We buy our AISI 4140 material from two different suppliers.
For one particular application we are trying to make a component induction case hardened (since we have the induction machine in house) instead of fully quenched and tempered (which is how we do it today, with a heat treatment...
Hello guys,
Has anyone had problems on nitriding cast iron, regarding hardness of the layer?
We currently gas nitride some parts made of GGG-50 to a hardness of 650HV. In some cases the entire lot of pieces comes with low hardness (~350-450HV).
Our supplier says (we don't nitride in house) that...
Hello,
Has someone attempted do carburize astm A-216 WCB (GS-C25)?
Would it be possible to reach around 58 HRC surface hardness with this steel?
I'm doubtful due to it's carbon content being 0,3%.
Thanks in advance!
Hello,
Does anyone have a good material on induction hardening parameters to recomend?
Preferably something more practical. What we need exactly is a relation between material, diameter, power, frequency and hardness. Could be a table, chart or even a formula so we can use to improve our...
Hello,
We are induction hardening rotors made of SAE 4140 and we are having problems with warping. Most of the rotors are long and have small diameter(for example 70mm diameter and 1000mm long), but it also happens in the ones with smaller D/L ratio.
The material is recieved as bar stock and...
