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Planned maintenance and system upgrades will be carried out on DEMIRS systems on Saturday November 9th, 2024, between 4:00pm to 8:00pm & My Account from Monday, 11st Nov 2024, between 07:30 AM and 10:30 AM. For further information visit DEMIRS system outage notices.

Health and Safety Bulletin No. 1 Embrittlement - Serious risk to alloy lifting chain integrity when lifting loads in a corrosive environment

Alloy lifting chains and associated components (such as hooks, shackles and links) are used widely across a variety of industries and environments to lift and move loads.

There are a number of forms of embrittlement, including hydrogen embrittlement and caustic stress corrosion cracking, which pose an extreme risk to alloy lifting chain integrity. Embrittlement and corrosion can lead to sudden failure during a lift increasing the risk of serious injury or death to those in and around the lifting zone.

Using certain alloy lifting chains, such as Grade T (8, 80, 800) and V (10, 100, 1000), and their components in a corrosive environment can cause embrittlement and corrosion. This can lead to failure of alloy lifting chains and associated components.

References and further information

Australian Standards

  • AS 2321 – Short-link chain for lifting purposes
  • AS 3775.1 – Chain slings for lifting purposes – Grade T(80) and V(100),  Part 1: Product Specification
  • AS 3775.2 – Chain slings for lifting purposes – Grade T(80) and V(100), Part 2: Care and use
  • AS 4797 – Stainless steel chain for lifting purposes

Health and Safety Executive (HSE), United Kingdom  

Note: This Health and Safety Bulletin has been reissued and replaces WorkSafe Safety alert 5/2019

WorkSafe
Bulletin
Last updated 20 Sep 2022

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