AWS Class EB2 SAW & Flux is a type of welding electrode widely used in several industries, such as construction, automotive, and shipbuilding. This welding process is specifically designed for high-strength applications and is known for its superior performance. This blog post will explore the composition, physical and mechanical properties, uses, heat treatment, corrosion resistance, and benefits of using AWS Class EB2 SAW & Flux.
What is AWS Class EB2 SAW & Flux?
AWS Class EB2 SAW & Flux welding alloy are a type of electrode that is used primarily with shielded metal arc welding (SMAW). These electrodes are composed of an alloy core covered in an organic flux. The purpose of the flux coating is to create a stable arc and protect it from contaminants such as dirt, rust, moisture, and other elements in the surrounding environment. The flux also helps keep the weld area clean by removing oxides while creating a stronger bond between metals. In addition to providing superior welds, these electrodes typically allow for higher speed and deposition rates compared to other welding processes. They are ideal for many fabrication projects requiring excellent quality control over the type of weld being produced.
EB2 SAW & Flux Welding Wire Composition
The AWS Class EB2 SAW & Flux welding electrode comprises a high-strength, low-alloy steel metal core wrapped in a flux coating. The metal core contains alloying elements such as chromium, molybdenum, and nickel, which enhances its mechanical properties and corrosion resistance. The flux coating helps to protect the weld from atmospheric elements and contaminants by creating a gas shield around the weld pool during the welding process.
C | Mn | Si | Cr | Mo | S | P | Cu |
0.07- 0.15 |
0.45- 1.00 | 0.05- 0.30 | 1.00- 1.75 |
0.45- 0.65 | 0.025 max |
0.025 max |
0.35 max |
EB2 SAW & Flux Coated Wire Physical Properties
The AWS Class EB2 SAW & Flux welding wire has a higher tensile strength and yield strength than most standard welding electrodes, making it an ideal choice for high-stress applications. It also has a lower coefficient of thermal expansion, allowing for better dimensional stability and control during the welding process. Moreover, due to its low hydrogen content, the electrode has a lower risk of hydrogen-induced cracking.
EB2 SAW & Flux Welding Wire Mechanical Properties
AWS Class EB2 SAW & Flux electrode offers excellent toughness, impact resistance, and fatigue strength. It also has a higher resistance to creep, which is a critical factor in applications that involve high temperatures and prolonged exposure.
As per typical heat with suitable flux | Tensile Strength MPa (ksi) | Yield Strength MPa (ksi) |
Elongation |
Typical Results – As welded | 580 (85) | 490 (71) |
22 |
EB2 SAW & Flux Coated Wire Trade Names
Class | UNS | Oxford Alloys |
EB2 | K11172 | Alloy EB2 |
EB2 SAW & Flux Welding Wire Parameters
Diameter |
Process |
Volt |
Amps |
SAW Flux | |
in |
(mm) |
||||
3/32 |
2.4 |
SAW |
28-32 |
250-400 |
Suitable Flux |
1/8 |
3.2 |
SAW |
30-34 |
400-600 |
Suitable Flux |
EB2 SAW & Flux Coated Wire Uses
The AWS Class EB2 SAW & Flux filler wire process is commonly used in various industries such as shipbuilding, automotive, and construction. It is ideal for welding high-strength steel, heavy sections, and critical joints. It is also suitable for welding dissimilar metals, including carbon steel to stainless steel.
EB2 SAW & Flux Welding Wire Heat Treatment
Heat treatment of AWS Class EB2 SAW & Flux filler metal is crucial as it helps to improve the weld’s mechanical properties. This process involves heating the weld to a specific temperature and holding it for a specific time before it cools naturally. Heat treatment helps to reduce residual stresses, improve toughness, and decrease the risk of hydrogen-induced cracking.
EB2 SAW & Flux Coated Wire Corrosion Resistant
AWS Class EB2 SAW & Flux welding electrode is highly resistant to corrosion, even in harsh environments such as seawater exposure. This is due to the alloying elements in the metal core providing excellent corrosion resistance. Additionally, the flux coating helps to protect the weld from corrosion by acting as a barrier to environmental factors such as water and air.
Conclusion
AWS Class EB2 SAW & Flux welding electrode is an excellent choice for high-strength applications requiring superior welding performance. It offers exceptional mechanical properties and corrosion resistance and is suitable for welding dissimilar metals. The electrode’s heat treatment process also improves its mechanical properties, making it an ideal choice for various industrial applications.
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