Sells Tags - Labels, Strapping
Buys Cold Rolled, Aluzinc-Galvalume, Cold Rolled Coils, Electro Galvanized +1
Buys Cold Rolled, Aluzinc-Galvalume, Cold Rolled Coils, Electro Galvanized +1
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Steel strapping is narrow, thin cold-rolled steel strip used to bind heavy loads: steel coils and bundles, pipe and bar, bricks and blocks, timber and baled scrap. It is the strongest strapping there is and it does not stretch or creep, so it is used where polyester or polypropylene strap would not hold the load.
Strapping is slit from cold-rolled coil and finished in one of two ways. Regular-duty strap is low-carbon steel whose strength comes from cold rolling; it is stiff and is used for lighter loads and where the strap does not have to stretch. High-tensile strap is heat-treated — usually to a blue or black oxide finish — and combines higher strength with some elongation, so that it takes up the shock of handling and the settling of a load without breaking.
Strap is wound into ribbon-wound coils, one layer on top of the next, or into oscillated coils, wound across a wide core like thread on a spool; oscillated coils hold many times more strap and suit automatic strapping machines. The surface is painted, waxed or zinc coated against rust, which also helps the strap slide round the load.
A strapped joint is made with a seal crimped or notched over the overlapping ends, or without a seal by punching interlocking keys into the strap; the joint is usually weaker than the strap itself, so the joint efficiency matters as much as the strap's breaking strength. Hand tools tension and seal the strap; pneumatic and fully automatic heads are used on production lines and in steel mills.
Steel mills, coil processors and pipe and bar mills in the GCC are among the largest users of steel strapping, often on automatic strapping lines, along with brick and block plants and exporters of heavy goods. Strap and seals are mostly imported and sold with matching tools and service.
| Region | Standard | What it covers |
|---|---|---|
| USA | ASTM D3953 ASTM |
Strapping, flat steel and seals — types, sizes, breaking strength and seal joint strength |
| Europe | EN 13246 CEN-CENELEC |
Packaging — specification for tensional steel strapping: dimensions, breaking strength and tolerances |
| Europe | EN 13891 CEN-CENELEC |
Packaging — guide for the selection and use of tensional steel strapping |
Grade equivalents and the standards bodies: Steel grades & standards
Steel Mills - Agents & Traders · Other Steel Users · Surface Treatment · Cairo
Steel Mills - Agents & Traders · Fabrication · Dammam
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