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Introduction Pipe Composition Properties Advantages    
 
   
 
Hydrostatic Properties:

Property Test Method Value Unit
GRP GRV GRE
Ultimate Hoop Stress-Rupture ASTM D 1559 570 570 570 M Pa
Hydrostatic Design Basis (Uni-axial) ASTM D 2992 B 350 350 - M Pa
Hydrostatic Design Basis (Bi-axial) ASTM D 2992 B 138 138 172 M Pa
Hydrostatic Design Stress (Uni-axial) ASTM D 2992 B 175 175 - M Pa
Hydrostatic Design Stress (Bi-axial) ASTM D 2992 B 68 68 87 M Pa

Mechanical Properties:
Property Test Method Value Unit
GRP GRV GRE
Axial Tensile Stress ASTM D 2105 35 50 75 M Pa
Axial Tensile Modulus ASTM D 2105 13000 13000 15000 M Pa
Hoop Tensile Stress ASTM D 2290 250 250 300 M Pa
Hoop Tensile Modulus ASTM D 2290 24000 24000 30000 M Pa
Hoop Bending Modulus ASTM D2415 25000 25000 25000 M Pa
Pisson's Ration [Hoop loading] - 0.45 0.45 0.45 -
Poisson's Ratio [Axial loading] ASTM D 2412 0.65 0.65 0.65 -

Thermal & Physical Properties:
Property Value Unit
GRP GRV GRE
Coefficient of Linear Thermal Expansion 20X10E-6 20X10E-6 20X10E-6 M Pa
Specific Gravity 1.8 1.8 1.8 -
Glass content (by weight) 65 65 70 %
Hazen William Coefficient 150 150 150 -
Maximum Temperature 60 90 110 °C
Thermal Conductivity 0.3 0.3 0.3 W/m-K
Roughness factor (Including head loss over joints) 0.04 0.04 0.04 mm
Effective Roughness (only pipe) 0.0015 0.0015 0.0015 mm

Bi-axial values - 55 Deg. Winding angle
Uni-axial values - 63 Deg. Winding angle



 
 
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