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For several months now I have written articles which are bits of advice that I hope can be used to improve a process issue, but this month I want to pass on an experience that happened to me [...]

The most common base material that extrusion, blow molding and injection screws are manufactured out of is 4140 HT Steel at a 28-32 Rc condition. This grade of 4140 has a yield strength of 95-100 [...]