Wall thickness is about one mm.
Chromoly steel is relatively lighter compared to other types of steel. It is known for its high strength-to-weight ratio, making it a popular choice for applications where both strength and weight are important considerations, such as in bicycle frames or roll cages for race cars.
Bicycle frames are sometimes made of materials such as steel, aluminum, carbon fiber, and titanium.
No
The EN14781 specialized standard for bicycle frames outlines specific requirements for materials, design, construction, and testing of bicycle frames. These requirements ensure that frames meet safety and performance standards for durability and strength.
The most common metal used for standard bicycle frames is steel, although it is possible to get frames made from graphite, aluminum, and titanium alloy.
Bicycle frames are sometimes made of an alloy that contains aluminum and vanadium.
Generally speaking aluminum frames have larger diameter tubes than steel or titanium bikes, but the most obvious is to test with a magnet. If it sticks it's a steel frame. If it doesn't it's probably aluminum. Titanium frames are still so rare that you are very unlikely to buy one w/o knowing.
The glass typically used in picture frames is about 2mm to 3mm thick.
Motobecane frames are made by Kinesis in Taiwan. Kinesis also makes the bicycle frames for Jamis, Specialized, Schwinn, Felt, and other well known bicycle brands.
Magnesium, Titanium
The most durable and lightweight materials used in manufacturing bicycle frames are carbon fiber and titanium.
Oh sure. Carbon fiber frames are composites, and quite popular.