High-Strength Mo-Ni Alloy: Why choose Titanium Grade 12?
For decades, chemical and marine engineers faced a difficult choice: use Commercially Pure (CP) Grade 2 and risk crevice corrosion in hot, saline environments, or upgrade to Grade 7 (Palladium-alloyed) at a significantly higher cost. Titanium Grade 12 Wire (Ti-0.3Mo-0.8Ni) was developed specifically to solve this dilemma.
Engineered with a small addition of nickel and molybdenum, Titanium Gr 12 Wire delivers enhanced performance in hostile environments-from chemical processing to marine applications-offering greater value and longevity than many alternative materials.
Grade 12 Advantage:
•Intermediate Strength: Offers approximately 40% higher yield strength than Grade 2.
•Thermal Stability: Rated for service up to 600°F (316°C) under ASME code.
•Cost Efficiency: Provides performance comparable to Grade 7 in many environments at a fraction of the cost.
Technical Specifications & Compliance Data
Chemical Analysis (ASTM B863 / AWS A5.16)
Our ErTi 12 and Grade 12 industrial wires are manufactured to strict interstitial control. This ensures maximum ductility and consistent weld pools during fabrication. Below is the weight percentage breakdown of our high-purity UNS R53400 alloy.
| Element | TSM Standard (%) | ASTM B863 Limit (%) |
| Titanium (Ti) | Balance | Balance |
| Nickel (Ni) | 0.60 – 0.90 | 0.60 – 0.90 |
| Molybdenum (Mo) | 0.20 – 0.40 | 0.20 – 0.40 |
| Iron (Fe) | ≤ 0.15 | ≤ 0.30 |
| Oxygen (O) | 0.10 – 0.16 | ≤ 0.25 |
| Carbon (C) | ≤ 0.03 | ≤ 0.08 |
| Nitrogen (N) | ≤ 0.02 | ≤ 0.03 |
| Hydrogen (H) | ≤ 0.008 | ≤ 0.015 |
| Note: Low hydrogen levels are critical to prevent hydrogen embrittlement in chemical storage applications. TSM employs vacuum annealing to ensure levels stay below 0.008%. | ||
Mechanical Properties
Titanium Grade 12 exhibits an alpha-near-beta microstructure, providing better elevated-temperature properties than Grades 1-4.
| Tensile Strength | ≥ 483 MPa (70 ksi) |
| Yield Strength (0.2% Offset) | ≥ 345 MPa (50 ksi) |
| Elongation (A5) | ≥ 18% |
| Reduction of Area | ≥ 25% |
| Hardness (Brinell) | 180 - 235 HBW |
Physical Constants
Physical & Thermal ConstantsUnderstanding the physical behavior of Titanium Grade 12 Wire is essential for precision engineering and heat exchanger design.
•Density: 4.51 g/cm³ (0.163 lb/in³)
•Melting Point: 1660°C (3020°F)
•Thermal Conductivity: 19 W/m·K (132 BTU·in/hr·ft²·°F)
•Coefficient of Expansion: 8.6 µm/m·°C (4.8 µin/in·°F)
•Elastic Modulus: 105 GPa (15.2 x 10⁶ psi)
Titanium Grade 12 Wire Dimension & Supply Range
At TSM TECHNOLOGY, we offer one of the widest ranges of Grade 12 Titanium Wire sizes in the industry. Whether you need ultra-fine wire for electronics or heavy-gauge rods for structural components, our precision drawing dies can accommodate your request.
| Product Form | Diameter Range (mm) | Standard Length / Weight | Surface Finish |
| Straight Wire | 0.1mm - 6.0mm | 300mm - 3000mm | Bright, Pickled, Peeled |
| Coiled Wire | 0.05mm - 6.0mm | 50kg - 150kg | CoilsBright, Pickled |
| Spooled Wire | 0.05mm - 3.2mm | D100, D200, D300 Spools | Bright, Vacuum Sealed |
| Flat / Shaped | Custom Profiles | On Request | Satin, Polished |
ErTi 12 Welding Wire: TIG & MIG Fabrication
Superior Weldability
Our ErTi 12 filler wire is characterized by its excellent fluid control and low spatter. The addition of Ni and Mo stabilizes the weld pool, making it ideal for joining Grade 12 to itself or other CP grades in complex reactor geometries.
Crevice Corrosion Protection
In heat exchangers handling hot brines, the weld seam is often the weakest point. By using TSM ErTi 12 Wire, the weld deposit inherits the same crevice corrosion resistance as the base metal, ensuring system-wide longevity.
Certified AWS A5.16 Compliance
Every spool of TSM welding wire meets AWS A5.16 standards. We provide batch-specific Material Test Certificates (MTC) detailing the exact chemical composition to ensure your project stays within code and audit-ready.
Partner with Your Trusted Titanium Wire Manufacturer
Choosing the right material supplier is as critical as selecting the alloy itself. TSM TECHNOLOGY CO has established itself as a trusted global manufacturer of Premium Titanium Wire, combining deep metallurgical expertise with a customer-centric approach to supply chain reliability.
For your next project requiring the unique balance of properties offered by Titanium Grade 12 Wire (ErTi 12), look no further. Contact TSM TECHNOLOGY today at info@tsm-titanium.com to request a quotation, discuss your technical requirements, or to place an order. Let our expertise in titanium become the foundation of your product's success.
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