High-yield strength steel quenched and tempered
Typical values (weight %).
|C||Si||Mn||P||S||Cr||Ni||Mo||V + Nb||B|
|≤ 0.20||≤ 0.80||≤ 1.70||≤ 0.02||≤ 0.001||≤ 1.50||≤ 2.0||≤ 0.70||≤ 0.10||≤ 0.005|
Mechanical properties in delivery conditions
Mechanical and technological properties in the delivery condition. Tensile test at room temperaturetransverse test specimens.
|Thickness (mm)||YS (MPa)||UTS (MPa)||E (%)|
|≤ 50||890||940 - 1100||12|
|50 - 80||850||900 - 1100||12|
|80 - 100||830||880 - 1100||12|
Cold bending: Cold forming of IMEX 900 should be carried out according to the following recommendations:
|Internal minimum radius||V block opening minimum|
|Transversal||3 x th||9 x th|
|Longitudinal||4 x th||12 x th|
This grade is not suitable for hot forming.
For flame cutting, the following minimum preheating temperatures are recommended: 50 °C for plate thickness up to 25 mm, 100 °C for plates thickness up to 50 mm and 150 °C for thicker plates.
This material is particularly used in welded steel structures in mechanical manufactured items, plant constructions, and chassis.