| Grade | G43 |
|---|---|
| Material | Carbon steel |
| Surface Treatment | Self-Colored Finish Or Zinc Finish |
| Application | Used for a variety of applications |
| Grade | G43 |
| Material | Carbon Steel |
| Surface Finish | Self-Colored Finish Or Zinc Finish |
| Short Link G43 High Test Chain Sizes | |||||||||
| Finish | Trade Size | Wire Dia. | Inside Dim. Length (Nominal) | Inside Width (Nominal) | Ft. Per Package | Working Load Limit | Net Wt. | ||
| (in.) | (mm) | (in) | (in.) | (in.) | (Lbs.) | (kg) | (Lbs.) | ||
| Self-Colored | 1/4 | 7 | 0.281 | 0.980 | 0.410 | 800 | 2600 | 1180 | 600 |
| HDG | 5/16 | 8 | 0.343 | 1.100 | 0.480 | 550 | 3900 | 1770 | 633 |
| Self-Colored | 3/8 | 10 | 0.406 | 1.340 | 0.570 | 400 | 5400 | 2450 | 640 |
| HDG | 1/2 | 13 | 0.531 | 1.500 | 0.750 | 200 | 9200 | 4174 | 540 |
| HDG | 1/4 | 7 | 0.281 | 0.980 | 0.410 | 800 | 2600 | 1180 | 600 |
| Self-Colored | 5/16 | 8 | 0.343 | 1.100 | 0.480 | 550 | 3900 | 1770 | 633 |
| HDG | 3/8 | 10 | 0.406 | 1.340 | 0.570 | 400 | 5400 | 2450 | 640 |
| Self-Colored | 1/2 | 13 | 0.531 | 1.500 | 0.750 | 200 | 9200 | 4174 | 540 |
| Self-Colored | 1/4 | 7 | 0.281 | 0.980 | 0.410 | 400 | 2600 | 1180 | 300 |
| Self-Colored | 5/16 | 8 | 0.343 | 1.100 | 0.480 | 275 | 3900 | 1770 | 316 |
| Self-Colored | 3/8 | 10 | 0.406 | 1.340 | 0.570 | 200 | 5400 | 2450 | 320 |
| Self-Colored | 1/2 | 13 | 0.532 | 1.500 | 0.750 | 100 | 9200 | 4174 | 270 |
Short Link G43 High Test Chain is a carbon steel chain known for its high strength-to-weight ratio. It is not approved for overhead lifting but is excellent for load securing, towing, and lashing applications due to its durability and NACM (National Association of Chain Manufacturers) specifications.
“Grade 43” refers to the chain’s strength, with a minimum tensile strength of 43,800 pounds per square inch. “High Test” means it is factory proof-tested to twice its working load limit, ensuring reliability for demanding, non-lifting tasks.
The “Grade” is a standard rating that tells you the chain’s strength. G43 is made from carbon steel. The number 43 signifies its strength properties, as defined by industry standards like the NACM. A higher grade number usually means the chain is made from a stronger material.
“High Test” is a quality control promise. It means the chain was subjected to a significant load at the factory before being sold. This is called a proof test. For the G43 chain, the proof test load is double its rated Working Load Limit (WLL). This test ensures there are no hidden weaknesses in the links or welds.
The term “Short Link” refers to the dimensions of each link. A shorter pitch makes the chain more flexible and less likely to kink. This makes it fit loads better and work smoothly with hooks and binders.
Here is how the strength ratings relate to each other:
| Rating | Description |
|---|---|
| Working Load Limit (WLL) | The maximum load the chain should ever be subjected to in daily use. |
| Proof Test | The load applied at the factory for quality control. It is 2x the WLL for G43. |
| Minimum Breaking Force | The minimum force at which the chain will break. It is 3x the WLL for G43. |
G43 is stronger than standard Grade 30 (Proof Coil) chain but not as strong as Grade 70 (Transport) chain. It is much different from alloy chains like G80/G100, which are heat-treated and specifically designed for safe overhead lifting.**
Not all chains are created equal. This was a key point in my discussion with Mark. He was reselling chains for securing loads on trailers, so he needed something stronger than basic hardware-store chains, but did not need an expensive lifting chain. The right choice depends entirely on the job. Using a G43 chain where a G80 is needed is extremely dangerous. Using a G80 where a G43 would do is simply a waste of money. The biggest difference between these chains is the material and manufacturing process, which determines their strength and safe use. Carbon steel chains like G30, G43, and G70 are for binding and tie-downs. Alloy steel chains, such as G80 and G100, are used for overhead lifting.
Here is a simple table to help you see the differences:
| Attribute | Grade 30 (Proof Coil) | Grade 43 (High Test) | Grade 70 (Transport) | Grade 80 (Alloy) |
|---|---|---|---|---|
| Material | Low Carbon Steel | Carbon Steel | Heat-Treated Carbon Steel | Heat-Treated Alloy Steel |
| Primary Use | Light duty, barriers | Load binding, tie-downs | Heavy load binding, trucking | Overhead Lifting |
| Strength (Relative) | Standard | Higher | High | Very High |
| Overhead Lifting? | NO | NO | NO | YES |
| Common Marking | 3, 30 | 4, 43 | 7, 70 | 8, 80 |
As you can see, the G43 chain hits a sweet spot. It offers a significant strength advantage over G30 proof coil chain, making it suitable for more demanding jobs. But it remains more affordable than the G70 transport chain and much cheaper than the specialized alloy chains required for lifting.
G43 High Test chain is ideal for non-lifting jobs that require high strength. This includes load binding on trucks, vehicle tie-downs, towing, logging, and farming. It must never be used for overhead lifting under any circumstances.
The single most important rule is this: Do not use the G43 High Test chain for overhead lifting. This includes using it in chain slings to hoist materials with a crane or other lifting device. G43 is made of carbon steel. It is designed to be strong, but it will break without stretching much first. Alloy lifting chains like G80 and G100 are made differently. They are designed to stretch noticeably before breaking, giving a visual warning that they are overloaded. This is a critical safety feature that the G43 chain lacks.
Always partner with a reputable manufacturer that provides transparent documentation. Request proof-test certificates and evidence of compliance with standards such as ISO 9001. Check for clear grade markings (e.g., G43, 43) on the links themselves. This is your proof of quality.
A reputable manufacturer will emboss the grade directly onto the chain. Look for “G43,” “43,” or just “4” stamped on the links every foot or so. If a chain has no markings, assume it is a low-quality, low-strength hardware chain and is not suitable for any load-bearing task.
Don’t just take a supplier’s word for it. Ask for documentation. We provide our clients with a full set of papers for every batch. This includes:
A good supplier will be happy to talk about their quality control. At our facility, every batch of chain undergoes a strict breaking tension test. We physically pull samples apart to ensure they meet and exceed the minimum breaking force standards. We conduct these link tests and chain tests in our own lab. This rigorous process guarantees the safety of the people and materials that will depend on our products. By working directly with a manufacturer who controls quality from start to finish, you eliminate the risk of fraud and get a product you can trust.
We will contact you within 1 working day, please pay attention to the email with the suffix “@uulifting.com”.