What are the deoxidation methods for Q235?
F: Rimmed steel
Z: Killed steel (commonly used)
TZ: Special killed steel (C/D grade)
Why is Q235B the most commonly used?
Best cost-performance ratio: Passes room temperature impact test, stable performance, moderate price, and easy to procure.
Can Q235 be used in pressure vessels?
C/D grade: Yes (must pass impact test); A/B grade: generally not used for pressure-bearing components.
Can Q235 be used in food processing machinery?
Yes, but polishing/passivation/food-grade coating is required to avoid rust contamination.
What are the turning properties of Q235?
Good, easy to cut, good chip breaking, and low tool wear.