AISI 321 Stainless Steel Disk

Formula: Fe/Cr 18/Ni 9/Ti

Form: Disk

Material: AISI 321 Stainless Steel

Commodity: Alloys

AISI 321 Stainless Steel disks are made from a ferritic stainless steel alloy and are available in 1447 size and finish variations. These disks provide corrosion resistance, heat resistance and strength for applications like food processing equipment, heat exchangers and chemical equipment. Their controlled alloy composition means you can choose the optimized material properties to suit your requirements. Plus, disks can be machined or formed into end-use components for challenging environments.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Disk

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

Material Properties for Alloys

Mechanical Properties

Element	Value
Hardness - Brinell	160-190
Elongation at break( % )	<60
Modulus of elasticity( GPa )	190-210
Izod impact strength( J m⁻¹ )	20-136
Tensile strength( MPa )	560

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	70-73
Temperature coefficient( K⁻¹ )	-

Thermal Properties

Element	Value
Maximum use temperature in air( C )	800
Melting point( C )	1400-1425
Thermal conductivity( W m⁻¹ K⁻¹ )	16.3@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	18@20-100°C

Physical Properties

Element	Value
Density( gcm⁻³ )	7.9

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AISI 321 Stainless Steel Disk

Tolerances

Material Properties for Alloys