Savol: SPCC ning odatiy tarkibi qanday?
A (wt%): C 0,12 dan kichik yoki teng, Mn 0,50 dan kichik yoki teng, P 0,035 dan kichik yoki teng, S 0,025 dan kichik yoki teng, Alt 0,020 dan katta yoki teng.
Savol: Yuqori va past uglerodli tarkibning ta'siri qanday?
Javob: Past C → yaxshi plastika, oson shtamplash, yaxshi payvandlanish qobiliyati; Yuqori C → kuch va qattiqlik, mo'rtlik ortdi.
Savol: SPCC past-uglerodli po'latmi?
Javob: Ha, C 0,12% dan kam yoki unga teng, odatda 0,05–0,10%.
Savol: SPCCda alyuminiyning roli qanday?
Javob: Deoksidlanish, donni tozalash, shtamplashning mustahkamligini oshirish va qarish mo'rtlashuvining oldini olish.
Savol: SPCC ning rentabellik kuchi qanday?
Javob: 140–280 MPa (odatda taxminan 210 MPa).