ER80S-B2 MIG WIRE
Dual process compatibility: Supports both CO₂ gas shielded welding and TIG welding
Outstanding high-temperature performance: Welded joints exhibit excellent creep resistance and oxidation resistance
High welding stability: Smooth wire feeding, minimal spatter, and aesthetically pleasing weld formation
High-Performance ER80S-B2 MIG Wire
The ER80S-B2 Welding Wire (also known as 80S-B2 welding wire) is a high-performance low alloy steel welding wire specifically engineered for welding 1.25% Chromium (Cr) and 0.5% Molybdenum (Mo) steels. This ER80S-B2 gas shielded welding wire is the industry standard for critical applications. This wire strictly conforms to the AWS A5.28 ER80S-B2 standard, making it the ideal choice for critical industries such as power generation, petrochemicals, and high-temperature piping, where exceptional creep resistance and thermal stability are paramount. Its unique alloy formulation ensures that the weld metal maintains superior mechanical properties and structural integrity during continuous high-temperature service up to 550°C (1022°F). We are committed to providing high-quality ER80S-B2 GMAW Filler Metal to meet your most demanding welding requirements.
Core Advantages and Features
Our 1.25Cr-0.5Mo Welding Wire (a leading CrMo heat-resistant steel welding wire) demonstrates unparalleled performance in critical applications, providing users with a reliable welding solution.
The chrome-molybdenum alloy composition in the wire imparts outstanding high-temperature strength and creep resistance to the weld metal. In high-temperature and high-pressure environments, the weld is able to resist permanent deformation, ensuring the long-term safe operation of the equipment. This makes it the preferred material for the fabrication and repair of high-pressure boilers, steam pipelines, and heat exchangers. As a specialized heat-resistant steel welding wire, it is the ideal boiler pipe welding wire and high-temperature welding wire for critical applications.
We strictly control the chemical composition of the welding wire, especially the content of Carbon, Manganese, Silicon, Chromium, and Molybdenum, to ensure the stability and consistency of the weld metal. This precise control is crucial for Post-Weld Heat Treatment (PWHT), guaranteeing that the weld achieves the expected mechanical properties and microstructure after heat treatment.
Excellent Welding Operability
As a professional ER80S-B2 low alloy welding wire, it exhibits a stable arc, extremely low spatter, and excellent weld pool control during Gas Metal Arc Welding (GMAW/MIG). Welders can easily achieve high-quality weld bead profiles, suitable for all welding positions, thereby improving production efficiency and reducing rework rates.
Technical Specifications
The following tables detail the typical chemical composition and mechanical properties of the ER80S-B2 MIG Wire. All data is based on AWS A5.28 standard testing.
Typical Chemical Composition (Wire Weight %)
|
Element |
C |
Mn |
Si |
Cr |
Mo |
P (Max) |
S (Max) |
|
Range |
0.07-0.12 |
0.40-0.70 |
0.40-0.70 |
1.20-1.50 |
0.40-0.65 |
0.025 |
0.025 |
Typical Mechanical Properties (Post-Weld Heat Treated - PWHT)
|
Property |
Unit |
Typical Value |
AWS A5.28 Requirement (Min) |
|
Tensile Strength (UTS) |
MPa (psi) |
660 (96,000) |
550 (80,000) |
|
Yield Strength (YS) |
MPa (psi) |
565 (82,000) |
470 (68,000) |
|
Elongation |
% |
20 |
19 |
Application Areas
ER80S-B2 MIG Wire is widely used in the manufacturing and repair of equipment that must withstand high pressure and high temperatures, primarily including:
- Power Industry: Used for the fabrication and repair of high-pressure boilers, steam pipelines, superheaters, and reheaters in thermal power plants.
- Petrochemical Industry: Suitable for high-temperature reactors, pressure vessels, and piping systems in refineries and chemical plants.
- Heat Exchangers: Used for manufacturing and repairing heat exchange equipment operating under high-temperature differentials.
- Dissimilar Steel Welding: Can be used to join 1¼Cr-½Mo steels with carbon steels or other low alloy steels to meet specific design requirements.
FAQ
Q: Is preheating required when welding with ER80S-B2?
A: Yes, to prevent hydrogen-induced cracking and ensure the metallurgical quality of the weld, preheating is generally recommended when welding with ER80S-B2. Depending on the base metal thickness and specific codes, the preheat and interpass temperature should typically be maintained at 150°C (300°F) or higher.
Q: What is the difference between ER80S-B2 and ER70S-6?
A: ER70S-6 is used for general carbon steel welding, whereas ER80S-B2 is a low alloy steel wire containing Chromium and Molybdenum. It is specifically designed for high-temperature and high-pressure applications, offering higher tensile strength and superior creep resistance. Their application scenarios and performance requirements are entirely different.
Q: Is there an ER80S-B2 TIG welding wire variant?
A: While this page focuses on the ER80S-B2 MIG Wire (GMAW), the ER80S-B2 TIG welding wire (GTAW) is also available under the same AWS classification. The TIG variant is typically used for root passes and applications requiring extremely precise weld control, sharing the same core chemical composition and mechanical properties as the MIG wire.
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