Q: Cov tshuaj muaj pes tsawg leeg ntawm SPCC yog dab tsi?
A: C≤0.12%, Mn≤0.50%, P≤0.035%, S≤0.035%, Si≤0.05%, Al≥0.02% (tua hlau).
Q: Dab tsi yog qhov ntau ntawm cov khoom siv kho tshuab ntawm SPCC?
A: Tensile zog 270-410MPa, yield zog ≥180MPa, elongation ≥34% (tus qauv quenching thiab tempering); qhov nyuaj ntawm kev npau taws, qhov siab dua lub zog tawm los thiab qis dua qhov elongation.
Q: Yuav ua li cas xaiv cov kev kub ntxhov sib txawv?
A: Siv A (annealed nkaus xwb) lossis S rau kev kos duab sib sib zog nqus; siv 1/8 nyuaj rau kev khoov dav dav / kos duab ntiav; siv 1/4 nyuaj rau 1 nyuaj rau siab -qhov muaj zog.
Q: Dab tsi yog qhov weldability ntawm SPCC?
A: Nws cov ntsiab lus carbon tsawg ua rau nws zoo heev weldable, haum rau arc vuam thiab kuj vuam; tsawg kawg ncej-weld deformation, tsis tas yuav tsum tau preheating (phaj thickness<6mm). Q: What is the hardness range of SPCC?
A: Txheem tempered hardness HV≈60-80; 1/2 hardness HV≈100-130; 1 hardness HV≈140-170 (Vickers hardness).