ARMCO® soft ingot Iron Disk

ARMCO® soft ingot Iron Disk exhibits exceptional purity and low carbon content, giving it outstanding magnetic permeability and minimal coercive force. Its superior ductility and toughness, combined with high thermal and electrical conductivity, make it highly adaptable for both mechanical and electromagnetic applications. Widely used in transformer cores, magnetic shielding structures, and motor components, it supports industries such as power generation, electronics, and advanced instrumentation. Precision devices, magnetic flux return paths, and electromagnetic testing systems benefit from its stable magnetic performance and formability. In research, ARMCO® soft ingot Iron Disk serves as a benchmark material for studying fatigue, thermal transitions, and magneto-mechanical effects. Its reliability and reproducibility cement its role as a critical material in both experimental and industrial magnetic engineering contexts.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Disc

Thickness	>0.05mm	±10%
Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	26
Crystal structure	Body centred cubic
Electronic structure	Ar 3d⁶ 4s²
Valences shown	2, 3, 4, 6
Atomic weight( amu )	55.847
Thermal neutron absorption cross-section( Barns )	2.56
Photo-electric work function( eV )	4.4
Natural isotope distribution( Mass No./% )	58/ 0.3
Natural isotope distribution( Mass No./% )	57/ 2.1
Natural isotope distribution( Mass No./% )	56/ 91.8
Natural isotope distribution( Mass No./% )	54/ 5.8
Atomic radius - Goldschmidt( nm )	0.128
Ionisation potential( No./eV )	2/ 16.18
Ionisation potential( No./eV )	5/ 75.0
Ionisation potential( No./eV )	4/ 54.8
Ionisation potential( No./eV )	3/ 30.65
Ionisation potential( No./eV )	1/ 7.87
Ionisation potential( No./eV )	Jun-99

Mechanical Properties

Element	Value
Hardness - Mohs	04-May
Material condition	Polycrystalline
Poisson's ratio	0.293
Bulk modulus( GPa )	169.8
Tensile modulus( GPa )	211.4
Izod toughness( J m⁻¹ )	Aug-16
Tensile strength( MPa )	180-210
Yield strength( MPa )	120-150

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	10.1@20@20°C
Temperature coefficient( K⁻¹ )	0.0065@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	1.98

Physical Properties

Element	Value
Boiling point( C )	2750
Density( gcm⁻³ )	7.87@20°C

Thermal Properties

Element	Value
Melting point( C )	1535
Latent heat of evaporation( J g⁻¹ )	6095
Latent heat of fusion( J g⁻¹ )	272
Specific heat( J K⁻¹ kg⁻¹ )	444@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	80.4@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	12.1@0-100°C