July 6, 2020
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Chains are one of the most versatile pieces of hardware supplies. They can be used in industrial applications, construction, and for everyday around-the-house purposes. If you are looking to purchase an industrial chain, you will probably notice that there are a lot of options on the market.

In addition to varying chain lengths, grades, and link diameters, there are three basic types of finishes for chains: stainless steel, galvanized, and bright.

If you are not familiar with industrial hardware supplies, you are probably curious as to what these finishes are, why they matter, and, of course, which one you should buy. 

Each style of the chain has its benefits and drawbacks. Furthermore, the breaking strengths and durability ratings vary between the different types of metals – so choosing the wrong one could wind up creating major problems.

So, here are a few things that you must know about various types of chains before making a purchase for any project.

Stainless Steel

Stainless Steel Chain

As the name implies, stainless steel is a type of steel, meaning that the alloy metal is primarily iron-based. Stainless steel also contains at least 10.5% Chromium, which is an element that creates a thin layer of oxide on the exterior. This gives stainless steel a shiny surface while also protecting it from corrosion and rust. 

Stainless steel may also have carbon, silicon, manganese, or nickel mixed in for added strength and improved corrosion resistance. Stainless steel is also known for being:

  • Long-lasting
  • Easily cleaned
  • Extremely temperature resistant
  • Preferred for aesthetic reasons
  • Environmentally friendly and reusable

Stainless steel chains are formed by melting together all of the raw materials in a furnace to form a molten alloy. This typically takes between 8 to 12 hours until all of the materials are completely melted. The steel is then formed into the desired link diameter and forged together to form a chain.

Some of the most popular stainless-steel chain models include:

Although the stainless steel chain is certainly the strongest style, there are some downsides. First, it is more expensive than other types of chains – because the forging process is more intensive and requires more raw materials. The material also shows dirt, smudges, and scratches quite easily.

Galvanized Chain

Grade 30 Proof Coil Chain

The Galvanized chain is made of traditional steel which is then covered in zinc to prevent the metal from rusting or corroding. The galvanization process helps to extend the longevity of the chain and make it highly durable for applications that would typically corrode unprotected metal, such as on ships, near water, or in moist environments. 

Galvanized chain is a popular choice for many industrial applications as it is known for:

  • Long-lasting durability
  • High strength
  • General-purpose utility
  • Corrosion resistance

There are several galvanization processes that are used to coat chains. 

The first – and generally most common – is hot-dip galvanizing. This involves coating the metal chain in molten zinc so it bonds strongly to the metal for a thick, strong covering. This also creates a distinct pattern known as “spangle” as it appears to be semi-crystalized. 

Electroplated galvanization is another common method where an electric current is used to positively charge zinc ions so it attaches to the metal. This creates an extremely thin, even layer.

Metal may also be galvanized with z zinc spray or with powdered zinc which is then heated until it bonds with the metal. However, these methods are more commonly used with smaller metal hardware pieces as opposed to chains. 

Some of the most popular galvanized metal chains include:

Galvanized metal tends to be the least expensive type of chain, and it can be extremely long-lasting if it is taken care of properly. However, the zinc coating may eventually wear off or chip, particularly if the chain is exposed to lots of friction or movement.

Bright / Self-Colored

Bright Self Colored Chain

Bright chain (also commonly called self-colored) means that the metal material is not coated with any protective layer, leaving the metal exposed. 

Since this uncoated steel chain cannot be exposed to water, moisture, or corrosive environments, it is commonly used for internal securement – which is protected from these types of elements. Bright chains may also be painted or finished with a lacquer.

Some of the most common bright/self-colored chains from Elite Sales include: 

Since bright chains do not have any finishes or coatings, it is less expensive than other types – particularly stainless steel. While this lack of protective coating does make the metal quite susceptible to corrosion and rusting, bright or self-colored chains are also stronger and more durable than galvanized steel.

Type of Projects

As each style of the chain has its own strengths and weaknesses, some are made for specific applications while others are a bit more versatile.

For example, stainless steel and galvanized chains are best for uses in environments that could be exposed to water or moisture, such as:

  • Outdoor buildings
  • Boats
  • Docks
  • Water storage areas
  • Damp areas, such as basements

Bright/self-colored chains are far too prone to rusting and corrosion to be used near water, so they are generally best for applications like:

  • Internal joinery
  • Logging
  • Towing
  • Tie downs
Conclusion

When it comes to choosing an industrial hardware supplier for any type of chain, it is always best to consult an expert to help you find the exact materials you need for any project or application. 

That’s why you can count on Elite Sales. 

Our experienced, knowledgeable team members know everything there is to know about industrial hardware and they can help you find all of the products you need.

Get in touch today to place an order for stainless steel, galvanized, or bright chain today!


June 29, 2020
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Chains are used for all types of applications across numerous industries. Not only are they extremely strong, but they are super durable and flexible. Chains can be used on anything from attaching a swing to a swing set to tying down heavy cargo – all the way to overhead lifting equipment.

However, the grades of chains are an extremely important distinction to categorize what type of chain is best used for a given application. 

In addition to understanding the chain grades and their ideal situations, you need to know about the different types of finishes – such as stainless steel, galvanized, and bright. 

