340PD Polished Titanium Cylinder

[ImprovedModel56Fan]

I think this was meant to keep bullets from pulling loose with recoil due to the light gun weight, not a material strength or finish issue.

Probably not. Bullet pull is worse with heavier bullets, not lighter ones. It's erosion that seems to be worse with lighter bullets. I'm not sure whether it's because of the powders used and velocity attained, or whether it it has to do with the length of the bullet and resulting reduced sealing of the cylinder-barrel gap when it matters. I'm sure that someone who actually knows will be along shortly to ascertain or even clarify the correct answer.

P.S. Looks like jimandsue60 types faster and writes better than I do.

 

[jimandsue60]

Probably not. Bullet pull is worse with heavier bullets, not lighter ones. It's erosion that seems to be worse with lighter bullets. I'm not sure whether it's because of the powders used and velocity attained, or whether it it has to do with the length of the bullet and resulting reduced sealing of the cylinder-barrel gap when it matters. I'm sure that someone who actually knows will be along shortly to ascertain or even clarify the correct answer.

P.S. Looks like jimandsue60 types faster and writes better than I do.

Great minds think alike !!

Jim

 

[jimandsue60]

I had my Ti cylinder coated with Diamond Kote. I don't worry about cleaning it any more as the power wipes off with an oiled rag.

Did you get a clear coat or one of the assorted colors they offer?

I would like to see some photos of it before and after if possible!!

Thanks

 

[107main]

I've always wondered why the U.S. Air Force can use titanium on many of their aircraft if it's so "fragile" and susceptible to burning. I actually thought the heat shields just aft of the jet nozzles on the F-4 Phantom were made of titanium.... Maybe I was wrong.

It is possible that Aircraft Ti is a different composition than these cylinders. My Dad was an aircraft mechanic. I needed some aluminum for a project that I was doing and asked him if he could get me a small piece and he did. I tried to drill it and I tried to saw it and quickly found out that the reason aircraft stay together is that this is not your normal aluminum. You can dull a cheap drill bit or saw blade. It really takes a carbide drill bit to drill it with any ease. Normal bits will dull quicklyl Also, I left that piece of aluminum out in the weather for years and it would get dirty, but did not corrode, at least to the eye. So, perhaps, Ti in aircraft grade is different too.

 

[JDBoardman]

Most aircraft alloy titanium (used for structural purposes) is Ti-6AL-4V, which is a titanium-aluminum-vanadium alloy It is very susceptable to sufate and halogen -induced corrosion, but is very heat resistant and stable in the atmosphere. There are several other titanium alloys used in aircraft, primarily in the jet engine components. Nickel superalloys (Nickel-iron-tungsten-ruthenium) are used in the turbine blades and vanes because they have better high temperature creep and strength, the titanium alloys are used in the compressor stages and the fan disks.

I have never understood the fascination with titanium for firearms. While it is stiffer and lighter than steel for a given strength, the weight savings is not that great, it is subject to high-velocity gas erosion, and it costs a lot more than steel.

And yes, titanium can be anodized; the process is similar to that used on aluminum, but it is much more critical as far as chemical controls, cleanliness and current quality are concerned. Instead of sulfuric acid anodizing as is used on aluminum, phosphoric acid solutions and trisodium phosphate baths are used. The colors formed when titanium is anodized are a function of the voltage and current density used.

 

[PA Guns & Ammo]

Most aircraft alloy titanium (used for structural purposes) is Ti-6AL-4V, which is a titanium-aluminum-vanadium alloy It is very susceptable to sufate and halogen -induced corrosion, but is very heat resistant and stable in the atmosphere. There are several other titanium alloys used in aircraft, primarily in the jet engine components. Nickel superalloys (Nickel-iron-tungsten-ruthenium) are used in the turbine blades and vanes because they have better high temperature creep and strength, the titanium alloys are used in the compressor stages and the fan disks.

I have never understood the fascination with titanium for firearms. While it is stiffer and lighter than steel for a given strength, the weight savings is not that great, it is subject to high-velocity gas erosion, and it costs a lot more than steel.

And yes, titanium can be anodized; the process is similar to that used on aluminum, but it is much more critical as far as chemical controls, cleanliness and current quality are concerned. Instead of sulfuric acid anodizing as is used on aluminum, phosphoric acid solutions and trisodium phosphate baths are used. The colors formed when titanium is anodized are a function of the voltage and current density used.

E=mc²

So basically if their is a coating on titanium, leave it alone. Sorry but I'm just a tad slow! LOL!

James