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Sustamid® 6G - ASTM

PA — PA 6 G

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Characteristics

  • Good sliding properties
  • Self-lubricating
  • Low "stick-slip" effect

Industries

Application Examples

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Rollers

Thanks to their outstanding abrasion resistance, high mechanical strength and toughness, Sustamid® 6G rollers machined to close tolerances wear less than steel, require little maintenance and so offer a very long service life.

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Diablo rollers

During offshore pipe installation, metallic diablo rollers can lead to potential damage to the corrosion resistant coatings of pipelines. To help mitigate this, switch from metallic diablo rollers to Sustamid® 6G with the increased ductility of the engineering plastic limiting potential pipeline damage. Sustamid® 6G has additional benefits including a low coefficient of friction and excellent wear resistance as well as excellent impact resistance. Whilst also offering significant weight advantages compared to steel (approx. 1/7th the weight). Materials suitable for ATEX environments as well as self-lubricating forumalations are also possible.

Castors

Castors -Castors made of our materials Sustamid® 6G and Lamigamid® machined within tight tolerances are subject to less wear than steel because of their excellent abrasion resistance and high mechanical strength and toughness, are low-maintenance and thus make for a very long servicelife. We would be happy to advise and support you in selecting materials, designing and performing stress computations.

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Labyrinth seals

Labyrinth seals of Sustamid® 6G for the rotor bearing are resilient against lubricants, provide high dimensions stability and thus permit reliable minimisation of the lubrication loss in the long term.

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Sheaves & Sheave segments

Installation & retrieval of equipment from subsea environments leads to high demands placed on the metallic or synthetic cables. To help mitigate this, switch from metallic sheaves to Sustamid® 6G, as our range of Sustamid® materials can lead to an increase in the life of your cables. This is due to the low coefficients of friction and excellent wear resistance of Sustamid® materials, further enhanced by the excellent impact resistance, and significant weight reduction compared to steel (approximately 1/7th the weight). Materials available include grades suitable for ATEX environments as well as self-lubricating formulations.

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Sliding element for the jib

Sliding elements made of lubricant enriched cast polyamides make for a smooth extension motion of telescopic crane booms and equipment booms. They provide high strength and rigidity and facilitate extension with exceptionally good sliding properties. This material group includes our PA 6G materials Sustamid® 6G, Sustaglide®, Lamigamid® 319 and Lamigamid® 318.

Technical Specifications Sustamid® 6G - ASTM

Test MethodUnitGuideline Value
DensityASTM D792g / cm31.14
Water AbsorptionASTM D570%8.5
Water Absorption 24 hoursASTM D570%1
Test MethodUnitGuideline Value
HardnessASTM D2240Shore D78
Tensile Strength at yield 73°FASTM D638psi12000
Tensile ModulusASTM D638psi550000
Elongation at BreakASTM D638%25
Flexural StrengthASTM D790psi15000
Flexural ModulusASTM D790psi420000
Compressive StrengthASTM D695psi15500
Rockwell HardnessASTM D78585
Rockwell HardnessASTM D785R115
Shear StrengthASTM D732psi10500
Izod Impact, NotchedASTM D256ft-lb/in0.6
Coefficient of Friction, Dynamic0.22
Test MethodUnitGuideline Value
Thermal Conductivityin/hr/ft2 /°F1.7
Coefficient of Linear Thermal ExpansionASTM D696in/in/°F x10-54.5
Melting Point°F450
Melting PointASTM D3418°F450
Continuous Service Temperature, Air°F200
Flammability, UL941/8 inchHB
Deflection Temperature at 264psiASTM D648°F195
Deflection Temperature at 66psiASTM D648°F370
Test MethodUnitGuideline Value
Dielectric constantASTM D1501MHz3.8
Dielectric strengthASTM D149V/mil500
Surface resistivityASTM D257Ω/cm>1013
Test MethodUnitGuideline Value
FDAYes
NSFNo
USDAYes

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