Grade 80 Chains & fittings faqs

Questions and Answers Grade 80 Chains & Fittings Faqs

Find answers for the top, common and general list of questions within our Grade 80 Chains & Fittings Faqs.

For more information please do not hesitate in calling our support team on 07 3205 7000.

View our range of Grade 80 Chains & Fittings

What is De-rating?

A reduction in the capacity of a chain, component or sling with a consequent revision of its working load limit (WWL), due to factors including how it is used, what it is used for, its surface finish and the work environment.

On Herc-Alloy 800 Pre-assembled Chain Slings, what is the difference between the two bottom fittings available, the Clevis Self-Lock Hook and the Clevis Safety Latch Hook?

The Clevis Self-Lock Hook will lock itself when the load is engaged. The Clevis Safety Latch Hook is a general latch (spring loaded).

Can I use my Herc-Alloy 800 Chain Sling as a tow chain?

Yes, providing the sling is tagged with its WLL, ensure you know what the load to be towed is and that you never exceed the WLL under any circumstances. Once used as a towing chain, the sling should never be used for lifting.

Under what heat conditions can Herc-Alloy 800 Chain Slings be used?

Where temperatures are likely to be higher than 200ºC reductions in the working load limits of Herc-Alloy 800 Chain Slings should be applied.

Temperature range ºC	Reduction of WLL while heated
Up to 200	Nil
200-300	10%
300-400	25%
Over 400	Do not use

What is the difference between a Hammerlok and a Gr8 Connecting Link?

They are basically the same product and are used as a connecting device in conjunction with Herc-Alloy 800™ Chain and components. Herc Alloy 800 ™ Hammerlok™ are both registered trademark of PWBAnchor Limited, trading as KITO PWB

What is a safety latch?

The spring-loaded latch that prevents a hook from being unintentionally disconnected.

What is a clevis?

An integrated part of a lifting component designed for direct connection to a chain that incorporates two features, namely:

A fork or yoke integral with the end fitting.
A load pin which fits into the link and retains it in the clevis lugs.

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 as a 20% higher lifting capacity and was specifically developed in Europe to reduce the weight of assembled chain slings. Grade 80 chain is a robust chain that is widely used throughout the lifting industry.

Can I reeve chain with a grab hook?

Yes, however strength of chain is derated by 25% for reeving.

How often should I check my Chain Sling?

A Chain Sling should be inspected before each use to ensure it is free from damage and wear. It is important to check chain slings regularly, based on their frequency of use. Absolute Lifting and Safety are are able to offer an inspection and testing service tailored to individual user’s needs.

Whats the difference in using a Regular Series Oblong Link and a Large Series Oblong Link?

Both types of oblong links can be used for single leg or two leg applications. The main difference is their physical size which provides versatility in fitment to either large crane hooks or factory hoists.

Is there an Australian Standard to cover Herc-Alloy 800?

Factory assembled chain slings are tested and tagged in accordance with AS 3775.

Can Herc-Alloy 800 Chain be oiled before storage?

KITO PWB recommends the “light” oiling of Herc-Alloy 800 Chain Slings prior to prolonged storage. Suggested lubricant WD40.

Can I use Herc-Alloy 800 Chain in a corrosive environment?

Herc-Alloy 800 Chain and fittings should not be used in acidic or other corrosive environments. Please contact KITO PWB for more information about the use of our chains in these types of environments.

What is the Australian Standard for Herc-Alloy 800 Chain?

Herc-Alloy 800 Chain is manufactured to exacting quality control standards and conforms to the mechanical properties of Grade T Chain specified in Australian Standard AS 2321.

What are the markings on chains?

Each manufacturer of chain 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 intervals.

Should I weld Herc-Alloy 800 Chain?

No, do not weld Herc-Alloy 800 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 Herc-Alloy 800 Chain?

Herc-Alloy 800 Chain and fittings must never be hot dip galvanised, mechanically galvanised or electroplated, except by KITO PWB. The heat that would transfer to the product during the galvanising or plating process would be significantly detrimental to the product.

Are Herc-Alloy 800 Chain and fittings heat treated?

Herc-Alloy Chain and 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 and end users.

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

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