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| Brand Name: | DLX |
| Model Number: | Cr10Ni90 |
| MOQ: | 10kg |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability: | 500 tons per month |
| Performance / Property | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
|---|---|---|---|---|---|---|
| Nickel Content (Ni, %) | 89.0 - 91.0 | Rest | Rest | 55.0 - 61.0 | 34.0 - 37.0 | 30.0 - 34.0 |
| Chromium Content (Cr, %) | 9.0 - 11.0 | 20.0 - 23.0 | 28.0 - 31.0 | 15.0 - 18.0 | 18.0 - 21.0 | 18.0 - 21.0 |
| Iron Content (Fe, %) | <= 0.5 | <= 1.0 | <= 1.0 | Rest | Rest | Rest |
| Maximum Working Temp (deg C) | 1100 | 1200 | 1250 | 1150 | 1100 | 1100 |
| Melting Point (deg C) | 1400 - 1420 | 1400 | 1380 | 1390 | 1390 | 1390 |
| Density (g/cm3) | 8.70 | 8.40 | 8.10 | 8.20 | 7.90 | 7.90 |
| Electrical Resistivity at 20 deg C (micro ohm.m) | 0.33 +/- 0.03 | 1.09 +/- 0.05 | 1.18 +/- 0.05 | 1.12 +/- 0.05 | 1.00 +/- 0.05 | 1.04 +/- 0.05 |
| Tensile Strength (Annealed, MPa) | 600 - 750 | >= 650 | >= 700 | >= 600 | >= 550 | >= 550 |
| Elongation at Rupture (%) | >= 25 | >= 20 | >= 20 | >= 20 | >= 20 | >= 20 |
| Thermal Conductivity (W/m.K at 20 deg C) | 17.5 | 15.0 | 13.5 | 13.0 | 12.0 | 12.0 |
| Linear Expansion Coefficient (10^-6/K, 20-1000 deg C) | 15.2 | 18.0 | 17.0 | 17.0 | 19.0 | 19.0 |
| Micrographic Structure | Single-phase Austenite | Austenite | Austenite | Austenite | Austenite | Austenite |
| Magnetic Properties | Ferromagnetic (Curie ~ 350 deg C) | Non-magnetic | Non-magnetic | Non-magnetic | Weak magnetic | Weak magnetic |
| Product Form | Thickness Range (mm) | Width Range (mm) | Thickness Tolerance (mm) | Width Tolerance (mm) | Edge & Surface Condition |
|---|---|---|---|---|---|
| Precision Foil | 0.02 - 0.08 | 5.0 - 150.0 | +/- 0.002 | +/- 0.05 | Bright annealed, slit edge, Ra <= 0.2 um |
| Thin Strip | 0.08 - 0.50 | 5.0 - 250.0 | +/- 0.005 | +/- 0.10 | Burr-free deburred edge, Ra <= 0.4 um |
| Thick Strip / Ribbon | 0.50 - 2.50 | 10.0 - 300.0 | +/- 0.015 | +/- 0.20 | Rounded edge or square slit edge |
| Round Wire | 0.05 - 8.00 (Dia) | -- | +/- 0.003 | -- | Bright smooth wire on spools / coils |
Low Ohmic Resistance and High Energy Efficiency: With an electrical resistivity of 0.33 micro ohm.m, Cr10Ni90 delivers significantly lower voltage drop compared to traditional Cr20Ni80 or FeCrAl alloys, minimizing energy loss during high-current electrolysis operations.
Dense Protective Oxide Film: The 10% chromium alloy composition forms an adherent, dense Cr2O3 and NiO passivation scale during high-temperature operation, resisting severe oxidation, corrosive vapor, and chemical wear.
Low Hydrogen Embrittlement Sensitivity: The stable austenitic microstructure maintains ductility and toughness in high-pressure hydrogen and oxygen generation zones, eliminating micro-cracking risks under dynamic pressure cycles.
Superior Cold-Forming and Welding Performance: With elongation exceeding 25%, DLX Cr10Ni90 strips can be stamped, laser welded, spot welded, or bent into complex interconnector profiles without edge splitting.
High Dimensional Consistency: Multi-pass precision cold rolling ensures tight thickness tolerances within +/- 0.005 mm, guaranteeing uniform contact pressure across multiple cell stacks.
Solid Oxide Electrolysis Cells (SOEC): Cr10Ni90 operates reliably at 600 deg C to 850 deg C operating temperatures, serving as current collector meshes, interconnector strips, and busbars.
Alkaline Water Electrolysis (AWE): Resists alkaline solutions (20% to 30% KOH) at elevated operating temperatures, providing durable internal electrical connections without heavy metal contamination.
Proton Exchange Membrane (PEM) Electrolyzers: Used in external balance-of-plant (BOP) conductive links, terminal busbars, and high-current connection junctions.
Quality Control & Testing
Every batch of DLX Cr10Ni90 strip undergoes rigorous laboratory inspection prior to dispatch:
Q: Why is Cr10Ni90 preferred over Cr20Ni80 in water electrolysis applications?
A: Cr10Ni90 contains 90% nickel, resulting in a much lower electrical resistivity (0.33 micro ohm.m) than Cr20Ni80 (1.09 micro ohm.m). This lower resistance reduces Joule heating losses during high-voltage and high-current electrical conduction, improving overall electrolyzer energy efficiency.
Q: Can DLX supply Cr10Ni90 strips in customized thicknesses and slit widths?
A: Yes. DLX supplies Cr10Ni90 in thicknesses from 0.02 mm to 2.50 mm and widths from 5.0 mm to 300.0 mm. Custom slitting, edge deburring, and continuous coil spooling are tailored to your assembly machinery.
Q: What is the maximum operating temperature for Cr10Ni90 strips?
A: Cr10Ni90 strips can operate continuously in air up to 1100 deg C and maintain high mechanical stability in hydrogen-reducing or steam environments up to 850 deg C.
Q: What is the standard packaging for export shipment?
A: Strips are wound on plastic spools or packed in coils, wrapped with waterproof film and desiccants, and secured in export-grade fumigated wooden cases to prevent moisture and mechanical damage.
Q: What is the minimum order quantity (MOQ) and sample policy?
A: The standard MOQ is 5 kg for stock specifications and 20 kg for custom dimensions. DLX provides 0.5 kg free material samples for laboratory testing and welding qualification.
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