Titanium Grade 7 Fasteners are commercially pure titanium fasteners modified with a controlled addition of palladium to improve corrosion resistance, particularly in reducing and chloride-containing environments. Also known as Ti-0.2Pd Grade 7 Bolts and Screws, these fasteners combine titanium's low density, high corrosion resistance and good strength with enhanced resistance to localized corrosion.
We supply Titanium Grade 7 Palladium Alloy Fasteners in bolts, screws, nuts, washers, studs and other custom-machined forms for chemical processing, marine, petrochemical, pollution-control and other demanding applications. These fasteners are available as UNS R52400 Titanium Fasteners, Werkstoff 3.7235 Fasteners and DIN 3.7235 Screws, with dimensions and configurations manufactured according to project requirements.
What are Titanium Grade 7 Fasteners?
Titanium Grade 7 Fasteners are palladium-modified commercially pure titanium fasteners
identified by UNS R52400 and Werkstoff 3.7235. The addition
of approximately 0.12–0.25% palladium improves resistance to general, crevice and
localized corrosion, making Grade 7 suitable for chemical processing and aggressive wet
environments. Grade 7 material is commonly specified with a minimum yield strength of
approximately 275 MPa and minimum tensile strength of approximately
345 MPa, depending on the applicable product specification.
Table of Contents
- ➤ Titanium Grade 7 Fasteners Specifications
- ➤ Chemical Composition of Titanium Grade 7
- ➤ Mechanical Properties of Grade 7 Titanium Fasteners
- ➤ Types of Titanium Grade 7 Fasteners
- ➤ Titanium Grade 7 Fasteners Weight Chart
- ➤ Equivalent Grades of Titanium Grade 7
- ➤ Titanium Grade 7 Fastener Sizes and Dimensions
- ➤ Applications of Titanium Grade 7 Fasteners
- ➤ Titanium Grade 7 Fasteners Manufacturing Process
- ➤ Titanium Grade 7 Fasteners Stockist and Supplier in India
- ➤ Titanium Grade 7 Fasteners Exporter to USA
- ➤ Why Buy Ti-0.2Pd Grade 7 Fasteners From Us?
Titanium Grade 7 Fasteners Specifications
Our UNS R52400 Titanium Fasteners can be supplied in different configurations, sizes, thread forms and finishes according to customer drawings and applicable standards.
| Property | Titanium Grade 7 Fasteners |
|---|---|
| Material | Titanium Grade 7 |
| Common Alloy Name | Ti-0.2Pd / Ti-0.15Pd |
| UNS | R52400 |
| Werkstoff No. | 3.7235 |
| Palladium | 0.12–0.25% |
| Titanium | Balance |
| Density | Approx. 4.51 g/cm³ |
| Tensile Strength | Approx. 345 MPa minimum, specification dependent |
| Yield Strength | Approx. 275 MPa minimum, specification dependent |
| Elongation | Approx. 20% minimum, specification dependent |
| Product Standards | ASTM B348 / ASTM B381 and applicable fastener requirements |
| Fastener Requirement | ASTM F468 where applicable |
| Manufacturing | Cold heading, machining, forging or custom manufacturing |
| Condition | Annealed / as specified |
| Threads | Metric, UNC, UNF, BSW and special threads |
| Finish | Plain, machined, polished or as required |
Chemical Composition of Titanium Grade 7
| Element | Composition, % |
|---|---|
| Titanium | Balance |
| Palladium (Pd) | 0.12–0.25 |
| Iron (Fe) | 0.30 max |
| Oxygen (O) | 0.25 max |
| Carbon (C) | 0.08 max |
| Nitrogen (N) | 0.03 max |
| Hydrogen (H) | 0.015 max |
Mechanical Properties of Grade 7 Titanium Fasteners
Titanium Grade 7 Bolts and Screws provide a useful combination of moderate strength, low weight and high corrosion resistance. The following values are commonly associated with Grade 7 material specifications and should be checked against the exact fastener standard and size before engineering use.
| Mechanical Property | Typical / Minimum Value |
|---|---|
| Tensile Strength | 345 MPa min. |
| Yield Strength, 0.2% Offset | 275 MPa min. |
| Elongation | 20% min. |
| Density | 4.51 g/cm³ |
| Modulus of Elasticity | Approx. 112 GPa |
| Melting Range | Approx. 1649–1670°C |
Types of Titanium Grade 7 Fasteners
We offer different Titanium Grade 7 Fasteners for structural, piping, equipment and maintenance requirements.
➤ Titanium Grade 7 Bolts
Grade 7 bolts are used where a corrosion-resistant titanium fastening solution is required. Available configurations include hex bolts, heavy hex bolts, hex head screws, custom bolts and special-purpose bolting.
➤ Titanium Grade 7 Flange Bolts
Titanium Grade 7 Flange Bolts are designed for bolted flange connections where weight reduction and resistance to aggressive process environments are important. Dimensions, thread length and head configuration can be supplied according to the required flange assembly.
