Evaluations of Ed and suggestion of Metengr are right. But, do you think it wouild useful to know which kind of Ni-alloy ( or ASS ) are you reffering ?
General speaking ,temperature of 2400 F for most kind of Ni-alloy is exagerated and close to melting (2550-2600 ). At first plastic deformation at/ or high strain rate , de-coesion will happen due to oveheating: not only slivers at corners but also burst in centre of billet.
In case of ASS, temperature 2300 F is still enough high. Slivers may depend on Ferrite% or low melting elements( as Pb,Sb,Sn and so on )
Therefore, which grade is involved ?