90% Platinum - 10% Iridium (90Pt/10Ir)

General Alloy Overview

ASTM

ASTM B684

Application Examples

Medical Devices

Industry Examples

Medical

Tempers

Annealed, Wrought Hardened

Availible Forms

Rod, Strip

Temper Independent Properties

Parameter	Value	Value 2
Solidus, °F (°C)	3310	(1820)
Liquidus, °F (°C)	3360	(1850)
Melting Range, °F (°C)	50	(30)
Density, dwt/in³ (g/cm³)	225	(21.5)
Specific Heat Capacity, Btu/lb·°F, (J/g·K)	0.032	(0.13)
Coefficient of Thermal Expansion, /°F (/K)	4.8×10^-6	(8.7×10^-6)
Thermal EMF vs Pt, μV/°F (μV/°C)	6.7	(12)
Emissivity	0.347

Parameter	Value	Value 2
Thermal Conductivity, Btu/hr·ft·°F (W/m·k)	16.9	(29.2)
Temperature Coefficient of Resistance, /°F (/K)	9.7×10^-4	(1.8×10^-3)
Electrical Resistivity, Ω·cmf (µΩ·cm)	147	(24.5)
Electrical Conductivity, %IACS	7
Elastic Modulus, Msi (GPa)	29	(200)
Shear Modulus, Msi (GPa)	10.5	(73)
Poissons Ratio	0.378
Nobility, %	100

Temper Dependent Properties

Machining Grade - Rod 0.070 - 0.075 in. (1.75 - 1.9 mm) diameter

Parameter	Nominal	Min
	Nominal	Min
0.2% Offset Yield Strength, ksi (MPa)	†	(N/A)
Tensile Elongation to Failure, %	6	1
Vickers Microhardness, HV	†	(N/A)

Parameter	Nominal	Min
	Nominal	Min
Ultimate Tensile Strength, ksi (MPa)	80 (550)	70 (480)
Knoop Microhardness, HK	205	190

Work Hardened - Rod 0.075 - 0.125 in. (1.9 - 3.2 mm) diameter

Parameter	Nominal	Min
	Nominal	Min
0.2% Offset Yield Strength, ksi (MPa)	†	(N/A)
Tensile Elongation to Failure, %	7	1
Vickers Microhardness, HV	†	(N/A)

Parameter	Nominal	Min
	Nominal	Min
Ultimate Tensile Strength, ksi (MPa)	75 (515)	70 (480)
Knoop Microhardness, HK	205	190

Work Hardened - Strip 0.002 - 0.025 in. (0.05 - 0.64 mm) thickness

Parameter	Nominal	Min
	Nominal	Min
0.2% Offset Yield Strength, ksi (MPa)	†	(N/A)
Tensile Elongation to Failure, %	1	1
Vickers Microhardness, HV	†	(N/A)

Parameter	Nominal	Min
	Nominal	Min
Ultimate Tensile Strength, ksi (MPa)	110 (760)	70 (480)
Knoop Microhardness, HK	†	190

Annealed - Strip 0.004 - 0.015 in. (0.1 - 0.38 mm) thickness

Parameter	Nominal	Min
	Nominal	Min
0.2% Offset Yield Strength, ksi (MPa)	†	(N/A)
Tensile Elongation to Failure, %	10	10
Vickers Microhardness, HV	†	(N/A)

Parameter	Nominal	Min
	Nominal	Min
Ultimate Tensile Strength, ksi (MPa)	50 (345)	40 (275)
Knoop Microhardness, HK	†	120

† - Values containing † are available upon request

Contact A Specialist

Quick Contact

First Name

Last Name

Phone Number

Country

City

State

Zip

Market

Interest

Please tell us about your needs. Be as specific as possible.

File Upload

Choose File

I consent to have this website store my submitted information so they can respond to my inquiry

Cookie	Duration	Description
cookielawinfo-checkbox-analytics	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional	11 months	The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy	11 months	The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.