Do you want any logistics service, then call us: +86-371-86151827
Mechanical properties of SMA400AW bridge weathering steel, Q420qENH steel plate:The thickness of Q420qENH is not more than 50mm, the yield strength is not less than 420MPa, the tensile strength is not less than 540, and the elongation is not less than 19%.The thickness of Q420qENH is 50mm-100mm, the yield strength is not less than 410MPa, the tensile strength is not less than 410, and the elongation is not less than 19%.
The characteristic of niobium in SMA400AW bridge weathering steel etc. steel material is to increase the recrystallization temperature of austenite, so as to achieve the purpose of refining austenite grains. In general, the amount of niobium added in steel material is less than 0.05%, and the contribution of niobium above 0.05% to strengthening and toughening will no longer be obvious.
As a leading international SMA400AW bridge weathering steel steel supplier, we have two warehouses, close to Tianjin port and Shanghai port. This superior geographical location effectively saves the domestic transportation cost and greatly improves our service level. At the same time, it also shortens our delivery time and provides more convenience for customers.
Quenching is a heat treatment process in which steel parts are heated to above the critical temperature, and after proper heat preservation, the parts are quickly cooled to room temperature in water or oil, so that martensite transformation occurs. The hardness of the quenched SMA400AW bridge weathering steel increases sharply. Quenching is to prepare the organization for adjusting and improving the performance of SMA400AW bridge weathering steel during tempering, while tempering determines the performance and life of the workpiece.