Post by: Sabotloader on July 05, 2019, 04:10:23 PM
(https://i.postimg.cc/kgZWpVy1/Lehigh-S7-11-Nipple.jpg)
Now I have a really good reason to go out and shoot another range session. I really need to test the nipple... Just gotta find the time and the temperature...
Post by: sagerat on July 05, 2019, 08:43:44 PM
Post by: Sabotloader on July 05, 2019, 09:04:34 PM
Nice, looking forward to a report on the “indestructible” claim.
Whoops! maybe I went to far there with that claim!!!
But the new metal Lehigh chose to use is S7 steel and from what I can find on the net it should last longer than anything I have been using.
S7 Shock-Resisting Tool Steel
S7 Shock-Resisting Tool Steel is an air or oil hardening tool steel that is characterized by very high impact toughness. The combination of strength and high toughness makes it a candidate for a wide variety of tooling applications. It can be used successfully for both cold and hot work applications. Also suitable for hot work tools where the operating temperature does not exceed 1000°F (538°C). For plastic injection molds, S7 tool steel is available as a remelted, mold-quality product. The remelting process minimizes the number and sizes of nonmetallic inclusions in the steel, and thereby enhances the polishability for critical cavity, insert, and other tooling surfaces.
So according to this and what I can find the shock of the hammer hitting should be minimal as compared to what it is designed to handle..
Time will tell....