C76400 Nickel Silver

C76400 Nickel Silver

54–57%
Copper Content
16.5–19.5%
Nickel Content
O/H02/ H04
Temper
C76400 nickel silver is a copper-nickel-zinc alloy offering an attractive silver-white appearance, excellent corrosion resistance, and good mechanical strength. It is widely used in decorative hardware, musical instruments, electrical components, and precision engineering applications.
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Lead Time: 3-5 Business Days

Product Overview

C76400 nickel silver is a copper-nickel-zinc alloy containing approximately 18% nickel, designed to provide a bright silver-colored appearance while maintaining excellent corrosion resistance and mechanical performance. Unlike sterling silver, C76400 contains no silver and derives its appearance from its nickel content.

Produced through rolling, drawing, and precision fabrication processes, C76400 offers excellent formability, dimensional stability, and wear resistance. Its combination of aesthetic appeal and engineering performance makes it suitable for both decorative and functional applications.

C76400 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

Excellent seawater corrosion resistance
Superior impingement and erosion resistance
High thermal conductivity
Good resistance to biofouling
Reliable mechanical strength
Long service life in cooling water systems

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 450–650 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 C76400 nickel silver composition, properties, and how it compares to C77000.

C76400 contains Cu 58.5-61.5%, Ni 16.5-19.5%, Zn balance, with Mn up to 0.5% and Fe up to 0.25%. It is covered by ASTM B151 (rod / bar) and B206 (wire); the EN designation is CuNi18Zn20 (CW409J), also known as approximately BZn18-18.
Both are 18%-nickel silver grades, but C76400 has higher copper (58.5-61.5% vs C77000's 53.5-56.5%) and lower zinc (about 20% vs about 27%), giving slightly different strength, ductility, and forming behavior. C77000 (55-18) is the higher-zinc, higher-strength variant; pick based on the required formability and spring characteristics.
In the H04 (full-hard) temper, C76400 rod reaches about 620-760 MPa tensile strength (485-655 MPa for larger diameters); softer tempers are in the 380-450 MPa range. Density is about 8.72 g/cm3 and electrical conductivity is roughly 5.7% IACS.
Its combination of strength, corrosion resistance, and silver-white finish suits coins, medallions, decorative hardware, tableware, deep-drawn parts, springs, connectors, and marine or chemical components. It is well suited to cold forming and precision stamping.
Linsy supplies C76400 nickel silver as rod, bar, wire, and strip to ASTM B151 / B206, made to order with a standard 10-60 day lead time by size and quantity and low MOQ for custom runs. Each shipment includes an MTR / MTC, with SGS reports on request, plus RoHS / REACH compliance statements. Quotes are typically returned within 1 hour, with responses within 24 hours.
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