Bake hardening steels
Bake hardening steels are sheet steels designed to develop additional strength during the paint-baking cycle after forming. They combine good formability during pressing with improved resistance to dents in finished automotive body panels and other formed sheet components.
| Grade | Material no. | C | Al | Si | P | S | Mn |
|---|---|---|---|---|---|---|---|
| H 180 B | 1.0395 | ≤0,05 | ≥0,015 | ≤0,50 | 0,06 | 0,025 | ≤0,70 |
| H 220 B | 1.0396 | ≤0,06 | ≥0,015 | ≤0,50 | 0,08 | 0,025 | ≤0,70 |
| H 260 B | 1.0400 | ≤0,08 | ≥0,015 | ≤0,50 | 0,1 | 0,025 | ≤0,70 |
| H 300 B | 1.0444 | ≤0,10 | ≥0,015 | ≤0,50 | 0,12 | 0,025 | ≤0,70 |
Standards covering this category
1Property ranges
1| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| rho | g/cm³ | 7.85 | 7.85 | 4 |
Derived from 4 grades in this category with a recorded value.
Composition range
6| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| C | % | 0.05 | 0.1 | 4 |
| Al | % | 0.015 | 0.015 | 4 |
| Si | % | 0.5 | 0.5 | 4 |
| P | % | 0.06 | 0.12 | 4 |
| S | % | 0.025 | 0.025 | 4 |
| Mn | % | 0.7 | 0.7 | 4 |
Derived from 4 grades in this category with a recorded value.