Grade 70 Heat-Treated Carbon Steel Construction

Grade 70 Binder Chain (USA) Assembly is manufactured from heat-treated high carbon steel for cargo restraint and transport securing applications. Grade 70 chain is commonly identified by its gold chromate finish and is designed according to NACM transport chain requirements.

The heat treatment process improves tensile strength compared with Grade 30 and Grade 43 chains, allowing higher Working Load Limits under the same chain diameter. Grade 70 chains are widely used throughout the North American transportation industry for cargo control and load securement operations.

This product is designed for:

  Flatbed transportation

  Heavy equipment transport

  Construction machinery restraint

  Agricultural equipment hauling

  Industrial cargo securing

The assembly is not designed for overhead lifting applications.

Complete Assembly Configuration

Grade 70 Binder Chain (USA) Assembly is supplied as a complete transport restraint system with transport chain and end fittings already assembled.

A typical assembly includes:

  Grade 70 transport chain

  Clevis grab hooks or slip hooks

  Transport connection components

  Factory assembled end fittings

Compared with loose chain supplied by the foot, assembled transport chains reduce installation time and improve compatibility with ratchet binders and lever binders used during cargo securement operations.

Transport Load Securement Performance

During highway transportation, cargo is subjected to:

  Vehicle acceleration

  Braking forces

  Road vibration

  Cornering loads

  Uneven road surfaces

Grade 70 Binder Chain assemblies are designed to maintain tension during these dynamic conditions.

The chain assembly helps control:

  Cargo movement

  Equipment shifting

  Trailer load stability

  Transport restraint performance

Proper load securement reduces cargo displacement during long-distance transportation.

Heat Treatment and Tensile Performance

Grade 70 transport chain is produced through controlled heat treatment processes. The combination of carbon steel and heat treatment increases tensile performance compared with standard proof coil and high-test chains.

Compared with Grade 43 chain:

  Higher Working Load Limits

  Higher minimum breaking force

  Improved wear resistance

  Improved transport restraint performance

These characteristics make Grade 70 the most widely used transport chain grade for North American cargo securement systems.

Hook and End Fitting System

The assembly is commonly equipped with forged transport hooks designed for direct connection to anchor points, D-rings, and transport restraint systems.

Transport hooks provide:

  Rapid attachment

  Chain engagement stability

  Compatibility with binders

  Easy field adjustment

Hook dimensions are designed to match Grade 70 transport chain specifications for cargo securement applications.

Surface Finish and Corrosion Protection

Grade 70 Binder Chain assemblies are commonly supplied with gold chromate finish.

The surface treatment provides:

  Corrosion protection

  Visual grade identification

  Improved outdoor durability

  Transport industry recognition

Gold chromate coating has become the standard identification finish for Grade 70 transport chain throughout the United States and Canada.

Transportation Industry Applications

Grade 70 Binder Chain (USA) Assembly is commonly used in:

Flatbed trailers

  Lowboy trailers

  Equipment haulers

  Construction transportation

  Agricultural machinery transport

  Industrial cargo logistics

The assembly is specifically manufactured for transport restraint systems and must not be used for overhead lifting or suspended load handling.

5/16″ x 20 Ft. Grade 70 Binder Chain Assembly
5/16″ x 16 Ft. Grade 70 Binder Chain Assembly
1/4″ x 16 Ft. Grade 70 Binder Chain Assembly
1/4″ x 20 Ft. Grade 70 Binder Chain Assembly
5/16″ x 25 Ft. Grade 70 Binder Chain Assembly
3/8″ x 16 Ft. Grade 70 Binder Chain Assembly
3/8″ x 20 Ft. Grade 70 Binder Chain Assembly
3/8″ x 25 Ft. Grade 70 Binder Chain Assembly
1/2″ x 10 Ft. Grade 70 Binder Chain Assembly
1/2″ x 20 Ft. Grade 70 Binder Chain Assembly
5/8″ x 10 Ft. Grade 70 Binder Chain Assembly
1/2″ x 20 Ft. Grade 70 Binder Chain Assembly

Name: Grade 70 Binder Chain (USA) Assembly

Package: Carton + Steel Pallet

Manufacturing Standards

Manufactured according to NACM Grade 70 transport chain requirements using heat-treated high carbon steel for cargo securement applications.

Testing Standards

Each assembly passes proof load testing, breaking force testing, hook inspection, weld inspection, and dimensional verification.

Application Standards

Suitable for cargo control, flatbed transport, machinery securing, vehicle restraint, and heavy haulage operations. Not for lifting.

Maintenance Standards

Inspect regularly for elongation, hook deformation, corrosion, weld cracking, coating wear, and abnormal damage before transport use.