Advanced High Strength Steel Roll Forming Material Guide: AHSS Grades, Coil Sizes & Properties
Advanced High Strength Steel Roll Forming Material
1. Overview of Advanced High Strength Steel in Roll Forming
Advanced High Strength Steel (AHSS) is a category of modern steels engineered to provide exceptional strength, energy absorption, and weight reduction. It is widely used in automotive and structural applications where performance and safety are critical.
In roll forming, AHSS is used for automotive components, structural reinforcements, crash systems, and high-strength profiles. It enables thinner materials to be used while maintaining or improving strength.
Compared to HSLA steel, AHSS offers significantly higher strength but requires more advanced forming techniques.
2. Material Composition & Structure
AHSS steels are designed using advanced metallurgical processes and typically include:
- Iron base metal
- Alloying elements such as:
- Manganese
- Silicon
- Chromium
- Carbon
Common AHSS Types
- Dual Phase (DP) steels
- TRIP steels (Transformation-Induced Plasticity)
- Martensitic steels
- Complex Phase steels
Structure
- Multi-phase microstructure
- Combination of soft and hard phases
- High strength with controlled ductility
3. Available Coil Specifications
Thickness Range
- 0.6mm – 4.0mm
Coil Width
- 600mm – 1500mm
Coil Weight
- 3 tons – 15 tons
Coil ID / OD
- ID: 508mm / 610mm
- OD: up to 1800mm
Tolerance
- High precision thickness control
- Consistent mechanical properties
4. Mechanical Properties
Typical values (vary widely by grade):
- Yield Strength: 500 – 1200 MPa
- Tensile Strength: 700 – 1600 MPa
- Elongation: 5% – 25%
- Hardness: 200 – 500 HB
5. Coating Types (If Applicable)
AHSS steel may be supplied as:
- Uncoated
- Galvanized AHSS
- Galvannealed AHSS
- Painted AHSS
6. Surface Finishes
- Mill finish
- Pickled and oiled
- Galvanized
- Coated finishes
7. Common Roll Forming Applications
- Automotive structural components
- Crash beams and reinforcements
- Safety structures
- Industrial structural profiles
- Heavy-duty frames
- Transportation components
8. Advantages of AHSS Steel
- Extremely high strength
- Weight reduction potential
- Excellent energy absorption
- Improved safety performance
- High durability
9. Disadvantages / Limitations
- Difficult to form
- High forming forces required
- Increased tool wear
- Limited formability in complex shapes
- Higher cost than standard steels
10. Roll Forming Machine Considerations
Roll Tooling
- Heavy-duty hardened tooling (D2 / carbide)
- More forming stations required
Speed
- 5–20 m/min
Lubrication
- Essential
Cutting
- High-strength blades required
- Flying shear or laser cutting
Common Issues
- Springback
- Cracking
- Tool wear
- Dimensional control challenges
11. Common Problems in Production
- Springback affecting accuracy
- Edge cracking in tight bends
- High tool wear
- Material fracture if overformed
- Increased energy consumption
12. Pricing Guide
Typical global pricing:
- Low: $1000–$1400 per ton
- Medium: $1400–$2000 per ton
- High: $2000–$3000+ per ton
Factors affecting price:
- Grade (DP, TRIP, martensitic)
- Strength level
- Coating
- Thickness
13. Comparison with Other Materials
AHSS vs HSLA Steel
- AHSS = much stronger
- HSLA = easier to form
AHSS vs Mild Steel
- AHSS = higher strength, thinner material
- Mild steel = easier processing
AHSS vs Aluminum
- AHSS = stronger
- Aluminum = lighter
14. Best Industries Using AHSS Steel
- Automotive manufacturing
- Transportation equipment
- Industrial engineering
- Heavy machinery
- Structural fabrication
15. How to Choose AHSS Steel
Choose AHSS When:
- Maximum strength required
- Weight reduction needed
- Safety-critical applications
- High-performance structures
Avoid When:
- Complex forming required
- Lower-cost material needed
- Standard applications
16. FAQ Section
What is AHSS steel?
A high-performance steel with advanced strength properties.
Is AHSS stronger than HSLA?
Yes, significantly stronger.
Can AHSS be roll formed?
Yes, but requires advanced setup.
Why is AHSS used in automotive?
For safety and weight reduction.
Does AHSS rust?
Yes, unless coated.
17. Machine Matcher Section
We supply roll forming machines for all material types including AHSS steel.
- Custom-built machines to your profile
- New machines built to specification
- Global delivery available
- UK and USA technical support
Contact:
Machine Matcher
Sales & Technical Team
Quick Specs
Thickness
0.6–4.0mm
Yield Strength
500–1200 MPa
Coil Width
600–1500mm
Coil ID
508 / 610mm