Launch Of A New Class of 3 rd Generation Cold Formable AHSS

NanoSteel’s Advanced High-Strength Sheet steels are designed for production in conventional steel mills using existing technology.

NanoSteel 3 rd Generation AHSS Technology

Performance Characteristics

Novel Performance Characteristics

Controlled by:
• Hole Preparation e.g. die clearance, punch geometry
• Global Materials Properties: e.g Total elongation, UTS, post uniform elongation

• Microstructure response to stress adds additional optimization variable

Drawing Conditions
• Cups drawn to LDR at 1.9 draw ratio
• Cups exposed to 100% hydrogen for 45 minutes
• Exposed cups monitored in air for over 6 months

• Exposure to hydrogen for 10 minutes after each incremental 5% increase in strain
• Samples exposed to 100% hydrogen while under load for 45 minutes
• Clamped for >100 hours after exposure without cracking

o NanoSteel 3 rd Generation AHSS Technology
• Initial product delivered for OEM testing at 60,000 MPa%
• Enabled due to unique structures and mechanisms
o Compelling Performance Characteristics
• Strength & ductility combination
• Bend ability with low R/t ratio
• Bi-axial performance with high Limiting Dome Height
• Superior Forming Limit Diagram
o Novel Performance Enabled by Specific Microstructural Response to Stress
• High local formability for Hole Expansion
• Avoidance of hydrogen assisted delayed cracking resistance at LDR