Stainless steel is stronger, more durable, and more expensive than nibral. Stainless steel props typically have a higher top end than nibral propellers. (Back To Top)

Passivation is the treatment of stainless steel in a nitric acid or citric acid solution to remove iron contamination on the surface. The contamination is from fabrication such as stamping, drilling, machining, welding, cutting, forming or wire brushing. Passivation does not change the appearance of the stainless. If the stainless has been heat treated or welded, the resultant scale or discoloration must be removed by either abrasive methods or by pickling.

Answer: The first number is the amount of chromium that is contained in the stainless, i.e., 18 is 18% chromium. The second number is the amount of nickel, i.e., 8 stands for 8% nickel. So 18/8 means that this stainless steel contains 18% chromium and 8% nickel. 18/10 is 18% chromium and 10% nickel. The higher the numbers the more corrosion resistant the material. 18/0 is a misleading designation.

Ceramic is generally thought to contain heat better than regular steel, thus keeping the hot gases moving through the exhaust system faster. However, a chip or abuse of the header may result in chips in the protective coating, exposing the steel underneath to water and corrosion which may lead to rust. The steel underneath the ceramic coating is generally mild grade steel. Although this is great in California, it's not that great up North.

Stainless steel is the standard material for a Muzzy exhaust system. In most cases a stainless steel system weighs about 12 pounds. The optional material, titanium weighs a little over half as much as steel yet is stronger. The average weight of a titanium system is about 7.5 pounds. For comparison, stock systems can weight from 20 to 35 pounds. Generally the design is the same for both the titanium or stainless steel, so the power output is the same as well.

Stainless Steel lasts longest, followed by Rhodium and then Gold. Gold tends to tarnish after time. Also, Gold is used to tonify (+), while Stainless Steel is neutral.

Compared to plain carbon steel, stainless steels (there are more than 300 grades) contain at least 12% Chromium - a metal that is intrinsically corrosion resistant. Because of this alloying, stainless steels form a tightly-adherent and protective oxide layer which is so thin that the metallic coloration of the underlying steel is visible. The oxide layer that forms in ambient environments on plain carbon steels (i.e.

Both materials have the same performance characteristics. The main differences (besides price) are in, corrosion resistance, and appearance. Aluminized steel exhausts are inexpensive, but tend to corrode much more quickly than stainless steel. Aluminized steel is best suited to vehicles in warm, dry climates, where they won't be exposed to rain, snow, or salt. Even then aluminized system rust out from the inside due to condensation. Bassani Xhaust Stainless steel systems are top of the line.

is another way of referring to 304 stainless and similar alloys (301, 302, etc.). The 18-8 refers to the 18% Chromium and 8% Nickel content of 304 (see the table above), with no more than 0.08% Carbon.

This is not a skill everyone can acquire. Thin stainless can be spot-welded which is suitable for the combustion chamber and case. The NGV assembly will require MIG or TIG welding. TIG sets are expensive and it may be necessary to find a specialist welder used to welding stainless steel to do the welding for you. Modern engines employ a casting for the NGV which is more stable during natural heat cycling.

Nibral is an alloy of nickel, bronze, and aluminum. It is stronger than bronze, but not as strong as stainless steel. Most propellers for tournament inboards are made of nibral. (Back To Top)

The different ASTM standards apply to each method of manufacturing. As standard practice, we control the amount of ferrite content in material namely: 12%, 0.5% and <3%; for casting, forging and wrought, respectively. Top

has a greater percentage of Nickel content, which lends to the luster of the finish. Overall there is not a vast difference in the quality between 18/10 and 18/8 flatware.