Hacksaw,
I appreciate your response but I'm not sure what is actually happening here.
I'm assuming you are saying there are geomagnetic fields, that if a truck load of steel bars passes through them, they can induce a magnetic field in the bars? Long round bars would probably more susceptible...
There are several methods for case hardening and each will have varying effects on the properties. In general, case hardening: increases hardness, increases strength and adds compressive stresses. Most times it is used to increase wear resistance and/or bending stength and/or torque strength...
Porosity, specifically shrink porosity, can be expected in cast components. The key is to let it form in non-critical areas or in other words manage it through design. There is one thing that is known about shink porosity and that is - it: alwyas, always, always, forms in the last place to...
Has anyone delt with, or heard of, 10 to 15ft long high speed steel bars picking up or becoming magnetic during transport from one facility to another? I'm being told that when a truck load of these bars leaves the distribution center they are checked for magnatism, on the truck, and it is not...
