At Schillings, we are often asked why you can’t use just any type of chain for lifting and how to identify an appropriate chain grade. Well, we’re here to give you the answers!
There is a wide variety of chains available, and each one is designed for a number of different applications.
Chain is typically described using its grade. The grade of the chain refers to the tensile strength it possesses. At Schillings, we supply chains of all grades from reputable manufacturers.
Thiele, Pewag, Yoke, KITO PWB, Gunnebo and RUD are some of the common chain manufacturers in today’s market.
Below we have compiled a list of the most common chains supplied for industry use, some of which can also be used for general household applications. Excluding hardware, all chains are generally manufactured to meet Australian Standards. At Schillings, all of the chains that we stock and supply meets the standard applicable to the grade.
Chains are also available in a number of finishes, such as Zinc, galvanised, self colour, or painted. Some manufacturers use a specific colour that identifies the chain as one of theirs.
Commercial Chain – Manufactured for basic general purpose applications, the commercial chain is the most economical option. Available in self-colour or galvanised options. This type of chain is not to be used for lifting or lashing as it is not designed to meet safe lifting standards.
Proof Coil – Proof Coil is a non-heat-treated, mild steel chain. Manufactured in sizes ranging from 6mm to 24mm. It’s produced from low-grade carbon steel and is proof tested using at least double the maximum load recommended for use. Available in self-colour or galvanised options. It is not to be used for lifting or lashing.
Stainless Steel – Manufactured from Type 316 or 304 stainless, the stainless steel chain is highly resistant to corrosion in alkaline, acid, marine and salt-water environments. Stainless steel chain is typically used for applications such as netting chains, pump chains, and trawl chains. Available in short and regular link. Also available in lifting grade (Grade 60) upon request.
Grade 70 – Also known as transport or tie down chain, Grade 70 Transport Chain is manufactured from high tensile steel. Chains and fittings are a crucial element of the safe transport of goods. The suitability of a chain for transport is determined by its strength, hardness, size, and elongation. Schillings stocks high-quality chain and assemblies that comply with AS 4344 identified by the Australian standard, along with the lashing capacity stamped on the links. Grade 70 fittings are available, however they’re only suitable for this grade of chain.
Grade 80 – Manufactured from alloy steel, this type of chain is hardened and tempered. Its load-bearing capacity is more than three times that of a mild steel chain. This chain complies with AS 2321 for Lifting Chains. Grade 80 is frequently used in chain assemblies, as it is compatible with a large range of lifting fittings. Identified by markings on the link such as T, 8, 80 or 800. Grade 80 is a harder chain compared to grade 70 and won’t give way under pressure like lower grade chains.
Grade 100 – Grade 100 is manufactured from alloy steel and is hardened and tempered, offering a 20% increase in working load limits than a Grade 80 chain. This chain complies with AS 2321 for Lifting Chains. It is compatible with a limited range of lifting fittings. Grade 100 can be identified by markings on the link such as 10, 100.
Grade 120 – Grade 120 is intended for use on the biggest overhead lifting applications. Grade 120 Chain is a top-quality chain made from high-strength alloy steel. Grade 120 offers a 50% increase in working load limit when compared to a similar size chain in Grade 80. The significant weight benefit Grade 120 offers make handling, storing and transporting of the chain considerably safer and more economical.
For further information about chain grades and lifting equipment, give the team at Schillings a call on 1800 SCHILLINGS (1800 724 455). Get in contact with us to learn how we can help with your hoisting needs!