Description
📘 Product Overview
ERTi-12 Welding Wire is a high-performance titanium filler metal classified under the AWS A5.16 standard. It is specially designed for welding Grade 12 titanium alloys (Ti-0.3Mo-0.8Ni). With superior resistance to crevice corrosion, especially in hot brines, seawater, and acidic conditions, this wire has become a trusted solution for industries such as chemical processing, marine engineering, power generation, and heat exchanger manufacturing.
Compared with commercially pure titanium wires such as ERTi-1 or ERTi-2, the addition of nickel and molybdenum in ERTi-12 provides significantly better durability, higher weld quality, and improved corrosion resistance.
⭐ Key Features & Advantages
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Superior Corrosion Resistance – Ti-0.3Mo-0.8Ni alloy resists crevice corrosion in aggressive chloride and acidic media.
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Excellent Weldability – Works seamlessly with TIG (GTAW) and MIG (GMAW) processes.
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Certified Quality – Fully compliant with AWS A5.16 ERTi-12 classification.
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Durable Mechanical Properties – High strength combined with ductility and toughness.
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Base Metal Compatibility – Matches perfectly with Grade 12 Titanium Welding Wire applications.
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Versatility – Suitable for chemical, marine, and energy sectors.
⚗️ Chemical Composition (Typical, wt.%)
| Element | Content (%) | Function |
|---|---|---|
| Titanium (Ti) | Balance | Matrix metal |
| Nickel (Ni) | ~0.8 | Enhances crevice corrosion resistance |
| Molybdenum (Mo) | ~0.3 | Strengthens resistance to reducing acids |
This combination differentiates ERTi-12 Welding Wire from other titanium filler wires by ensuring stable performance in harsh service environments.
📊 Mechanical Properties (Typical Weld Metal)
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Tensile Strength: 550–620 MPa
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Yield Strength: 400–450 MPa
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Elongation: 18–22%
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Hardness: ~160 HV
These values confirm the balance between strength and ductility, ensuring structural reliability under stress and exposure to corrosive fluids.
🛠️ Welding Process & Recommendations
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Processes: GTAW (TIG) and GMAW (MIG).
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Shielding Gas: High-purity argon (99.999%) or argon-helium mixtures.
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Joint Design: Careful edge preparation and trailing shield protection are required.
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Back Purge: Recommended to eliminate oxidation on root sides.
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Storage: Must be stored in dry, controlled environments to prevent contamination.
Following these guidelines ensures high-quality welds with ERTi-12 Welding Wire, reducing porosity and defects.
📑 Standards & Classifications
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AWS A5.16 / SFA-5.16 – Titanium and titanium-alloy filler wires.
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ASTM B863 – Titanium and titanium-alloy wires (feedstock).
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UNS R53400 – Standard designation for Grade 12 titanium alloy.
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ISO Standards – Comparable Ti-0.3Mo-0.8Ni filler classifications.
🌍 Industrial Applications
ERTi-12 Welding Wire is widely adopted across industries where reliability under harsh conditions is critical:
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Chemical Processing – Welds piping, tanks, and reactors exposed to hot acids.
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Marine Engineering – Used in seawater desalination plants, offshore platforms, and shipbuilding.
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Heat Exchangers – Fabricates tube-to-tube sheet joints and prevents corrosion-induced failures.
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Energy & Power Plants – For condensers, coolers, and brine-handling systems.
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Valves & Pumps – Essential for titanium Grade 12 fluid-handling components.
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Oil & Gas – Protects subsea and downhole equipment from chloride attack.
🔍 Comparison with Other Titanium Welding Wires
| Wire Type | Alloy | Corrosion Resistance | Cost | Typical Use |
|---|---|---|---|---|
| ERTi-1 | Pure Ti | Moderate | Low | CP Ti general welding |
| ERTi-2 | Pure Ti | Good | Low | Slightly stronger CP Ti |
| ERTi-12 | Ti-0.3Mo-0.8Ni | Excellent | Medium | Chemical & marine systems |
| ERTi-7 | Ti-Pd | Outstanding | High | Extreme chemical resistance |
📌 ERTi-12 Welding Wire provides a cost-effective alternative to palladium-containing ERTi-7, delivering near-equivalent corrosion resistance at lower cost.
📦 Available Sizes & Packaging
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Diameters (mm): 0.8 / 1.0 / 1.2 / 1.6 / 2.0 / 2.4 / 3.2
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Forms: Spools (1 kg, 5 kg) or straight rods
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Packaging: Clean, vacuum-sealed, or inert-gas protected for export
🏆 Why Choose Us
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Strict QC under ISO 9001 manufacturing standards.
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Full Mill Test Certificates (EN 10204 3.1) provided.
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Fast delivery with global logistics support.
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Custom sizes & packaging available.
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Dedicated technical support team for welding solutions.
✒️ Conclusion
In conclusion, ERTi-12 Welding Wire is the optimal filler choice for welding Grade 12 Titanium in demanding environments. Its AWS A5.16 classification ensures international acceptance, while its unique Ti-0.3Mo-0.8Ni composition guarantees superior performance in seawater, hot brines, and chemical processing conditions. For industries seeking both strength and corrosion resistance, this titanium filler wire delivers unmatched reliability.
📞 Contact Us
📧 Email: sales@niticu.com
📱 Phone / WhatsApp / WeChat: +86 13335373172
🏭 Factory: Baotai Road Industrial Park, High-tech Zone, Baoji City, Shaanxi, China
🌐 Website: https://niticu.com
📩 Contact us now for pricing, samples, and expert technical support — we reply within 24 hours.












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