AWS Class E9018-B3 Coated Electrodes Manufacturer and Supplier in Tunisia, Tunis
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Hajji Welding Supplies, located in Tunis, Tunisia, is a trusted name in the manufacturing and supply of top-notch welding consumables designed for high-pressure and high-temperature applications. They offer AWS Class E9018-B3 coated electrodes that are crafted to deliver outstanding mechanical strength, low hydrogen weld deposits, and dependable performance even in elevated temperatures. Produced under rigorous quality control and adhering to international standards, these electrodes are perfect for critical fabrication and maintenance tasks. Hajji Welding Supplies caters to the power generation, petrochemical, refinery, and heavy engineering sectors with reliable products and expert technical support.
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AWS Class E9018-B3 Coated Electrodes Specification
| 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 |
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What is AWS Class E9018-B3 Coated Electrodes?
AWS E9018-B3 electrodes are low-hydrogen consumables made from chromium-molybdenum alloy steel, typically featuring around 2.25% chromium and 1% molybdenum. This specific alloy composition ensures high tensile strength, impressive creep resistance, and remarkable toughness at elevated temperatures. The weld metal produced boasts a minimum tensile strength of about 620 MPa, maintaining stable mechanical properties even after post-weld heat treatment. These electrodes are known for their smooth arc characteristics, low hydrogen levels, and strong resistance to hydrogen-induced cracking.
AWS Class E9018-B3 Coated Electrodes Chemical Composition
Weld Metal | 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 |
Mechanical Properties of AWS Class E9018-B3 Coated Electrodes
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% |
AWS Class E9018-B3 Coated Electrodes Equivalent
Diameter | Type of Power |
Amperage | Deposition Rate (lbs/hr) | Amperage Range |
3/32” | DCEP or AC | 100 | 2.38 | 70-110 |
1/8” | DCEP or AC | 135 | 2.92 | 90-160 |
5/32” | DCEP or AC | 170 | 4.08 | 130-220 |
3/16” | DCEP or AC | 250 | 5.62 | 200-300 |
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Leading Industrial Supplier of AWS Class E9018-B3 Coated Electrodes For Welding Solutions in Tunis
At Hajji Welding Supplies, we take pride in being one of Tunis’s trusted suppliers of high-quality welding consumables. Our expertise lies in AWS Class E9015-B9 Coated Electrodes, engineered for precision, durability, and resistance to corrosion. With a strong commitment to quality and customer satisfaction, we provide welding solutions that support industries across construction, energy, shipbuilding, and manufacturing.
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Types of AWS Class E9018-B3 Coated Electrodes
AWS Class E9018-B3 Coated Electrodes Uses
AWS Class E9018-B3 coated electrodes are ideal for welding Cr-Mo alloy steels like ASTM P22 and similar materials. Common applications include boilers, pressure vessels, steam pipelines, heat exchangers, reactors, and refinery equipment that operate under high temperature and pressure. They find extensive use in power plants, petrochemical facilities, oil refineries, and the fertilizer industry. Thanks to their excellent creep strength and resistance to hydrogen cracking, these electrodes are perfect for critical fabrication, repair, and maintenance welding tasks.
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