Chains for cargo securing and lifting
Chains are available in different grades and standards where the choice most often is based on the area of use. The most common standards are DIN and SMS. It is important to handle the chains correctly and to regularly inspect deformation, wear and other risks for breakage.
To consider when handling chains
• Only use a lifting classed chain for lifting and never lift with a twisted chain
• Use shortening hook when adjusting the length of the chain
• Knots may not occur on the chain
• Protect against sharp corners by using suitable shims
• Chains must not be exposed to excessive heat
• Avoid jerks when applying load to a chain
• Never apply the load at the tip of a hook. The load should always be at the bottom of the hook
• The different components should always be able to move freely in the direction of the load
Check this regularly
• The chain must be replaced when signs of permanent elongation, deformation or cracks occurs
• The wear on the chain measured in two perpendicular directions may amount to a maximum of 10% of the original size
• For additional information, see applicable standards and norms
Chains in Grade 80 and Grade 100 must not be used in contact with acids or other aggressive chemicals. The device must not be exposed to galvanizing.
|Chain Grade||Finish||Type||Usage area|
|2 *||Zink plated
|Lifting Equipment, lashing|
|10||Blue||KL||Lifting Equipment, lashing|
* Hot dip galvanized G20 is sometimes also called Commercial chain
Test force (Manufacturing proof force (MPF))
A percentage of the nominal maximum load or force the chain is tested with after production.
The force at which the chain breaks during destructive testing.
The total elongation (Total ultimate elongation)
Measurement of total increased length of the probe when breaking, expressed in % .
Maximal work load of the product.