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Makrolon? 3258

Manufacturer: Covestro
Produced At: Europe / China
Product Category: Polycarbonate（PC）
Product No: Makrolon 3258
Product Quantity: 25KG / BAG
Product Features: Biocompatible、Ethylene Oxide Sterilizable、Good Mold Release、High Viscosity、Steam Sterilizable

Product information

Makrolon? 3258

Polycarbonate

Covestro - Polycarbonates

Product Description:

MVR (300 °C/1.2 kg) 5.0 cm3/10 min; medical devices; suitable for ETO and steam sterilization at 121 °C; biocompatible according to many ISO 10993-1 test requirements; high viscosity; easy release; injection molding - melt temperature 280 - 320 °C; available in transparent and opaque colors

Features	Biocompatible，Ethylene Oxide Sterilizable， Good Mold Release，High Viscosity，Steam Sterilizable
Uses	Medical Devices，Medical/Healthcare Applications
Agency Ratings	ISO 10993-Part 1
RoHS Compliance	RoHS Compliant
Appearance	Clear/Transparent，Colors AvailableOpaque
Processing Method	Injection Molding

Physical	Nominal Value	Unit	Test Method
Density (73°F)	1.20	g/cm3	ISO 1183
Apparent (Bulk) Density 3	0.66	g/cm3	ISO 60
Melt Mass-Flow Rate (MFR) (300°C/1.2 kg)	5.5	g/10 min	ISO 1133
Melt Volume-Flow Rate (MVR) (300°C/1.2 kg)	0.305	in3/10min	ISO 1133
Molding Shrinkage
Across Flow	0.60 to 0.80	%	ISO 2577
Flow	0.60 to 0.80	%	ISO 2577
Across Flow : 0.0787 in 4	0.75	%	ISO 294-4
Flow : 0.0787 in 4	0.70	%	ISO 294-4
Water Absorption			ISO 62
Saturation, 73°F	0.30	%
Equilibrium, 73°F, 50% RH	0.12	%
Hardness	Nominal Value	Unit	Test Method
Ball Indentation Hardness	16400	psi	ISO 2039-1

Mechanical	Nominal Value	Unit	Test Method
Tensile Modulus (73°F)	348000	psi	ISO 527-2/1
Tensile Stress			ISO 527-2/50
Yield, 73°F	9570	psi
Break, 73°F	10200	psi
Tensile Strain			ISO 527-2/50
Yield, 73°F	6.2	%
Break, 73°F	120	%
Nominal Tensile Strain at Break (73°F)	> 50	%	ISO 527-2/50
Tensile Creep Modulus			ISO 899-1
1 hr	319000	psi
1000 hr	276000	psi
Flexural Modulus 5 (73°F)	348000	psi	ISO 178
Flexural Stress 5			ISO 178
73°F	13900	psi
3.5% Strain, 73°F	10600	psi
Flexural Strain at Flexural Strength 6 (73°F)	7.1	%	ISO 178
Impact	Nominal Value	Unit	Test Method
Charpy Notched Impact Strength 7			ISO 7391
-22°F, Complete Break	7.6	ft·lb/in2
73°F, Partial Break	38	ft·lb/in2
Charpy Unnotched Impact Strength			ISO 179/1eU
-76°F	No Break
-22°F	No Break
73°F	No Break
Notched Izod Impact Strength 8			ISO 7391
-22°F, Complete Break	9.5	ft·lb/in2
73°F, Partial Break	36	ft·lb/in2
Multi-Axial Instrumented Impact Energy			ISO 6603-2
-22°F	55.3	ft·lb
73°F	47.9	ft·lb
Multi-Axial Instrumented Impact Peak Force			ISO 6603-2
-22°F	1510	lbf
73°F	1300	lbf

Thermal	Nominal Value	Unit	Test Method
Heat Deflection Temperature
66 psi, Unannealed	282	°F	ISO 75-2/B
264 psi, Unannealed	261	°F	ISO 75-2/A
Glass Transition Temperature 9	297	°F	ISO 11357-2
Vicat Softening Temperature
--	298	°F	ISO 306/B50
--	300	°F	ISO 306/B120
Ball Pressure Test (282°F)	Pass		IEC 60695-10-2
CLTE			ISO 11359-2
Flow : 73 to 131°F	3.6E-5	in/in/°F
Transverse : 73 to 131°F	3.6E-5	in/in/°F
Thermal Conductivity 10 (73°F)	1.4	Btu·in/hr/ft2/°F	ISO 8302

Flammability	Nominal Value	Unit	Test Method
Flash Ignition Temperature	896	°F	ASTM D1929
Self Ignition Temperature	1022	°F	ASTM D1929

Optical	Nominal Value	Unit	Test Method
Refractive Index 11	1.587		ISO 489
Transmittance			ISO 13468-2
39.4 mil	89.0	%
78.7 mil	89.0	%
118 mil	88.0	%
157 mil	87.0	%
Haze (118 mil)	< 0.80	%	ISO 14782

Additional Information	Nominal Value
ISO Shortname	ISO 7391-PC,MR,(,,)-05-9

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Makrolon? 3258

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