Titanium Grade 3 Fasteners Supplier in India
We supply Titanium Grade 3 fasteners in UNS R50550 for industrial assemblies where low weight, corrosion resistance and increased commercially pure titanium strength are required.
Our product range includes bolts, nuts, stud bolts, threaded rods, screws and washers in metric, UNC, UNF and drawing-specific configurations.
Titanium Grade 3 is often selected for marine equipment, chemical-processing systems, heat exchangers, desalination plants and titanium equipment assemblies. However, successful performance depends on more than the material grade. Thread design, mating materials, tightening procedure, process chemistry and documentation requirements must also be defined correctly.
Send us your fastener type, size, thread, quantity, drawing and inspection requirements for a technical-commercial quotation.
Is Titanium Grade 3 Right for Your Application?
Titanium Grade 3 may be considered when the project requires all or several of the following:
- Greater strength than Titanium Grade 2
- A commercially pure titanium material
- Lower component weight than steel
- Resistance to seawater and marine atmospheres
- Compatibility with titanium equipment
- Resistance to many neutral and oxidizing environments
- Custom fasteners manufactured from traceable titanium material
- Reduced risk of contamination in sensitive process equipment
Grade 3 may not be the correct choice when:
- Very high structural strength is required
- The process contains strongly reducing acids
- Severe crevice-corrosion conditions are expected
- A code-approved bolting grade is specifically required
- The assembly involves incompatible metals without galvanic protection
- An aerospace or medical qualification is required
- The joint design does not account for titanium thread galling
Material selection should be reviewed using the actual temperature, chemical concentration, pressure, mechanical load and mating materials.
Quick Material Identification
| Material detail | Titanium Grade 3 |
| Common name | Commercially Pure Titanium Grade 3 |
| UNS designation | R50550 |
| Material number | 3.7055 |
| Material family | Unalloyed commercially pure titanium |
| Relative strength | Higher than Grade 2 |
| Relative formability | Lower than Grade 2 |
| Density | Approximately 4.5 g/cm³ |
| Typical supply condition | Annealed |
| Typical raw-material form | Bar, billet, wire or forging stock |
| Common raw-material standard | ASTM B348/B348M |
| Forging designation | ASTM B381 Grade F-3 |
| Finished products | Bolts, nuts, studs, rods, screws and washers |
ASTM B348 and ASTM B381 describe titanium raw materials and forgings. They do not define every dimension, thread tolerance or performance requirement of a finished fastener.
A complete fastener order must include both the material requirement and the finished-product requirement.
Titanium Grade 3 Fasteners We Supply
Bolts
We can supply Titanium Grade 3 bolts for equipment assembly, supports, marine structures and industrial connections.
Common configurations include:
- Hex bolts
- Heavy hex bolts
- Socket head bolts
- Countersunk bolts
- Fully threaded bolts
- Partially threaded bolts
- Drawing-specific bolts
The required head style, grip length, threaded length and dimensional standard should be stated during enquiry.
Nuts
Available nut configurations may include:
- Hex nuts
- Heavy hex nuts
- Thin nuts
- Lock nuts
- Custom-machined nuts
- Drawing-specific nuts
When titanium nuts are paired with titanium bolts, thread galling must be considered during design and installation.
Stud Bolts
We supply Grade 3 studs for equipment, structural and industrial assemblies.
Available configurations can include:
- Fully threaded studs
- Double-end studs
- Tap-end studs
- Studs supplied with nuts
- Custom-length studs
For pressure-containing flange assemblies, the responsible engineer must confirm whether Titanium Grade 3 is permitted by the applicable design code.
Threaded Rods
Titanium Grade 3 threaded rods may be supplied in standard or cut lengths.
The purchase specification should identify:
- Rod diameter
- Overall length
- Thread series
- Thread pitch
- Thread tolerance
- Straightness requirement
- End condition
Screws
Depending on dimensional and quantity requirements, we can supply:
- Machine screws
- Socket cap screws
- Countersunk screws
- Pan-head screws
- Button-head screws
- Custom CNC-machined screws
Washers
Available washer designs can include:
- Plain washers
- Flat washers
- Heavy washers
- Custom-thickness washers
- Drawing-specific washers
Washer dimensions and material compatibility should be coordinated with the selected bolt, nut and connected component.
