Copper-Nickel Alloy Sheets Plate 18Ni Board Flat Stock Thicknesses 0.2mm- 3mm

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Beschreibung

Copper-Nickel Alloy Sheet 18Ni — Precision Flat Stock for Demanding DIY & Fabrication Work

When a project calls for a metal sheet that resists corrosion, holds tight tolerances, and machines cleanly, standard steel or aluminum often falls short. Hobbyists, makers, and small-shop fabricators working on electrical shielding, heat exchangers, marine hardware, or decorative metalwork need a material that performs reliably across a range of thicknesses without warping or pitting. These copper-nickel alloy sheets are stocked specifically for that gap.

Each copper-nickel alloy sheet is cut from 18Ni-grade Cu-Ni flat stock. Available panel sizes run from 100×100 mm (approx. 3.9×3.9 in) up to 100×300 mm (approx. 3.9×11.8 in) and 150×150 mm (approx. 5.9×5.9 in), with thickness options spanning 0.2 mm through 3 mm (approx. 0.008–0.118 in). Sheets are supplied in 1-piece or 2-piece quantities depending on the variant selected.

Typical use cases include RF/EMI shielding enclosures where conductivity and corrosion resistance must coexist, thin shim stock for precision mechanical assemblies, decorative inlay work in woodworking and jewelry, and replacement flat stock for marine or plumbing fittings exposed to moisture. The combination of copper's conductivity and nickel's corrosion resistance makes these sheets a practical choice for copper-nickel alloy sheet applications in both indoor and outdoor environments.

⚙️ Compatibility: Suitable for soldering, brazing, light machining, and bending. Compatible with standard metalworking tools. Verify thickness tolerance requirements against your project spec before ordering.

✅ Key Features of These Copper-Nickel Alloy Sheets

  • 🔩18Ni Cu-Ni Alloy Grade — The 18% nickel content delivers measurably better corrosion resistance than pure copper sheet, particularly in humid, salt-spray, or mildly acidic environments.
  • 📐Wide Thickness Range (0.2–3 mm) — Fifteen size-and-thickness combinations let you match the sheet to your exact structural or shielding requirement without cutting down oversized stock.
  • ✂️Clean-Cut Flat Stock — Panels are supplied with flat, burr-minimized edges suitable for direct use or light finishing; no mill scale to remove before fabrication.
  • 🌊Corrosion-Resistant Surface — The nickel-copper matrix resists oxidation and surface pitting under typical workshop and light outdoor exposure conditions.
  • Good Electrical Conductivity — Retains meaningful copper conductivity, making these sheets useful for grounding straps, EMI gaskets, and conductive shim applications.
  • 📦Flexible Pack Quantities — Order as a single piece or select the 2-piece option for projects requiring matched pairs or a spare, with consistent dimensions across the pack.

📐 Technical Specifications — Copper-Nickel Alloy Flat Sheet

Material Copper-Nickel Alloy (18Ni grade)
Available Widths × Lengths 100×100 mm, 100×200 mm, 100×300 mm, 150×150 mm
Available Thicknesses 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.8 mm, 1 mm, 1.5 mm, 2 mm, 3 mm
Width × Length (Imperial approx.) ~3.9×3.9 in to ~5.9×11.8 in
Thickness (Imperial approx.) ~0.008 in to ~0.118 in
Surface Finish See variant options
Tensile Strength See variant options
Pack Quantity 1 Pcs or 2 Pcs (see variant options)
Machinability Suitable for sawing, drilling, and light milling
Weldability Brazeable and solderable; TIG/MIG — Contact us to confirm

❓ Frequently Asked Questions

How do I choose the right thickness for my project?

For shielding or decorative inlay work, thinner sheets (0.2–0.5 mm) are easier to cut and form. For structural shims or load-bearing flat stock, 1–3 mm provides more rigidity. If you are unsure, measure the gap or slot your sheet needs to fill and select the next standard thickness up.

Is this material strong enough for mechanical shim applications?

Copper-nickel alloys offer moderate tensile strength — generally higher than pure copper but lower than stainless steel. For light-load shim applications (alignment, spacing, vibration damping) the 1–3 mm variants are appropriate. For high-load structural shims, consult your project's load specification before ordering.

Will these sheets corrode if used outdoors or near water?

The 18% nickel content significantly improves corrosion resistance compared to plain copper. These sheets perform well in humid indoor environments and light outdoor exposure. For continuous immersion in salt water or aggressive chemicals, additional protective coating is recommended.

Are these sheets compatible with standard metalworking tools?

Yes. Copper-nickel alloy flat stock can be cut with tin snips or a fine-tooth metal saw (thinner gauges), drilled with standard HSS bits, and bent over a brake or by hand for thinner variants. Thicker sheets (2–3 mm) benefit from carbide-tipped tooling for cleaner cuts.

Can I solder or braze these sheets?

Yes. Copper-nickel alloys are solderable with standard rosin-core or silver solder and brazeable with copper-phosphorus or silver-based brazing alloys. Clean the surface with fine abrasive or flux before joining to ensure a strong bond.

What is the difference between the 1-piece and 2-piece quantity options?

The 2-piece option ships two sheets of the same size and thickness in one order — useful when you need a matched pair for symmetrical assemblies or want a backup piece for practice cuts. The 1-piece option is the single sheet at the listed dimensions. Both options ship the same panel size; only the quantity differs.

How do I decide between the 100×200 mm and 150×150 mm panels for the same project area?

Both panels cover a similar total area (~200 cm²). Choose 100×200 mm when your project has a long, narrow profile (e.g., a heat exchanger fin or a rectangular enclosure wall). Choose 150×150 mm when you need a square format for symmetric shielding plates, decorative tiles, or square shim blanks.

🛒 Select your Width × Length × Thickness and Amount above, then add to cart.

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