Lub ntsiab tshuaj muaj pes tsawg leeg ntawm Q235 yog dab tsi?
A: C Tsawg dua lossis sib npaug 0.22%, Si Less dua lossis sib npaug 0.30%, Mn 0.30% -0.65%, S Tsawg dua lossis sib npaug 0.050%, P Tsawg dua lossis sib npaug 0.045% (Qib A).
Dab tsi yog qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg ntawm Qib A / B / C / D?
A: C, S, thiab P txo qis zuj zus; Qib A: C Tsawg dua lossis sib npaug li 0.22%, S Tsawg dua lossis sib npaug li 0.050%; Qib B: C Tsawg dua lossis sib npaug li 0.20%, S Tsawg dua lossis sib npaug li 0.045%; Qib C: C tsawg dua lossis sib npaug li 0.18%, S / P Tsawg dua lossis sib npaug li 0.040%; Qib D: C Tsawg dua lossis sib npaug li 0.17%, S / P Tsawg dua lossis sib npaug li 0.035%.
Dab tsi yog carbon sib npaug (Ceq) ntawm Q235?
A: Ceq≈0.25%-0.30%, weldability zoo heev, feem ntau tsis tas yuav tsum tau preheating.
Dab tsi yog qhov cuam tshuam ntawm sulfur thiab phosphorus ntawm Q235?
A: Sulfur (S) nce kub brittleness, thaum phosphorus (P) nce txias brittleness; qib siab dua, qhov qis S / P piv, thiab qhov zoo dua qhov toughness.
Dab tsi yog lub luag haujlwm ntawm manganese hauv Q235?
A: Nws yog ib qho tseem ceeb ntxiv dag zog rau lub cev, txhim kho lub zog thiab tawv, txhim kho weldability, thiab tiv thaiv kev phom sij ntawm leej faj.