Alloy Grade UNS: C85700 – Yellow Brass

  • Overview

    C85700, commonly known as leaded yellow brass, is a widely used copper-zinc alloy that strikes a balance between cost-effectiveness and desirable properties. Its composition of 61% copper and 36% zinc, with a small addition of lead, gives it a distinctive golden color and enhances its machinability, making it readily adaptable to various manufacturing processes. The lead content acts as an internal lubricant during machining, improving cutting speeds and tool life. This alloy is often favored for its combination of moderate strength, corrosion resistance, and ease of fabrication, making it a popular choice for a wide range of applications where these characteristics are desired.

  • Typical Uses

    Bushings and fittings.

  • MetalTek Grade

    YELLOW BRASS

Similar Specifications

Cast UNS: C85700

Cast Grade: C85700

Cast ASTM: B271, B505, B584

Typical Chemical Composition (% by wt.)

Aluminum: 0.8

Carbon: n/a

Chromium: n/a

Manganese: n/a

Iron: 0.7

Copper: 61

Nickel: 1

Lead: 1.2

Tin: 1

Silicon: 0.05

Zinc: 36

Minimum Mechanical Properties

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.