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AWS Class RBCuZn-C MIG & TIG Welding Wire – Composition, Properties, and Uses

AWS Class RBCuZn-C MIG & TIG

AWS Class RBCuZn-C is a popular copper alloy used in welding. It has excellent corrosion resistance, high strength, and good thermal conductivity. This alloy is often used in marine and offshore structures, automotive parts, and electrical components. In this blog post, we will discuss the mechanical and physical properties of AWS Class RBCuZn-C, composition, and uses in various industries.

What is AWS Class RBCuZn-C MIG & TIG?

AWS Class RBCuZn-C MIG & TIG is a Copper Alloy welding classification system used to identify different types of filler metal used in electric arc welding. It’s designed to meet the American Welding Society (AWS) classification requirements for mild steel and low alloy steels, and high conductivity alloys like copper and aluminium. The key features of this type of alloy are its excellent electrical and thermal conductivity, good corrosion resistance, easy formability, and high malleability when welded. This makes it an ideal material choice for projects that require strong joints with long-lasting performance – such as weatherproof gutters and roof panels on buildings.

RBCuZn-C MIG & TIG Welding Wire Composition

AWS Class RBCuZn-C is a copper-nickel-iron alloy that contains approximately 64% copper, 22% nickel, and 14% iron. It also contains small amounts of manganese and tin. The alloy is primarily used for its high corrosion resistance in seawater and other harsh environments.

Cu Mn

Sn

Pb

Fe

Si

Zn

Al OET
56.0- 60.0 0.01-
0.50
0.80- 1.10 0.05
max
0.25- 1.20 0.04-
0.15

Bal

0.01
max
0.50
max

RBCuZn-C MIG & TIG Welding Wire Mechanical Properties

AWS Class RBCuZn-C has a tensile strength of 50,000-70,000 psi, yield strength of 20,000-40,000 psi, and an elongation of 12-35%. Its hardness ranges from 70-95 Brinell. These properties make it suitable for welding marine and offshore structures, pipes, and tanks.

As required by AWS 5.8 Tensile Strength MPa (ksi) Yield Strength MPa (ksi)

Elongation
%

AWS
Requirements

Not Specified

Typical Results – As welded 390 (56)

RBCuZn-C MIG & TIG Welding Wire Physical Properties

AWS Class RBCuZn-C has a specific gravity of 8.9 g/cm^3, a melting point of 1,040-1,110°C, and a thermal conductivity of 51 W/m°K. Its coefficient of thermal expansion is 17.4 µm/m°C. These properties make it an excellent choice for electrical components and heat exchangers.

RBCuZn-C MIG & TIG Welding Wire Trade Name

Class UNS Oxford Alloys
RBCuZn-C C68100 Low Fuming Bronze

RBCuZn-C MIG & TIG Welding Wire Parameters

Diameter

Process

Volt

Amps

Shielding Gas

in

(mm)

1/16

1.6

GTAW

70-120

100% Helium

3/32

2.4

GTAW

120-160

1/8

3.2

GTAW

170-230

RBCuZn-C MIG & TIG Welding Wire Uses

AWS Class RBCuZn-C filler wire is commonly used in the marine and offshore industry for welding ship hulls, tanks, and pipes. It is also used in the automotive industry for welding frames, panels, and other structures. Additionally, it is used in electrical and electronics applications such as heat exchangers, connectors, and circuit boards.

RBCuZn-C MIG & TIG Welding Wire Corrosion Resistance

AWS Class RBCuZn-C welding alloy has excellent resistance to corrosion in seawater and other harsh environments. It is resistant to pitting and crevice corrosion, making it ideal for marine and offshore applications. It is also resistant to corrosion from chemicals such as sulfuric acid and hydrochloric acid.

RBCuZn-C MIG & TIG Welding Wire Heat Treatment

AWS Class RBCuZn-C welding electrode does not require heat treatment after welding. It is recommended to clean the weld area thoroughly to remove any residue that may cause corrosion.

Conclusion

AWS Class RBCuZn-C is a versatile copper alloy used in welding applications for its excellent corrosion resistance, high strength, and good thermal conductivity. Its mechanical and physical properties make it ideal for marine and offshore structures, automotive parts, and electrical components. Its resistance to corrosion in harsh environments and ease of use make it a popular choice for welding professionals. Knowing the properties of AWS Class RBCuZn-C can help one decide if this alloy is the right choice for their specific welding needs.

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