Tailored Casting and Hot Rolling Temperatures for the Preparation of Hot Stamping Steel Thin Strip
摘要
Strip casting casts molten steel into thin strips, enabling direct hot rolling to produce products. A typical hot stamping steel thin strip was made by a strip casting simulator under tailored casting and hot rolling temperatures. The casting strip showed improved surface quality at a higher casting temperature (1597 °C) and a lower rolling temperature (900 °C), achieving 1275 MPa tensile strength with 12.3 pct elongation due to refined austenite grains transforming to martensite.