Advanced High-Strength Steels (AHSS)

Advanced high-strength steels (AHSS) include DUAL-TEN^® (dual phase) steel and transformation induced plasticity (TRIP) steels. The minimum tensile strengths range from 500 to 800 MPa.  These steels are gaining popularity in automotive applications because they are easier to form than HSLA grades with similar initial yield strengths, but have a much higher final part strength.  

As a result, today's automobile manufacturers are increasingly using DUAL-TEN^®steel to reduce mass, reduce cost and improve crash energy management. In addition, these advanced high-strength steels are ideal for fatigue and durability sensitive parts or thin-gauge exposed panels that are subjected to denting loads. With proper design strategy, DUAL-TEN^® steels offer a great opportunity for part downgaging, body in white weight reduction, improvement of car fuel economy, and crash performance. 

Product Descriptions

DUAL-TEN® Steel    DUAL-TEN® - 590/600 Steel  DUAL-TEN® - 780/800 Steel

TRIP Steels    TRIP - 590/600 Steel  TRIP - 780/800 Steel

The unique characteristics of advanced high-strength steels are developed by a continuous heat treating process that creates martensite in the steel microstructure.  The amount of martensite, together with the amount of carbon, will determine the strength level of the steel. When compared to other grades, specifically high-strength, low-alloy steels, the classification for advanced high-strength steels are based on minimum tensile strength.