Ultramid® A4H

About
A high heat aging resistant, medium viscosity injection moulding grade for highly stressed parts such as bearing cages, gear-wheels, coil formers and cable connectors.&&

Product Description
SupplierBASF
GenericPA66
Material StatusCommercial: Active
FeaturesGrease resistance,Good heat aging resistance
AvailabilitysEurope,Asia Pacific
Process MethodsInjection Molding

Technical Data
handleNominal valueUnitTest method
Melting temperature260°CISO 11357-1/-3
Melting temperature280-300
Mold temperature60-80°C

FLAME CHARACTERISTICSNominal valueUnitTest method
1.6 mmV-2IEC 60695-11-10
>= 1mm +FMVSS 302

MECHANICALNominal valueUnitTest method
Tensile modulus3100/1200MPaISO 527-1-2
Tensile stress85/50MPaISO 527-1/-2
yield4.2/20%ISO 527-1/2
Tensile fracture25/>50%ISO 527-1/-2
Tensile modulus
1000h, strain<=0.5%, 23 ℃*/700MPaISO 899-1
Bending modulus3000/-MPaISO 178

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa75ISO 75-1/2
0.45 MPa250ISO 75-1/2
Maximum operating temperature
Short cycle operation200°C
Temperature index 5000 hours after 50% loss of tensile strength138°CIEC 60216
Temperature index after a 50% loss in tensile strength for 20000 hours118°CIEC 60216
Linear thermal expansion coefficient
MD 23-80°C70-100E-6/KISO 11359-1/-2
Thermal conductivity0.33w(mk)DIM52612-1
Specific heat capacity1700J/(kg*K)

Electrical performanceNominal valueUnitTest method
1 MHz3.2/5IEC 60250
1 MHz250/2000E-4IEC 60250
Surface resistivity1E+13ohmsIEC 60093
Volume resistivity*/1E10OhmIEC 60093

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃5.7/25kJ/m²ISO 179/1eU
23℃N/NkJ/m²ISO 179/1eU
23℃5.5/NkJ/m²ISO 180-A

PHYSICALNominal valueUnitTest method
Melt Volume Rate
275℃,5 kg40cm³/10minISO 1133
Shrinkage rate
Restricted 30.9%
Density1.130g/cm³ISO 1183
Viscosity value190g/cm³ISO 307, 1157, 1628
Water absorption rate
saturated8.0-9.0%ISO 62

Notes
1. Typical properties: these are not to be construed as specifications.
2. Test box with central gating, dimensions of base (107*47*1,5) mm, processing conditions: TM = 290°C, TW = 60°C
3. strain <= 0.5%, 23°C
4. 5000 h
5. 20000 h
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