Key traits
- Medium carbon
- Shafts
- Heat-treatable
Steel
AKA: 1045 / C45
1045 / C45 medium-carbon steel — stronger than mild steel; common for shafts; heat-treatable.

Grade and lead follow the quote options. Call out critical tolerances, temper, and masking on the drawing/notes. Material certs selectable on the quote.
Upload CAD with this grade preselected — set finish and inspection on the quote.