Q: Dab tsi "Q" thiab "235" sawv cev rau Q235?
A: Q stands rau "Yield Strength," thiab 235 hais txog qhov tsawg kawg nkaus yield zog ntawm 235 MPa rau ib tug tuab ≤16mm.
Q: Tus qauv rau Q235 yog dab tsi?
A: GB / T 700-2006 "Carbon Structural Steel."
Q: Muaj pes tsawg qib zoo rau Q235? Dab tsi yog qhov tseem ceeb sib txawv?
A: Muaj plaub qib: A, B, C, thiab D. Qhov sib txawv ntawm S thiab P cov ntsiab lus thiab cov kev xav tau ntawm kev cuam tshuam: A: Tsis muaj kev cuam tshuam; B: cuam tshuam lub zog ≥27J ntawm 20 degree; C: 0 degree; D: -20 degree. Cov ntsiab lus S thiab P txo qis zuj zus nrog txhua qib.
Q: Dab tsi yog qhov txwv siab tshaj rau S thiab P rau Q235A / B / C / D?
A: A: S≤0.050%, P≤0.045%; B: S≤0.045%, P≤0.045%; C: S≤0.040%, P≤0.040%; D: S≤0.035%, P≤0.035%.
Q: Dab tsi yog txoj cai tswj hwm tus lej sib koom ua ke rau Q235?
A: Nws pib nrog "U", xws li Q235B yog U12352.