Innovative AHSS Products from AK Steel

Coated Bake Hard 440 provides light weighting opportunities for  surface- - critical applications

Next Generation AHSS 1000 and 1200 with improved elongations over Dual Phase steels with equivalent strength

NITRONIC ? ? 30 existing stainless steel grade with optimized cost, good formability, high strength, corrosion resistant and premium surface finish

NanoSteel NXG? 1200 3 rd generation AHSS, for high strength and great formability in multiple applications

Light Weighting Case Studies

Review 5 case studies:

? CS1: BH440 Exposed Door Study

? CS2: Full Size Truck on Frame Front Structure

? CS3: B-Size Sedan Door Ring Study

? CS4: B-Sized Sedan PHS vs Cold Stamping

? CS5: C Size Sedan Small Offset Rigid Barrier (SORB) Considerations:

? Only major load cases are evaluated

? All parts are reviewed for stamping feasibility

? Other load cases will affect results

? More savings can be achieved if materials are considered early in the design process

Results:

? Reduce mass of the selected parts by  29.2  kgs

? Stamping feasibility complete

? Meets front crash requirements

? Plan for reducing torsional rigidity effects

Product Highlights

Applications of Next Generation, BH440 and NanoSteel

? Energy absorbing parts

? Parts needing improved formability and high strength

? Part consolidation

? Extremely high strength parts

? Mass reduction? Exposed panel mass reduction

Ongoing customer projects to:

? Fully implement with other load case considerations

? Durability

? NVH

? Crash

? Local loading requirements