Palladium-Enhanced Performance for Extreme Environments – Trusted by Chemical, Medical & Aerospace Sectors
What is Grade 7 Titanium?
Grade 7 (UNS R52400) is a palladium-modified titanium alloy where 0.15-0.25% Pd addition dramatically enhances corrosion resistance in reducing acids and crevice environments, while retaining pure titanium's biocompatibility and fabricability.
Key Technical Properties
1. Chemical Composition (ASTM B265)
| Element | Ti | Pd | Fe | O | Others |
|---|---|---|---|---|---|
| Wt.% | Balance | 0.12-0.25 | ≤0.30 | ≤0.25 | ≤0.1 (each) |
2. Mechanical Properties
| Property | Value | Test Standard |
|---|---|---|
| Tensile Strength | ≥345 MPa (50 ksi) | ASTM E8 |
| Yield Strength | ≥275 MPa (40 ksi) | ASTM E8 |
| Elongation | ≥20% | ASTM E8 |
| Hardness (HV) | 120-200 | ASTM E92 |
3. Physical Properties
| Property | Value |
|---|---|
| Density | 4.51 g/cm³ |
| Melting Point | 1650°C (3000°F) |
| Thermal Conductivity | 17 W/m·K |
| Electrical Resistivity | 0.55 µΩ·m |
4. Thermal Performance
Operating Range: -196°C to 300°C (-320°F to 572°F)
Oxidation Resistance: Superior to pure titanium above 150°C
Thermal Expansion: 8.6 µm/m·K (20-100°C)
5. Fabrication Capabilities
| Process | Rating | Notes |
|---|---|---|
| Weldability | ★★★★★ | Excellent (GTAW/GTAW preferred) |
| Machinability | ★★★☆☆ | Use carbide tools + coolant |
| Formability | ★★★★☆ | Cold workable (Annealed state) |
Why Grade 7 Titanium? Critical Applications
| Industry | Components | Performance Advantage |
|---|---|---|
| Chemical | Heat exchangers, HCl scrubbers, reactors | Resists crevice corrosion in chlorides |
| Medical | Implants, surgical instruments | Biocompatible + MRI-safe |
| Marine | Desalination plants, seawater piping | 50+ year lifespan in seawater |
| Energy | Geothermal casings, FGD systems | Withstands H₂S/sulfuric acid |
TSM's Grade 7 Product Range
| Form | Dimensions | Standards |
|---|---|---|
| Plates/Sheets | Thickness: 0.5-100mm | ASTM B265, ASME SB265 |
| Bars | Diameter: 10-300mm | ASTM B348, AMS 4956 |
| Tubes | OD: 6-150mm (Wall: 0.5-15mm) | ASTM B337, B338 |
| Forgings | Custom shapes (Flanges/Valves) | ASTM B381 |
| Wires | Diameter: 0.1-5mm | ASTM B863 |
Manufacturing Excellence at TSM
Material Control:
Virgin Ti sponge (99.7% purity)
Precision Pd doping (±0.01%)
Processing:
Vacuum arc remelting (VAR)
Hydrogen-controlled annealing
Quality Assurance:
100% UT/RT testing per ASME Sec. V
PMI verification (OES testing)
Full traceability (MTC per EN 10204 3.1)
Limited-Time Engineering Support
🔥 Free Material Kit: Get Grade 7 samples (plate/tube) + corrosion data report
🔥 Technical Consultation: Complimentary application review with our metallurgists
🔥 Volume Discounts: Price protection on orders >2,000 kg
Why Choose TSM Technology?
✅ Reliable Global Supply: We export to over 70 countries worldwide.
✅ Customization: Alloy adjustments, special finishes (mirror/bead blast)
✅ Certifications: ISO 9001, AS9100, PED 2014/68/EU
✅ End-to-End Solutions: Cut-to-size, machining, welding & testing services
Ready to Specify Grade 7 Ti?
📞 +86-18691573651 | ✉️ info@tsm-titanium.com
🌐 Resources:
Download CAD Models
View Material Test Reports
Corrosion Calculator Tool
"Where 0.2% Pd Makes 100% Difference in Critical Environments"
Trusted by chemical giants and medical innovators since 2005
