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Titanium Receivers
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<blockquote data-quote="James Jones" data-source="post: 177429" data-attributes="member: 8843"><p>Their is a big misconception that titanium is stronger than steel and this is both correct and incorrect , kinda like fluted barrel being stiffer than non fluted barrels.</p><p> </p><p> if you make an action out of titanium that is the exact same dimentions as the rem 700 made from Chrome moly the titanium reciever will NOT be stronger than the CM reciever , it will be lighter but not stronger.</p><p> </p><p> Now if you make a reciever out of titanium that is the same WEIGHT as the rem 700 CM reciever then it will be stronger but it will be a significant amout larger also.</p><p> </p><p>Grade 5 titanium that has been heat treated for maximum strentgh has a yield strength of about 110,000psi - 115,000 psi and at this point its a total pain in the *** to machine basicaly only alloing very high speed solid carbide tools.</p><p>4140 CM that has been heat treated to maximum strength has a yield strength of 100,000psi - 110,000psi and it machines better after its been heat threated.</p><p> </p><p>Now I kow your thinking that well you just typed that the titanium is stronger , and it is , on a weight to weight ratio meaning that 3 foot long titanium bar that WEIGHS 20lbs will be stronger than the same length bar made from CM but it will be alot bigger in diameter. If the part is going to be used in cryo temps around 200 degs below zero then the ti will take the lead in strength.</p><p> </p><p>So if you want an action that the same size as the stock remington 700 then the titanium action will not be the way to go , but if you wanta remington clone that the same weight as the stock rem then yea the ti will be great.</p><p> </p><p>you would actualy be better off making a scaled down action like those from New Ultra Lite Arms and make it out of a better alloy like 17-4PH that has a yield strength in the area of 150,000psi after heat treatment.</p><p> </p><p>7068 alloy aluminum is actualy very close in strength to both of those and its lighter in weight. 95,000psi -105,000psi but its yiel strenght is very close to its faliure strength so their will likely be no warning before a catrostrophic failure , where the Steels and the titanium will streach a little and give a very little warning first.</p><p> </p><p>I have a good bit of titanium bar stock around here that I've been using to build a couple silencers with and I'm not impressed with it that much at all. But trying to make the lightest most effecient can possible it is a great material for that job as their is not that much pressure involved.</p></blockquote><p></p>
[QUOTE="James Jones, post: 177429, member: 8843"] Their is a big misconception that titanium is stronger than steel and this is both correct and incorrect , kinda like fluted barrel being stiffer than non fluted barrels. if you make an action out of titanium that is the exact same dimentions as the rem 700 made from Chrome moly the titanium reciever will NOT be stronger than the CM reciever , it will be lighter but not stronger. Now if you make a reciever out of titanium that is the same WEIGHT as the rem 700 CM reciever then it will be stronger but it will be a significant amout larger also. Grade 5 titanium that has been heat treated for maximum strentgh has a yield strength of about 110,000psi - 115,000 psi and at this point its a total pain in the *** to machine basicaly only alloing very high speed solid carbide tools. 4140 CM that has been heat treated to maximum strength has a yield strength of 100,000psi - 110,000psi and it machines better after its been heat threated. Now I kow your thinking that well you just typed that the titanium is stronger , and it is , on a weight to weight ratio meaning that 3 foot long titanium bar that WEIGHS 20lbs will be stronger than the same length bar made from CM but it will be alot bigger in diameter. If the part is going to be used in cryo temps around 200 degs below zero then the ti will take the lead in strength. So if you want an action that the same size as the stock remington 700 then the titanium action will not be the way to go , but if you wanta remington clone that the same weight as the stock rem then yea the ti will be great. you would actualy be better off making a scaled down action like those from New Ultra Lite Arms and make it out of a better alloy like 17-4PH that has a yield strength in the area of 150,000psi after heat treatment. 7068 alloy aluminum is actualy very close in strength to both of those and its lighter in weight. 95,000psi -105,000psi but its yiel strenght is very close to its faliure strength so their will likely be no warning before a catrostrophic failure , where the Steels and the titanium will streach a little and give a very little warning first. I have a good bit of titanium bar stock around here that I've been using to build a couple silencers with and I'm not impressed with it that much at all. But trying to make the lightest most effecient can possible it is a great material for that job as their is not that much pressure involved. [/QUOTE]
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