
Grade 2 Titanium Belleville Washers
Grade 2 Titanium Belleville Washers with conical disc-spring geometry for compact axial spring force, preload compensation and drawing-defined assemblies. Dimensions, condition, working requirement and inspection follow the approved order.
- Material
- Grade 2 / UNS R50400
- Form
- Conical disc spring washer
- Dimensions
- Metric, inch or approved drawing
- Documents
- MTC and dimensional inspection
Product Detail
Product Introduction
Grade 2 Titanium Belleville Washers are conical disc springs that deflect under axial load. Their useful force-deflection curve depends on outside and inside diameter, thickness, free cone height, material condition, manufacturing route and stack arrangement. Titanium grade alone does not establish spring rate or fatigue life.
Product Specifications
| Product | Grade 2 Titanium Belleville Washers | Material | Titanium Grade 2 / UNS R50400 |
|---|---|---|---|
| Product Form | Flat, split-lock or drawing-specific washer | Typical Inquiry Range | For M2 to M36 fasteners in typical inquiries; custom ID, OD and thickness by review |
| Dimensional References | ISO 7089/7090, DIN 125, ASME B18.21 or approved drawing | Threads / Dimensions | Metric coarse or fine, UNC, UNF or drawing-specific as applicable |
| Surface | Machined and cleaned; lubricant, anti-galling treatment or coating by agreement | Documents | MTC, heat/lot traceability and dimensional inspection report |
| Inspection | Dimensions, thread gauging, surface and agreed functional or mechanical tests | Supply Basis | Approved purchase order, invoked standard and drawing |
Typical inquiry ranges are not a stock guarantee. Final manufacturability, tolerances and test requirements are confirmed against the complete RFQ.
Selection and Configuration
- Load and deflection: State the required force at working deflection, maximum deflection, allowable set and operating travel.
- Disc geometry: Define OD, ID, thickness, free height, edge condition, flatness reference and tolerances.
- Stack arrangement: Identify single, series, parallel or combined stacking and the available guide, seating and lubrication conditions.
Send a drawing or complete fastener definition
Include dimensions, quantity, mating parts, service conditions, finish and inspection requirements.
Chemical Composition – Titanium Grade 2
Maximum weight percent unless shown otherwise; titanium is the balance.
| N max | C max | H max | Fe max | O max | Residual each / total | Ti |
|---|---|---|---|---|---|---|
| 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | 0.10 / 0.40 | Balance |
Mechanical Properties – Grade 2 Material Reference
| Property | Annealed Grade 2 Material Reference Minimum |
|---|---|
| Ultimate tensile strength | 345 MPa (50 ksi) |
| 0.2% yield strength | 275 MPa (40 ksi) |
| Elongation | 20% |
Material values do not automatically establish finished-fastener loadability. Finished-part acceptance depends on geometry, manufacturing route, condition and the expressly invoked fastener specification or drawing.
Typical Physical Properties
| Property | Typical Value |
|---|---|
| Density | 4.51 g/cm³ |
| Elastic modulus | Approximately 105 GPa |
| Poisson ratio | Approximately 0.34 |
| Thermal conductivity | Approximately 16.4 W/m·K |
| Coefficient of thermal expansion | Approximately 8.6 µm/m·K |
| Melting point | Approximately 1668°C |
Physical values are typical engineering references and are not inspection acceptance limits.
Certificates & Inspection Records

Services We Can Provide
Product Packaging
Grade 2 Titanium Belleville Washers are separated by size and lot, protected against thread and surface damage, and labeled with grade, dimensions, quantity and traceability reference. Inner bags, cartons and export cases are selected according to product geometry, quantity and shipping method.
Application Scenarios

Chemical Processing
Corrosion-resistant equipment joints selected against the complete process environment.

Power & Energy
Lightweight engineered assemblies requiring controlled dimensions and traceability.

Marine & Shipbuilding
Corrosion-resistant joints subject to galvanic, preload and service-condition review.
FAQ
Can a titanium Belleville washer use a steel spring table?
No. Force and deflection depend on material modulus, condition, geometry and manufacturing. Titanium parts require their own validated design and test criteria.
Can Belleville washers be stacked?
Yes, but series and parallel arrangements change load and deflection. Stack configuration, guides, seating and working travel must be specified.
What data is needed for quotation?
Provide grade, OD, ID, thickness, free height, required load at deflection, stack arrangement, quantity, fatigue duty, tests and certificates.
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