Core Features "E10018-D2" AWS Classification: The AWS designation breaks down to key performance traits: E: Electrode (stick welding type). 100: Minimum tensile strength of 100 ksi (690 MPa) for weld deposits, suitable for high-load structural steel. 18: All-position welding capability (flat, horizontal, vertical-up, overhead) with low-hydrogen basic flux. D2: Extra-low hydrogen content (≤5 mL/100g) and high toughness, critical for preventing post-weld cracking in thick or high-carbon steels. Low-Alloy Core for Strength & Toughness: The electrode core is a low-alloy steel (with Mn, Si, and small additions of Cr/Ni) that matches the high-tensile properties of base materials like A572 Grade 65 or A36 thick plates. Weld deposits maintain high strength (690+ MPa) and excellent low-temperature toughness (≥47 J at -40°C V-notch), making them resistant to brittle failure under load or temperature swings. Basic Flux Coating for Low Hydrogen: The low-hydrogen basic (lime-based) flux coating minimizes hydrogen diffusion into the weld, a primary cause of cold cracking in thick steel sections or high-carbon alloys. It also produces a smooth, slag-free weld bead with good fusion to the base metal, reducing the need for post-weld grinding. Thick Section Welding Suitability: Engineered for multi-pass welding of thick steel (≥12mm) in structural applications. The low-hydrogen design eliminates the need for excessive preheating (typically 150–250°C for thick sections), while the all-position capability accommodates complex joint geometries in bridges, pressure vessels, or heavy machinery. Corrosion Resistance for Outdoor Use: The low-alloy core includes trace elements (e.g., Cu) that enhance atmospheric corrosion resistance, making welds suitable for outdoor structural steel (e.g., bridges, offshore platforms) exposed to rain, humidity, or mild industrial environments. Typical Applications METRODE Welding Rod E10018-D2 is engineered for high-tensile, low-hydrogen welding of thick or high-strength steel—ideal for scenarios needing crack-resistant joints, 690+ MPa strength, and all-position usability. Key use cases include: Structural Steel Fabrication: Welding thick sections of high-tensile steel (e.g., A572 Grade 65) in bridges, building frames, or crane booms. The 100 ksi strength matches the base metal, while low hydrogen prevents cracking in load-bearing joints—complying with AWS D1.1 (structural welding code). Heavy Machinery Manufacturing: Joining components of excavators, bulldozers, or industrial presses (thick steel housings, axle brackets). The all-position capability suits complex machinery geometries, and high toughness resists impact loads during operation—complying with ISO 18278 standards. Pressure Vessel Repair: Repairing thick-walled pressure vessels (e.g., storage tanks for gases/liquids) made of low-alloy steel. The extra-low hydrogen content (≤5 mL/100g) meets pressure vessel safety requirements, while the basic flux ensures full fusion to prevent leaks—complying with ASME BPVC Section IX. Offshore & Marine Steel Work: Welding structural components of offshore platforms or ship hulls (thick steel plates). The atmospheric corrosion resistance handles salt spray, and low-temperature toughness (-40°C) resists brittle failure in cold marine climates—complying with AWS D1.5 (bridge welding code, adapted for marine use).