▸▸Industrial Standards◂◂
The alloys are ❶ for forging and ❷ for casting.
Phosphor bronze castings: PBC2, 2B, 2C, 3B, 3C.

▸▸The notation after ◂◂
❶ B: Metal die casting
❷ C: Continuous casting
❸ None: Sand casting

Q: What is the difference between red copper, brass, bronze, and white copper?

In our daily lives, we often hear about red copper, yellow copper, bronze, white copper, etc. Are they all copper?
What is the difference between them?

(i) Red Copper

Red copper is pure copper, also known as purple copper, with good electrical and thermal conductivity, excellent plasticity, and easy hot and cold pressure processing.
It is easily processed by hot and cold pressure, and is used in a large number of products requiring good electrical conductivity, such as wire, cable, brushes, and electrolytic copper for EDM.

High quality red copper with high purity, fine organization and low oxygen content. No porosity, trachoma, looseness, and excellent electrical conductivity.
Suitable for electro-etching molds, heat treatment process, non-directional electrodes, suitable for fine and fine beating.

(ii) Brass

Brass is an alloy composed of copper and zinc. If the brass is composed of copper and zinc, it is called ordinary brass.
If it is an alloy of two or more elements, it is called special brass. For example, lead, tin, manganese, nickel, lead, iron and silicon form a copper alloy.

Brass has strong wear resistance. Special brass, also known as special brass, has high strength, hardness and chemical corrosion resistance.
It also has outstanding mechanical properties for cutting and machining. Seamless brass tubes are made from brass that is soft and has strong wear resistance.

Seamless brass tubes are used in heat exchangers and condensers, low-temperature piping, and subsea transport tubes. It can be used in the manufacture of sheets, bars, pipes, and cast parts.
Containing 62% to 68% copper, it has strong plasticity and can be used in the manufacture of pressure-resistant equipment, etc.

(iii) White Copper

A copper alloy with nickel as the main added element. Copper-nickel binary alloy called ordinary white copper.
White copper alloys with manganese, iron, zinc, aluminum, etc. are called complex white copper.
Industrial white brass is divided into two categories: structural white brass and electrical white brass.

Structural white brass: characterized by good mechanical properties and corrosion resistance, and beautiful color.
It is widely used in the manufacture of precision machinery, eyeglass parts, chemical machinery and marine components.

Electrical white brass: generally has good thermoelectric properties. Manganese brass, copper, and copper are manganese brasses with different manganese content.
It is used for manufacturing precision electrical instruments, varistors, precision resistors, strain gauges, thermocouples, etc.

(iv) Bronze

Bronze is the earliest alloy used in our country and has a history of over 3,000 years.
The original bronze refers to copper-tin alloy, after the copper alloy other than brass and white copper are called bronze, and often in the name of bronze before the name of the first major added element.

Tin bronze has good casting properties, good friction reduction properties and good mechanical properties, and is suitable for the manufacture of bearings, worm gears, gears, etc.
Lead bronze gold fire hydrant wrench is a widely used bearing material for modern engines and grinding machines.
Aluminum bronze has high strength, good wear resistance and corrosion resistance, and is used for casting highly loaded gears, shaft sleeves, and marine propellers.
Phosphor bronze has a high elastic limit, good electrical conductivity, suitable for the manufacture of precision springs and electrical contact components.
Beryllium bronze is also used in the manufacture of coal mines, oil depots and other non-sparking tools.
Beryllium copper is an oversaturated solid solution copper-based alloy, is mechanical properties, physical properties, chemical properties and good corrosion resistance.
Powder metallurgy production for tungsten steel, high carbon steel, high temperature resistant super hard alloy made of molds need to electro-etching, because the ordinary electrode loss, slow speed, tungsten copper is more ideal material. Bending strength ≥667Mpa.

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