Properties of Paliney® 500 - Invivo

The family of Paliney® In Vivo materials were developed as a cost effective alternatives to platinum and gold based alloys used for implantable and interventional medical devices. The materials exhibit equivalent mechanical, biocompatible (per ISO 10993) and radiopaque characteristics but typically cost less than half of the platinum or gold alloys they replace.

View Properties Table

Mechanical and Electrical Properties - Wire, 0.015 - 0.075

Properties of Paliney 500 Condition
Annealed Cold Worked Stress Relieved

Ultimate Tensile Strength (ksi)



65 - 105

Yield Strength (ksi)




Elongation (% in 2 in)

11 min


10 min

Hardness (Knoop)




Electrical Conductivity (%IACS, Nominal)




Physical Properties

Modulus of Elasticity (x 106 psi, Nominal)


Solidus (Deg C)


Density (dwt / in3, Nominal)


Coefficient of Linear Thermal Expansion (x 10-6 / oC ,  35 oC  to 500 oC)





Cytotoxicity- Elution Method (ISO 10993-5)

  • Result - no evidence of causing cell lysis or toxicity

Irritation and Sensitization - aqueous and organic extraction (ISO 10993-10)

  • Result - both aqueous and organic extractions
  • Primary irritation index was negligible for aqueous solvent, (0.0-0.5 for organic solvent)
  • No evidence of significant irritation from injected extract

Systemic Toxicity - aqueous and organic extraction (ISO 10993-11)

  • Result - both aqueous and organic extraction - no mortality and no evidence of systemic toxicity

In Vitro Hemolysis – aqueous extraction (modified ASTM) (ISO 10993-4)

  • Results - aqueous extraction (modified ASTM)
  • Mean hemolytic index is 0.0%
  • Test article extract is non-hemolytic

Muscle Implant – 2, 12 and 26 week exposure tests (ISO 10993-6)

  • Results - 2, 12 and 26 week rabbit implant tests - classified as non-irritant in all tests

The information contained in this Data Sheet is intended to assist you in the use of this product. It is not intended to and does not create any warranties, express or implied, including any warranty of merchantability or fitness for a particular application. The user should determine the suitability of this material for each application. Data is subject to change without notice.