The angle of quenching plays an important role in the physical properties of steel. However, this angle is only significant for some forms of steel, such as carbon and low alloy steels. For example, for high strength low alloy steels, quenching at a large angle can result in a material that has very poor toughness and yield strength
In contrast, for low carbon steels (such as those used in stainless steel), the quench angle should be small because they are much less brittle than high carbon steels and require more heat treatment to achieve their required properties.
when forging metal does the angle of quench matter