Alloy Grade UNS: C81540 – Chromium Copper

  • Overview

    C81540 is a copper alloy with chromium added for strength and wear resistance. It maintains electrical conductivity and thermal stability at high temperatures. This makes it suitable for demanding applications. C81540 resists oxidation and softening but may corrode in some environments.

  • Typical Uses

    Applications where more strength and hardness than other copper alloys is needed.

  • MetalTek Grade

    COPPER Ni Si

  • Poured At:

    Wisconsin Centrifugal Division

Similar Specifications

Cast UNS: C81540

Cast Grade: C81540

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: n/a

Chromium: 0.10-0.60

Manganese: n/a

Iron: n/a

Copper: BAL

Nickel: 2.0-3.0

Lead: n/a

Tin: n/a

Silicon: 0.40-0.80

Zinc: n/a

Other: Zr

Minimum Mechanical Properties

Brinell 3000 KG Typical:

0

Tensile, ksi

0

Tensile, MPa

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Frequently Asked Questions

High conductivity alloys are metals like copper or silver alloys engineered for superior electrical or thermal conductivity in demanding systems.

Copper, silver, and specialized alloys with elements like chromium or zirconium are common in high conductivity alloys.

Electrical conductivity in alloys is measured in % IACS (International Annealed Copper Standard) or Siemens per meter using resistivity testing.

Explore Other Alloys

Gears

Non-Ferrous

Non-ferrous alloys are, literally, materials that are not iron-based. While others may provide non-ferrous materials of other materials, the MetalTek family of non-ferrous alloys are copper-based. In general, these materials deliver high strength, and excellent wear and corrosion resistance. They are often found in marine applications and also bushing, bearing, and gear environments.
Stainless Steel Parts

Stainless Steel

Stainless steels owe their ability to resist corrosion primarily to the presence of a passive film on their surface. Chromium is chiefly responsible for formation of the passive film. Iron ceases to rust at approximately 12% chromium content and resistance to oxidizing corrosives increases rapidly with chromium content up to approximately 20%.
Petrochemical Fittings

Specialty Alloys

Specialty Alloys comprise a broad group of materials that deliver properties for more demanding applications, use more exotic or expensive materials, or require special processes to manufacture. Where standard materials may not offer desired performance, specialty alloys (including those that are modified further) may be a sensible selection.