Copper Crazy!
What is the purist copper alloy?
C101 Oxygen-Free Copper
These 3 measurements are the main drivers to define mechanical properties (remember the dance?)
Tensile, Yield, Elongation
This alloy is considered “standard brass rod” and is known as the bread and butter of the machining industry.
Alloy 360
Copper with typically 12-15% of this element form Bronze
Tin (Sn)
This edge type is most prevalent for copper bar in the Electrical market
FRE full round edge
Grade A copper is the material traded and sold on the Comex (Commodities Exchange), and the LME (__ __ __).
London Metal Exchange
The standard ASTM spec for C360 rod
ASTM B16
What is the process (think pencil sharpener) that makes it easier to feed brass rod into screw machines
Chamfering
An Engineered alloy of copper, nickel, and tin which combines lubricity and wear resistance cycles and increases equipment reliability
Toughmet(R)
What is the most common plating material for copper bar used in the USA market?
Silver flash
The blue-green coating that is formed when copper metal is slowly oxidized when it is exposed to the atmosphere for long periods of time
Patina
Nominal certifications (nom nom vs actuals) for Chemistry are common practice for which region of suppliers?
Domestic mills
These programs are offered by our mill partners to close the lifecycle of brass rod products for our customers (In my Jimmy Pot voice)
Scrap buy back
This alloy is a lead free alternative. With silicone added for lubricity there is a closed scrap stream and can NOT go into C360.
C693
This is the predominant copper alloy in the U.S. electrical market
C110
Electrolytic Tough Pitch Copper (ETP)
This material is represented by alloys such as C172, C173, and C17510.
Applications include: electronic connectors, screw machine parts, & plastic molds
Beryllium Copper
This specification establishes the requirements for copper bar, rod, and shapes for electrical (bus) bar and other general applications.
ASTM B187
This market segment leads the charge in brass coil and sheet consumption and can be found in items such as door locks, lighting fixtures, and faucets.
Builders Hardware
This alloy is commonly used in the Aerospace market for bushings and bearing on landing gears
C630 - Al Ni
This type of copper 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.
C122 - Phosphorus-Deoxidized Copper
This alloy is most commonly used for welding and cutting torch tips
Tellurium bearing copper (C145)
This specification establishes the requirements for copper sheet, strip, plate, and rolled bar produced from various 100 series coppers.
ASTM B152
The most economical casting process where the material is horizontally or vertically poured out into a dye and cooled
Continuous Casting
This alloy is a low lead alternative that can be recycled into itself or standard 360. Without an alloying element for lubricity, it is not as productive for screw machines
C27450
This copper bar manufacturing method provides lower production costs and quicker speed to market (remember 1, 2, 3 & done not 4,5,6,7,8,9,10...)
Upcast feeding conform