AWS Class ER80S-B6 is a popular filler metal used in MIG and TIG welding. With its excellent strength and corrosion resistance properties, this welding wire is widely used in various industries, from aerospace and automotive to construction and energy production. In this blog post, we’ll dive deeper into the specifics of AWS Class ER80S-B6, including its composition, physical and mechanical properties, uses, heat treatment, and corrosion resistance. So, whether you’re a professional welder or just getting started, keep reading to learn about this amazing welding wire.
What is AWS Class ER80S-B6 MIG & TIG?
AWS Class ER80S-B6 electrode is a low alloy MIG and TIG welding electrode commonly used for high tensile strength structural steel welding applications. The electrode has a higher chromium content than other types of electrodes, giving it superior wear resistance in demanding welding conditions. Its special characteristics include an increased fatigue life and improved machinability and feed ability. Its good arc stability also allows smoother transitions between passes than other low alloy electrodes. This makes it ideal for multi-pass welds on thicker steels where distortion control during the cooling process is critical.
ER80S-B6 MIG & TIG Coated Wire Composition
AWS Class ER80S-B6 wire is a low-alloy steel welding wire that consists of 1.25% Cr, 0.5% Mo, and other elements such as Mn, Si, P, and S. The addition of Cr and Mo enhances the strength and corrosion resistance of the wire, making it suitable for welding high-stress components in corrosive environments. The wire also contains trace amounts of other elements, such as Ni, Cu, and Ti, which improve the wire’s weldability and toughness.
|
C |
Mn | Si | Cr |
Mo |
S | P |
Ni |
Cu | OET |
|
0.10 |
0.40- 0.70 |
0.50 |
4.50- 6.00 |
0.45- 0.65 |
0.025 |
0.025 |
0.6 |
0.35 |
0.50 |
ER80S-B6 MIG & TIG Welding Wire Physical Properties
AWS Class ER80S-B6 welding wire has a diameter range of 0.8mm to 1.6mm and is available in spools or straight lengths. The wire is silver in colour and has a smooth surface finish. It has a 7.85 g/cm³ density and a melting range of 1450°C-1500°C. The wire’s excellent fluidity and penetration properties make it ideal for welding on thin, thick metal sections.
ER80S-B6 MIG & TIG Coated Wire Mechanical Properties
AWS Class ER80S-B6 welding alloy has excellent tensile strength and yield strength, ranging from 550 MPa to 690 MPa and 450 MPa to 550 MPa, respectively. The wire also has good elongation and impact toughness properties, making it suitable for welding on high-stress components exposed to impact and vibration. The wire’s mechanical properties can be improved further by performing a post-weld heat treatment.
|
As required by AWS 5.28 |
Tensile Strength MPa (ksi) |
Yield Strength MPa (ksi) |
Elongation % |
|
AWS |
550 (80) min | 470 (68) min | 17 min |
|
Typical Results(a) |
630 (91) | 480 (70) | 25 |
ER80S-B6 MIG & TIG Filler Wire & Rods Trade Names
| Class | UNS | Oxford Alloys | BOHLER |
| ER80S-B6 | S50280 | Alloy 80S-B6 | BOHLER CM 5-IG |
ER80S-B6 MIG & TIG Filler Metal Parameters
| Diameter |
Process |
Volt | Amps |
Shielding Gas |
|
| in | (mm) | ||||
| .035 | 0.9 | GMAW | 28-32 | 165-200 | Spray Transfer 98% Argon + 2% Oxygen or 75% Argon + 25% CO2 |
| .045 | 1.2 | GMAW | 30-34 | 180-220 | |
| 1/16 | 1.6 | GMAW | 30-34 | 230-260 | |
| .035 | 0.9 | GMAW | 22-25 | 100-140 | Short Circuiting Transfer 100% CO2 or 75% Argon + 25% CO2 |
| .045 | 1.2 | GMAW | 23-26 | 120-150 | |
| 1/16 | 1.6 | GMAW | 23-26 | 160-200 | |
| 1/16 | 1.6 | GTAW | 12-15 | 100-125 | 100% Argon |
| 3/32 | 2.4 | GTAW | 15-20 | 125-175 | 100% Argon |
| 1/8 | 3.2 | GTAW | 15-20 | 175-250 | 100% Argon |
ER80S-B6 MIG & TIG Coated Wire Uses
AWS Class ER80S-B6 filler wire is used in various industries, from aerospace and automotive to construction and energy production. The wire is suitable for welding on low-alloy, stainless, and high-strength steel. It is commonly used for welding on pressure vessels, boilers, pipelines, and storage tanks exposed to high-stress and corrosive environments.
ER80S-B6 MIG & TIG Welding Wire Heat Treatment
AWS Class ER80S-B6 filler metal can undergo a post-weld heat treatment to improve its mechanical properties and corrosion resistance. The heat treatment involves heating the welded component to a temperature range of 600°C-700°C for a few hours, followed by slow cooling in the furnace. This process helps to relieve welding stresses, refine the microstructure, and improve the wire’s toughness and ductility.
ER80S-B6 MIG & TIG Coated Wire Corrosion Resistance
AWS Class ER80S-B6 electrode has excellent corrosion resistance properties thanks to its high Cr and Mo content. The wire is corrosion-resistant from various corrosive agents such as acids, alkaline solutions, and seawater. Its corrosion resistance properties make it suitable for welding on components exposed to harsh environments.
Conclusion
AWS Class ER80S-B6 welding wire is an excellent filler metal that offers a range of benefits for various welding applications. Its composition, physical and mechanical properties, uses, heat treatment and corrosion resistance make it a top choice for welders producing high-quality welds on low-alloy, stainless, and high-strength steel. By understanding the specific properties and uses of AWS Class ER80S-B6 welding wire, welders can achieve reliable and durable welds that can withstand the harshest conditions.
Hey, I’m Krutik, a casual blogger expert in the metal industry. I am passionate about providing valuable information to my readers. With a background in engineering and construction, I like playing Cricket & watching Netflix shows in my free time. Thank you for visiting my blog, and I hope you find my information helpful!
