Our product range of corrugated metal pipes and bolted, corrugated steel structures are all based on the same underlying design principle: by applying sinusoidal profiles to flat steel or aluminium sheet, the wall strength is greatly increased.
The subsequent high-strength to weight ratio results in highly cost-effective structures, with a wide range of applications. Our Stilcor helical culverts are manufactured in a wide range of materials with wall thicknesses from 1.6mm up to 4.2mm. We offer all corrugation profiles specified in the prevailing standard AS/NZS2041: 2010 ‘Buried corrugated metal structures’: including 68mm x 13mm, 75mm x 25mm and 125mm x 25mm. We can also roll-form the 150mm x 50mm corrugation profile on our mobile mills in diameters >4.4m to 7.0m.
The B200 and B381 bolted, corrugated metal structures all for a wide range of structure shapes, stronger corrugation profiles and heavier steel thicknesses. We manufacture the B200 ‘multiplate’ structures in Townsville, Qld, and the B381 structures are manufactured by our South Korean partners Fixon Inc. We offer a full design service carried out in accordance with AS / NZS2041.1 ‘Buried Corrugated Metal Structures – Design Methods’. Our design Is supplemented by 3D FEA analysis where required.
Bolted, corrugated metal structures (‘BCMS’) are manufactured as curved, corrugated plates, which are then assembled on-site.
The B381 profile offers a more limited range of structure shapes but has a greatly enhanced structural capacity.
Stilcor CSP / CMP culverts are helically-wound pipes available in a wide range of metals and coatings.
HPL is a polyethylene-coated galvanised steel with the same steel strength and galvanizing weight (G250, Z600) as used in the manufacture of our standard culverts.
The major use of our corrugated pipes is for drainage culverts. Stilcor CSP culverts are the preferred option on many road and rail projects due to their relative low-cost
Typical road and rail projects require our full product range of Stilcor CSP culverts, B200 multi-plate arches and the B381 large-span underpasses.
