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AWS Class E385-16 Coated Electrodes – Composition, Properties, and Uses

AWS Class E385-16 Coated Electrodes

AWS Class E385-16 coated electrodes are a popular choice for welding applications, especially in environments that require high corrosion resistance. These electrodes have unique physical and mechanical properties, making them stand out among other welding materials. This blog post will explain what AWS Class E385-16 coated electrodes are, their composition, physical and mechanical properties, and their uses. Additionally, we will explore these electrodes’ heat treatment and corrosion resistance properties.

What are AWS Class E385-16 Coated Electrodes?

AWS Class E385-16 Coated Electrodes are welding electrodes with a low hydrogen, iron powder type coating with basic fluxing agents. They are made from mild steel to provide superior arc stability with minimal spatter. These electrodes offer excellent mechanical properties and are designed for welding steels containing up to 0.55% carbon. The operating range is wide, and the weld-deposited metal has good impact toughness at -50°C (-58°F). They meet or exceed the requirements of ASTM A5.1-94 Specification for Carbon Steel Electrodes for Shielded Metal Arc Welding (SMAW).

AWS Class E385-16 Welding Electrodes Composition

AWS Class E385-16 welding wire are classified as stainless steel electrodes and are usually made up of a mixture of chromium, nickel, and molybdenum. The chemical composition requirements for these electrodes are specified by the American Welding Society (AWS) and consist of 19% to 22% chromium, 12.5% to 14.5% nickel, and 2.5% to 3.5% molybdenum.

Grade C Cr Cu Fe Mn Mo Ni N P Si S
SS E385-16 0.015 max 20.5 max 1.70 max Bal 2.10 max 4.60 max 25.2 max 0.04-0.08 0.018 max 0.45 max 0.009 max

AWS Class E385-16 Coated Electrodes Physical Properties

The physical properties of AWS Class E385-16 filler metal determine their hardness, density, and melting point. The electrodes have a density of 7.6 and 8.0 g/cm³, a melting point of around 1450°C, and a hardness between 75 and 85 HRB. These physical properties ensure that the electrodes can withstand high temperatures without degrading, maintain high structural integrity for welding operations, and resist cracking under high pressure.

AWS Class E385-16 Welding Electrodes Mechanical Properties

The mechanical properties of AWS Class E385-16 electrodes vary depending on their welding applications and the specific AWS class. These electrodes have high tensile strength, yield strength, and elongation at break. The minimum tensile strength for these electrodes is 620 MPa, the minimum yield strength is 485 MPa, and the minimum elongation at break is 20%. These properties make them ideal for welding in environments that require high resistance to various forms of stress.

AWS Class E385-16 Coated Electrodes Trade Names

Class UNS Oxford Alloys BOHLER SANDVIK
E385-16 W88904 Alloy 385-16 THERMANIT 20/25 CUW EXATON 20.25.5.LCUR

AWS Class E385-16 Welding Electrodes Parameters

Diameter Length

Amperage

Flat

Vertical & Overhead

3/32”

12”

70-85

65-75

1/8”

14”

85-110

80-90

5/32”

14”

110-140

100-120

3/16”

14”

120-160

110-130

AWS Class E385-16 Coated Electrodes Uses

AWS Class E385-16 are versatile and can be used in various applications, including welding of dissimilar metals and high-stress environments. They are typically used in the petrochemical, power generation, and maritime industries. Due to their unique properties, they can be used to weld various metals like stainless steel, ferritic, martensitic, and austenitic steel.

AWS Class E385-16 Welding Electrodes Heat Treatment

Heat treatment of AWS Class E385-16 wire can be carried out as per the manufacturer’s guidelines. The electrodes can be air or water-cooled after welding to minimize hardening. Heat treatment is usually carried out to enhance the mechanical properties and to relieve any residual stress in the weld.

AWS Class E385-16 Coated Electrodes Corrosion Resistance

AWS Class E385-16 filler wire have high corrosion-resistant properties. Chromium and molybdenum in the electrode composition are essential for superior corrosion resistance. The coating on the electrodes offers excellent protection against oxidation and other forms of corrosive attacks.

Conclusion

AWS Class E385-16 coated electrodes are highly demanded welding in various industries that require high corrosion resistance and superior mechanical properties. Understanding the chemical composition, physical properties, and mechanical properties is essential for welding professionals to choose the right electrode for the right application. Additionally, these electrodes’ heat treatment and corrosion-resistant properties must be considered when welding operations. By selecting AWS Class E385-16 coated electrodes, welders can achieve the desired welding results and maintain high-quality standards.

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