What is the carbon content range for SPCC?
C ≤ 0.15% (commonly ≤ 0.10%).
7. What are the upper limits (JIS) for major elements in SPCC?
C: ≤ 0.15%
Mn: ≤ 1.00%
P: ≤ 0.100%
S: ≤ 0.035%
Si: ≤ 0.05%
8. Why is sulfur and phosphorus control strict in SPCC?
To reduce inclusions, improve stamping/bending crack resistance, and enhance surface quality.
9. What are the compositional differences between SPCC and Q195?
SPCC has S ≤ 0.025% and P ≤ 0.035%; Q195 allows for a wider range (S ≤ 0.050%).
10. Does SPCC contain alloying elements?
No (Cr/Ni/Mo, etc.), it is a common carbon steel.