4130 chromoly tubing also has a smooth interior and exterior finish that resists scaling and oxidation.
Chromoly vs mild steel price.
The addition of chromium to steel improves strength and corrosion resistance and the molybdenum increases material toughness.
Given the same o d.
The docol tubes have slightly lower yield strength but higher tensile strength.
Chromoly 4130 is a low alloy steel containing chromium molybdenum iron carbon and other alloying elements.
The docol tubes showed a better behavior at fracture compared to the crmo tubes.
It is from this view point that i will present facts to debunk some of the myths between 4130 chromoly and 1018 mild steel chopper frames.
It was designed for and is used extensively in the aircraft industry due to it s high tensile.
For all measurable purposes 4130 and 1018 weigh the same at 491 lbs.
Far higher in price than steel or aluminum are more exotic materials such as titanium and carbon fiber.
The chromium adds strength hardenability and a level of corrosion resistance to mild carbon steel though chromoly is not as corrosion resistant as stainless steel.
The elongation values of the docol tubes are better than in the 4130 chrom moly tubes.
Chromoloy tubing is made from a family of low alloy steels that contain chromium and molybdenum sae 4130 or 4140 along with the iron carbon and other elements.
Also steel is reliable.
It fails in a predictable way bending before it breaks.
A common misconception is that chrome moly is lighter than mild steel.
The mechanical properties of the docol 800 dp tubes are very similar to the 4130 chrome moly tubes.
Chromoly falls under the the aisi 41xx designations and it is important to be aware of the different properties and applications of chromoly steel when deciding which material you need.
Chromoly vs titanium or carbon fiber.
Chromoly steel is often used when more strength is required than that of mild carbon steel though it often comes at an increase in cost.
And wall thickness a chrome moly tube weighs the same as a mild steel tube.