What's the biggest difference between Q235A and B?
B is tested for room temperature impact, while A is tested for no impact.
What are the characteristics of Q235C?
It's tested for 0℃ impact and has lower impurities.
What are the characteristics of Q235D?
It's tested for -20℃ impact and has good low-temperature toughness.
Which grade is most commonly used?
Q235B.
Can Q235A be used in load-bearing structures?
It's suitable for non-critical structures, but not recommended for critical structures.