Container corner castings (also known as container feet or hanging corners) are the most critical load-bearing and connecting components of every standard shipping container. Without qualified corner castings, containers cannot be safely lifted, stacked, secured, or transported globally. All standard corner castings are manufactured and inspected in full compliance with ISO 1161, the international standard for container corner fittings.

The standard ISO 1161 dimension for container corner castings is 178 x 162 x 118 mm, with a single piece weight of approximately 11.2 kg. High-quality castings must be free of blowholes, cracks, and welding defects, while maintaining sufficient strength for lifting, stacking, and securing operations.

Installation Position & Marking System

Each standard container is equipped with 8 corner castings in total: 4 top corner fittings and 4 bottom corner fittings. They are clearly marked and installed as follows:

• TL: Top Left corner

• TR: Top Right corner

• BL: Bottom Left corner

• BR: Bottom Right corner

During installation, the curved edge faces outward, the three-side holes face outward, and the non-porous surface is firmly welded to the container structure.

Functional Hole Design & Purpose

Each corner casting has precisely machined holes for lifting, fixing, and stacking operations:

• Top hole: Main lifting hole on the upper surface of top corner fittings

• Bottom hole: Main bearing hole on the lower surface for stacking and securing

• End hole: Longitudinal end opening for horizontal lashing and fixing

• Side hole: Lateral side opening with consistent shape on upper and lower fittings

• Inner cavity: Provides space for twist locks, hooks, and shackles; the effective bearing area must not be less than 800mm² to ensure safe force transmission

Core Functions of Container Corner Castings

Container corner castings are indispensable for the whole process of container logistics:

1. Lifting & Handling: As the only reliable stress point for container spreaders, ensuring safe and efficient loading and unloading

2. Stacking & Storage: Withstand the full weight of multi-layer stacking (up to 7 layers under standard conditions)

3. Securing & Lashing: Provide fixed connection points for ships, trains, and trucks to prevent sliding and overturning

4. Structural Reinforcement: Connect and fix the container’s frame, improving overall rigidity and impact resistance

Welding & Installation Requirements

Professional welding processes must be used for installing or replacing container corner castings:

• Most container factories and repair stations use CO₂ gas shielded welding

• Double-sided full welding with a leg length of 8mm

• Only one welding pass is allowed to ensure strength and avoid deformation

• Matching special welding rods are used to ensure firm combination with the container frame

Mechanical Performance & Inspection Standards

As the key load-bearing component, corner castings must meet strict performance requirements:

• Withstand extreme temperature changes from equatorial heat to polar cold

• Have high strength, toughness, and plasticity

• Possess qualified low-temperature impact toughness

• Resist cracking, deformation, or breakage under long-term stress

All CIMC Equilink corner castings comply with ISO 1161 and are certified by authoritative classification societies:

• BV (Bureau Veritas, France)

• LR (Lloyd’s Register, UK)

• ABS (American Bureau of Shipping)

• GL (Germanischer Lloyd, Germany)

• CCS (China Classification Society)

CIMC Equilink One-Stop Supply Service

CIMC Equilink provides a full range of high-quality container parts that meet international standards:

• ISO 1161 standard container corner castings

• Dry container parts, reefer container parts, iso tank parts

• Full series of structural parts, locking parts, and accessories

We maintain stable inventory, support fast delivery, and provide professional selection guidance for container production, maintenance, and modification projects.

If you are looking for reliable container corner castings, complete container parts, or shipping containers for sale from China, welcome to contact us for a quotation and detailed support.

Contact us:

• Email: info.equilink@cimc.com

• Submit a quick quote for fast response

CIMC Equilink – Professional container parts supplier for global logistics and container industry.

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