Chromoly Vs Mild Steel Price

Chromoly vs titanium or carbon fiber.

Chromoly vs mild steel price.

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. The first and most often heard myth is that chromoly is lighter than mild steel this is terribly incorrect. The mechanical properties of the docol 800 dp tubes are very similar to the 4130 chrome moly tubes. Chrome moly is the abbreviation for chromium molybdenum and it is an alloy steel.

4130 chromoly tubing also has a smooth interior and exterior finish that resists scaling and oxidation. For all measurable purposes 4130 and 1018 weigh the same at 491 lbs. 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. 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.

Far higher in price than steel or aluminum are more exotic materials such as titanium and carbon fiber. Given the same o d. It was designed for and is used extensively in the aircraft industry due to it s high tensile. And wall thickness a chrome moly tube weighs the same as a mild steel tube.

The docol tubes showed a better behavior at fracture compared to the crmo tubes. The docol tubes have slightly lower yield strength but higher tensile strength. 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. 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.

The addition of chromium to steel improves strength and corrosion resistance and the molybdenum increases material toughness. Also steel is reliable. It fails in a predictable way bending before it breaks. Aluminum on the other hand is more like glass which breaks before it bends.