Schedule and Size Chart for Titanium Gr. 3 Fasteners
| Fastener Type | Diameter (mm/inches) | Length (mm/inches) | Thread Type |
| Hex Bolts | M3 – M100 (1/8” – 4”) | 10 – 500 mm (0.39” – 20”) | Metric/UNC/UNF |
| Stud Bolts | M6 – M64 (1/4” – 2.5”) | 50 – 300 mm (2” – 12”) | Metric/UNC/UNF |
| Nuts | M3 – M64 (1/8” – 2.5”) | Standard Hex | Metric/UNC/UNF |
| Washers | M3 – M64 (1/8” – 2.5”) | Standard Flat/Spring | Metric/UNC/UNF |
| Screws | M2 – M52 (1/16” – 2”) | 5 – 300 mm (0.2” – 12”) | Metric/UNC/UNF |
Specifications Chart for UNS N06600 Fasteners
| Specification | Details |
| Standard Designations | ASTM B446, B564, F467, F468 |
| UNS Number | N06600 |
| DIN EN | 2.4856 |
| AMS | 5666 |
| BS | 3076 |
| Available Types | Bolts, Nuts, Stud Bolts, Washers, Screws |
| Thread Type | Metric, UNC, UNF |
| Manufacturing Methods | Hot Forged, Cold Forged, CNC Machined |
| Surface Finish | Plain, Passivated, Anodized, PTFE Coated |
| Heat Treatment | Annealed, Stress-Relieved |
Mechanical Properties Chart for AMS 5666 Fasteners
| Property | Value |
| Tensile Strength (MPa/psi) | 485 MPa (70,000 psi) |
| Yield Strength (MPa/psi) | 345 MPa (50,000 psi) |
| Elongation (%) | 18% |
| Hardness (Rockwell B) | B70 |
| Modulus of Elasticity (GPa/ksi) | 103 GPa (14,900 ksi) |
| Poisson’s Ratio | 0.34 |
Chemical Composition Chart for Titanium Grade 3 Stud Bolts
| Element | Composition (%) |
| Titanium (Ti) | 99.2% (min) |
| Iron (Fe) | 0.30% (max) |
| Oxygen (O) | 0.35% (max) |
| Carbon (C) | 0.08% (max) |
| Nitrogen (N) | 0.05% (max) |
| Hydrogen (H) | 0.015% (max) |
Physical Properties Chart for Grade 3 Hex Bolts
| Property | Value |
| Density (g/cm³) | 4.51 g/cm³ |
| Melting Point (°C/°F) | 1660°C (3020°F) |
| Thermal Conductivity (W/m·K) | 15.6 W/m·K |
| Electrical Resistivity (µΩ·m) | 0.42 µΩ·m |
| Specific Heat Capacity (J/kg·K) | 520 J/kg·K |
Standard and Custom Thread Options
We can review requirements for:
- Metric coarse threads
- Metric fine threads
- UNC threads
- UNF threads
- Fully threaded fasteners
- Partially threaded fasteners
- Rolled threads
- Cut threads
- Special threads according to drawing
The thread specification should state:
- Nominal diameter
- Thread pitch or threads per inch
- Thread tolerance or class
- Threaded length
- Thread run-out
- Root and crest requirements
- Inspection gauge requirement
Thread compatibility should be checked before mixing fasteners produced under different dimensional systems.
Other related Grades:
What Makes Grade 3 Different from Other Titanium Grades?
Grade 3 is one of the commercially pure titanium grades. It contains no major intentional alloying addition such as the aluminium and vanadium present in Titanium Grade 5.
Its controlled interstitial-element content provides more strength than Grade 2, while retaining the general corrosion behaviour associated with commercially pure titanium.
| Comparison | Grade 2 | Grade 3 | Grade 4 | Grade 5 |
| Material family | Commercially pure | Commercially pure | Commercially pure | Titanium alloy |
| UNS | R50400 | R50550 | R50700 | R56400 |
| Relative strength | Medium | Higher | Highest common CP grade | Much higher |
| Relative formability | Very good | Moderate | Lower | Application-dependent |
| Common selection reason | General corrosion resistance | Higher CP titanium strength | Maximum CP titanium strength | Structural strength |
| Typical buyer concern | Strength may be insufficient | Balance of strength and CP composition | Reduced formability | Different corrosion and fabrication behaviour |
Grade 3 is not automatically better than Grade 2 or Grade 4. It is selected when its particular balance of strength, ductility and corrosion resistance matches the engineering requirement.
Applications of Titanium Grade 3 Bolts and Nuts
Due to their exceptional properties, Titanium Grade 3 fasteners are widely used in:
- Aerospace Industry: For aircraft components, engine parts, and structural applications.
- Marine Industry: Resistant to seawater corrosion, making them perfect for offshore platforms and shipbuilding.
- Chemical Processing: Withstands harsh chemicals and extreme temperatures.
- Power Generation: Used in nuclear and thermal power plants.
- Medical Industry: Biocompatible properties make them suitable for medical implants.
