G4 Chain Breaking Strength

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G4 chain breaking strength.

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. Shop with confidence get free shipping to home or stores price match guarantee. Also called grade 43 high test chain or grade 43 tow chain this is common in the towing and logging industries. Grade 70 transport chain is also called grade 70 truckers chain as it s common in securing loads for over the road hauling.

This type is also referred to as grade m in australia. Grade 43 chain is embossed using a 43 or a g4. 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. In other words it allows the use of a thinner link which means more chain can be stored in a given chain locker.

1 2 g4 has a working strength of 9 200 pounds. Ht chain is widely used because of its strength to link factor. Chain grades what does g30 g43 g70 g80 g100 and g120 mean. Our anchor chain shackles are strong enough to use with hi test chain just pick one size larger than the chain.

And a breaking strength of 27 600 pounds. High tensile chain is that made of steel with a tensile strength much above 500 mpa. See chart for astm specification number. Medium tensile chain is g4 or g40 tensile strength of 400 mpa.

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. It is unclear why the wll definition is different for grade 40 chain. In the united states and some other regions this is commonly branded as high test which is not the same as high tensile. Lower chain grades g30 and g43.

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. Breaking strength exceeds that of high test g4 chain 30 stronger than standard grade a shackles depending on sizes forged hot dip galvanized coating on both the shackle and pin working load limit size and logo stamped on every shackle bold black colored pin proof tested load rated bow anchor and d chain types.