Crastin® SK601 NC010

Alternative and trade names
Crastin® SK601 NC010


Common features of Crastin® thermoplastic polyester resin include mechanical and physical properties such as stiffness and toughness, heat resistance, friction and wear resistance, excellent surface finishes and good colourability. Crastin® thermoplastic polyester resin has excellent electrical insulation characteristics and high arc-resistant grades are available. Many flame retardant grades have UL recognition (class V-0). Crastin® thermoplastic polyester resin typically has high chemical and heat ageing resistance.The good melt stability of Crastin® thermoplastic polyester resin normally enables the recycling of properly handled production waste.If recycling is not possible, DuPont recommends, as the preferred option, incineration with energy recovery (-24 kJ/g of base polymer) in appropriately equipped installations. For disposal, local regulations have to be observed.Crastin® thermoplastic polyester resin typically is used in demanding applications in the electronics, electrical, automotive, mechanical engineering, chemical, domestic appliances and sporting goods industry.Crastin® SK601 NC010 is a 10% glass fiber reinforced, lubricated polybutylene terephthalate resin for injection molding.

Ashby charts

See where falls on the material property chart for Density against Elastic modulus in your materials selection and design process.



Density ρ

1.37 g/cm³ at 20 °C

ISO 1183

Friction coefficient µ

0.37 [-]

ASTM 1894 | 1h against steel

Melt mass-flow rate MFR

18 g/10min at 20 °C

ISO 1133 | 250°C/2.16kg

Melt volume-flow rate MVR

15 cm³/10min at 20 °C

ISO 1133

Shrinkage cshrink

0.7 % at 20 °C

ISO 294-4, 2577

Shrinkage, transverse cshrink, trans

1.2 % at 20 °C

ISO 294-4, 2577

Water absorption cwater

0.4 % at 20 °C

Sim. to ISO 62 | 80mil


Elastic modulus E

4.5 GPa at 20 °C

ISO 527-1/-2

Elongation A

4.7 % at 20 °C

ISO 527-1/-2

Flexural strength σbend

140 MPa at 20 °C

ISO 178

Impact strength, Charpy notched Ivnot

6 kJ/m² at -6 °C

ISO 179/1eA

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Impact strength, Charpy unnotched Iunnot

40 kJ/m² at -6 °C

ISO 179/1eU

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Impact strength, Izod notched IIzod,not

26 kJ/m² at -30 °C

ISO 180/1U

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Impact strength, Izod unnotched IIzod,unnot

5 kJ/m² at -30 °C

ISO 180/1A

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Poisson's ratio ν

0.36 [-] at 20 °C

Tensile strength Rm

90 MPa at 20 °C

ISO 527-1/-2


Coefficient of thermal expansion α

6E-5 1/K at 20 °C

ISO 11359-1/-2

Coefficient of thermal expansion, transverse αtrans

1.1999999999999999E-4 1/K at 20 °C

ISO 11359-1/-2

Electrical relative temperature index RTIel

130 °C

UL 746B | 240mil


Burning Behav. at 60mil nom. thickn.: HB class, Thickness tested: 1.5 mm, UL recognition: yes -, Burning Behav. at thickness h: HB class, Thickness tested: 0.75 mm, UL recognition: yes -, Oxygen index: 20 %, Glow Wire Ignition Temperature, 30mil: 750 °C, Glow Wire Ignition Temperature, 40mil: 750 °C, Glow Wire Ignition Temperature, 80mil: 750 °C, FMVSS Class: B -, Burning rate, Thickness 1 mm: 36 mm/min

Heat deflection temperature, 0.45 MPa HDT0.45,MPa

215 °C

ISO 75-1/-2

Heat deflection temperature, 1.80 MPa HDT1.8,MPa

175 °C

ISO 75-1/-2

Mechanical impact relative temperature index RTIimp

115 °C

UL 746B | 240mil

Mechanical strength relative temperature index RTIstr

120 °C

UL 746B | 240mil

Melting point Tm

225 °C

ISO 11357-1/-3 | 18°F/min

Specific heat capacity cp

1890 J/(kg·K) at 20 °C

of melt

Vicat softening temperature Tsoft

205 °C

ISO 306 | 90°F/h, 11 lbf


Comparative tracking index CTI

300 V at 20 °C

IEC 60112

Dielectric constant, 100Hz εr,100Hz

3.9 [-] at 20 °C

IEC 62631-2-1

Dielectric constant, 1MHz εr,1MHz

3.5 [-] at 20 °C

IEC 62631-2-1

Dielectric strength EDS

17 kV/mm at 20 °C

IEC 60243-1 | Short Time, 2mm

Dissipation factor, 100Hz ε''100Hz

2E-3 [-] at 20 °C

IEC 62631-2-1

Dissipation factor, 1MHz ε''1MHz

0.02 [-] at 20 °C

IEC 62631-2-1

Electrical resistivity ρel

1.00E+13 Ω·m at 20 °C

min. | IEC 62631-3-1

Technological properties


10% Glass Fiber

Processing methods

Drying Recommended: yes, Drying Temperature: 120°C, Drying Time, Dehumidified Dryer: 2-4h, Processing Moisture Content: ≤0.04%, Melt Temperature Optimum: 250°C, Min. melt temperature: 240°C, Max. melt temperature: 260°C, Mold Temperature Optimum: 80°C, Min. mold temperature: 30°C, Max. mold temperature: 130°C, Hold pressure range: ≥60MPa, Hold pressure time: 3s/mm, Back pressure: As low as possible, Ejection temperature: 170°C

This material data has been provided by Matmatch.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.