1. Q: Dab tsi yog qhov txawv ntawm Q265 thiab Q295 steel kav?
A:Qhov tseem ceeb sib txawv yog nyob rau hauv lawv qhov tsawg kawg nkaus yield zog. Q265 muaj qhov tsawg kawg nkaus lub zog ntawm 265 MPa, thaum Q295 muaj 295 MPa. Yog li ntawd, Q295 muaj ntau dua mechanical zog thiab load- bearing peev tab sis tej zaum yuav muaj tsawg formability dua Q265.
2. Q: Cov qauv twg feem ntau tswj hwm kev tsim cov kav dej Q265 thiab Q295?
A:Lawv feem ntau tau teev tseg raws li Suav GB / T tus qauv system (xws li GB / T 3091, GB / T 8163). Cov qhab nia sib npaug lossis zoo sib xws tuaj yeem pom nyob rau hauv cov qauv thoob ntiaj teb xws li ASTM A53 Qib B (kwv yees rau Q265) thiab ASTM A106 Qib B (lub zog siab dua, tab sis Q295 qee zaum suav rau cov ntawv zoo sib xws).
3. Q: Cov ntawv thov twg yog Q265 steel yeeb nkab feem ntau siv?
A:Q265 yog dav siv rau qis - mus rau - nruab nrab siab siab kev thauj mus los (dej, roj, huab cua), nyob rau hauv structural applications xws li laj kab, tes tuav, scaffolding, thiab rau cov neeg kho tshuab qhov chaw uas muaj zog heev tsis tseem ceeb.
4. Q: Dab tsi yog cov ntawv thov rau siab dua -lub zog Q295 steel yeeb nkab?
A:Q295 yog siv rau hauv cov qauv kev xav tau ntau dua, cov kab txhawb nqa, hnyav dua -cov kabmob cov khoom siv, thiab hauv cov hlab ntsha / cov kav dej uas xav tau kev nyab xeeb dua li Q265 tuaj yeem muab tau.
5. Q: Yuav ua li cas weldability ntawm Q265 piv rau Q295?
A:Ob qib feem ntau muaj kev sib txuas zoo siv txoj hauv kev (SMAW, GMAW, GTAW). Txawm li cas los xij, vim nws cov pa roj carbon ntau dua me ntsis, Q295 yuav xav tau cov txheej txheem vuam ntau dua (ua ntej- cua sov, tswj cov cua sov) kom tsis txhob muaj qhov txias txias, tshwj xeeb tshaj yog nyob rau hauv cov ntu tuab.
