Steel lifting chain Grade 80

alloyhigh strength steellashing

Introduction

Grade 80 Binder Chain (USA) is manufactured from heat-treated alloy steel. According to NACM Welded Steel Chain specifications, Grade 80 alloy chain is specified for demanding transport and restraint applications that require higher working load limits than carbon steel transport chains. Typical uses include cargo restraint systems, heavy equipment transport, flatbed trailer securement, and industrial transport operations where controlled chain tension is required.

NACM Grade 80 Mechanical Requirements

The mechanical properties of Grade 80 alloy chain are defined in NACM Table IV. The specification sets minimum working load limits, proof test loads, and minimum breaking forces for each chain size. Mechanical performance increases with chain diameter per the requirements in Table IV.

• 1/4" chain: Working Load Limit 4,500 lbs
• 3/8" chain: Working Load Limit 10,600 lbs
• 1/2" chain: Working Load Limit 15,000 lbs

Heat Treatment Process

NACM identifies Grade 80 as an alloy chain manufactured in a heat-treated condition. Heat treatment (quenched and tempered) is applied after chain production to achieve the mechanical properties required by the specification. Each assembly undergoes proof testing and breaking force verification to confirm compliance.

Fully Assembled Binder Chain Configuration

Grade 80 Binder Chain (USA) is supplied as a complete assembly with transport hooks installed at both ends. The assembly is designed for direct connection to ratchet binders, lever binders, trailer anchor points, and cargo securement systems.

• Chain restraint connection
• Transport load securement
• Binder compatibility
• Trailer anchor engagement

Application Limitation

Grade 80 Binder Chain (USA) is intended for cargo restraint and transport securement only. NACM specifies that chains designated for overhead lifting must be used for lifting applications; transport restraint assemblies must not be used for suspended load lifting.

Parameter

Size D | Material Dia. | Working Load | Proof Test Load | Breaking Load | Inside Length A Max | Outside Width B Max
7/32" | 5.5 mm | 3,500 lbs | 7,000 lbs | 14,000 lbs | 19.6 mm | 10.0 mm
1/4" | 6.4 mm | 4,500 lbs | 9,000 lbs | 18,000 lbs | 21.3 mm | 10.9 mm
5/16" | 8.0 mm | 7,100 lbs | 14,200 lbs | 28,400 lbs | 25.9 mm | 13.5 mm
3/8" | 10.0 mm | 10,600 lbs | 21,200 lbs | 42,400 lbs | 32.0 mm | 16.0 mm
1/2" | 13.0 mm | 15,000 lbs | 30,000 lbs | 60,000 lbs | 38.4 mm | 20.6 mm
5/8" | 16.0 mm | 22,600 lbs | 45,200 lbs | 90,400 lbs | 48.0 mm | 26.0 mm
3/4" | 20.0 mm | 35,300 lbs | 70,600 lbs | 141,200 lbs | 57.7 mm | 30.5 mm
7/8" | 22.0 mm | 45,200 lbs | 90,400 lbs | 180,800 lbs | 70.4 mm | 35.0 mm

Standards

• Name: Grade 80 Binder Chain (USA)
• MOQ: 100 Meters
• Package: Carton + Steel Pallet
• Manufacturing Standards: Manufactured according to NACM Grade 80 alloy chain specifications using quenched and tempered alloy steel
• Testing Standards: Each assembly passes proof load testing, breaking force testing, weld inspection, and dimensional verification
• Application Standards: Suitable for cargo restraint, heavy haulage, machinery transport, and flatbed securement systems. Not for overhead lifting
• Maintenance Standards: Inspect regularly for elongation, hook deformation, corrosion, cracking, and abnormal wear before transport use

Features / Technical specifications

• Product name: Grade 80 Binder Chain (USA)
• Construction: Grade 80 alloy steel, heat-treated (quenched and tempered)
• Design factor: 4:1
• Configuration: Supplied fully assembled with transport hooks installed at both ends; supplied hooks do not have a cradle
• Intended use: Lashing and cargo restraint (transport securement); NOT for overhead lifting
• Typical applications: Cargo restraint systems, heavy equipment transportation, flatbed trailer securement, industrial transport operations
• Mechanical verification: Proof testing and breaking force verification per NACM requirements
• Available chain sizes and example Working Load Limits: see Parameter table above (sizes 7/32" up to 7/8")
• Minimum order quantity: 100 Meters
• Packing: Carton plus steel pallet