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Performance Requirements Of SMC/BMC ( Standard:GB/T23641 -2009 / UP-SMC) (GF15.G-DF20.G)


PropertiesUnitGF15.GGF20.G
Tensile modulus of elasticityMpa≥7000≥8000
Tensile stress at breakMpa≥40≥45
Tensile strain at break%≥1.2≥1.5
Modulus of elasticity in compressionMpa≥8000≥8500
Compression strengthMpa≥140≥140
Flexural modulusMpa≥7000≥8500
Flexural strengthMpa≥100≥120
Impact strength with simple beamKJ/m2≥35≥40
(Tff 1.8) Load deformation temperature≥180≥180
Coefficient of linear thermal expansion10-6/K≤18≤18
Temperature exponent≥130≥130
Electric strengthKV/mm≥22≥22
(100HZ) Relative permittivityN/AN/A
(100HZ) Dielectric power factor≤0.02≤0.02
Dielectric resistanceΩ≥1.0×1013≥1.0×10^13
Volume resistivityΩ • m≥1.0×10”≥1.0×10”
Surface resistivityΩ≥1.0×1012≥1.0×10^12
Proof Tracking Index≥600≥600
Proof Tracking≥1 A2.5≥1 A2.5
Arc resistances≥180≥180
Combustibility≥HB-40≥HB-40
Incandescent method≥BH2-95≥BH2-95
Oxygen index%≥22≥22
Glow-wire ignitability test°C≥650≥650
Densityg/cm31.70-1.951.70-1.95
Mould Shrinkage%≤0.15≤0.15
Hydroscopicity%≤0.2≤0.2
Content of fiberglass%15±2.520±2.5

Performance Requirements Of SMC/BMC ( Standard:GB/T23641 -2009 / UP-SMC) (GF25.G-GF30.Q)


PropertiesUnitGF25.GGF30.Q
Tensile modulus of elasticityMpa≥8500≥10500
Tensile stress at breakMpa≥50≥70
Tensile strain at break%≥1.5≥1.4
Modulus of elasticity in compressionMpa>9000≥10500
Compression strengthMpa≥160≥165
Flexural modulusMpa≥9000≥10500
Flexural strengthMpa≥145≥165
Impact strength with simple beamKJ/m2≥50≥70
(Tff 1.8) Load deformation temperature≥180≥200
Coefficient of linear thermal expansion10-6/K≤18≤18
Temperature exponent≥130≥130
Electric strengthKV/mm≥21≥20
(100HZ) Relative permittivity≤4.5≤4.5
(100HZ) Dielectric power factor≤0.02≤0.02
Dielectric resistanceΩ≥1.0×10^13≥1.0×10^13
Volume resistivityΩ • m≥ 1.0×10^12≥1.0×10^12
Surface resistivityΩ≥1.0×10^12≥1.0×10^12
Proof Tracking Index≥600≥600
Proof Tracking≥1 A2.5≥1 A2.5
Arc resistances≥180≥180
Combustibility≥HB-40≥V0
Incandescent method≥BH2-95≥BH2-10
Oxygen index%≥22≥28
Glow-wire ignitability test°C≥650≥850
Densityg/cm31.70-1.951.70-1.95
Mould Shrinkage%≤0.15≤0.12
Hydroscopicity%≤0.2≤0.2
Content of fiberglass%25±2.532±2.5

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