fyH and fyS become a grade per prefix (D · H · S), chosen from SD300 · SD400 · SD500. The defaults are the P1 values, so the P1 results do not change. Each bar takes its grade from its 규격 (fyOf). The 철근표 has a 강도 column. Older files that stored fyH / fyS are read into the grade map. Only fck is still an assumed value (I02). Approved 2026-10-23. Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>