Is phosphate coating good?
Is phosphate coating good?
Phosphate coating provides strong adhesion and corrosion protection, and also improves the friction properties of sliding components. Some of the threaded parts are treated with phosphate coatings, which improves their anti-galling and rust inhibiting characteristics.
What is a nitrided barrel?
Nitriding does not add a coating, rather, it changes the surface properties by diffusing nitrogen and carbon into the metal surface to yield an extremely smooth, uniform and wear-resistant bore. Chrome-lined barrels still need outer surface protection, normally achieved by some manner of Parkerization.
Which barrel finish is better nitride or phosphate?
A nitride exterior will protect the barrel longer than a phosphate exterior finish. However, a chrome-lined, or phosphate, barrel will hold up better to sustained fire than a nitride interior. Nitride has a slight edge in accuracy and price. However, phosphate coated/chrome lined barrels are more common.
Does phosphate coating prevent rust?
All phosphates are fairly porous, so they do not provide complete protection from rust. They serve primarily to provide a stable base for an additional process or coating. For additional protection from corrosion, oil is often applied over a phosphate coating.
Is phosphate better than nitride?
Are phosphate coated barrels good?
These coatings are porous and absorb oil and lubrication well by design. When used in conjunction with quality external oils, a phosphate coating will protect the external of the barrel from corrosion. But, you must lubricate phosphate finishes regularly to give that protection.
Is nitride BCG better than phosphate?
On the basis of performance, nitride wins. For nostalgia, phosphate wins. These two super hard finishes are both easy to clean workhorses that will take the punishment and come back for more. A chrome BCG will be significantly more difficult to find and more expensive when you do find one.
How do you apply phosphate coating?
A phosphate coating is usually obtained by applying to the steel part a dilute solution of phosphoric acid, possibly with soluble iron, zinc, and/or manganese salts. The solution may be applied by sponging, spraying, or immersion.
Why are barrels chrome lined?
While chrome lining offers superior corrosion resistance to various external weather conditions, it also serves to significantly reduce throat erosion, allowing shooters to enjoy sub-MOA accuracy potential for as much as 20,000 rounds of normal use with factory match ammunition.
What is the best metal for a rifle barrel?
Stainless Steels Stainless-steel barrels have become a popular choice for competition rifles, varmint rifles, all-weather rifles, combat handguns and marine shotguns. An especially popular stainless steel alloy used by many barrel makers is called 416R.