May. 06, 2024
Energy
The lifting and rigging equipment industry was worth $72.04 billion in 2020, and it is likely to reach $96.11 Billion by 2028. One of the most popular rigging equipment is the galvanized wire ropes. They are an excellent rigging and lifting hardware choice. But they may not always be a suitable option for your rigging and lifting needs.
Contact us to discuss your requirements of customized galvanized steel ropes. Our experienced sales team can help you identify the options that best suit your needs.
And you would be better able to decide when to use it if you know what questions to ask. Let’s discuss a few galvanized wire rope FAQs that will help you make an informed decision.
A galvanized wire rope is nothing but a galvanized steel wire. The Galvanization process includes applying a protective zinc coating to the steel wire rope. The most common method is hot-dip galvanization, where the wire rope gets dipped in a bath of hot, molten zinc. The layer of zinc protects the wire rope from rust and corrosion.
The purpose of galvanization is to prevent the wire rope from rusting and corrosion. So, the foremost benefit of a galvanized wire rope is that it has twenty times the lifespan of a non-galvanized wire rope. This means you can use it without replacement for a long time, saving money in the long run.
Although galvanized wire rope offers excellent corrosion resistance, it isn’t as strong as its non-galvanized counterpart. These wire ropes often have lower tensile strength than uncoated steel wire ropes. In other words, they have poor resistance to bending deformation.
It’s better to keep the original packing intact unless you want to use the galvanized wire rope. The original packaging will protect it from environmental damage. The coating may have corrosion-resistant properties, but you will still need to store the galvanized wire rope in a dry, cool, and dark place. This prevents the zinc coating from oxidation.
Galvanized wire ropes have good rust resistance, but due to low tensile strength, they are often not used for applications in harsh environments. They are best suited for daily applications such as corralling cattle, tying up felled logs, attaching cables to heavy machinery, and hoisting equipment to a crane.
The galvanized wire rope specifications often describe the number of wires in each strand and the number of strands in the whole rope. The first number indicates the number of strands, while the second describes the number of wires in each strand.
So, in a 7×19 cable, you will see seven strands, each with 19 wires. Most galvanized wire rope suppliers have three popular classifications, including 1×19, 7×7, and 7×19 cables. Your choice will depend on the type of your application.
The diameter will specify the size of a galvanized wire rope. The standard galvanized steel wire rope is 6 to 7 mm in diameter. It often gets shipped in long strands or coils. However, you may ask your galvanized wire rope supplier to provide a custom-made wire rope.
The tensile strength of each galvanized steel wire rope will vary depending on its specifications. However, it will always be lower than a non-coated wire rope. The zinc coating often makes a galvanized wire rope stiffer.
The weight of a galvanized steel wire rope will vary based on its diameter. As you can imagine, the bigger the diameter, the heavier the wire rope. The standard unit of specifying the weight of a galvanized wire rope is kilograms/meters. You can ask your galvanized wire rope supplier about these specifications before placing your order.
Galvanized wire rope is corrosion resistant, not corrosion immune. These ropes can stand a lot of wear and tear. However, galvanized wire ropes are still unsuited for harsh environments. Exposing galvanized wire rope to saltwater can cause it to corrode. If you want to use the rope in saltwater conditions, it’s better to switch to steel cables.
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As the name suggests, the galvanized wire rope is a steel wire rope coated with zinc. While this coating increases its corrosion resistance, it makes a galvanized rope more brittle and stiff. On the other hand, the steel wire rope comes with a coat of plasticizers that offer better tensile strength. That’s why stainless steel wire rope is more suitable for marine applications.
Keeping your galvanized wire rope clean can significantly improve its lifespan. Cleaning keeps moisture, dirt, and dust away from the wire rope. The best way to clean a galvanized rope is to use a nylon brush. Never use abrasive pads or metal objects to clean it. These can damage the zinc coating, making it useless.
