Conra Welding Supplies, located in Houston, USA, has built a solid reputation as a reliable manufacturer and supplier of top-notch welding consumables, including the AWS Class E9018-B3 coated electrodes. Renowned for their quality, dependability, and technical know-how, Conra offers welding solutions that are specifically designed for critical industrial applications. The E9018-B3 electrodes are expertly crafted for welding chromium-molybdenum steels, which are essential in high-temperature and high-pressure settings. With a keen emphasis on durability and adherence to international standards, Conra ensures that their products deliver strength, low hydrogen content, and exceptional weld integrity, making them perfect for even the toughest welding tasks.
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| Classification | AWS A5.5, E9018-B3 |
| Form | Welding Electrode, Welding Rods |
| Type Of Current | Direct Current Electrode Positive (DCEP) |
| Diameters | 3/32”, 1/8”, 5/32”, 3/16” or 2.5mm, Ø 3.2mm, Ø 4.0mm, Ø 5.0mm |
| Size | 2.0mm ∞ 5.0mm |
| AC/DC+ | 50-80, 80-110, 100-135, 140-180 |
| Welding Positions | All positions 5/32” & 3/16” recommended for use in flat & horizontal positions only (F, V, OH, H) |
| AWS E9018-B3 Coated Electrodes Application & uses |
|
The AWS Class E9018-B3 coated electrodes are formulated with about 2.25% chromium and 1% molybdenum, making them ideal for applications involving creep-resistant steel. These electrodes create low-hydrogen weld deposits that boast impressive tensile strength, typically around 90,000 psi, along with good impact toughness. They are designed to resist hydrogen-induced cracking and maintain stability under thermal stress. Thanks to their carefully controlled chemical composition and microstructure, these electrodes ensure reliable welds in high-temperature service conditions, such as those found in pressure vessels and piping systems.
|
Weld Metal Analysis (%) |
AWS Spec | |
|
Carbon (C) |
0.08 | 0.05-0.12 |
|
Chromium (Cr) |
2.39 | 2.00-2.50 |
|
Manganese (Mn) |
0.68 |
0.90 max |
|
Molybdenum (Mo) |
1.05 | 0.90-1.20 |
|
Phosphorous (P) |
0.02 |
0.03 max |
|
Silicon (Si) |
0.55 |
0.80 max |
|
Sulfur (S) |
0.01 |
0.03 max |
| Class | UNS | Oxford Alloys | BOHLER |
| E9018-B3 | W53018 | Alloy 9018-B3 | BOHLER FOX P 22 |
| SR 1 Hr. @ 1275°F | AWS Spec (min) | |
Ultimate Tensile Strength | 109,000 psi (750 MPa) | 90,000 psi |
Yield Strength | 93,000 psi (640 MPa) | 77,000 psi |
Percent Elongation in 2” | 22% | 17% |
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Conrad Welding Supplies is a leading manufacturer and supplier of premium AWS Class E9018-B3 Coated Electrodes in Houston , USA. Specializing in advanced welding solutions. We offer a comprehensive range of products. Including coated electrodes, welding electrodes, flux core, MIG & TIG welding wires, SAW flux and filler wires. Renowned for dependable delivery and exceptional customer service. We are dedicated to providing high-quality welding materials that deliver durability and performance for diverse industrial applications. Our commitment to excellence has made us a trusted partner for all your welding requirements.
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AWS Class E9018-B3 electrodes are commonly utilized for welding 2.25% Cr – 1% Mo steels across various industries, including power generation, petrochemical, and refining. Typical applications encompass boilers, pressure vessels, heat exchangers, and high-pressure piping systems that function at elevated temperatures and endure cyclic stress. These electrodes are particularly well-suited for environments where resistance to creep, oxidation, and thermal fatigue is crucial. Their low hydrogen content and robust mechanical properties make them perfect for critical structural welds, ensuring long-lasting performance and safety in high-temperature and high-stress situations.
We provide high-quality electrodes, filler wire, MIG and TIG welding wires to a wide range of industries, including oil and gas, food, marine, petrochemical, power generation, and aerospace.
Conrad Welding Supplies is a leading manufacturer, supplier and exporter of high-quality Coated Electrodes, Flux Core, MIG & TIG wires, SAW & Flux, Welding Wires, and Filler Wires, catering to various industries in Houston , USA
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