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Used anchor chains can be classified into three categories based on the type of chain link:
Grade 30 chain:
This is a used anchor chain made of steel links. It is commonly used in anchor and mooring applications. It is also known as a utility chain. The working load limit of a Grade 30 chain is 3.75 times the chain's nominal diameter in millimeters. It is suitable for applications where high strength is not critical.
Grade 43 chain:
This is a high-strength used anchor chain. It is made of carbon steel and has oval-shaped links. The anchor chain links are normalized, which improves their strength. Grade 43 chains are widely used in heavy-duty anchoring and towing applications. The working load limit of a Grade 43 chain is 4 times the chain's nominal diameter in millimeters.
Grade 50 chain:
This is a used anchor chain that is made of alloy steel. Grade 50 chains have a higher working load limit and are suitable for the most heavy-duty anchoring applications. The working load limit of a Grade 50 chain is 5.5 times the chain's nominal diameter in millimeters.
Various factors are considered when determining the specifications of a used anchor chain. This includes the material, size, and grade of the chain. Here are the specifications of used anchor chains.
Material
Anchor chains are made from different types of materials. However, one of the most common materials used in making anchor chains is steel. This is because steel is a durable material that has a high level of resistance to corrosion. Another material that is used to make anchor chains is plastic. Anchor chains that are made from plastic offer a lightweight solution. They are also resistant to corrosion. However, plastic anchor chains are not as durable as steel chains.
Size
Used anchor chains come in different sizes. The size of the anchor chain that is required for a specific use depends on the depth of the water and the weight of the anchor. Anchor chains that are used in deep waters tend to be larger when compared to those that are used in shallow waters.
Grade
There are different grades of anchor chains. Each grade is designed to offer a specific level of strength and durability. For instance, the ABS grade anchor chain is known for its high level of strength. This makes it suitable for harsh environments. On the other hand, the NV grade anchor chain is more suitable for inland waters.
Used anchor chains require regular maintenance in order to enhance their lifespan and ensure that they are in good working condition. Below are some anchor chain maintenance tips.
Regular Inspection
Conducting regular inspections of used anchor chains is an important part of maintenance. Inspections should be done before and after every use. This is important because it allows for the early detection of signs of wear and corrosion. Also, the inspection should include a check of the fittings, links, and attachments of the anchor chain.
Cleaning
Cleaning the used anchor chain on a regular basis is also important for maintenance. This is particularly necessary after every use in order to remove dirt, mud, sand, and other debris that could potentially affect the durability and strength of the anchor chain. Freshwater cleaning is the most common type of cleaning. However, in cases where the anchor chain has heavy buildups, using a soft brush and mild detergent can come in handy.
Lubrication
Lubrication of the used anchor chain is another important maintenance tip. This is because it helps to reduce friction and wear during use. When lubricating anchor chains, it is important to use the right type of lubricant. This is because it helps to enhance the effectiveness of the lubrication.
Replacement of Worn-out Parts
Another important maintenance tip of used anchor chains is the replacement of worn-out parts. Worn-out parts of the anchor chains can be easily replaced. This helps to improve the performance of the anchor chains. However, in order to know the parts that are worn out, regular inspections of the anchor chain are required.
There are several factors to consider when buying a used anchor chain. These include:
Material
The material of the used anchor chain affects its durability and corrosion resistance. Chains made of stainless steel have high resistance to rust and corrosion. This makes them ideal for freshwater applications. For saltwater environments, such as in oceans or seas, chains made of alloy steel are suitable. Alloy steel has superior strength and durability. It can also withstand harsh weather and conditions found in marine environments.
Buyers should also consider the weight of the anchor chain. Stainless steel chains are heavier than those made of galvanised steel. The added weight of a stainless steel chain may put extra strain on the winch when hoisting the anchor. This can lead to mechanical failures or accidents. It is important to find a suitable chain that won't cause problems when retrieving the anchor.
Size and grade
Used anchor chains come in different sizes and grades. The size is determined by the diameter of the chain links. Grade refers to the type of material and its treatment. This affects the strength of the chains. Common sizes of used anchor chains include 3/8, 1/2, and 5/8 inches. The size of the chain should match the size of the anchor and the windlass system. This ensures optimal performance. For smaller boats, a 3/8-inch chain is suitable. Larger vessels require chains with diameters of 5/8 inches or more.
Condition
Buyers need to thoroughly inspect used anchor chains before purchasing. Look out for signs of wear, corrosion, or damage. Used chains that have high levels of wear or damage may fail when in use. This can cause accidents or losses. Corrosion also reduces the lifespan of the anchor chain. It is important to choose chains that are still in good condition. This reduces the need for repairs or replacements, which helps to save on costs in the long run.
Length
The length of the anchor chain affects how well the anchor holds the boat in place. Longer chains provide better anchorage. However, they can make the anchor difficult to retrieve. The length also affects the weight of the chain. Heavier chains can strain the winch and reduce its efficiency.
Replacing a used anchor chain is a straightforward process that can be done with some basic tools and safety precautions. Here's a step-by-step guide on how to DIY and replace an anchor chain.
Tools and materials needed:
Step-by-step guide:
Q1: How long does an anchor chain last?
A1: The lifespan of an anchor chain depends on various factors, including frequency of use, environmental conditions, and material.
Q2: Can buyers get a warranty for used anchor chains?
A2: Some suppliers offer a limited warranty period for used anchor chains. The warranty will cover only some damages, such as those caused by normal wear and tear.
Q3: Why should buyers purchase a used anchor chain instead of a new one?
A3: A used anchor chain is affordable and helps buyers reduce environmental impact. The chains also come in various sizes and conditions, making it possible to meet different customers' needs.