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ASTM 80 Standard link chains fall under the category of alloy chains, mixing unique metals such as nickel and carbon to improve strength and hardness. Usually, these chains have specific uses in lifting, towing, and load securing, among others.
Here are some ASTM 80 standard link chain types based on their specifications:
Lifting Chains
Many lifting chains used in cranes and winches are made to ASTM 80 standards. They evenly distribute the weight being lifted, hence minimizing strain on the object and lowering the possibility of accidents. They feature fine links to enhance smooth operation on hoists and pulleys.
Tow Chains
Tow chains, also known as towing or transport chains, are used in vehicle towing and boat anchoring. Unlike lifting chains, they are coarser and generally bigger in diameter due to more substantial bearing capability required in tensioning and pulling.
Securing Chains
Load securing chains used in vehicles for cargo securing also comply with ASTM 80 standards. A chain with proper tensile strength will keep items safely tied down without any risks of stretch or breakage. These chains also exhibit lower elongation when under load.
The primary functions of chains are associated with heavy-duty services. Some of the crucial functions include:
Load Lifting
Chains are used for heavy objects to be lifted in factories, construction sites, and in the military. Maybe even as Lifting straps, Lifting chains are secured to loads through hooks or slings and lift them to different heights using cranes and other powerful equipment.
Towing and Pulling
Towing chains assist in pulling vehicles stuck in mud, snow, or otherwise unable to drive on their own. Besides vehicles, such chains are often used to pull agricultural implements and such heavy machinery as excavators and compactors.
Load Securing
ASTM 80 chains are heavily used in transport industries to secure cargo loads within trucks, trailers, and container ships. Their strength prevents chain stretch or shrink, which keeps the knees safe and stable during transportation.
Material
ASTM 80 standard link chains are made from high-grade alloy steel for maximum strength. The steel is treated through processes such as heat treatment to enhance tensile strength and make the chain last longer even under extreme conditions.
Proof Coil Design
The links form a standard proof coil design; hence, all the links are evenly spaced with no obstructions in the smooth running chain. This feature reduces any possible wear to the chain or equipment moving the chain and makes the chain flexible when coiling up.
Link Size
Links measure approximately 5/16-inch to 1/2-inch in diameter but may be larger depending on the specific tasks that need to be accomplished. Size contributes to a weave's strength and easy manipulation, making it easy to shape the chain into different 'Sling hooks' or belts.
Corrosion Resistance
Many ASTM 80 chains come with a special coating like powder coating or a galvanic process to enhance corrosion resistance. This helps if the chain is used in extreme weather, near sea water, or any environment where moisture is an issue and helps to increase indestructibility.
Chains have specific designs that enable them to effortlessly perform their primary functions, depending on the recommended usage and industry standards. They include:
Link Configuration
The standard link configuration provides even weight distribution and smooth operation. The coil chain design resembles a round link/short link style. Round links provide the best flexibility, while short links give maximum durability and strength.
Link Shape
They are typically round in shape but may have short sections, depending on usage. Round links offer flexibility; short ones provide strength. Each link type serves a specific design requirement while conforming to the standard.
Finish and Coating
To prevent rust, some chains feature special coats like powder coating or being galvanized, which is similar to a process of immersing the chain in molten zinc. Other than enhanced corrosion resistance, some finishes provide better grips and lower friction when used for towing or lifting.
Chain Sizes
Chains vary in size, and there's a range of diameter link sizes, typically between 5/16" and 1/2". The right size link increases wearability but doesn't compromise on strength. Link size is selected based on the required lifting or towing capacity.
Heavy Industry
The ASTM 80 chain standard link chains are used in hoisting equipment, supplying the chains needed for load-gallering in manufacturing areas. They lift dense, bulk material, machinery, and equipment moves safely and efficiently in industrial environments.
Construction Sites
These chains perform some lifting, towing, and securing tasks at the construction sites. The chains are used in cranes and other lifting machines to safely move construction materials. They also tow 'Constructions' like concrete mixers and other heavy equipment pulled by site tractors.
Shipping and Logistics
In logistics, load securing is the most common chain application. In trucks and cargo ships, the chain ensures products are safely secured during transport. The chain's resistance to stretching may prevent over-tightening or, worse, undermining the goods' integrity.
Agriculture
Agricultural operation chains are used for towing implements like plows and harrows. Many farmers also use these chains to secure loads when transporting such products as grains in a trailer and equipment.
Emergency Services
Towing chains mostly come in handy in emergency services, especially with the help of a towing chain. For instance, vehicles that are stuck in grocery stores or even off-roaders will have a standard link chain for towing as one of the parts used for helping with towing.
Mining
In mining operations, ASTM 80 chains are used to lift heavy equipment and move big mining materials, all because of their strength and durability. They are also used for towing machines like conveyors and drills.
Military and Defense
ASTM 80 chains are also applied in military operations to move equipment and vehicles or load planes and ships. One of the strongest links in the chain is all-round flexibility and versatility, which makes it possible to use it in many tough environments.
Some of the most important factors that should be considered when selecting this ASTM 80 chain include the following:
Strength Requirements
It is critical to understand the load that will be lifted or towed and the tensile strength of the ASTM 80 chain to perform the required tasks. The strength required may depend on the load to be lifted or towed and the environment where the chain would be used.
Chain Length
Chain length is something that has to be considered based on the equipment being used and the task to be accomplished. A longer chain provides flexibility and makes it easier to work with; however, it does not have the tensile strength to perform the intended task.
Link Size and Diameter
Link size impacts the chain's strength as well as how easy it is to manipulate. Larger links provide ease in manipulations, but the links are shorter, giving more strength. Consider which size would contribute to the overall function and application of the chain.
Environment
The environment where the chain will be used should be considered. If the application is near water, salt, or moisture, go for chains with corrosion-resistant coatings like galvanizing or powder coating. If the temperature is high, choose a chain that can stand up to the heat.
Certification and Compliance
Ensure that the chain is made according to the ASTM 80 specifications, as well as certifying it for quality and safety. Such companies usually provide detailed proof or certificates that support the existence of such chains.
Accessories and Hardware
Some chain hooks, hardware, or slings may have an ASTM 80 or similar grade. For proper performance, accessories should be compatible in strength, size, and material to the chosen chain and the tasks at hand.
Budget
ASTM 80 chains are available in many price ranges so that a buyer can get one to suit his or her budget. Do not compromise on quality because properly strengthening a chain will pay off in the long run regarding safety, durability, and efficiency.
A1: ASTM 80 standard link chains are high-strength alloy steel chains used for lifting, towing, and load securing. They meet ASTM international standards for quality and safety.
A2: Common applications include construction, industrial lifting, military operations, towing vehicles, securing cargo, and heavy machinery transport in agriculture and mining.
A3: ASTM 80 chains are typically made of high-grade alloy steel, often with elements like nickel and chromium to enhance strength, durability, and corrosion resistance.
A4: The size should be guided by the intended load. Larger sizes make moving the chain easy, but small sizes are tougher and stronger, adding strength to the chain.
A5: Yes, many chains are treated with coatings like galvanization or powder coating to prevent rust and corrosion, making them suitable for harsh outdoor environments.
