Alloy Grade UNS: C97300 Nickel-Leaded Bronze Alloy

  • Overview

    C97300, also known as nickel silver or leaded nickel brass, is a unique copper-nickel-zinc alloy distinguished by its silvery-grey appearance, unlike the typical golden hue associated with bronze. Despite its name, it contains no actual silver. The addition of nickel not only contributes to its distinctive color but also enhances its corrosion resistance, making it suitable for applications in various environments. While C97300 offers excellent corrosion resistance and good machinability due to the presence of lead, it is important to note that it possesses lower tensile strength and a lower melting point compared to other bronze alloys. This alloy does not respond to heat treatment, so its properties are primarily determined by its composition and manufacturing process.

  • Typical Uses

    Steam applications in turbines and pumps, packing rings, seal rings, labyrinth rings, and valve components and fittings.

  • MetalTek Designation

    MTEK 12% Ni 410

  • Poured At:

    Wisconsin Centrifugal Division

Similar Specifications

Cast UNS: C97300

Cast Grade: C97300

Cast ASTM: B271, B505, B584

Military/AMS: MIL-C-15345-7

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: n/a

Chromium: n/a

Manganese: n/a

Iron: n/a

Copper: 56

Nickel: 12

Lead: 10

Tin: 2

Silicon: n/a

Zinc: 20

Minimum Mechanical Properties

Tensile, ksi

0

Tensile, MPa

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Frequently Asked Questions

Nickel-silver alloys are copper-based alloys with nickel and zinc that mimic the appearance of silver while providing strength and corrosion resistance.

No, nickel-silver contains no actual silver. Its name comes from its silvery appearance, not its composition.

Nickel-silver has moderate electrical conductivity—lower than pure copper but suitable for resistors, switches, and decorative electronics.

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