Alloy 52 Properties

alloy 52 properties physical mechanical expansion chemistry specificationsEd Fagan Inc. is pleased to supply you with a summary of Alloy 52 physical properties including specifications, mechanical, physical and chemical properties along with a common expansion data table for use when evaluating a glass or ceramic seal alloy.

For the past fifty years, Ed Fagan Inc. has grown to be the trusted global supplier for special purpose metals and alloys.  We stand behind the metals and alloys we sell by providing our customers with only quality materials,  courteous and proficient customer service teams backed by our staff metallurgist and dependable, on-time shipping.


Call us at 800-348-6268 with any questions you may have relating to any of our alloy properties and your next application. For an Alloy 52 data sheet, or any other Controlled Expansion Alloy data sheets, please go to our Alloys and Metals Literature Library section.

Alloy 52 Average Linear Coefficient of Thermal Expansion
Temperature Range, °CAlloy 52
UNS N14052
Temperature Range,°CAlloy 52
UNS N14052
30 to 30010.130 to 70011.7
30 to 400 9.930 to 80012.5
30 to 500 9.930 to 90013.3
30 to 60010.830 to 100014.2

For comparison linear coefficient of thermal expansion data on all of our controlled expansion, glass and ceramic sealing alloys, please refer to our Thermal Expansion Table.

Alloy 52 Physical Properties
Densitylb/cu in0.30
Specific Gravity8.3
Curie Temp°F986
Melting Point°F2600
Electrical ResistivityMicrohms-cm43
ohm-cir mil/ft260
Thermal ConductivityW/cm °C0.14
BTU-in/sq. ft-hr-°F97.0
Specific HeatCal/gm °C0.12
BTU/lbm- °F0.12
Thermal Expansionppm / °F (75°F to 842°F)5.5
ppm / °C (30°C to 400°C)9.9
Alloy 52 Mechanical Properties
Tensile Strengthksi80
Yield Strengthksi40
Elongation% in 2 in.35
Typical Hardness Ann.Rockwell HRB80
Modulus of ElasticityMpsi23
Alloy 52 Chemistry 
Nickel, nominal50.5
Manganese, max 0.60
Silicon, max 0.30
Carbon, max 0.05
Chromium, max 0.25
Cobalt, max*
Phosphorus, max 0.025
Sulfur, max 0.025
Aluminum, max 0.10
Nickel contents listed are nominal. The nickel contents of the alloy shall be adjusted by the manufacturer so that the alloys meet the requirements for thermal expansion. Alloy 52 is specifically intended to match lead (Pb) sealing glasses.
*Cobalt is present as an incidental element and shall be reported separately.
Ref: ASTM F30
Alloy 52 Specifications
ASTM F30MIL-1-23011 CL 2AMS 1-23011 CL 2UNS N14052

For additional information on specifications of the materials distributed by Ed Fagan Inc., please visit the websites of the international standards organizations that develops and publishes technical standards, ASTM International and ASM International.