1. Rimmed carbon steel
Deoxidation degree: Incomplete deoxidation
Characteristic: Low cost, but the composition is uneven, easy to age hardening
Application scenarios: Common structural parts, wrought iron products.
Brand example: Q195、Q215
2. Killed carbon steel
Deoxidation degree: Complete deoxidation
Characteristic: Uniform structure, stable performance, high quality
Application scenarios: Precision parts, bearings, gears
Brand example: 45#、40Cr
3. Balanced carbon steel
Deoxidation degree: Partial deoxidation
Characteristic: Performance is in between and cost is moderate
Application scenarios: General machine parts
Brand example: 10#、20#
