Titanium is a very strong, light, hard metal. When heated It is still light and hard , but it doesnt resist erosion well in that state. Or as it is offficialy known as, Oxidatiion. Its fine on a bolt gun. Youll never get a can hot enough to make a bit of difference, or fire it fast enough for that matter. Youve said that you got the cans white hot. Id like to see a picture of the blast baffle of those cans. It probably looks pretty bad. The oxidation of titanium in extreme temperatures was known a long time ago. Its why NASA decided to use Inconel in the shuttle engine parts that would recieve the most heat. Over half of its parts are made of Inconel 718. Grade 1 untreated Titanium is good up to around 600 degrees. Grade 5 is good to 900. Keep in mind that one rapid mag dump will put your can into the 600-800 degrees farenheit range. Thats hardly white hot. Inconel 718 is a heat treated alloy composed of at least 50% nickel. It is rated to handle 1300 degrees F for extended periods of time without significant loss in yield strength, or weight loss due to oxidation. Inconel is what is used in many name brand silencers including KAC, Surefire, AAC, SWR, and Gem-tech just to name a few. Jet is 100 percent Ti and I dont even know what grade. Titanium has been proven it is not a satisfactory high temp metal. If you dont believe me just read the numbers.
The one to pay attention to is Tensile strength, or yield.
Inconel 718
http://www.hightempmetals.com/techda...nel718data.php
Pure Titanium, as it comes out of the ground.
http://asm.matweb.com/search/Specifi...bassnum=MTU021
Grade 5 Ti that is not heat treated.
http://www.supraalloys.com/astm_grades.htm
Grade 5 Ti that has been solution(heat) treated and aged.
http://asm.matweb.com/search/Specifi...bassnum=MTP642