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Durostone® EPR S1

GFK-EP

threaded rod
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Characteristics

  • High mechanical strength
  • High dielectric strength

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® EPR S1

Test MethodUnitGuideline Value
DensityISO 1183g / cm31,9
Flexural strength ISO 178MPa500
Modulus of elasticity in flexion ISO 178MPa20000
Compressive strength ISO 604MPa300
Tensile strength IIISO 527MPa400
Impact strength II (Charpy)ISO 179kJ / m2100
Delamination force IIDIN 53463N4000
Test MethodUnitGuideline Value
Thermal conductivity W / (m * K)0,3
Coefficient of linear expansion IITMA (Mettler)10-6 x K-110 - 20
Temperature indexIEC 60216T.I.180
Insulation classIEC 60085/H
Test MethodUnitGuideline Value
Electric strength 90°C under oil IEC 60243kV / mm13
Relative permittivity (50 Hz)IEC 60250εr 5
Specific surface resistanceIEC 60093Ω1013
Specific volume resistanceIEC 60093Ω x cm1014
Comparative tracking indexIEC 60112CTI225

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