Is Grade 80 chain stronger than Grade 70?

What's the strength difference between Grade 70 and 80? 3/8” Grade 70 has a working load of 6,600 Lbs with a 4:1 safety factor. 3/8” Grade 80 has a working load of 7,100 Lbs with a 4:1 safety factor. Yep, just a 7% gain in strength going from Grade 70 to 80.

Which is better g70 or g80 chain?

g80 is only marginally stronger then g70, however 80 is proof tested and 70 is not. g63 is the proof tested grade which is roughly equivilent to g43. 63 is also approved for overhead lifting, and is used in lifting applications which are subjected to high heat.

What grade chain is the strongest?

Grade 100 chains are the strongest among readily available chains. Their strength-to-weight ratio is about 25% higher than grade 80 chains'. Most of the time, a grade 80 will suffice. However, you may need a grade 100 if the chain's application is heavily concerned with the strength-to-weight ratio.

What is Grade 70 chain used for?

Also known as “Transport Chain,” Grade 70 chain is most commonly used for tie down and load securement applications for trucking and other cargo. While Grade 30 and 43 chain can also be used for load securement, Grade 70 chain provides a stronger, more durable option with a much higher strength-to-weight ratio.

What is Grade 80 chain used for?

Grade 80. Grade 80 chain is a heat-treated steel chain with a high strength to weight ratio. Its strength makes it safe for overhead lifting and lifting slings. It's also excellent for uses such as recovery, safety, and towing chains.

What Are the Different Grades of Chain?

How strong is Grade 80 chain?

The first chain on our chain number chart to be made of alloy steel chain, Grade 80 chain is the first suitable chain to be used as a sling for overhead lifting and heavy-duty towing. The unique alloy material makes this chain's strength incredibly high, carrying a working load limit of 3,500 to 18,100 lbs!

What is the lifting capacity of a Grade 80 chain?

Peerless 3/8" grade 80 alloy chain is quenched and tempered. Proof tested to 200% of working load limit. Meets or exceeds all existing OSHA, Government, NACM and ASTM specification requirements. This heavy duty lifting chain has a working load limit (WLL) up to 7,100 lbs.

What is the difference between Grade 70 and Grade 80 chain?

Grade 80, a heat-treated steel chain, differs from Grade 70 in that it's known for its excellent strength to weight ratio; therefore, it can be safely used for overhead lifting. Additionally, it can be used as a towing, safety, and recovery chain.

Which grade chain is hardest to cut?

Grades 70, 80, and 100 are among the hardest and toughest available. Here's the kicker, though. We're talking chain that costs $10 to $22 per foot; it's likely to be more valuable than what you're chaining down, a fact that might not be lost on an enterprising thief, who might just make off with the chain itself!

What is the breaking strength of a Grade 70 chain?

The grade as advertised by chain manufacturers is 1/10 of the actual ultimate strength, which means Grade 70 chain has an ultimate breaking strength of 700 N/mm (or 101,526 psi).

What chain is the most durable?

Generally, 14k and 18k gold chains are the most durable because they are alloyed with other metals to increase their strength. The strongest chains in the world for men are those with a thick, interlocking design, such as the curb chain, Figaro chain, rope chain, box chain, and wheat chain.

What necklace chain is strongest?

Mariner chain necklaces are one of the strongest necklace chains available. These chains are shaped like ovals with metallic bars carved into them, giving them a sturdiness that makes them ideal for necklaces. They are very sturdy and are easy to repair if broken, and they look elegant when paired with pendants.

Can bolt cutters cut grade 70 chain?

This chain is common in the US and can be identified by the term "Grade 70" and the typical gold color. The 5/16" size can BARELY be cut by 36" bolt cutters with a 180lb guy bouncing all his weight on the handle for about 20-30 seconds, including 1 or 2 chain repositions.

What does G80 chain mean?

Grade 80 rigging chain, commonly referred to as grade 8, grade 800, g80, or g800 rigging chain, is the first grade of chain approved for overhead lifting and for use in lifting slings. G80 alloy steel chain is heat-treated to give it the proper amount of strength to perform overhead lifts.

Which is stronger Grade 43 or Grade 70 chain?

Grade 70. Approximately 25% stronger than Grade 43, Grade 70 is ideal for securing and towing large or heavy loads for road transport applications in the trucking, logging, and highway construction industries.

Can you use Grade 80 chain for transport?

They are commonly used for trucking and trailer tie downs, heavy load securement, and heavy towing. Grade 80 – Grade 80 chains are made of an alloy steel mixture that makes them extremely strong and suitable for overhead lifting. They can also be used for heavy duty towing, rigging, and tie downs.

Can you cut Grade 80 chain with bolt cutters?

It is unlikely that a 9/32 inch grade 80 steel security chain can be cut with bolt cutters. Grade 80 steel is a very hard and strong material, and security chains are designed to resist cutting.

What chain Cannot be cut?

The case hardened security chain is hardened to 63 rc at 10% depth and 50 rc in the core, making it impossible to cut with bolt cutters or any other hand tool. No other chain on the market is made of stronger materials or has a more difficult design for criminals to defeat.

What chain can't be cut?

The Best Chain Has Hexagonal or Square Links

Hexagonal links (or square or trapezoidal) make it impossible for bolt cutters to get a grip. Chain sold by the foot at the local hardware store performs lifting and towing well, but not theft resistance.

What is the difference between Grade 70 and Grade 80 steel?

In summary, Grade 70 chains are strong and suitable for load securing applications, especially in transportation contexts. Grade 80 chains are even stronger and more durable, making them appropriate for heavy lifting, construction, and other demanding tasks.

What is a grade 100 chain rating?

Grade 100 Chain has a 20 percent increase in working load limit as compared to a similar size chain in Grade 80. This allows you to reduce the size of the chain depending on the working load needed. Grade 100 chains are also referred to as Grade 10, System 10, Spectrum 10.

Can you lift with Grade 70 chain?

Grade 70 Chain

It's heat-treated in carbon steel and has a recognizable golden chromate finish. It should not be used for overhead lifting. It is a trucker's chain, built for fastening and placing, but definitely not for carrying loads in high places.

What grade of chain must be used to lift?

Alloy Chain Grade 80 or Grade 100 should be used for overhead lifting.

What size chain do I need to tie down my tractor?

Typically, grade 70 chain is the standard for tie down chain. Other chain grades such as 80, 100, and 120 can also be used, but aren't as popular.