Learn the differences between Grade 30, Grade 70, Grade 80, and Grade 100 chains, their working load limits, common applications, and key cargo securement considerations for heavy-haul transportation.
For securing oversize loads in the United States, Grade 70, Grade 80, and Grade 100 chains are commonly used. Grade 70 is widely used for transportation and load securement, while Grade 80 and Grade 100 are selected for heavier loads and lifting applications where greater strength is required. The correct chain must always be selected based on the load, securement method, working load limit, and applicable regulations.
Each chain grade is designed for a different level of strength and application.
Low-strength carbon steel chain intended for basic applications and not for overhead lifting.
Heat-treated carbon steel transport chain widely used for trucking, logging, towing, and heavy cargo securement.
High-strength alloy steel chain used for lifting, rigging, construction, towing, and heavy-duty securement.
High-strength alloy chain offering greater strength than Grade 80 for demanding lifting and heavy-load applications.
A common choice for flatbeds, lowboys, equipment hauling, logging, and other transportation applications.
Higher-grade chains are commonly selected when greater strength is required for heavy lifting, rigging, or demanding cargo operations.
A quick overview of how the most commonly discussed grades differ.
| Grade | Material | Typical Use | Lifting |
|---|---|---|---|
| 30 | Carbon Steel | General purpose | No |
| 70 | Heat-treated Carbon Steel | Transportation / Towing | No overhead lifting |
| 80 | Alloy Steel | Heavy lifting / Rigging | Yes |
| 100 | Alloy Steel | Critical heavy lifting | Yes |
Working Load Limit (WLL) depends on chain size, grade, configuration, and the manufacturer's specifications.
Federal cargo securement requirements apply to interstate commercial motor vehicles and are designed to prevent cargo from shifting, falling, or rolling during transportation. Securement systems must be capable of handling the forces generated during braking, acceleration, and turning.
Proper securement combines the correct devices, positioning, tension, and inspection practices.
Cargo should be secured or immobilized using suitable structures and securement equipment.
Cargo capable of rolling should be restrained so that movement cannot loosen the securement system.
Aggregate working load limit should be sufficient for the cargo and the securement arrangement being used.
Tiedown requirements depend on cargo length, weight, and whether the cargo is blocked or immobilized.
Inspect chains and binders before use and during long-distance transportation.
Sharp edges can damage chains, straps, and webbing during transportation.
Certain cargo categories have additional securement requirements.
Large freight creates additional risks that require planning before and during transportation.
Oversized transportation involves unusual dimensions, high weights, route restrictions, and changing road and weather conditions. Proper planning helps reduce load movement and improve overall safety.
Unevenly distributed cargo can increase axle loading and cause instability during turns or braking.
Insufficient tension can allow cargo movement and reduce the effectiveness of the securement system.
Strong crosswinds can increase rollover risk, particularly with tall or wide freight.
Wet roads can reduce braking performance and increase stopping distance.
Grades place additional demands on braking and drivetrain systems.
Low clearances, narrow roads, bridges, and restricted routes must be identified before departure.
Selecting the right securement device depends on cargo type, weight, shape, and the required working load limit.
Best For: Heavy machinery
Common Grade: Grade 70 / 80
Benefit: High tensile durability
Best For: Load shift prevention
Examples: Wood beams / Steel supports
Benefit: Additional stability
Best For: Pipes / Lumber / Awkward cargo
Material: Nylon / Polyester
Benefit: Flexible securement
Match chain grade and size to the cargo and required WLL. Do not select chain solely by appearance or breaking strength.
Look for damaged links, cracks, corrosion, excessive wear, and deformation before connecting the chain.
Pair the chain with an appropriate binder and make sure the system remains properly tensioned throughout the haul.
Use suitable edge protection whenever cargo edges could damage chains, straps, or other securement equipment.
Stop and inspect the load after initial travel and whenever road, weather, or cargo conditions change.
Check bridge restrictions, clearances, road conditions, permits, and other route-specific requirements before departure.
Safely transporting oversized freight requires the right equipment, proper securement, route planning, and awareness of applicable transportation requirements. For heavy-haul transportation support, contact Freedom Heavy Haul for pickup and delivery assistance across the United States.
Call 270-908-9656We provide fast and reliable permit solutions with expert support, helping carriers stay compliant and keep every load moving on schedule.
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