While an experienced industrial hardware supplier can certainly help you find the right type of chain grade and finish, it is important that you understand the differences so you know exactly when and why you should use various grades during a project. 

There are five main grades of chain: 30, 43, 70, 80, and 100. Grade 120 is a newer product available for extremely heavy-duty applications, but it is less common.  Each number is the maximum stress that the chain can take per millimeter squared. So, for instance, Grade 30 chain’s maximum stress is 300 newtons per millimeter squared. 

Let’s break down each one. 

Grade 30

Grade 30 Chain

Grade 30 is considered to be a general-purpose chain that can be used for a variety of applications. These applications do not require extremely high strength. Grade 30 is the least strong chain type. Depending on the chain diameter size, it can sustain a working load limit between 1,300 to 6,900 lbs. 

Grade 30 is commonly known as Proof Coil chain or Common Coil chain and is comprised of low-strength carbon steel. This type of steel is quite malleable and rust-resistant, but they are not as strong as other types of alloys. It is also less expensive than high carbon or stainless steel.

Grade 30 chain can be used in numerous types of applications, such as:

  • Light construction
  • Lead securement
  • Guard rails
  • Logging
  • Agricultural use
  • Marine industry

It is important to note that the Grade 30 chain should not be used for overhead lifting as its working load limit is too low. 

Elite Sales offers a Grade 30 Proof Coil chain available in numerous diameters and in self-colored, zinc plated, and hot galvanized finishes. 

Grade 43

Grade 43 Chains

Grade 43 chain is the next strongest grade of chain – of which can be used for slightly more heavy-duty applications than Grade 30. However, it is not approved for overhead lifting applications. Grade 43 has a working load limit ranging between 2,600 to 13,000 lbs.

Grade 43 is also commonly labeled as High-Test Chain or G-4 chain and is comprised of carbon steel, which is known for its high tensile strength and wear resistance. This makes Grade 43 the optimal choice for applications such as:

  • Towing
  • Heavy duty trucking
  • Farming
  • Construction
  • Guard chains
  • Container securement

Elite Sales offers numerous types of Grade 43 chains in various sizes, finishes, and designs. Some of the most popular models include:

Grade 70

Grade 70 Transport Chain

Grade 70 chain is about 20 percent stronger than Grade 43. It is made from heat-treated carbon steel that is incredibly sturdy and durable. Grade 70 chain typically comes in a gold chromate finish for easy identification – as well as protection from abrasion and scratches. Grade 70 chain is also commonly embossed with a number 7, 70, or 700 on each link.

Grade 70 has a working load limit available between 3,150 to 15,800 lbs. and is most commonly used for:

  • Trucking and trailer tie-downs
  • Logging and forestry
  • Heavy load securement
  • Towing
  • Construction
  • Oil rigging
  • Safety applications

Since this type of chain is often used on trucks, it is also known as Transport chain, Truckers chain, or Binder chain. Even though this chain is extremely strong, Grade 70 chain is not rated for overhead lifting.

Elite Sales offers Grade 70 Transport Chain and Binding/Boomer Chains available in various sizes and diameters.

Grade 80

Grade 80 Alloy Chain

Grade 80 is a far more heavy-duty chain that is certified for overhead lifting and other applications which require tremendous strength. It is made of an alloy steel mixture which makes it extremely strong, durable, and rugged. Many Grade 80 chains are available in a black lacquer finish for further protection from wear and scratching. 

Grade 80 chain has a maximum working load limit range of 3,500 to 47,700 lbs. It also meets the ASTM’s (American Society of Testing and Materials) standards for overhead lifting as it can be elongated by at least 20 percent before fracturing. In addition, to use in overhead lifting applications as a sling component, Grade 80 can be used for:

  • Heavy-duty towing
  • Rigging
  • Tie-downs
  • Mining

Grade 80 is also commonly called Alloy Chain and is available from Elite Sales in ranging sizes with a black lacquer finish manufactured to NACM (National Association of Chain Manufacturers) specifications for safety and overhead lifting usage.

Grade 100

Grade 100 Chain

Next to Grade 120, Grade 100 chain is the strongest type of chain offered by most industrial hardware suppliers. It is 25 percent stronger than Grade 80, making it the best choice for extremely heavy overhead lifting use and other extreme applications. Grade 100 chain is also comprised of alloy steel – which is heat-treated for higher strength and durability.

Grade 100 chain is available with working load limits between 4,300 to 35,300 lbs. It is designed to be used in a wide variety of applications, such as:

  • Overhead lifting slings
  • Construction
  • Manufacturing
  • Rigging
  • Towing

Elite Sales offers a Grade 100 Chain available in numerous sizes for nearly any type of heavy-duty project or application.

Conclusion

There are plenty of chain types available on the market – but when you buy from Elite Sales, you can rest assured that you are getting only the best quality of chain guaranteed. We offer a wide range of sizes and finishes in Grades 30, 43, 70, 80, and 100. 

Our knowledgeable staff is also available to answer any questions you may have and help you find the exact type of chain you need for the job. 

Reach out to our sales team today to place an order and make us your number one chain supplier.