Hiperco® 50A | Datasheet

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Fabrication and Heat Treatment
     Machinability
     Forming
     Heat Treatment
     Cold Working
     Annealing
Applications

Introduction

Super alloy or high performance alloys have good creep and oxidation resistance, and are available in different forms. Cobalt-based, nickel-based, and iron-based alloys are three groups of super alloys. They can function under high temperatures and mechanical stress. They are also utilized where high surface stability is required. They were primarily developed for jet engines as they require very high operating temperatures.

Hiperco alloy 50' is a soft magnetic alloy. It can be easily cracked while forging. The following datasheet gives an overview of Hiperco alloy 50'.

Chemical Composition

The chemical composition of Hiperco alloy 50' is given in the following table.

Elements Content (%) Iron, Fe 49 Cobalt, Co 48.75 Vanadium, V 1.9 Manganese, Mn 0.05 Niobium, Nb 0.05 Silicon, Si 0.05 Carbon, C 0.01

Physical Properties

The following table shows the physical properties of Hiperco alloy 50'.

Properties Metric Imperial Density 8.12 g/cm³ 0.293 lb/in³

Mechanical Properties

The mechanical properties of cold rolled Hiperco alloy 50' are outlined in the following table.

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Properties Metric Imperial Tensile strength MPa psi Yield strength (@ strain 0.200%) MPa psi Elongation at break (in 50 mm) 1% 1% Hardness, Brinell (estimated from Rockwell C for kg load, 10 mm ball Brinell measurement) 334 334 Hardness, Knoop (converted from Rockwell C ) 363 363 Hardness, Rockwell C 36 36 Hardness, Vickers (estimated from Rockwell C) 349 349

Thermal Properties

The thermal properties of Hiperco alloy 50' are displayed in the following table.

Properties Metric Imperial Thermal expansion co-efficient (@ 25-200°C/77-392°F) 9.50 µm/m°C 5.28 µin/in°F Thermal conductivity 29.8 W/mK 207 BTU in/hr.ft².°F

Other Designations

Other designation equivalent to Hiperco alloy 50' is ASTM A801 alloy type 1.

Fabrication and Heat Treatment

Machinability

Hiperco alloy 50' is not produced in machinable forms.

Forming

Hiperco alloy 50' is very difficult to form due to the presence of high cobalt content.

Heat Treatment

Hiperco alloy 50' is heat treated at 838°C (°F) for 2 h in pure hydrogen followed by slowly cooling at 83 to 94°C (180 to 200°F)/ h.

Cold Working

Hiperco alloy 50' has high work hardening rate

Annealing

Hiperco alloy 50' has good magnetic and physical properties such as high permeability, low DC coercive force, and high saturation flux density at high inductions.

Applications

Hiperco alloy 50' is used in the following applications:

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• Transducers
• Motor laminations
• Transformer
• Poles and cores
• Head laminations