C77000 Nickel Silver

C77000 Nickel Silver

54–57%
Copper Content
16.5–19.5%
Nickel Content
O/H02/ H04
Temper
C77000 nickel silver is a copper-nickel-zinc alloy offering an attractive silver-white appearance, excellent corrosion resistance, and good formability. It is widely used in musical instruments, decorative hardware, electronic components, and precision engineering applications.
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Lead Time: 3-5 Business Days

Product Overview

C77000 nickel silver is a copper-nickel-zinc alloy containing approximately 18% nickel, developed to provide a bright silver-colored appearance together with excellent corrosion resistance and mechanical performance. Despite its name, C77000 contains no actual silver and derives its color and properties from its nickel content.

Produced through rolling, drawing, and precision fabrication processes, C77000 offers excellent formability, dimensional stability, and surface finish quality. Its combination of aesthetic appeal, strength, and wear resistance makes it suitable for both decorative and functional applications.

C77000 nickel silver is extensively used in musical instruments, eyeglass frames, decorative hardware, electrical connectors, zippers, and precision industrial components where appearance, durability, and corrosion resistance are important.

Key Features

Attractive silver-white appearance
Excellent corrosion resistance
Good wear resistance
Reliable mechanical strength
Excellent formability and fabrication performance
Superior surface finish and polishability

Available Sizes

Copper Shape Thickness (mm) Width/Diameter (mm) Length (m)
Bar - Φ5-200 1-6
Wire - Φ0.05-10 Customize
Sheet 0.25-6 500-2500 1-6
Plate 6-200 200-3000 1-6
Strip 0.15-6 8-610 Customize
Tube OD: φ2-600; WT:φ0.2-100mm - 1-6
Coil 0.15-6 3-1250 1-6
Foil < 0.15 10-1350 Customize
Profile Customized Customize Customize

* Custom sizes available upon request. Contact our sales team for special requirements.

Technical Specifications

Precision data for engineering decisions. All values tested per ASTM standards.

01 Material Properties

Specification Value Notes
Cu Content 54–57% Nickel silver composition
Ni Content 16.5–19.5% Improves strength and appearance
Zn Content Balance Provides workability and strength
Density 8.7 g/cm³ Typical value
Electrical Conductivity ~5% IACS Based on temper
Thermal Conductivity ~29 W/m·K Moderate heat transfer
Tensile Strength 450–700 MPa Depends on temper
Elongation ≥15% Typical annealed/extruded condition
Fabrication Forming / Stamping / Drawing Good workability
ASTM Standard ASTM B122 / ASTM B151 EN & JIS available

Applications & Use Cases

Proven solutions across diverse industries. From aerospace to marine environments.

Frequently Asked Questions

Find answers to common questions about C77000 nickel silver composition, properties, and machining.

C77000 (commonly called 55-18 nickel silver: about 55% Cu, 18% Ni, 27% Zn) has Cu 53.5-56.5%, Ni 16.5-19.5%, Zn balance, plus Mn and Fe. It is covered by ASTM B122 (sheet / strip / plate), B151 (rod / bar), and B206 (wire); the EN designation is CuNi18Zn27 (CW410J).
Depending on temper, C77000 tensile strength ranges from about 414 MPa in the soft condition up to roughly 1000 MPa in spring temper, with yield strength of 186-621 MPa and elongation around 40% in softer tempers. It is a high-strength nickel silver used where spring properties and corrosion resistance matter.
Machinability is rated about 30 (versus C36000 free-cutting brass = 100), so it machines moderately but is not a screw-machine grade. It can be soldered, brazed, and gas-shielded arc welded; coated-metal-arc welding is not recommended.
Its silver-white appearance, strength, and corrosion resistance make it suitable for springs and connectors, marine and chemical hardware, eyewear frames, decorative trim, and precision instrument parts. It performs well in weak-acid and seawater-adjacent service but should be kept away from strong oxidizing acids.
Linsy offers C77000 nickel silver as rod, bar, sheet, strip, and wire to ASTM B122 / B151 / B206 on a custom basis. Standard lead time is 10-60 days depending on form, temper, and order size, with flexible low MOQ. Every order ships with an MTR / MTC; SGS reports are available on request, and RoHS / REACH documentation can be supplied. Quotes are typically returned within 1 hour, with responses within 24 hours.
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