G4 Chain Breaking Strength

In other words it allows the use of a thinner link which means more chain can be stored in a given chain locker.

G4 chain breaking strength.

Medium tensile chain is g4 or g40 tensile strength of 400 mpa. Also called grade 43 high test chain or grade 43 tow chain this is common in the towing and logging industries. High tensile chain is that made of steel with a tensile strength much above 500 mpa. Since 1968 west marine has grown to over 250 local stores with knowledgeable associates happy to assist.

And a breaking strength of 27 600 pounds. Grade 43 chain is embossed using a 43 or a g4. In the united states and some other regions this is commonly branded as high test which is not the same as high tensile. It is not rated safe for overhead lifting.

The wll wroking load for chain is usually defined of the ubs ultimate breaking strength expressed in pounds for all chain types except g4 grade 40 htchain has the wll defined as 1 3 of the ubs. It is unclear why the wll definition is different for grade 40 chain. Shop with confidence get free shipping to home or stores price match guarantee. Chain is graded based on the ultimate breaking strength of the chain measured in n mm 2 the american society of testing materials astm has published safety standards and regulations for these chain grades.

Ht chain is widely used because of its strength to link factor. Shop read reviews or ask questions about acco grade 43 g4 hot dip galvanized high test chain sold by the foot at the official west marine online store. 1 2 g4 has a working strength of 9 200 pounds. The working load limit called out on our anchor shackles is 1 6th of the breaking strength vs the ratio of 1 5th for the grade a shackles.

This type is also referred to as grade m in australia. The interesting thing to note is that the breaking strength is 3x grater than the working load giving this type of chain a significant safety margin but still a smaller margin of safety when compared to bbb. Grade 70 transport chain is also called grade 70 truckers chain as it s common in securing loads for over the road hauling. Chain grades what does g30 g43 g70 g80 g100 and g120 mean.

Lower chain grades g30 and g43. Its working load limit is nearly twice that of bbb chain and it has the highest weight to working load ratio.