Macalloy S650 - Threaded Stainless Steel Re-Bar

The Macalloy 650 stainless bar can be used as an alternative to end threaded stainless re-bar. The thread form complies with a Type 2 deformation in accordance to BS4449 and BS6744. The bar can be supplied as end threaded only as opposed to fully threaded. Download our brochures below for more information. Alternatively you can contact us; the details can be found at the bottom of this page.

Macalloy S650 is a high strength stainless steel threaded bar system available in 304 and 316 grade Stainless steel.




















Grade 304 Stainless Steel is normally used in less corrosive environments and is adequate for most applications. Grade 316 has added Molybdenum enabling it to be used in more highly corrosive environments, for example, where this material may come into contact with seawater.

The system has a guaranteed yield stress of 650 N/mm². The thread is a cold rolled thread, similar to the standard Macalloy Pre-stressing bar. Standard lengths are 6m. Full strength couplers are available for longer lengths. 

The Macalloy 650 Stainless is available from stock in diameters 16mm to 24mm. Other sizes up to 50mm diameter are available by special order. Also available within the Macalloy 650 Stainless range are dished plates washers, pattress plates, lantern spacers, and hemispherical load nuts.

Macalloy can provide technical and on site support. See separate pages for more information.

For more details of failing and proof loads of Macalloy 650 stainless re-bar, diameters available  and component dimensions please download the Macalloy 650 brochure.



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Australia 108, Melbourne, Australia

Australia 108, planned for construction at 70 Southbank Boulevard, Southbank, Victoria, will be the first 100 storey residential apartment building in the southern hemisphere. Macalloy is providing a total of 203 tonnes of 1030 steel bar in 75mm fully threaded. 


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VTB Arena, Moscow Russia

Work is well under way at the VTB Arena - also known as Dynamo Central Stadium. Macalloy have provided galvanised 520 Grade Tension Rods in M16, M85 and M100. Work is expected to be completed later on this year, ready to host FIFA 2018 World Cup. Macalloy is also supplying Tension Rods to 4 other Russian Stadiums/Arena's - again these venues will be hosting the 2018 World Cup.




Site Services

Macalloy can provide support for installation and stressing of all our products. Site services support includes equipment hire, training of site personnel to install and tension bars and on site installation.

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