
Grade 5 Titanium Flange Nuts
High-strength Ti-6Al-4V flange nuts for lightweight joints requiring an integrated bearing flange. Plain, serrated and drawing-specific configurations are supplied by thread, dimensions and acceptance requirements.
- Material
- Grade 5 / Ti-6Al-4V / UNS R56400
- Types
- Plain, serrated or drawing-specific
- Threads
- Metric, UNC, UNF or drawing
- Documents
- MTC, traceability and dimensional report
Product Detail
Product Introduction
Grade 5 flange nuts combine a Ti-6Al-4V hex nut body with an integrated flange that distributes bearing load. The joint specification must define flange form, mating surface, thread tolerance, strength acceptance, lubrication, installation method and permitted reuse.
Product Specifications
| Product | Grade 5 Titanium Flange Nuts | Material | Titanium Grade 5 (Ti-6Al-4V, UNS R56400) |
|---|---|---|---|
| Product Form | Plain, serrated or drawing-specific flange nut | Typical Inquiry Range | M3 to M20 typical inquiry range; inch and custom sizes by review |
| Dimensional References | ISO 4161, DIN 6923, ASME/ANSI 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
- Plain flange: Provides a wider bearing surface without relying on serrations for rotational resistance.
- Serrated flange: Requires compatibility review for the mating surface, coating, reuse and permitted surface marking.
- Joint definition: Specify mating bolt material, property requirements, bearing surface, lubrication and torque procedure.
Send a drawing or complete fastener definition
Include dimensions, quantity, mating parts, service conditions, finish and inspection requirements.
Chemical Composition – Titanium Grade 5
Weight percent. Values are material limits; titanium is the balance.
| Al | V | Fe max | O max | C max | N max | H max | Residual each / total | Ti |
|---|---|---|---|---|---|---|---|---|
| 5.50–6.75 | 3.50–4.50 | 0.40 | 0.20 | 0.08 | 0.05 | 0.015 | 0.10 / 0.40 | Balance |
Mechanical Properties – Grade 5 Material Reference
| Property | Annealed Grade 5 Material Reference Minimum |
|---|---|
| Ultimate tensile strength | 895 MPa (130 ksi) |
| 0.2% yield strength | 828 MPa (120 ksi) |
| Elongation | 10% |
| Reduction of area | 25% |
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 | 4.43 g/cm³ |
| Elastic modulus | Approximately 114 GPa |
| Poisson ratio | Approximately 0.34 |
| Thermal conductivity | Approximately 6.7 W/m·K |
| Coefficient of thermal expansion | Approximately 8.6 µm/m·K |
| Melting range | Approximately 1604–1660°C |
Physical values are typical engineering references and are not inspection acceptance limits.
Certificates & Inspection Records

Services We Can Provide
Product Packaging
Grade 5 Titanium Flange Nuts 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
What information is required to quote Grade 5 Titanium Flange Nuts?
Provide the titanium grade, product form, dimensional standard or drawing, thread or critical dimensions, quantity, surface treatment, mating parts, service conditions and required inspection documents.
Which standards apply to Grade 5 Titanium Flange Nuts?
DIN 6923, ISO 4161 and ASME B18 references may define dimensional geometry. The order must separately establish Grade 5 / Ti-6Al-4V condition and applicable ASTM F467/F467M finished-nut requirements.
How are Grade 5 Titanium Flange Nuts inspected?
Available inspection includes MTC review, across-flats, height and flange diameter measurement, serration inspection, thread gauging, visual examination, specified mechanical testing and heat/lot traceability.
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