Although there are a number of cranes and hoists that make use of aluminum due to the metal’s combination and strength and lightness, when it comes to handling very heavy loads then steel is the manufacturing material of choice. In fact, not only is stainless steel used for the majority of bridge crane manufacture – but for those jobs at the top of the scale when it comes to the requirement for a crane that is not only tough and durable but can also handle truly mammoth loads then a special type of steel is called for.
This is the so-called ‘carbon steel’. This steel gets its strength from its incredibly pure nature. Carbon steel has less than 2% of the metals that usually are still found in normal steel. This allows for the production of metal with incredible tensile strength. It is worth mentioning that the strength of carbon steel used in the manufacture of bridge cranes(grua tipo puente) is largely a function of the carbon content of that steel.
As a rule of thumb the lower the carbon content of the finished steel the stronger it will be. Of course, businesses wishing to invest in the highest qualities of carbon steel will be paying a premium – however, they will be receiving equipment that will last decades with proper maintenance – and will have access to a bridge crane that can tolerate the most demanding of conditions – and handle the heaviest of loads. For instance, cranes(puente grua monorail) using the highest quality of carbon steel are in widespread use in the mining and shipping logistics industries.
The amount of carbon in this type of steel varies from 0.015% to more than 0.5%. Steel with relatively low amounts of carbon present is known within the manufacturing industry as ‘high-strength low-alloy (HSLA) steel’. However, it is not only the low carbon content of this steel that makes it not only strong enough to lift extreme loads but also extremely corrosion resistant. Manufacturers add carefully calculated amounts of additives such as chromium, titanium, nickel, molybdenum, vanadium, and niobium in order to ensure that the bridge cranes manufactured from high-carbon steel provide an excellent return on investment for the companies that are willing to invest large amounts of capital in equipment such as the cranes manufactured using this expensive metal.
The fact that this high-strength low-alloy steel is easier to weld than other types of high-carbon steel is one of its attractions when it comes to manufacturing bridge cranes(puente grúa birriel) capable of handling a variety of different types of loads – and the many models that are required to cope with a variety of different environments and demands.
However, the type of steel that is used for the manufacture of heavy-duty bridge cranes is only part of the process to ensure that they are fit for purpose. Special welding techniques need to be sued – and inspection of material and welds is of the utmost importance in ensuring that the cranes will perform as per specification and will conform to globally accepted safety standards.
These various steps provide the purchaser with that essential peace of mind when it comes to making a large investment in a piece of equipment that is designed to increase the efficiency of an operation and therefore directly impact the bottom line.
Continued: https://aicrane.cl