Product Introduction
Gr1 Titanium Wire (ASTM Grade 1/UNS R50250) offers the highest purity and best ductility among industrial titanium grades. Titanium content ≥99.5% with tightly controlled impurities and excellent weldability.
The preferred choice for applications demanding high purity, corrosion resistance, and formability. Available from φ0.1 mm to φ6.5 mm, customizable up to φ10.0 mm, as straight wire or coil.
Specifications
Specifications
1. Basic Information
| Parameter | Value |
| Product Name | Gr1 Titanium Wire |
| Grade Equivalents | ASTM Gr1/UNS R50250/TA1 |
| Standards | ASTM B863, ASTM F136, JIS H4630, ISO 5832-2, GOST 19807, GB/T 3623-2022 |
| Supply Form | Straight wire, Coil wire |
| Surface Condition | Pickled, Bright finish |
| Diameter Range | φ0.1–φ6.5 mm; customizable up to φ10.0 mm |
| Straightness | ≤2/1000 |
2. Chemical Composition
| Ti | Fe | C | N | O | H | Single Impurity | Total Impurities |
| Balance | ≤0.20% | ≤0.08% | ≤0.03% | ≤0.18% | ≤0.015% | <0.10% | <0.40% |
3. Mechanical Properties
| Temper | UTS (MPa) | YS (MPa) | Elongation (%) |
| Annealed (M) | ≥240 | ≥138 | ≥24 |
| Half-Hard (Y2) | ≥380 | – | ≥12 |
| Hard (Y) | ≥480 | – | ≥8 |
4. Physical Properties
| Properties | Values |
| Density | 4.51 g/cm³ |
| Melting Point | 1668°C |
| Thermal Expansion | 8.4×10⁻⁶/°C |
| Thermal Conductivity | 16 W/(m·K) |
| Electrical Resistivity | ≈0.55 μΩ·m |
| Magnetic | Non-magnetic (weakly paramagnetic) |
| Max. Service Temp | ≤300°C continuous; ≤450°C short-term |
| Cryogenic Limit | -253°C (LH₂/LOX)-no embrittlement |
Features and Advantages
- High purity: Titanium≥99.5% with tightly controlled impurities and consistent performance.
- Excellent ductility: Easy to bend, coil, and form into complex geometries.
- Superior surface quality: Available in pickled and bright finish, clean and contamination-free.
- Wide temperature range: Reliable from -253°C to 300°C.
- Broad corrosion resistance: Resistant to seawater, salt spray, organic acids, and oxidizing acids.
- Biocompatible: Non-toxic and non-sensitizing, meets ISO 5832-2 for medical implant applications.
Performance Solutions
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1. Problem: Stainless steel suffers pitting and stress corrosion cracking in high-chloride environments, requiring frequent replacement. Solution: Gr1 titanium wire resists chloride-induced corrosion. Ideal for seawater pipelines, offshore platforms, and high-salinity conditions with significantly longer service life.
2. Problem: Nickel alloy wire corrodes rapidly in strong acid media, driving up maintenance costs. Solution: Gr1 titanium wire resists most organic acids and oxidizing acids. Corrosion rates are extremely low, reducing lifetime maintenance costs.
3. Problem: Conventional metal wire produces porosity and inclusions during welding, resulting in inconsistent weld quality. Solution: Gr1 titanium wire meets ERTi-1 specifications. Welds are dense and uniform, certified to ASTM F136.
4. Problem: Alloy-based medical devices risk metal ion leaching and allergic reactions, limiting their suitability for implant use. Solution: Gr1 titanium wire is non-toxic and non-sensitizing. It complies with ISO 5832-2 for medical implants and is safe for surgical instruments and implantable components.
Applications
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1. Compliant with ERTi-1 specifications. Used for welding titanium equipment, pipelines, vessels, and heat exchangers. Produces clean, dense welds with high joint strength. Suited for chemical processing, nuclear, and aerospace titanium fabrication.
2. Applied in heat exchangers, electrolytic cells, reactor linings, and corrosion-resistant screens. In hydrochloric acid, sulfuric acid, and chloride media, service life is 5–10 times longer than stainless steel.
3. Used in surgical instruments, orthopedic implants, dental restoration wire, and minimally invasive devices. Biocompatibility meets ISO 5832-2. Non-toxic and non-sensitizing.
4. Suited for desalination pipelines, subsea structural components, fasteners, and anti-corrosion mesh. Outperforms 316L stainless steel in salt spray and high-chloride environments.
5. Used for sensor leads, non-magnetic springs, precision frames, and shielding components. Non-magnetic properties eliminate interference in sensitive measurements. Fine wire diameter tolerance ±0.02 mm supports miniaturized applications.