HRC is an abbreviation for hot rolled coil steel or an abbreviation for Rockwell Hardness of steel measured on the C scale. The abbreviation is used for both a type of steel and a futures contract for that steel traded on the New York Mercantile Exchange, Globex and Clearport.
Hot rolled coiled steel is used in the construction and automotive industries for the manufacture of pipes, vehicle parts and other engineering applications. Sheet metal, guard rails and railroad tracks are also commonly made from it. HRC steel futures trade under the symbol "HR" on all applicable markets and are recorded in United States dollars.Learn More
Fully killed steel is steel that has had all of its oxygen content removed and is typically combined with an agent before use in applications, such as casting. The four levels of steel kill include fully killed steel with all oxygen removed, semi-killed steel with the partial removal of oxygen, rimmed steel and capped steel.Full Answer >
After cleaning the steel, cover it in beeswax or another "ground" and carve the desired image out of the beeswax to expose the steel, then submerge the steel and beeswax in ferric chloride until the image has been corroded onto the surface of the steel. Depending on the hardness of the steel, different acids may be used for etching.Full Answer >
The standard sizes of steel studs are 8 feet to 12 feet by 1 1/2 inches and 3 1/2 inches. This approximates the dimensions of wood two-by-fours. Standard stud strength is 25-gauge steel.Full Answer >
The ratio of steel to concrete is 100:130 for 1 cubic meter. The ratio means that for every 130 kg of concrete, 100 kg of steel is needed to support the structure. This is a rule of thumb in civil engineering that must be observed at all times, as failure to observe it renders buildings prone to ductility and cracking.Full Answer >