Physical Properties

Physical Properties

GF Harvel uses its own custom blend of PVC compound to ensure that desirable physical properties are maintained with every production run. GF Harvel PVC piping exhibits exceptional consistent quality with uniform properties; making it the preferred choice of fabricators and custom houses. GF Harvel's product line has grown to include standard and custom extrusions of PVC pipe in schedules 40, 80, and 120; as well as SDR series pipe produced to 13.5, 21, 26 and 41 dimensions.

In addition to a full range of sizes, GF Harvel also offers various options including: belled end, gasketed, roll grooved, and threaded pipe ends, as well as custom dimensions and lengths. GF Harvel PVC pipe is ideal for numerous applications including chemical processing, high purity applications, water and waste water treatment, potable water systems, agricultural, irrigation, plating, and many other industrial applications involving corrosive fluid transfer.

GENERAL Value Test Method
Cell Classification12454ASTM D1784
Maximum Service Temp.140°F 
ColorWhite, Dark Gray
Specific Gravity, (g/ @ 73°F)1.40 +/-.02ASTM D792
Water Absorption % increase 24 hrs @ 25°C0.05ASTM D570
Hardness, Rockwell110 - 120ASTM D785
Poisson's Ratio @ 73°F0.41 
Hazen-Williams FactorC =150 
Tensile Strength, psi @ 73°F7,450ASTM D638
Tensile Modulus of Elasticity, psi @ 73°F420,000ASTM D638
Flexural Strength, psi @ 73°F14,450ASTM D790
Flexural Modulus, psi @ 73°F360,000ASTM D790
Compressive Strength, psi @ 73°F9,600ASTM D695
Izod Impact, notched, ft-lb/in @ 73°F0.75ASTM D256
Coefficient of Linear Expansion (in/in/°F)2.9 x 10-5 ASTM D696
Coefficient of Thermal Conductivity3.5 x 10-4 ASTM C177






Heat Deflection Temperature Under Load (264 psi, annealed)170ASTM D648
Specific Heat, Cal./°C/gm0.25ASTM D2766
Dielectric Strength, volts/mil1,413ASTM D149
Dielectric Constant, 60Hz, 30°F3.7ASTM D150
Volume Resistivity, ohm/cm @ 95°C1.2 x 1012 ASTM D257
GF Harvel PVC Pipe is non-electrolytic
Flammability RatingV-0UL-94
Flame Spread Index<10 
Flame Spread0-25ULC
Smoke Generation80-225ULC
Flash Ignition Temp.730°F 
Average Time of Burning (sec.)<5ASTM D635
Average Extent of Burning (mm)<10 
Burning Rate (in/min)Self Extinguishing
Softening Starts (approx.)250°F 
Material Becomes Viscous350°F 
Material Carbonizes425°F 
Limiting Oxygen Index (LOI)43ASTM D2863
Clean Room Materials Flammability TestN/AFM 4910