CuZn20Al Copper Alloy Performance Standard DIN 17660-1974

Grade: CuZn20Al Aluminum Brass

Code: 2.0460

Standard: DIN 17660-1974

● Chemical Composition:

Copper Cu: 76.0~79.0

Zinc Zn: Balance

Lead Pb: ≤0.07

Aluminum Al: 1.8~2.3

Arsenic As: 0.020~0.035

Iron Fe: ≤0.07

Manganese Mn: ≤0.1

Nickel Ni: ≤0.1

Phosphorus P: ≤0.01

Arsenic + Phosphorus As+P: ≤0.035

Total Impurities (Others): ≤0.1

Introduction to Copper Alloys:  

Adding certain alloying elements (such as zinc, tin, aluminum, beryllium, manganese, silicon, nickel, phosphorus, etc.) to pure copper forms copper alloys. Copper alloys exhibit good electrical conductivity, thermal conductivity, and corrosion resistance, along with high strength and wear resistance. Depending on their composition, copper alloys are categorized into brass, bronze, etc.  

Brass is a copper alloy with zinc as the primary alloying element. Based on chemical composition, brass is divided into ordinary brass and special brass.  

Ordinary brass is a binary copper-zinc alloy. Due to its good plasticity, it is suitable for manufacturing sheets, rods, wires, tubes, and deep-drawn parts such as condenser tubes, radiator tubes, and mechanical and electrical components. Brass with average copper contents of 62% and 59% can also be cast, known as cast brass.  

Special brass is formed by adding elements such as aluminum, silicon, manganese, lead, and tin to copper-zinc alloys to achieve higher strength, corrosion resistance, and good casting properties. Examples include lead brass, tin brass, aluminum brass, silicon brass, manganese brass, etc.  

Lead brass offers excellent machinability and wear resistance, widely used in manufacturing clock parts and for casting bearings and bushings. Tin brass has good corrosion resistance and is extensively used in marine components.

Aluminum in aluminum brass enhances the strength and hardness of brass and improves its corrosion resistance in the atmosphere. Aluminum brass is used for manufacturing corrosion-resistant parts.  

Silicon in silicon brass improves the mechanical properties, wear resistance, and corrosion resistance of copper. Silicon brass is mainly used for marine components and chemical machinery parts.  

Nickel silver (white copper) is a copper-based alloy with nickel as the main additive element. It appears silvery-white with a metallic luster, hence the name. Copper and nickel can form an infinite solid solution with each other, resulting in a continuous solid solution, meaning it remains an α-single-phase alloy regardless of the ratio. When nickel is melted into red copper and the content exceeds 16%, the resulting alloy becomes as white as silver. The higher the nickel content, the whiter the color. The nickel content in nickel silver is typically 25%.

Shanghai Qianfu Metal Materials Co., Ltd. is an enterprise engaged in the production and sales of non-ferrous metal materials. Main products: phosphor copper wire, phosphor copper rod, phosphor copper tube, phosphor copper flat wire; red copper, brass, nickel silver, tin bronze, aluminum bronze, silicon bronze, beryllium bronze, lead materials. The company has expanded both domestic and international markets, accepts custom orders for special specifications, ensures timely delivery, and guarantees quality! To meet the special needs of a wide range of users, our company has specially imported copper materials including: oxygen-free copper, red copper, phosphorus deoxidized copper, red copper, brass, lead brass, tin brass, iron brass, aluminum brass,

manganese brass, silicon brass, nickel brass, tin bronze, tin phosphor bronze, aluminum bronze, beryllium bronze, chromium bronze, zirconium bronze, chromium zirconium bronze, iron bronze, nickel silicon bronze, cadmium bronze, magnesium bronze,

silicon bronze, zinc nickel silver, iron nickel silver, aluminum nickel silver, manganese nickel silver, and over 50 other series. Regularly stocked in various specifications: copper strips, copper tubes, copper rods, copper thin sheets, copper thick sheets, copper plates,

copper strips.

Main products of the company:

1. Lead Brass/Lead Bronze: C19150, C31400, C31600, C36000, C33500, UH-12, C19160, etc.

2. Phosphor Bronze: Hsn62-1, Qsn4-3, Qsn5-5-5, Qsn6.5-0.1, Qsn4-0.3, Qsn4-4-2.5, Qsn4-4-4, QSn7-0.2, QSn6-6-3, etc.

3. Tin Phosphor Bronze: C93200/SAE660, C93700/SAE64, C54400, C51000, C52100, C48500, C46200, CC493K, etc.

4. Silicon Bronze/Silicon Brass: HSi80-3, QSi3-3.5-1.5, QSi3-1, QSi1-3, QSi1.8, QSi1.5-0.3, C65100, C65500, C65800, etc.

5. Nickel Silver/Copper-Nickel Alloys: C71000, C70400, C71500, C70600, B10, B19, B20, B30, BFe30-1-1, BFe10-1-1, C75200, C79200, Monel400, MonelK500, N04400, N05500, etc.

6. Manganese Brass/Manganese Nickel Silver: HMn62-3-1, QMn5, HMn57-3-1, HMn58-2, BMn3-12, BMn40-1.5, etc.

7. Aluminum Bronze: QAl9-2, QAl9-4, QAl10-3-1.5, QAl10-4-4, C62300, C61400, C63000, C63200, C95400, ZCuZn25Al6Fe3Mn3, etc.

8. Tellurium Copper: C14500, QTe0.5…

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