Three Important Design Considerations
1. Thread Galling
Titanium-on-titanium threaded contact can create adhesive wear known as galling.
During tightening, the thread surfaces may seize, tear or lock together. Severe galling can prevent correct preload and make future disassembly difficult.
Risk-reduction measures can include:
- Clean and undamaged threads
- Controlled installation speed
- Hand-starting the nut
- Avoiding impact tools
- Approved anti-seize compound
- Compatible lubricant
- Appropriate thread fit
- Calibrated tightening tools
- Engineer-approved torque values
Lubrication significantly changes the relationship between torque and bolt tension. Dry-thread torque values should not be reused automatically for lubricated threads.
2. Galvanic Compatibility
Titanium is relatively noble in many environments. When it is electrically connected to a less noble metal in the presence of an electrolyte, the other metal may experience accelerated galvanic corrosion.
The joint design should consider:
- Mating-metal type
- Relative exposed surface areas
- Presence of seawater or conductive liquid
- Electrical isolation
- Washer and sleeve materials
- Coatings
- Drainage and moisture retention
Selecting a titanium fastener does not by itself make the entire assembly corrosion resistant.
3. Crevice Conditions
Titanium generally performs well in many seawater and chloride environments, but tightly shielded areas can develop aggressive local conditions.
Possible crevice locations include:
- Under washers
- Beneath bolt heads
- Inside blind threaded holes
- Under deposits
- Between overlapping components
- Around gaskets
- In stagnant liquid pockets
Temperature, chloride concentration, oxygen availability and crevice geometry should be reviewed before selection.
Where Titanium Grade 3 Fasteners May Be Used
Marine Equipment
Potential uses include seawater pumps, coastal equipment, shipboard systems, condenser assemblies and marine structures.
The complete assembly must be evaluated for galvanic compatibility and crevice conditions.
Desalination Plants
Grade 3 fasteners may be considered for compatible evaporator, condenser, pump and seawater-system assemblies.
Material selection should account for temperature, brine concentration and connected materials.
Chemical-Processing Equipment
Possible applications include reactors, tanks, vessels, heat exchangers and auxiliary process equipment handling compatible media.
The exact chemical composition and temperature must be reviewed. Titanium Grade 3 is not universally resistant to all acids.
Heat Exchangers and Condensers
Grade 3 fasteners may provide material compatibility in equipment where titanium tubes, plates or components are already used.
Applications can include:
- Water-box assemblies
- Covers
- Tube-sheet accessories
- Condenser components
- Marine cooling equipment
Power and Water-Treatment Equipment
Potential uses include cooling-water systems, process-water systems, desalination equipment and corrosion-sensitive auxiliary assemblies.
Safety-critical or pressure-boundary use requires code approval.
Weight-Sensitive Industrial Assemblies
Titanium has a lower density than steel and may help reduce component weight.
However, Grade 3 should not be described as aerospace-certified unless the complete product has been manufactured and approved under the required aerospace specification and quality system.
Why Choose ASC LLP for Titanium Grade 3 Bolts and Nuts?
At ASC LLP, we are a trusted supplier of high-quality Titanium Grade 3 Fasteners. Our products meet global standards like UNS N06600, ASTM B446, B564, F467, F468, DIN EN 2.4856, AMS 5666, and BS 3076, ensuring top-notch performance. We offer:
- Customized Fastener Solutions tailored to your project requirements.
- Competitive Pricing without compromising quality.
- Timely Delivery to keep your operations running smoothly.
- Expert Support from industry professionals.
Looking for premium Grade 3 bolts and nuts, Grade 3 hex bolts, or other Titanium fasteners? Contact ASC LLP today for the best deals on high-performance Titanium Grade 3 Fasteners. Request a quote now!
Frequently Asked Questions
What is Titanium Grade 3?
Titanium Grade 3 is a commercially pure, unalloyed titanium grade identified as UNS R50550 and material number 3.7055.
Is Grade 3 stronger than Grade 2?
Grade 3 generally provides higher tensile and proof strength than Grade 2, although it typically has lower formability.
Is ASTM B348 a fastener standard?
No. ASTM B348/B348M covers titanium and titanium-alloy bars and billets. The finished fastener’s dimensions, threads and performance requirements must be specified separately.
What does ASTM B381 Grade F-3 mean?
ASTM B381 Grade F-3 identifies unalloyed Titanium Grade 3 forgings in UNS R50550.
Can Grade 3 titanium bolts be used in seawater?
They may be suitable for many seawater applications. Crevice conditions, temperature, galvanic compatibility and mechanical load must still be evaluated.
Global Reach
ASC LLP boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality Titanium Grade 3 Fasteners. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
