July 19, 2021

Zinc Silicon Brass CuZn16Si4 (CC761S)

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CuZn16Si4 is silicon brass alloy, it has high tensile property and good corrosion resistance property. CuZn16Si4 is defined in casting standard of EN 1982. Cuzn16Si4 has two brass grades types: Cuzn16Si4-B (CB761S) and Cuzn16Si4-C (CC761S)

Reference Casting Standard:www.castingquality.com

EN 1982: Copper and copper alloys – Ingots and castings

 

CuZn16Si4 Equivalent material grade:

GB 1176 Grade ZCuZn16Si4

Cuzn16Si4-C(CC761S) Casting can be made by four casting processes:
Sand Casting
Investment Casting
Permanent Mold Casting
Continuous Casting (Centrifugal Casting).

Pressure Die Casting


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  1. Sand Casting

    Casting Quality focus on Metal Parts industry, we provide professional service in Metal Casting field.

    Sand Casting is a popular metal form method, are suitable for all materiel, such as grey iron, ductile iron, malleable iron, carbon steel, stainless steel, aluminum and bronze.

  2. Investment Casting

    also named as precision lost wax casting, mainly suitalbe for carbon steel and stainless steel parts. We also provide grey iron and ductile iron and aluminum and bronze parts by investment casting. It can achieve the best appearance with good tolerance

  3. Shell Casting

    Shell casting method is a good option to replace investment casting and sand casting. the quality is better than sand casting parts, suitable for bulk production.

  4. CNC Machining

    CNC Milling, CNC turning with 5 xix CNC center, we provide precision machining for all castings based on customers design drawings.

  5. CAD Design

    Mechanical Design service based on customers requirement, our software is Solidworks and AutoCAD.

  6. Tools/Mold Design

    Mould design and production will be served for metal casting ad plastic injection industry.  Based on our more than 10 years experience, we supply professional molds for our customers in Europe and North American.

CuZn16Si4 Chemical Composition Requirements:

Brass GradeChemical Composition/physical Properties, %%, max
GradeNumberDenominationAlCuNiPbSiZnFeMnPSbSn
CuZn16Si4-BCB761SIngots0.1078.5-82.01.00.63.0-5.0Balance0.50.20.020.050.25
CuZn16Si4-CCC761SCasting0.1078.0-83.01.00.83.0-5.0Balance0.60.20.030.050.3

No Heat Treatment Requirement for CuZn16Si4 casting.

CuZn16Si4-C (CC761S) Casting Mechanical Properties in EN 1982

Brass GradeBrass Mechanical Properties
GradeEN NumberCasting ProcessTensile Strength MPa, minYield Strength, MPa, minElongation, % minHardness, HBW, min
Cuzn16Si4-CCC761SSand Casting40023010100
Permanent Mould Cast5003008130
Pressure Die Cast5003405190
Centrifugal Casting5003008130

CuZn16Si4-C (CC761S) Casting Typical Application:

it’s well applied in sea water, and high pressure more than 4.5MPa and high temperature more than 250 ºC, such as Bearing, Valve body, Pump Impeller, Pump Bowl, Pipe Fittings, Marine hardware, ship propeller.
What means of C and B or CC/CB Symbol in EN1982?

The material symbol designation is based on the designation system give in ISO 1190-14.

A suffix –B is added to the designation to identify material in the form of ingots, ingots begin with prefix CB, for example CuZn16Si4-B (CB761S). A suffix –C is added to the designation to identify material in the form of castings, castings begin with CC for example CuZn16Si4-C (CC761S)

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