If you are in the welding industry, you have likely heard the term AWS Class ERCuSi-A MIG & TIG. But what is it, and why is it important? This blog will discuss everything you need to know about AWS Class ERCuSi-A MIG & TIG, including its composition, properties, uses, and more.
What is AWS Class ERCuSi-A MIG & TIG?
AWS Class ERCuSi-A MIG & TIG is a welding filler wire comprising 98.6% copper and 1.4% silicon. It is commonly used for welding alloys, such as bronze, brass, and copper-nickel alloys. AWS Class ERCuSi-A MIG & TIG is available in various diameters, typically ranging from 0.030 to 0.125 inches.
ERCuSi-A MIG & TIG Welding Wire Composition
As mentioned, AWS Class ERCuSi-A MIG & TIG primarily consists of copper and silicon. Adding silicon improves the wire’s fluidity and weldability, making it easier for welding applications. AWS Class ERCuSi-A MIG & TIG also contains small amounts of other elements, such as zinc and manganese.
| Zn | Sn | Mn | Fe | Si | Al | Pb | Other |
| 1.0 | 1.0 | 1.5 | 0.50 | 2.8-4.0 | 0.01 | 0.02 | 0.50 |
ERCuSi-A MIG & TIG Coated Wire Mechanical Properties
AWS Class ERCuSi-A MIG & TIG has excellent tensile strength, with a minimum requirement of 45,000 psi. It also has good elongation, which means it can be bent or shaped without breaking. In addition, AWS Class ERCuSi-A MIG & TIG has good impact resistance, making it suitable for applications where the welded part may experience sudden shocks or vibrations.
| Tensile Strength, kpsi: | 50 min |
| Elongation in 2” (%): | 65% |
| Brinell Hardness | 80-100 |
ERCuSi-A MIG & TIG Welding Wire Physical Properties
AWS Class ERCuSi-A MIG & TIG electrode has a low melting point, typically around 1,980°F. It is also highly conductive, making it ideal for electrical applications. AWS Class ERCuSi-A MIG & TIG also has good thermal conductivity so that it can transfer heat efficiently from the welding torch to the workpiece.
ERCuSi-A MIG & TIG Coated Wire Trade Name
| Class | UNS | Oxford Alloys |
| ERCuSi-A | C61800 | Silicon Bronze |
ERCuSi-A MIG & TIG Welding Wire Parameters
| Diameter | Process | Volt | Amps |
GAS | |
| in | (mm) | ||||
| 1/16 | (1.6) | GTAW | 70-120 | 70-120 | ACHF using 100% Argon or Helium 2% Thoriated, Ceriated or Lanthanum Tungsten Electrode |
| 3/32 | (2.4) | GTAW | 120-160 | 120-160 | ACHF using 100% Argon or Helium 2% Thoriated, Ceriated or Lanthanum Tungsten Electrode |
| 1/8 | (3.2) | GTAW | 170-230 | 170-230 | ACHF using 100% Argon or Helium 2% Thoriated, Ceriated or Lanthanum Tungsten Electrode |
ERCuSi-A MIG & TIG Coated Wire Uses
AWS Class ERCuSi-A MIG & TIG welding wire is commonly used in welding copper alloys, brass, and bronze. It is also used in applications requiring electrical conductivity, such as welding electrical components. AWS Class ERCuSi-A MIG & TIG is also suitable for applications where corrosion resistance is important, such as in marine environments or the brewing industry.
ERCuSi-A MIG & TIG Welding Wire Corrosion Resistance
AWS Class ERCuSi-A MIG & TIG has excellent corrosion resistance, particularly in marine environments. Copper alloys, in general, are known for their corrosion resistance, and adding silicon further improves this property. AWS Class ERCuSi-A MIG & TIG is also resistant to organic acids, which makes it suitable for use in the food and beverage industry.
ERCuSi-A MIG & TIG Coated Wire Heat Treatment
AWS Class ERCuSi-A MIG & TIG does not require heat treatment after welding electrode. However, it is important to note that the welded joint may become brittle if exposed to temperatures above 500°F. For this reason, welding with AWS Class ERCuSi-A MIG & TIG is typically limited to room-temperature applications.
Conclusion
AWS Class ERCuSi-A MIG & TIG is a versatile and highly useful welding wire with various industrial applications. Its excellent corrosion resistance, mechanical and physical properties make it ideal for marine environments, electrical applications, and more. With its low melting point and ease of use, AWS Class ERCuSi-A MIG & TIG is an excellent choice for welding copper alloys and other filler metals. Whether you’re new to welding or a seasoned professional, AWS Class ERCuSi-A MIG & TIG is a must-have in your arsenal of welding tools.
Meet Heer, a dynamic and driven writer learning tricks of her trade in the metal industry. With a background in Digital Marketing, Heer brings a unique perspective to her writing, sharing valuable insights. Apart from blogging she like reading and hiking.
