Alloy 50

Do you need custom fasteners created with Alloy 50? Since our inception, Elgin Fastener Group has met every challenge of providing Quality, Timely, Cost-effective solutions for specialty fastener applications. Every product is built to your specifications, using your prints if necessary.

Below are the technical specifications of the Alloy 50 Bar Stock we have available to meet your needs.

Carpenter Hiperco® Alloy 50 Fe-Co-V Soft Magnetic Alloy, Cold Rolled

Subcategory: Cobalt Alloy; Electronic/Magnetic Alloy; Metal Key Words: ASTM A801 Alloy Type 1; Mil-A-47182; Carpenter Technology Corporation, Carpenter Steel Division; Cartech

Component Wt. %
C 0.01
Co 48.75
Fe 49
Mn 0.05
Nb 0.05
Si 0.05
V 1.9

Material Notes: Iron content calculated as remainder.

Hiperco® alloy 50 is an iron-cobalt-vanadium soft magnetic alloy which exhibits high magnetic saturation (24 kilogauss), high D.C. maximum permeability, low D.C. coercive force, and low A.C. core loss. This alloy is produced in strip form only and contains a small niobium addition for grain refinement during mill processing and final heat treatment of strip.

Hiperco alloy 50 strip has been used primarily in the manufacture of rotor and stator laminations in motors and generators for aircraft power generation applications. These laminations are stamped from cold rolled strip and must be final annealed in a protective atmosphere or vacuum environment at a temperature which will provide and optimum combination of mechanical and magnetic properties to withstand the high stresses encountered in service.

Hiperco 50 has the same nominal composition as Vanadium Permendur and Permendur V.

Hiperco® is a registered trademark of Carpenter Technology Corporation. Data provided by Carpenter Technology Corporation.

Physical Properties Metric English Comments
Density 8.12 g/cc 0.293 lb/in³
Mechanical Properties
Hardness, Brinell 334 334 Estimated from Rockwell C for 3000 kg load, 10 mm ball Brinell measurement.
Hardness, Knoop 363 363 Estimated from Rockwell C
Hardness, Rockwell C 36 36
Hardness, Vickers 349 349 Estimated from Rockwell C
Tensile Strength, Ultimate 1345 MPa 195000 psi
Tensile Strength, Yield 1275 MPa 185000 psi 0.2% Offset
Elongation at Break 1 % 1 % in 50 mm
Modulus of Elasticity 207 GPa 30000 ksi
Electrical Properties
Electrical Resistivity 4e-005 ohm-cm 4e-005 ohm-cm
Curie Temperature 940 °C 1720 °F
Thermal Properties
CTE, linear 20°C 9.5 µm/m-°C 5.28 µin/in-°F 25-200ºC
CTE, linear 250°C 10.1 µm/m-°C 5.61 µin/in-°F 25-400ºC
CTE, linear 500°C 10.5 µm/m-°C 5.83 µin/in-°F 25-600ºC
Thermal Conductivity 29.8 W/m-K 207 BTU-in/hr-ft²-°F