The explosive welded C276 / Q345R bimetallic wear resistant plate needs heat treatment to eliminate the explosive stress, and the post explosive heat treatment process is often the decisive factor for the comprehensive quality of Hastelloy steel composite plate.
Explosive welding C276 / Q345R bimetallic wear resistant plate is widely used in aerospace, nuclear power engineering, military equipment and other key engineering fields due to its high corrosion resistance of Hastelloy C276 and strength of carbon steel Q345R.
The mechanical properties and corrosion resistance indexes of C276 / Q345R bimetallic wear resistant plate are higher than the standard values no matter it is annealed at 500 ~ 550 ℃ or normalized at 1120 ℃, which can meet the environmental requirements.
After normalizing at 1120 ℃, the interface microhardness of the composite plate is improved, which is close to the hardness of Q345R substrate, which is conducive to subsequent machining; However, the interface microhardness of the composite plate annealed at 500 ~ 550 ℃ is still high.
The best heat treatment process of C276 / Q345R explosive clad plate is 1120 ℃, 30 min / water cooling, which not only ensures that the clad plate has good mechanical properties, but also ensures that the corrosion resistance of the clad layer will not be lost.
