Alloy Grade UNS: C81500 – Chromium Copper

  • Overview

    C81500, known as chromium copper, is a unique copper alloy that bridges the gap between high conductivity and robust mechanical properties. The addition of chromium to the copper matrix significantly enhances its strength and hardness without significantly compromising its electrical and thermal conductivity. This makes C81500 an excellent choice for applications where both conductivity and durability are essential, such as electrical contacts, resistance welding electrodes, and structural components in electrical systems. Furthermore, it exhibits good wear resistance and corrosion resistance, ensuring long-term performance and reliability in demanding environments. This combination of properties makes C81500 a valuable material for applications requiring a balance of conductivity, strength, and resistance to wear and corrosion.

  • Typical Uses

    Cams, fittings, flanges, forming rolls and dies, ordnance parts, shaft sleeves, steel mill nuts, worm gears. Other typical uses include hydraulic cylinder parts, heavy load bearings, hooks, large valve stems, struts, and rudders.

  • MetalTek Grade

    CHROME COPPER

Similar Specifications

Cast UNS: C81500

Cast Grade: C81500

Military/AMS: MIL-C-19310A

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: n/a

Chromium: 1

Manganese: n/a

Iron: n/a

Copper: BAL

Nickel: n/a

Lead: n/a

Tin: n/a

Silicon: n/a

Zinc: n/a

Minimum Mechanical Properties

Brinell 3000 KG Typical:

0

Tensile, ksi

0

Tensile, MPa

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

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.