Case studies

TNP D2 die vs Indian M2 circular die for hard thread rolling

The below are the results reported by a new customer in April 2012.

This customer rolls 8.8 grade blanks of about 30 HRC hardness.  These are unheaded auto parts.

The material is a regular medium carbon steel suitable for the above 10B21 or similar.

Both the Die sizes in the below were OD x width mm (actual OD 115.774) of 120x40mm.

 TNP dieThe #1 Indian supplier's die
Die material D2 M2 
Die cost (as a ratio) 100 150
Die life400,000125,000

The per piece cost of the TNP die is approx 5 times lower than that of the Indian M2 die.

Please contact us today to see how we can help with your unique rolling needs.