Space. Simple form. Both mask a complexity inherent in tensile architecture. The structure in place, itself evidence of science and careful planning, stands to remind us of what can be achieved with the intelligent use of rods working together in tension. Be it a glazed curtain wall, a tensioned fabric roof, a simple yet elegant suspension bridge, or a cable net or grid structure, all can depend on rods as the primary load carrying elements. The results are structures of unique depth and openness, with large spans made possible by balancing the need for reduced self weight, with the application of minimalist and efficient high tensile rod tendons. This is lightweight tensile architecture and a Ronstan passion.

Description
The seamless stainless rod with optimal aesthetics, efficiency and performance.Lengths/Span
Up to 3.6m (11.8ft) for Ø6.35-12.70mm (0.250-0.500in.), Up to 6.0m (19.7ft) for Ø15.88-31.75mm (0.625-1.250in.), before joiners are required.Rod Diameters
6.35mm to 31.8mm (0.250in. to 1.250in.)Specific Features
- Minimalist design ensures compact neat details.
- Easy adjustment of the rod from one end without the need to rotate the bar.
- Clean polished stainless steel finish to withstand the harshest environments.
- Good strength to weight ratio allows the mass of your structure to be kept low while minimising material and transport costs.
- Good corrosion resistance and low maintenance due to material choice decreases the life cycle cost of the structure.
- 316 grade stainless steel with 94% average recycled content*.
- Range of surface finishes - Bright, Polished #7+Passivation, Satin, Polished #4. Others by request. Finishes to ASTM - A380/A967/B912.
*Source: UGITECH, France.
Mechanical Properties
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Ø 6.35 - 9.5 mm (Ø 0.250 - 0.374 in.) |
Ø 22.7 - 31.8 mm(Ø 0.500 - 1.252 in.) |

Description
A stainless rod solution for large diameter high load applications.Lengths/Span
Up to 6.0m (19.7ft) for Ø M12 - M16 (0.472-0.630in), Up to 7.5m (24.6ft) for Ø M20 - M42 (0.787-1.654in), Up to 6.0m (19.7ft) for Ø M48 - M64 (1.890-2.520in), before joiners/turnbuckles are required.Rod Diameters
M12 to M64 as standard. Larger sizes available on request.Specific Features
- Attractive tapered nut and recognisable “tear drop” fork for a simple elegant style that will not date.
- Simple connection detail of pin and fork minimising installation time.
- Satin finish stainless steel for a modern aesthetic. Other finishes available on request.
- Large range of diameters available to allow consistent detailing throughout a project.
- Austenitic material - high tensile strength, good cryogenic and
high temperature properties.
- Satin, Polished #4 or Bright, Polished #7. Others by request.
- Finishes to EN 10088-2.
- Threads to BS3643.
Mechanical PropertiesMinimum Yield Stress |
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Description
A simple and effective stainless rod for moderate loadsLengths/Span
Up to 3.6m (11.8ft) for Ø4.76 - 12.70mm (0.188 - 0.500in.), Up to 6.0m (19.6ft) for Ø15.88 - 31.75mm (0.625 - 1.250in.),before joiners are required.
Rod Diameters
4.76mm to 31.75mm (0.188in to 1.250in.)Specific Features
- An economical solution when the high level finish of stainless steel is required, providing affordable good looks.
- ARS3 - the perfect marriage of economy, strength and corrosive resistance.
- The proven design provides ageless integrity to your structure.
- 316 grade stainless steel.
- Range of surface finishes - #7 Polished and passivated (standard option), #4 Satin, electropolished. Others by request.
Mechanical Properties
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Ø 4.8 - 9.5mm (Ø0.189 - 0.374 in) |
Ø 12.7 - 31.8mm(Ø0.500 - 1.252 in) |

Description
An attractive carbon steel rod system of unparalleled tensile strengthLengths/Span
6.0m (19.6’) for diameters M10 (0.394”) to M16 (0.630”)9.0m (29.5’) for M20 (0.787”), and 11.95m (39.2’) up to M100 (3.940”)
before joiners are required
Rod Diameters
M10 (0.394”) to M100 (3.940”)Specific Features
- Highest load capacity of Ronstan’s Structural Carbon Steel Rods reducing the mass of your structure with flow on benefits in transport and construction costs.
- Large range of sizes to suit all applications allowing consistency in detailing throughout a project.
- Range of surface finishes - Galvanised to BS EN ISO 1461-1999 or raw finish allows for on-site painting matching ARS4 to your structure in colour and finish.
- Attractive tapered nut and recognisable “tear drop” fork for a simple detail that will not date.
- Simple connection detail of pin and fork minimising installation time and difficulty.
- A fine grain carbon steel.
Mechanical PropertiesMinimum Yield Stress |
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Description
The all purpose carbon steel rod systemLengths/Span
6.0m (19.6’) for diameters M10 (0.394”) to M16 (0.630”)9.0m (29.5’) for M20 (0.787”) to M90 (3.425")
11.95m (39.2’) up to M100 (3.940”)
before joiners are required
Rod Diameters
M10 (0.394”) to M100 (3.940”)Specific Features
- Large range of sizes to suit all applications allowing consistency in detailing throughout a project.
- Range of surface finishes - Galvanised to BS EN ISO 1461-1999 or raw finish allows for on-site painting matching ARS5 to your structure in colour and finish.
- Attractive tapered nut and recognisable "tear drop" fork for a simple detail that will not date.
- Simple connection detail of pin and fork minimising installation time and difficulty.
- A minimum yield stress of 460 N/mm² ensures that the system is approximately 30% stronger than standard grade S355 or lesser carbon steels.
Mechanical PropertiesMinimum Yield Stress |
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