Properties and Values of Polyamides

	Property	PA 6	PA 66	PA 11/12	PA 46	PA 6/10	PPA
Chemical Resistance
Dioctylphtalate @ 100%, 60°C	-	-	Satisfactory	-	-	-
Ethanol @ 96%, 20°C	-	-	Satisfactory	-	-	-
Glycerol @ 100%, 20°C	-	-	Satisfactory	-	-	-
Grease @ 20°C	-	-	Satisfactory	-	-	-
Hydrogen peroxide @ 30%, 60°C	-	-	Non Satisfactory	-	-	-
Kerosene @ 20°C	-	-	Satisfactory	-	-	-
Methanol @ 100%, 20°C	-	-	Satisfactory	-	-	-
Methylethyl ketone @ 100%, 20°C	-	-	Satisfactory	-	-	-
Mineral oil @ 20°C	-	-	Satisfactory	-	-	-
Phenol @ 20°C	-	-	Non Satisfactory	-	-	-
Silicone oil @ 20°C	-	-	Satisfactory	-	-	-
Soap @ 20°C	-	-	Satisfactory	-	-	-
Sodium hydroxide @ <40%, 20°C	-	-	Satisfactory	-	-	-
Sodium hydroxide @ <40%, 60°C	-	-	Limited	-	-	-
Sodium hydroxide @ 10%, 20°C	-	-	Satisfactory	-	-	-
Sodium hydroxide @ 10%, 60°C	-	-	Limited	-	-	-
Sodium hypochlorite @ 20%, 20°C	-	-	Limited	-	-	-
Toluene @ 20°C	-	-	Satisfactory	-	-	-
Xylene @ 20°C	-	-	Satisfactory	-	-	-
Gasoline	-	-	Satisfactory	-	-	-
Acetone @ 100%, 20°C	-	-	Satisfactory	-	-	-
Ammonium hydroxide @ 30%, 20°C	-	-	Satisfactory	-	-	-
Benzene @ 100%, 20°C	-	-	Limited	-	-	-
Butylacetate @ 100%, 20°C	-	-	Satisfactory	-	-	-
Butylacetate @ 100%, 60°C	-	-	Satisfactory	-	-	-
Chloroform @ 20°C	-	-	Non Satisfactory	-	-	-
Dioctylphtalate @ 100%, 20°C	-	-	Satisfactory	-	-	-
Electrical
Arc Resistance, sec	118-125	130-140	-	-	120	-
Dielectric Constant	4-5	4-5	-	3.4-3.8	3-4	4.3
Dielectric Strength, kV/mm	10-20	20-30	-	15-25	16-26	20.8-209
Dissipation Factor x 10^-4	100-600	100-400	-	190-600	40	270
Volume Resistivity x 10¹⁵, Ohm.cm	14	14	-	15	14	15
Mechanical
Elongation at Break, %	200-300	150-300	-	160-300	150-300	2.6-30
Elongation at Yield, %	3.4-140	3.4-30	-	-	-	6
Flexural Modulus, Gpa	0.8-2	0.8-3	-	1-3.2	1-2	2.1-3.7
Hardness Rockwell M	30-80	30-80	-	92	1-50	-
Hardness Shore D	80-95	80-95	-	-	60-85	-
Strength at Break (Tensile), MPa	50-95	50-95	-	65-85	50-65	85
Strength at Yield (Tensile), MPa	50-90	45-85	-	65-85	50-65	-
Toughness (Notched Izod Impact at Room Temperature), J/m	50-160	50-1150	-	30-250	70-999	960-1065
Toughness at Low Temperature (Notched Izod Impact at Low Temperature), J/m	16-210	27-35	-	-	-	-
Young's Modulus, GPa	0.8-2	1-3.5	-	1-3.3	1-2	3.7
Optical
Gloss, %	130-145	65-150	-	-	-	-
Physical
Density, g/cm³	1.12-1.14	1.13-1.15	-	1.17-1.19	1.09-1.1	1.11-1.2
Glass Transition Temperature, °C	60	55-58	-	-	-	-
Shrinkage, %	0.5-1.5	0.7-3	-	1.5-2	1-1.3	1.5-2.2
Water Absorption 24 hours, %	1.6-1.9	1-3	-	1.3-3.7	0.4-0.6	0.36-0.75
UV Light Resistance	Fair	Poor	Fair	-	Fair	-
Sterilization Resistance (Repeated)	Poor	Poor	-	-	-	Good
Gamma Radiation Resistance	Fair	Fair	Fair	Fair	Fair	Good
Service Temperature
HDT @0.46 Mpa (67 psi), °C	150-190	180-240	-	-	160-175	-
HDT @1.8 Mpa (264 psi), °C	60-80	65-105	-	150-155	80-85	120-138
Max Continuous Service Temperature, °C	80-120	80-140	-	110-150	80-150	140
Min Continuous Service Temperature, °C	-40--20	-80--65	-	-40	-	-
Thermal
Coefficient of Linear Thermal Expansion x 10^-5, /°C	5-12	5-14	-	-	6-10	5.4
Thermal Insulation, W/m.K	0.24	0.25	-	0.3	0.21	-
Fire Resistance (LOI), %	23-26	21-27	-	24	23-27	-
Flammability, UL94	HB	HB	HB, V2	HB	V2	HB

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Polyamides Properties Comparison

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