Lifting chain slings – Frequently Asked Questions

Lifting Chain Slings - Frequently Asked Questions

Grade 80 and Grade 100

How can I tell the difference in the range of chains?

When chains are manufactured they are marked or stamped with a manufacturer’s mark and/or its grade at regular link intervals (usually no more than every 0.5m). Grade 80 chains are marked with an 8, 80, 800 or T. Grade 100 chains are marked with a 10, 100 or a V. Although chains are usually sold in different colours, colour is does not have any relation to the grade of chain.

Can I use G80 & G100 chain in a corrosive environment?

G80 & G100 chain and fittings should not be used in acidic or other corrosive environments. Please contact your nearest Ranger branch for more information about the use of our chains in these types of environments.

What is the Australian Standard for G80 & G100 Chain?

G80 & G100 chain is manufactured to conform to the mechanical properties specified in Australian Standard AS2321. Always refer to Grade 80 Working Load Limit and Grade 100 Working Load Limit charts.

What are the markings on chains?

Each manufacturer may mark their chain in a different manner to distinguish its grade or type. However, most rated lifting chains should at least have its grade marked at regular link intervals.

Is there an Australian Standard to cover G80 & G100 Chain Slings?

Factory assembled chain slings are tested and tagged in accordance with AS 3775. Learn more about the relevant Australian Standards here >

Can I weld G80 & G100 Chain?

No, do not weld G80 & G100 Chain or fittings to another material or try to join them. The heat applied during the welding process would be detrimental to the product and would adversely and significantly compromise its performance.

Can I galvanise or plate G80 & G100 Chain?

G80 & G100 Chain and fittings must never be hot-dip galvanised, mechanically galvanised or electroplated, except by the original manufacturer. The heat that would transfer to the product during the galvanising or plating process would be significantly detrimental to the product.

Are G80 & G100 chain and fittings heat treated?

G80 & G100 chain & fittings are heat treated under strict supervision during the production process. They do not require periodic heat treatment and must never be reheated by customers or end-users.

What is the difference between Grade 80 Chain and Grade 100 Chain?

Grade 80 chain is the most commonly used and available lifting chain for sling configuration within the Lifting Industry. Grade 100 Chain has a 20% higher lifting capacity and was specifically developed in Europe to reduce the weight of the assembled chain slings.

What is De-Rating?

De-rating is a reduction in the Working Load Limit (WLL) of a chain (or of a sling or component) with a consequent revision of its Safe Working Load (SWL), due to factors including how it is used, what it is used for, its surface finish and the work environment.

What is a safety latch or a trigger?

A safety latch is a spring-loaded latch that prevents the load from being unintentionally disengaged from the hook. A Trigger is the locking device found on the back of a self-locking hook that prevents the hook from unlocking.

Can I reeve chain with a Grab Hook?

Yes, however the strength of the chain may have to be de-rated by 25% for reeving depending on the style of grab hook and how it sits on the chain link.

How often should I check my chains?

There are two types of inspections as defined by Australian Standards: In-service and Periodic. In service – The user should check a chain sling before each use to ensure it is free from damage and wear. Periodic – Australian standard statased on their frequency of use. Ranger for the table and the exact wording for competent person. You can learn more about competent person requirements here >

Is it possible to purchase chain slings assemblies that have no mechanical joining devices?

Ranger can provide fully welded chain sling assemblies that have no mechanical joining devices. Prices and lead times are available upon request.

Can I use my G80 or G100 Chain Sling as a tow chain?

Yes, if the sling is tagged with its WLL you can use it for towing. You must ensure you know tow load and never exceed the WLL under any circumstances. However, once the chain sling has been used as a towing chain, the sling can not be used for lifting again.

Why? The force put on a chain sling when towing cannot be accurately measured. Using a manufacturer tow sling is the best option.

Under what heat conditions can G80 & G100 Chain Slings be used?

Where temperatures are likely to be higher than 200C reductions in the working load limits of Grade 80 & Grade 100 Chain Slings should be applied. Talk to our team as each manufacturer could be different.

Can G80 & G100 components be used together in one chain sling?

Yes, however the WLL of the weakest component of the chain sling needs to be adhered to and this needs to be the WLL stated on the tag.

Grade 120

What is Grade 120?

Grade 120 is a relatively new chain grade developed out of Europe to enable the user to achieve similar WLL as traditional Grade 80 but in one size smaller. G120 is 50% stronger than G80 and is 20% stronger than G100.

What sizes does G120 come in?

Grade 120 is currently manufactured up to 16mm.

What standard does G120 fall under?

Currently, there is no standard for G120 as the product is quite new. However, G120 is based around the G80 & G100 standards and fully conforms to the same requirements and the same qualities or limitations apply. However the Grade 120 Working Load Limit Chart can be found here >

Grade 60

What is Grade 60?

Grade 60 is a stainless steel grade of lifting chain.

Where would G60 be used?

G60 Stainless steel lifting chain is best suited to highly corrosive environments such as salt water or sewage treatment and food industries.

WHAT
STANDARDS
ARE RELEVANT?

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WHAT
ABOUT
SAFETY?

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WHAT IS A
COMPETENT PERSON?

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