These are the purist of coppers (C101 - C108). They have a minimum of 99.95% copper.
Oxygen-Free Coppers
This is often used by customers that are threading parts to prevent cracking in the thread zone.
TRQ - Thread Roll Quality
This alloy is considered “standard brass rod” and is known as the bread and butter of the machining industry.
The 2.5-3% lead content provides lubricity to those machining small or large parts that could be hollow or threaded.
Alloy 360
Copper alloys with combinations of tin, phosphorus, lead and silicon are used to impart strength, wearability, and corrosion resistance.
Bronzes
This type of metal has the highest conductivity among coppers and is used for electrical conductors.
Oxygen-Free Copper
The standard ASTM spec for C360. Nominal certification for Chemistry is deemed acceptable to certification criteria. Mechanical requirements are also taken and often not reported, but domestic mills place ASTM B16 on the certification as to indicate the compliance to the specification.
ASTM B16
This is the #1 market for C360 brass
Plumbing
This alloy is a non-proprietary low lead alternative that can be recycled into itself or standard 360. It doesn’t have any added elements to give it additional lubricity and therefor is not considered a highly productive low lead alternative.
C27450
These copper alloys with include small amounts of elements including beryllium, cobalt, nickel, and iron (C162 - C199).
High Copper Alloys
This formula allows customer's to understand their fully absorbed cost model:
Price of starting stock + Machining Cost – Scrap Value
Cycle Cost
This type of Copper (C110) is the most predominant copper alloy in the U.S.
Used in plumbing fittings & electrical components.
Tough Pitch Copper
An engineered alloy of copper, nickel and tin, combines lubricity and wear resistance cycles and increase equipment reliability.
Toughmet®
This market segment leads the charge in brass rod consumption and can be found in items such as door locks, lighting fixtures, and faucets.
Builders Hardware
This type of copper (C122) is the most predominant copper alloy in Europe. It has lower conductivity that C110, but better embrittlement resistance and welding characteristics.
Used for electromechanical hardware connectors.
Phosphorus-Deoxidized Copper
The most common and economical casting process where the material is melted into smaller furnaces and then once testing within specification, it is poured into a primary holding furnace where it exits and is cooled through a water quench process prior to exit.
Continuous Casting
This material includes C172 & C17510.
Applications include: electronic connectors, screw machine parts, & plastic molds.
Beryllium Copper