SRG are the licensed Australian agent for the sale of Macalloy 1030 Post-Tensioning Bar. Macalloy bar systems are ideal for the economic application of post-tensioning forces on relatively short tendons. Through the use of threaded connections and anchorages they are simple to use and lend themselves to many applications.

The robust coarse thread (CT) provided to the Macalloy stressbars ensures rapid and reliable assembly, particularly suitable for onsite use and reuse. The Macalloy bar system consists of high tensile alloy steel bars in diameters of 25mm, 26.5mm, 32mm, 36mm, 40mm, 50mm and 75mm provided with cold rolled threads for part or full length, together with a range of fittings. Bars from 25mm to 50mm diameter obtain their specified properties via a quenched and tempered process. Stainless steel Macalloy S1030 bars in diameters from 20mm to 40mm are made from precipitation hardened stainless steel.

Typical Macalloy bar system applications include:


Prestressed beams and columns Precast connections Temporary bracing


  • Stay cables and hangars
  • Precast segments Strengthening (timber and steel bridges)
  • Tension piles and caissons

Wharves and Jetties

  • Stressed deck planks
  • Tie backs

Soil and rock anchors

  • Permanent and temporary anchors
  • Uplift anchors (dam and foundation)
  • Tunnel roof bolting
  • Soil nails and rock bolts
  • Slope stabilisation
  • Crane and tower bases

Specialist Engineering

  • Heavy lifting
  • Formwork ties and hangars
  • Frame ties
  • Pile testing
  • Architectural ties and stays

For sales information please contact 1300 775 477