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Durostone® UPR S19

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threaded rodscrew nutsheet
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Characteristics

  • High mechanical strength
  • High dielectric strength
  • Vinyl ester (VE) thermoset reinfored with e-glass fabric

Application Examples

Durostone® fasteners - Construction sector

Durostone® fasteners have a very low thermal conductivity compared with steel, which means they can be used to prevent cold bridges in the construction sector, such as when mounting façades. All Durostone® grades have a thermal conductivity of 0.3 W/mK, putting them on a par with mineral wool, which is used as an insulating material in construction.

Durostone® fasteners in the offshore sector

In offshore environments, oxidation of fasteners can rapidly happen, unless costly titanium or super duplex grades are used. An alternative to these are our Durostone® fasteners, which are not affected by oxidative degradation like steel. Durostone® fasteners offer high strength and are naturally corrosion resistant, as well as highly weather and chemical resistant, but also only weight approximately 75% less than an equivalent sized steel fastener.

Durostone® fasteners in the field of hydraulic engineering and port construction

Durostone® fasteners are particularly resistant to corrosive salt water and are very UV and weather-resistant. They are used in hydraulic engineering and harbour construction applications such as sea water desalination plants.

Technical Specifications Durostone® UPR S19

Test MethodUnitGuideline Value
DensityISO 1183g / cm31,95
Flexural strength ISO 178MPa470
Modulus of elasticity in flexion ISO 178MPa25000
Compressive strength ISO 604MPa450
Compressive strength IIISO 604MPa250
Tensile strength IIISO 527MPa400
Impact strength II (Charpy)ISO 179kJ / m2200
Test MethodUnitGuideline Value
Temperature indexIEC 60216T.I.155
Insulation classIEC 60085/F
Test MethodUnitGuideline Value
Water absorption (4mm thickness)ISO 62%0,1
Test MethodUnitGuideline Value
Electric strength 90°C under oil IEC 60243kV / mm15
Electric strength 90°C under oil IIIEC 60243kV/25mm75
Relative permittivity (50 Hz)IEC 60250εr 5
Specific surface resistanceIEC 60093Ω1010
Comparative tracking indexIEC 60112CTI600

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