1. Why Transport Damage Matters
A steel beam that is bent, dented or scratched during transport may be rejected at site, causing delays and re-ordering. Long slender members are particularly at risk because their own weight can cause sagging when the supports are too far apart, and the edges and flange tips are easily damaged by chains and sharp contact. Careful planning of packing, lifting and securing is therefore part of the supply quality system.
2. Bundling and Packing
Beams of the same size are packed into bundles with separators between layers so that the flange edges do not cut into the members below. Steel or timber dunnage is placed under the bundle to keep it off the ground and to spread the lifting forces. For long shipments, several support points are used along the length, and the number of supports is chosen so that the sag of the beam remains within acceptable limits under its own weight.
3. Securing on the Vehicle
On a truck or container, the bundle is placed on dunnage and secured with lashing straps or chains at intervals along the length. The lashings are tightened so that the load cannot shift during braking, acceleration or cornering, and edge protectors prevent the straps from cutting the steel. The transport height must respect road clearance limits, and the load should be positioned to keep the vehicle within its axle load limits.
4. Lifting and Unloading
Bundles are lifted with spreader beams or multiple slings so that the lifting force is distributed over several points instead of concentrating at the middle. Individual beams are lifted with clamps or fabric slings rather than chains wherever possible, because chains scratch the surface and can damage the edges. During unloading, the crane operator follows the marks on the bundle to place each group in the correct storage area.
5. Protection Against Corrosion in Transit
For overseas shipments, beams may be protected with a rust-preventive oil, wrapping or shrink film, particularly when the voyage is long and humid. Condensation inside containers can cause surface rust, so desiccants and proper ventilation are used when specified. Bare steel that develops light surface rust during transit is normally acceptable under the delivery standard, but heavy corrosion or pitting is cause for rejection.
Frequently Asked Questions
Q: Why are beams packed with separators between layers?
Separators prevent the flange edges of one layer from cutting into the members below and keep the bundle stable during lifting.
Q: How many support points are needed for long beams?
Multiple supports are placed along the length so that the sag under the beam's own weight stays within acceptable limits; the spacing depends on the section size.
Q: Why are fabric slings preferred over chains?
Fabric slings are softer and do not scratch or dent the steel surface, while chains can mark the flanges and edges.
Q: Can surface rust during transit cause rejection?
Light surface rust is normally acceptable, but heavy corrosion, pitting or mechanical damage is cause for rejection and is documented for the claim.
Q: How are beams secured on a truck?
Bundles are lashed with straps or chains at intervals, with edge protectors, and the lashings are tightened to prevent shifting in transit.
Q: Is rust-preventive oil applied before shipment?
For long or humid voyages, an oil film, wrapping or shrink film is applied to protect the surface, sometimes together with desiccants in containers.