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AISI 304L Stainless Steel Disk
Available Configurations
Properties common to all products in this list
Key Features
AISI 304L Stainless Steel Disk (UNS S30403) is a low-carbon austenitic stainless steel component with carbon held to 0.03 wt% maximum, ensuring resistance to weld sensitization and preserving intergranular corrosion resistance in welded or thermally processed assemblies:
Resistance to Weld Sensitization
Carbon held to 0.03 wt% maximum ensures resistance to weld sensitization, preserving intergranular corrosion resistance in welded or thermally processed assemblies where standard 304 would be vulnerable.
Full Corrosion Resistance, Strength & Machinability of the 18Cr-8-10Ni System
AISI 304L Disk provides the full corrosion resistance, mechanical strength, and machinability of the 18Cr-8-10Ni alloy system, with only the carbon content reduced relative to standard 304.
Dimensional Stability for High-Precision Applications
Dimensional stability and uniform thickness suit AISI 304L Disk to high-precision applications, including sensor housings and analytical instrument mounts where consistent geometry is essential.
Broad Industry Suitability
Industries including food processing, marine engineering, biomedical devices, and aerospace employ AISI 304L disks in sealing components, pump and valve parts, and analytical instrument mounts.
Process Requirement or Experimental Variable
The low-carbon composition functions either as a process requirement for welded or thermally processed assemblies, or as a deliberate experimental variable in research applications.
Industrial Applications
AISI 304L Stainless Steel Disk is used across food processing, marine engineering, biomedical, and aerospace sectors wherever weld sensitization resistance is required in a precision circular component:
- ✦ Sealing Components
- Used in sealing components, where the full corrosion resistance of the 18Cr-8-10Ni alloy system combined with resistance to weld sensitization ensures reliable performance in welded or thermally processed sealing assemblies.
- ✦ Pump & Valve Parts
- Used in pump and valve parts, where dimensional stability and uniform thickness combined with resistance to weld sensitization ensure reliable performance in welded or thermally processed assemblies.
- ✦ Sensor Housings
- Applied in sensor housings, where high-precision dimensional stability and the full corrosion resistance of the 18Cr-8-10Ni alloy system support reliable, accurate sensor performance.
- ✦ Analytical Instrument Mounts
- Used in analytical instrument mounts, where uniform thickness and dimensional stability provide the precision required for accurate instrument calibration and operation.
- ✦ Tribological & Corrosion Testing Research
- Serve as substrates for tribological studies, corrosion testing, and surface engineering experiments where the low-carbon composition is either a process requirement or an experimental variable.
Material Properties
| Element | Value |
|---|---|
| Elongation at break( % ) | 58 |
| Tensile strength( MPa ) | 565 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 72 |
| Temperature coefficient( K⁻¹ ) | - |
| Element | Value |
|---|---|
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 16.2@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 17.3@23°C |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Diameter | ±0.5mm |