The cost of a galvanized wire rope will also depend on its specifications like diameter and length. Your galvanized wire rope supplier may provide it in finished coils or as unfinished material. But you can get customized orders depending on your needs. Make sure to speak with your supplier for a detailed estimate.
No! Saltwater can damage the zinc coating, eventually causing corrosion and rust. It’s better to use steel wire ropes for marine applications as they offer enhanced protection against salt water.
People also ask – will galvanize wire rope rust? The answer is yes. It will rust, but not quickly. It should last years before the zinc coating wears off and rust starts developing. That’s why regular maintenance is necessary.
As mentioned earlier, the galvanized wire rope comes in coils or strands with a precut length. You can cut it into the desired length, depending on your application. However, you will need to know how to cut galvanized wire rope.
The best way is to use a wire rope-cutting tool. You can use a tool depending on the diameter of the wire rope. Make sure to cut the wire rope quickly but steadily to avoid damage. You will also need to seize the ends.
Galvanized wire rope comes in different diameters and lengths. You want to purchase it from a reliable and well-known supplier like Elite Sales. We are one of the leading galvanized wire rope suppliers with warehouse locations in Miami, Tampa, Dyer, and Houston. We can offer you fair and transparent pricing, same-day shipping, and many other benefits.
There you go! These questions will help you understand if the galvanized wire rope is the right choice for your project. As you can see, you should avoid using this rope for marine and other saltwater applications. It is also not best suited for applications that require high tensile strength. This wire rope is best suited for day-to-day applications like hoisting, rigging, fencing, and logging.
Do you need galvanized wire ropes? At Elite Sales, we can help you procure the best-quality rigging and lifting material, including galvanized wire ropes. Give us a call for the details.
All wire ropes, except stationary ropes used as guys or supports, are subjected to bending around sheaves or drums. The service obtained from wire ropes is, to a large extent, dependent upon the proper choice and location of the sheaves and drums about which it operates.A wire rope may be considered a machine in which the individual elements (wires and strands) slide upon each other when the rope is bent. Therefore, as a prerequisite to the satisfactory operation of wire rope over sheaves and drums, the rope must be properly lubricated.With this in mind, the effects of bending may be classified as:Loss of strength due to bending is caused by the inability of the individual strands and wires to adjust themselves to their changed position when the rope is bent. Tests made by the National Institute of Standards and Technology show that the rope strength decreases in a marked degree as the sheave diameter grows smaller with respect to the diameter of the rope. The loss of strength due to bending wire ropes over the sheaves found in common use will not exceed 6% and will usually be about 4%.The bending of a wire rope is accompanied by readjustment in the positions of the strands and wires and results in actual bending of the wires. Repetitive flexing of the wires develops bending loads which, even though well within the elastic limit of the wires, set up points of stress concentration.The fatigue effect of bending appears in the form of small cracks in the wires at these over-stressed foci. These cracks propagate under repeated stress cycles, until the remaining sound metal is inadequate to withstand the bending load. This results in broken wires showing no apparent contraction of cross section.Experience has established the fact that from the service view-point, a very definite relationship exists between the size of the individual outer wires of a wire rope and the size of the sheave or drum about which it operates. Sheaves and drums smaller than 200 times the diameter of the outer wires will cause permanent set in a heavily loaded rope. Good practice requires the use of sheaves and drums with diameters 800 times the diameter of the outer wires in the rope for heavily loaded fast-moving ropes.It is impossible to give a definite minimum size of sheave or drum about which a wire rope will operate with satisfactory results, because of the other factors affecting the useful life of the rope. If the loads are light or the speed slow, smaller sheaves and drums can be used without causing early fatigue of the wires than if the loads are heavy or the speed is fast. Reverse bends, where a rope is bent in one direction and then in the opposite direction, cause excessive fatigue and should be avoided whenever possible. When a reverse bend is necessary larger sheaves are required than would be the case if the rope were bent in one direction only.
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