If you’re in the welding industry, you’ve probably encountered AWS Class ER80S-B2. This is a popular filler metal that is used for welding low-alloy steels. It is incredibly malleable, and it has excellent resistance to cracking, making it a top choice for many welders.
This blog post will explore AWS Class ER80S-B2 and its properties. We’ll discuss its composition, physical and mechanical properties, as well as its uses and heat treatment. So let’s dive in and learn everything there is to know about this popular filler metal.
What is AWS Class ER80S-B2?
AWS Class ER80S-B2 Welding Electrodes are abundant nickel-chromium-based electrodes that function in AC and DC. This way, they can accommodate various welding applications, from general fabrication to high-strength structural welds. These electrodes have excellent cracking and porosity tolerance, enabling high-quality welds with a low work hardening rate and good ductility even in conditioned parts. Despite being extremely durable, these electrodes provide superior arc stability, allowing precise control over heat input for proper bead profile formation. Additionally, AWS Class ER80S-B2 Welding Electrodes have extremely consistent deposit chemistry, making them ideal for welding on galvanized or coated steels and dissimilar joints such as copper alloys and cast iron components.
ER80S-B2 Welding Wire Composition
AWS Class ER80S-B2 filler metal is a low-alloy wire that contains chromium and molybdenum as its primary alloying elements. It also contains small amounts of silicon, manganese, and carbon. The silicon content improves the wire’s flow, while the manganese contributes to the wire’s strength.
| C |
Mn |
Si | Cr | Mo | P | S |
Cu |
| .09 |
.55 |
.48 | 1.35 | .55 | .012 | .006 |
.15 |
ER80S-B2 Welding Wire Physical Properties
The AWS Class ER80S-B2 wire has a diameter range of 0.023 to 0.045 inches and comes in a 33 lb spool. The wire has a beautiful metallic finish, and its colour is typically silver or grey. It has a specific gravity of 7.85, which is relatively dense.
ER80S-B2 Coated Wire Mechanical Properties
AWS Class ER80S-B2 has excellent mechanical properties. The tensile strength of the wire is approximately 700 MPa, which is higher than most standard low-alloy filler metals. The wire also has high yield strength, around 620 MPa, and high elongation of about 23%. These properties indicate that AWS Class ER80S-B2 is a robust, malleable wire that can withstand stress without breaking.
|
TENSILE STRENGTH 590 MPA |
85,000 PSI |
|
YIELD STRENGTH 490 MPA |
71,500 PSI |
|
ELONGATION |
21% |
|
IMPACT STRENGTH @ 32°F |
60 ft. lbs. |
ER80S-B2 MIG & TIG Welding Wire Trade Names
| Class | UNS | Oxford Alloys | BOHLER |
| ER80S-B2 | K20900 | Alloy 80S-B2 | UNION ER80S-B2 |
ER80S-B2 MIG & TIG Filler Metal Parameters
| PROCESS | DIA. OF WIRE | AMPERAGE | VOLTAGE | GAS/FLUX |
|
|
1/16” | 50-120 | 7-13 | Ar |
| GTAW (TIG) | 3/32” | 120-200 | 10-16 | Ar |
|
|
1/8” | 150-220 | 12-18 | Ar |
|
GMAW (MIG) SHORT ARC |
.035” .045” 1/16” |
90-160 120-200 – |
14-20 16-20 – |
CO2 CO2 or 75 Ar / 25 CO2 CO2 or 75 Ar / 25 CO2 |
| GMAW (MIG) | .035” | 180-230 | 25-28 | 98 Ar / 2 O2 |
| SPRAY | .045” | 250-350 | 25-30 | 75 Ar / 25 CO2 |
| TRANSFER | 1/16” | 280-400 | 26-36 | 75 Ar / 25 CO2 |
| SUBMERGED | 3/32” | 250-400 | 28-32 | UV420TTR |
| ARC | 1/8” | 400-600 | 30-34 | UV420TTR |
ER80S-B2 Coated Wire Uses
AWS Class ER80S-B2 filler wire is widely used in the welding industry. It is a fill metal that can be used to weld low-alloy steels such as:
- ASTM A335 P11, P12, P22, and P91
- ASTM A213 T11, T12, T22, and T91
- ASTM A217 C12A and WC6
- ASTM A335 P5 and P9
The high strength and flexibility of AWS Class ER80S-B2 make it ideal for welding pressure vessels, pipes, and boilers that can operate under high temperatures and pressures.
ER80S-B2 Welding Wire Heat Treatment
AWS Class ER80S-B2 filler metal can undergo heat treatment to enhance its properties further. The wire can be heat-treated at 620-660°C for an hour and then air-cooled to improve its strength and flexibility. The heat treatment process can also relieve residual stress in the weld, minimizing the risk of cracking.
ER80S-B2 Coated Wire Corrosion Resistant
AWS Class ER80S-B2 electrode is corrosion-resistant, making it ideal for welding applications where the material may be exposed to harsh environments. Chromium in the alloy provides excellent resistance to corrosion, and molybdenum improves the wire’s ability to withstand corrosion in a range of acidic environments.
Conclusion
AWS Class ER80S-B2 is an excellent filler metal used widely in the welding industry. Its strength, flexibility, and corrosion-resistant properties make it ideal for welding low-alloy steels in harsh environments. We hope this blog post has provided valuable information about AWS Class ER80S-B2, helping you understand its properties and applications. Please contact us if you have any questions or want to learn more about AWS Class ER80S-B2.
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!
