Parkerized?

[Marmidor]

What are yalls thoughts on a parkerized barrel? I have zero knowledge or experience on the subject. Thanks for any help.

 

[BSmitty]

Parkerizing is a method of protecting a steel surface from corrosion and increasing its resistance to wear through the application of a chemical phosphate conversion coating.

 

[BSmitty]

thats from google lol, Is this method an alternate for chrome lining barrels?

 

[FrommerStop]

thats from google lol, Is this method an alternate for chrome lining barrels?

No.
Google on chromium

Current medium caliber gun barrels use chromium as a coating on their interior bore surfaces. This coating protects the bore surface against the harsh environment of the hot propellant gases and the mechanical effects of the projectile, thereby increasing the life of the gun tube.

Do not pakerize the bore

Now, what if you're parkerizing something and you want to avoid parkerizing some part of it? For example, an M1 Garand barrel and you don't want to parkerize the bore, chamber, and gas cylinder mounting surfaces?

Just keep the solution away from those surfaces. For the example of the M1 Garand barrel, use appropriately sized rubber stoppers in the muzzle and chamber, and electrical tape over any external surfaces to be protected.

How To Parkerize Steel

How to parkerize a gun or any steel object, applying an anti-corrosion and lubricating phosphatized surface treatment."

m1-garand-rifle.com

 

[wildrider666]

Parkerization is not a "coating", loosely refered to as a "finish". It's actually a "Chemical Treatment" that etches and modifies the metal surface. It produces a hard matte or dull finish. Since it does "etch" the surface, it could be considered a form of controlled corrosion that when naturalized stops the reaction. It then provides execellent corrosion and abrasion resistance and provides a strong base for lubricant retention.

It wasn't developed till WWII and its advantages during manufacture (replaced bluing & browing processes) and Field applications made it the go to treatment for small arms and thousands of metal components.