... 55-3, St 55-3U, St 55-3N steel plate, St 55-3, St 55-3U, St 55-3N steel price, St 55-3, St 55-3U, St 55 ... DIN17100 Steel grade: DIN17100 St 55-3, St 55-3U, St 55-3N St 55-3, St 55-3U, St 55-3N steel Dimension: Thickness: 5 ... , or Normalized. DIN17100 St 55-3, St 55-3U, St 55-3N steel chemical analysis -% by mass: St 55-3 C: 0.24 Mn ... : 1.60 P: 0.045 S: 0.045 Si:0.55 St 55-3N ...