Since many factors determine the selection of an alloy for inclusion in an application, Ed Fagan has compiled the typical properties of Alloy 46 (UNS K94600) for your reference. Contained in the tables below you will find the average linear coefficient of thermal expansion, physical and mechanical properties, chemical composition, along with specifications for Alloy 46.
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Alloy 46 Average Linear Coefficient of Thermal Expansion µm/m∙ °C
|Temperature Range °C||UNS K94600||Temperature Range °C||UNS K94600|
|30 to 300||7.5||30 to 700||10.7|
|30 to 350||7.1 to 7.8*||30 to 800||11.6|
|30 to 400||7.5||30 to 900||12.5|
|30 to 500||8.2 to 8.9*||30 to 1000||13.4|
|30 to 600||9.8|
|Source: ASTM F30-96 (2017), Table X1.1, 46 Alloy; *ASTM F30-96 (2017) Table 2|
To compare the linear coefficient of thermal expansion across our line of controlled expansion glass and sealing alloys, please refer to the Thermal Expansion Table.
Alloy 46 Typical Physical Properties
|Electrical Resistivity||ohm-cir mil/ft||277|
|Thermal Conductivity||BTU-in/sq. ft-hr-°F||79.2|
|Specific Heat||Cal/g °C||0.12|
|Source: ASTM International F30-96 (2017) | EFI Glass-to-metal sealing/Low expansion alloys data sheet v.1/98.|
Alloy 46 Typical Mechanical Properties
|Elongation||% in 2 in.||30|
|Typical Hardness Ann.||Rockwell HRB||80|
|Modulus of Elasticity||ksi||23|
|Source: ASTM International F30-96 (2017)|
Alloy 46 Chemistry
|*Cobalt is present as an incidental element.|
|Source: ASTM International F30-96, Table 1, 46 Alloy|
Alloy 46 Specifications
|ASTM F30||MIL-1-23011 CL 4||AMS 1-23011 CL 4||UNS K94600|