
Grade 2 Titanium Flange Nuts
Commercially pure Grade 2 titanium flange nuts for corrosion-resistant joints requiring an integrated bearing flange. Plain, serrated or drawing-specific configurations are supplied to the required thread and inspection plan.
- Material
- Grade 2 / UNS R50400
- Types
- Plain, serrated or drawing-specific
- Threads
- Metric, UNC, UNF or drawing
- Documents
- MTC, traceability and dimensional report
Product Detail
Product Introduction
Grade 2 flange nuts combine a hex nut body with an integrated flange that distributes bearing load over a wider area. Joint approval must define whether the flange is plain or serrated, the mating surface, thread tolerance, torque method, reuse policy and corrosion environment.
Product Specifications
| Product | Grade 2 Titanium Flange Nuts | Material | Titanium Grade 2 (UNS R50400) |
|---|---|---|---|
| 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 resistance to rotation.
- Serrated flange: Requires validation against the mating surface, coating, reuse policy and permitted surface marking.
- Mating joint: Specify bolt material, thread tolerance, bearing surface, lubrication and installation torque procedure.
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 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 2 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 2 Titanium Flange Nuts?
DIN 6923, ISO 4161 and ASME B18 references may be reviewed for dimensional geometry when expressly specified. They do not by themselves establish Grade 2 titanium chemistry, mechanical properties or finished-nut acceptance requirements.
How are Grade 2 Titanium Flange Nuts inspected?
Available inspection includes MTC review, across-flats, height and flange diameter measurement, serration inspection where applicable, thread gauging, visual examination and heat/lot traceability.
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