thawj zeb xeem (MTC), nrog rau thib peb - kev tshuaj ntsuam xyuas muaj nyob ntawm kev thov.
Mechanical Properties: Strength vs. Ductility
|
Mechanical Property |
ASTM A516 Gr55 |
ASTM A516 Gr70 |
|
Yam tsawg kawg Tensile Strength |
380-515 MPa (55-75 ksi) |
485-620 MPa (70-90 ksi) |
|
Yam tsawg kawg nkaus Yield Strength |
Ntau dua lossis sib npaug rau 205 MPa (Ntau dua lossis sib npaug rau 30 ksi) |
Ntau dua lossis sib npaug rau 260 MPa (Ntau dua lossis sib npaug rau 38 ksi) |
|
Elongation (50 hli ntsuas) |
Ntau dua lossis sib npaug li 27% |
Ntau dua lossis sib npaug li 21% |
|
Elongation (200 hli ntsuas) |
Ntau dua lossis sib npaug li 23% |
Ntau dua lossis sib npaug li 17% |
|
Tsawg-Kev Ua Haujlwm Kub |
Zoo rau nruab nrab qhov kub thiab txias |
Kev ntseeg tau ntawm -46 degree, xaiv tau qis dua |
|
Hardness (Normalized) |
Tsis tau teev, softer dua Gr 70 |
Tsawg dua lossis sib npaug li 187 HB |
Cov yam ntxwv tseem ceeb thiab cov txiaj ntsig
ASTM A516 Gr 55: Tus nqi - Ua tau zoo thiab ntau yam
Tus nqi -Cov: Kev lag luam rau lub teeb-rau- lub luag haujlwm nruab nrab, qis- cov ntawv thov siab nrog kev txwv nyiaj txiag.
High Ductility: Yooj yim rau kev tsim thiab fabricate rau complex duab.
Superior Weldability: Txhim khu kev qha vuam nrog tsawg heev kev pheej hmoo tawg, tsis xav tau preheating.
Certified Zoo: Muab nrog MTC, thib peb - tog tshuaj ntsuam muaj.
ASTM A516 Gr 70: Siab -Lub zog thiab ntseeg tau
Siab zog: Zoo tagnrho rau siab -siab, siab tseem ceeb cov hlab ntsha nrog tshwj xeeb load-cov kabmob muaj peev xwm.
Zoo heev Low-Tsub Toughness: Haum rau qhov chaw txias (piv txwv li, LPG cia).
Weldability zoo: Txhim khu kev qha rau siab -siab boilers/reactors; preheating tej zaum yuav xav tau rau cov phaj tuab.
Kev xeem Advanced: Txhawb HIC, NACE MR0175, thiab Z15/Z25/Z35 rau qhov chaw hnyav (piv txwv li, qhov dej qaub).
Cim npe nrov: Kev sib piv ntawm a516 qib 55 thiab qib 70, Tuam Tshoj kev sib piv ntawm a516 qib 55 thiab qib 70 manufacturers, lwm tus neeg, Hoobkas
