Grade 1 Titanium is the softest and most ductile grade of commercially pure titanium, offering the highest formability and excellent corrosion resistance. With density less than 60% that of steel (4.51 g/cm³), it combines light weight with outstanding weldability and biocompatibility. This grade is specified for deep-drawn components, chemical processing equipment, and implantable medical devices where maximum formability and corrosion resistance are required.
1. Product Specifications & Physical DataZYTC Alloy supplies UNS R50250 in comprehensive mill forms for aerospace, medical, chemical processing, and industrial applications requiring verified purity and mechanical properties. Available Forms: Bar, flanges, forgings, sheet, plate, strip, welding wire, tube, and coil . Specifications: ASTM B265 (sheet/plate), B348 (bar/billet), B381 (forgings), B338 (tube), ASME SB-265/338/348/381, AMS 4900/4901/4941, ISO 5832-2 (surgical implants) .
| Chemical Composition (Weight %) | Grade 1 Titanium Specification |
|---|
| Titanium (Ti) | ≥ 99.5 | | Iron (Fe) | ≤ 0.20 | | Carbon (C) | ≤ 0.10 | | Oxygen (O) | ≤ 0.18 | | Nitrogen (N) | ≤ 0.03 | | Hydrogen (H) | ≤ 0.015 |
| Physical Properties | Metric | Imperial |
|---|
| Density | 4.51 g/cm³ | 0.163 lb/in³ | | Melting Point | 1668 - 1670°C | 3034 - 3040°F | | Beta Transus | 890°C ± 15°C | 1635°F ± 25°F | | Modulus of Elasticity | 103 - 107 GPa | 15.0 - 15.5 × 10⁶ psi | | Poisson's Ratio | 0.32 | 0.32 | | Thermal Conductivity (RT) | 16.4 W/m·K | 114 BTU·in/hr·ft²·°F |
| Mechanical Properties (Annealed) | Metric | Imperial |
|---|
| Tensile Strength (min.) | 240 MPa | 35 ksi | | Yield Strength (0.2% offset, min.) | 170 MPa | 25 ksi | | Elongation (min.) | 24% | 24% | | Reduction of Area (min.) | 30% | 30% |
*Note: The mechanical properties listed in the original query (1260 MPa tensile) correspond to high-strength titanium alloys (e.g., Ti-6Al-4V Grade 5), not Grade 1 commercially pure titanium. Corrected values per ASTM specifications are provided above.*
2. Fabrication & Material ComparisonGrade 1 titanium offers excellent fabricability, similar to austenitic stainless steels, but requires specific techniques due to its reactive nature. Hot Working: 650-850°C (1200-1560°F); avoid overheating above beta transus (890°C) to prevent grain growth . Cold Working: Excellent formability; can be deep drawn, stamped, rolled, and spun. Work-hardening rate moderate; intermediate anneals may be required for severe deformation . Annealing: 650-760°C (1200-1400°F) × 10-30 minutes, air cool; relieves cold work stresses and restores ductility . Machining: Similar to stainless steel but requires sharp tools, high cutting speeds, low feed rates, and generous coolant flow. Galling tendency requires proper tool geometry . Welding: Must be shielded with inert gas (argon or helium) to prevent oxygen/nitrogen contamination. GTAW (TIG) and GMAW (MIG) with matching filler metal recommended . Material Comparison: vs. Grade 2 Titanium: Lower strength (240 MPa vs. 345 MPa) but higher ductility; selected for most severe forming requirements . vs. Grade 4 Titanium: Significantly lower strength (240 MPa vs. 550 MPa); Grade 4 used where strength required . vs. 316L Stainless: Half the density, superior corrosion resistance in chlorides; higher material cost but lighter weight .
ApplicationsAerospace: Aircraft skin (non-stressed panels), structural honeycomb, bellows, gaskets Chemical Processing: Heat exchanger parts, reactor vessel linings, piping systems for corrosive service Medical: Implantable battery cases and shields for CRM and neurostimulation devices, battery cathodes and connectors, surgical instrumentation Industrial: Deep-drawn components, stamped fabrications, etched parts, architectural cladding Marine: Seawater handling equipment, offshore platform components Desalination: Tubing and heat exchanger components
Contact ZYTC Alloy for certified Grade 1 Titanium materials with complete traceability, ASTM/AMS specifications, technical datasheets, and competitive pricing on standard sizes or custom-fabricated components. Email: daisy@zytcsteel.com WhatsApp/WeChat: +86 17335753350 |
