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GEHR PEEK® 30CF

GEHR PEEK® 30CF is a variant of PEEK modified with 30 % carbon fibers. As with the glass-fiber reinforced type, the surface hardness and heat deflection temperature are also significantly increased compared to the already high values of the unreinforced standard type. This material owes its significantly increased dimensional stability to its extremely low coefficient of linear expansion. The electrical properties are influenced by the high proportion of carbon fibers and must be taken into account in the relevant applications.

Properties

Physical Form
Rods

Other characteristics

Brand
GEHR PEEK
Color
Black
Density
1300.0 - 1550.0 kg/m³
Features

Chemical Resistant, Creep Resistant, Dimensional Stability, Excellent Hydrolysis Resistance, Excellent Mechanical Strength, Excellent Surface Hardness, Good Thermal Stability, High Heat Deflection Temperature, High Rigidity, Odorless, Radiation Resistant

Polymer Name
Polyetheretherketone (PEEK)
Reinforcement Material
Carbon Fibers
Odor
Odorless
Markets
  • Consumer Goods
  • Electrical & Electronics
  • Industrial
Storage

The products shall be stored indoor to keep away from any source of degradation such as sunlight, UV-jets, ionizing radiation, chemicals.

Machining

The product can be machined with standard machinery and tools. Before machining the product should be stored at room temperature 24 h. Evacuate swarf to prevent slipping or tripping. Observe the maximum allowable concentration of dust and formaldehyd levels on the working area which apply in your country. Wear safety goggles during machining. General dust limit value: Respirable dust (6 mg/m3); Inhalable dust (10 mg/m3 ).

Properties
  • Very high mechanical strength
  • Very high rigidity (also at low temperature)
  • Very high thermal stability
  • Very high creep resistance
  • Very high dimensional stability
  • Very high radiation resistance
  • Very high hydrolysis resistance
  • Relatively low notch impact strength
Flame Rating
UL 94 V0
Insoluble In
Water
Technology
  • Composite Materials
  • Plastics
Labeling Claims
Odor-free
Safety Measures

The general industrial safety measures should be considered. A thermal damage during machining should be avoided.

Fillers Included
Carbon Fiber
Form and Condition
Rods. Sheets / Solid
Material Features
  • Chemical Resistant
  • Creep Resistant
  • Dimensional Stability
  • Excellent Hydrolysis Resistance
  • Excellent Mechanical Strength
  • Excellent Surface Hardness
  • Good Thermal Stability
  • High Heat Deflection Temperature

Technical data

Table 1 of 6

10 rows
CharacteristicValueUnitMethod
Tensile Strength at Yield122MPaISO 527
Elongation at Yield (S)7%ISO 527
Tensile Strength at Break122MPaISO 527
Elongation at Break (R)7%ISO 527
Impact Strength (an)50kJ/m2ISO 179
Notch impact Strength (ak)5kJ/m2ISO 179
Ball Indentation (Rockwell Hardness)312 (M 102)MPaISO 2039
Hardness92Shore DISO 868
Flexural Strength (B 3,5 %)193MPaISO 178
Modulus of elasticity (Et)6800MPaISO 527

Table 2 of 6

5 rows
CharacteristicValueUnitMethod
Specific Gravity1.4—ISO 1183
Water Absorption0.35%ISO 62
Humidity Absorption0.16%ISO 62
Maximum Permissible Service Temperature260°CUL746B
Lower Permissible Service Temperature-20°CUL746B

Table 3 of 6

5 rows
CharacteristicValueUnitMethod
Heat Deflection Temperature (HDT/A)336°CISO 75
Coefficient of Linear Thermal Expansion0.25K-1.10-4ISO 11359
Thermal Conductivity (20°C)0.9W/(m.K)ISO 22007-4
Glass Transition Temperature (Tg)143°CISO 3146
Melting Temperature (Tm)343°CISO 3146

Table 4 of 6

3 rows
CharacteristicValueUnit
Density1.30 - 1.55g/cm³
Melting Temperaturemin. 330°C
Ignition Temperaturemin. 590°C

Table 5 of 6

2 rows
CharacteristicValueUnitMethod
Volume Resistivitymin. 10^5Ω.cmIEC 60093
Surface Resistivity (Ro)min. 10^5ΩIEC 60093

Table 6 of 6

5 rows
CharacteristicValueUnitMethod
BondabilityYes——
Physiological IndifferenceYes—EEC
FlammabilityV-0—UL 94
Limiting Oxygen Index (LOI, 9)40%ASTM D2863
UV Stabilisation (6, 9)Yes/Limited——

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