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| Brand Name: | DLX |
| Model Number: | Iridium-Platinum Wire |
| MOQ: | 10kg |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability: | 500 tons per month |
Platinum Iridium (Pt-Ir) Alloy Wire for High-Efficiency PEM Electrolysis & Precision Electrodes
DLX manufactures high-precision Platinum-Iridium (Pt-Ir) Alloy Wire engineered specifically for demanding electrocatalytic and electrochemical environments. By alloying pure platinum with 10% to 30% iridium, our Pt-Ir wire series delivers exceptional catalytic stability, superior mechanical stiffness, and outstanding resistance to anodic corrosion under severe acidic oxygen evolution reaction (OER) conditions.
Available in standard and custom grades including PtIr10, PtIr20, PtIr25, and PtIr30, our wire is precision-drawn to tight tolerances (down to 0.02 mm diameter) with clean, mirror-smooth surface finishes, making it the primary choice for PEM water electrolyzer anode grids, medical sensor leads, spark electrode tips, and aerospace ignition components.
| Grade Designation | Chemical Composition (wt%) | Density (g/cm³) | Melting Point (°C) | Electrical Resistivity (μΩ·m, 20°C) | Tensile Strength (Annealed / Hard, MPa) | Elongation (Annealed, %) | Hardness (Annealed / Hard, HV) |
|---|---|---|---|---|---|---|---|
| PtIr10 | Pt: 90.0% / Ir: 10.0% | 21.56 | 1790 | 0.25 | 400 – 550 / 700 – 900 | ≥ 15 | 120 / 220 |
| PtIr20 | Pt: 80.0% / Ir: 20.0% | 21.72 | 1850 | 0.32 | 600 – 780 / 950 – 1200 | ≥ 10 | 200 / 310 |
| PtIr25 | Pt: 75.0% / Ir: 25.0% | 21.80 | 1890 | 0.36 | 720 – 920 / 1100 – 1350 | ≥ 8 | 240 / 360 |
| PtIr30 | Pt: 70.0% / Ir: 30.0% | 21.88 | 1925 | 0.38 | 850 – 1050 / 1250 – 1500 | ≥ 5 | 280 / 400 |
Manufacturing Range & Dimensional Tolerances
Key Technical Advantages for Industrial Applications
Material Selection Guide: Choosing the Right Pt-Ir Alloy Ratio
Target Industrial Applications & Operating Environments
Q1: Why is Pt-Ir wire preferred over pure platinum for PEM water electrolyzer anode electrodes?
A: Pure platinum softens and undergoes structural dissolution under strong acidic and high-potential OER conditions. Incorporating 10% to 30% iridium increases hardness, elevates recrystallization temperature, and significantly suppresses anodic weight loss, delivering extended operating life and stable overpotential.
Q2: What is the standard MOQ and sample policy for trial orders?
A: Our standard production MOQ is 5 kg. For R&D validation and project testing, prototype sample spools (from 0.5 kg) can be provided upon technical specification confirmation.
Q3: What wire diameters and forms can DLX supply?
A: We supply fine wires from 0.02 mm up to 3.0 mm in diameter. Supply formats include continuous length on precision plastic spools (DIN100 / DIN125 / DIN160), straightened cut pins, and continuous coils.
Q4: How does iridium content (PtIr10 vs PtIr20 vs PtIr30) affect wire workability?
A: Increasing iridium content enhances tensile strength, hardness, and corrosion resistance, while slightly reducing ductility. PtIr10 offers excellent flexibility for fine weaving; PtIr20 and PtIr30 offer superior wear and spark erosion resistance for rigid electrode structures.
Q5: What technical documentation is provided with each shipment?
A: Each shipment includes a comprehensive Factory Inspection Certificate detailing batch chemical composition (ICP-OES test values), mechanical properties (tensile strength and elongation), exact diameter tolerances, and resistivity verification.
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