➤ Titanium Grade 7 Screws
Grade 7 screws can be supplied as socket head cap screws, machine screws, countersunk screws, pan head screws and custom-machined designs.
➤ Titanium Grade 7 Stud Bolts
Stud bolts are suitable for equipment and piping connections requiring controlled threaded engagement on both ends. Different thread combinations can be supplied to suit the assembly.
➤ Titanium Grade 7 Nuts and Washers
Matching Grade 7 nuts and washers can be supplied for complete titanium bolting assemblies. Using compatible materials helps maintain the corrosion-resistance requirements of the complete fastening system.
Titanium Grade 7 Fasteners Weight Chart
| Fastener Size | Approx. Titanium Weight* |
|---|---|
| M6 | 0.20–0.35 kg/m |
| M8 | 0.35–0.55 kg/m |
| M10 | 0.55–0.85 kg/m |
| M12 | 0.80–1.20 kg/m |
| M16 | 1.40–2.10 kg/m |
| M20 | 2.20–3.30 kg/m |
| M24 | 3.20–4.80 kg/m |
| M30 | 5.00–7.50 kg/m |
Equivalent Grades of Titanium Grade 7
| Standard / Designation | Equivalent |
|---|---|
| Titanium Grade | Grade 7 |
| UNS | R52400 |
| Werkstoff | 3.7235 |
| DIN | 3.7235 |
| Common Description | Ti-0.2Pd / Ti-0.15Pd |
| ASTM Material Family | Titanium Grade 7 |
| Forging Designation | ASTM B381 Grade F-7 |
Titanium Grade 7 Fastener Sizes and Dimensions
We can supply UNS R52400 Titanium Fasteners in standard and non-standard dimensions based on customer requirements.
Available configurations include:
- Metric sizes from small diameter machine screws to large custom fasteners
- UNC and UNF threads
- Hex bolts and flange bolts
- Stud bolts and threaded rods
- Socket head cap screws
- Machine screws
- Countersunk and pan head screws
- Nuts and washers
- Custom CNC-machined fasteners
- Fasteners manufactured to customer drawings
For critical applications, thread dimensions, tolerances, surface finish, head dimensions and mechanical requirements should be confirmed before production.
Applications of Titanium Grade 7 Fasteners
Titanium Grade 7 Palladium Alloy Fasteners are used in industries where corrosion resistance and reduced component weight are important.
Common applications include:
- Chemical processing equipment
- Chemical storage and handling systems
- Petrochemical equipment
- Pulp and paper processing
- Desalination and water-treatment systems
- Pollution-control equipment
- Marine and chloride-containing environments
- Heat exchangers
- Process piping
- Acid-handling equipment
- Industrial tanks and vessels
- Specialized engineering equipment
Grade 7 is particularly considered for environments where the improved corrosion performance of palladium-modified titanium provides an advantage over standard commercially pure titanium grades.
Titanium Grade 7 Fasteners Manufacturing Process
Titanium Grade 7 Fasteners Stockist and Supplier in India
We supply UNS R52400 Titanium Fasteners for domestic and international industrial requirements. Our range includes Titanium Grade 7 Flange Bolts, bolts, screws, studs, nuts and washers, as well as custom-machined fasteners.
As a Titanium Gr 7 Bolts Supplier in India, we support requirements involving standard sizes as well as drawing-based components. Customers can share the required diameter, length, thread specification, quantity, applicable standard and documentation requirements for quotation.
Titanium Grade 7 Fasteners Exporter to USA
We supply Ti-0.2Pd Titanium Grade 7 Fasteners for export requirements, including orders for customers in the USA and other international markets. Export orders can be prepared according to agreed dimensional, packaging, inspection, marking and documentation requirements.
For faster quotation, provide:
- Fastener type
- Grade and standard
- Diameter and length
- Thread specification
- Quantity
- Drawing, if applicable
- Required certificates
- Delivery destination
Why Buy Ti-0.2Pd Grade 7 Fasteners From Us?
We focus on supplying the material and fastener configuration required for the actual application rather than treating every titanium fastener as a standard product.
- Grade 7 / UNS R52400 material availability
- Standard and custom fastener configurations
- Titanium Grade 7 flange bolts and stud bolts
- Metric, UNC and UNF thread options
- Drawing-based manufacturing
- Material traceability
- Inspection documentation as required
- Export packing and documentation
- Support for USA, Europe, Middle East and other international requirements
Request a Quote for Titanium Grade 7 Fasteners
Need Titanium Grade 7 Fasteners, Ti-0.2Pd Bolts, UNS R52400 Screws or Grade 7 Flange Bolts?
Send us your required size, quantity, thread, drawing and applicable standard. We can review the requirement and provide a quotation based on the required material, dimensions, testing and documentation.
FAQs About Titanium Grade 7 Fasteners
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