Sheet metal · aluminum
6061-T6 aluminum bend allowance estimators
Heat-treated alloy that usually needs a larger inside bend radius.
K-factor 0.380Min radius factor 3TTonnage 0.75× mild steelSupplier verification required
| Gauge | Nominal thickness | Prefilled calculator |
|---|---|---|
| 22 ga | 0.0253 in / 0.643 mm | 22-gauge bend allowance estimator |
| 20 ga | 0.032 in / 0.813 mm | 20-gauge bend allowance estimator |
| 18 ga | 0.0403 in / 1.024 mm | 18-gauge bend allowance estimator |
| 16 ga | 0.0508 in / 1.29 mm | 16-gauge bend allowance estimator |
| 14 ga | 0.0641 in / 1.628 mm | 14-gauge bend allowance estimator |
| 12 ga | 0.0808 in / 2.052 mm | 12-gauge bend allowance estimator |
| 10 ga | 0.1019 in / 2.588 mm | 10-gauge bend allowance estimator |
Assumptions
Verify before production
These links use nominal material-specific gauge thicknesses and BendMath default forming assumptions. Confirm bend deduction, springback, tooling capacity, grain direction, and material condition with supplier data and a shop test bend.
Default K-factor, minimum-radius factor, and tonnage multiplier for 6061-T6 aluminum are starting estimates. See /reference/data-sources/ for provenance.