Comparison

PVC Rigid Pipe vs PA66

A side-by-side comparison of Rigid Polyvinyl Chloride for Pipe Applications and Polyamide 6,6 (Nylon).

Property

PVC Rigid Pipe

PA66

Physical

Density

1.30-1.45 g/cm³

1.14 g/cm³

Water Absorption (24h)

0.1-0.4 %

1.2 %

Transparency

Opaque

Shrinkage

0.5-1.5 %

1.5 – 2.0 %

Mechanical

Young's Modulus

2.5-4.0 GPa

3.0 GPa (dry)

Tensile Strength

45-60 MPa

80 MPa

Elongation at Break

5-20 %

60 %

Impact Strength (Izod)

20-50 J/m

50 J/m

Flexural Strength

—

110 MPa

Thermal

Glass Transition Temperature

70-80 °C

70 °C

Melting Point

N/A (degrades above 160°C)

255 – 265 °C

Continuous Service Temperature

50-60 °C

100 – 120 °C

Heat Deflection Temperature

60-70 °C

75 °C (unfilled)

Electrical

Dielectric Constant

3.0-3.5

4.0

Volume Resistivity

10¹¹-10¹³ Ω⋅cm

10¹² Ω·cm

Dielectric Strength

15-25 kV/mm

—

Chemical resistance

Acids

Excellent resistance

Poor

Bases

Excellent resistance

Good

Solvents

Attacked by ketones, esters, chlorinated and aromatic hydrocarbons

—

UV Resistance

Poor (requires stabilization)

Fair

Alcohols

—

Good

Oils & Fuels

—

Excellent

Sustainability

Recyclability

Recyclable

Recycling Code

3 (PVC)

Carbon Footprint

Moderate to High

~7.4 kg CO₂e / kg

Bio-based Content

—

0 – 100 % (bio grades)