Engineered for high deposition rates, low spatter, and premium bead aesthetics. Explore our core OEM product lines manufactured under rigorous ISO9001 protocols.
As heavy industry shifts toward automated manufacturing and tougher corrosion resistance benchmarks, selecting the right welding consumables has become a critical engineering decision. Wulian Yuxin Hardware Equipment Co., Ltd., established in Wulian, Rizhao City, Shandong Province, has spent nearly two decades evolving from a regional specialist into a global tier-one OEM partner.
Operating from our advanced 15,000-square-meter production facility, we deliver complete technical sovereignty over our manufacturing chain. Our specialized production of AWS A5.22 E308LT1-1/4 Flux-Cored Wires combines ultra-low carbon chemistry with state-of-the-art micro-alloying to prevent intergranular corrosion and yield exceptional weldability. Unlike generic suppliers, we maintain internal tolerances 30% stricter than current AWS/ISO standards, guaranteeing that every spool operates consistently from the first turn to the last.
In-depth metallurgical engineering insights targeting the evolution of stainless steel joining processes.
Our ongoing development focus utilizes advanced rutile (TiO2) slag formulations that maximize puddle visibility, allow out-of-position welding capabilities, and generate a self-peeling slag structure. This cuts down-time and eliminates post-weld grinding cycles.
To support high-temperature cryogenic LNG environments, our technical roadmap incorporates refined scavenging techniques to drastically reduce sulfur (S ≤ 0.01%) and phosphorus (P ≤ 0.02%) impurities. This prevents micro-fissuring and improves toughness at -196°C.
With automated fabrication becoming the industry standard, we calibrate wire roundness tolerances and copper/alloy surface slip properties to guarantee constant feeding speeds in continuous robotic MIG/FCAW cells without birdnesting or arc instability.
How Wulian Yuxin supports global infrastructure, marine fabrication, chemical processing, and tank construction.
Welding grade 304 and 304L stainless steels requires precise thermal control to avoid the sensitization window (450°C to 850°C). Our ER308L and 308L Flux-Cored Wires are engineered specifically to overcome these microstructural challenges:
| AWS Class | Shielding Gas | Wire Dia. (mm) | Current (A) | Voltage (V) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|---|---|---|
| E308LT1-1 | 100% CO₂ | 1.2 | 130 - 220 | 24 - 32 | ≥ 520 | ≥ 35% |
| E308LT1-4 | 75-80% Ar + Bal CO₂ | 1.2 | 140 - 240 | 23 - 30 | ≥ 550 | ≥ 36% |
| E316LT1-1 | 100% CO₂ | 1.2 | 130 - 220 | 24 - 32 | ≥ 520 | ≥ 30% |
Combining physical size with digitized workflows to offer flexible, cost-optimized OEM supply contracts.
Wulian Yuxin’s facility leverages a specialized combination of wire-drawing, baking, dynamic winding, and automated chemical composition checking. Our manufacturing plant operates with advanced machinery that monitors wire diameter variations in real-time, instantly adjusting wire draw tension to ensure strict roundness tolerances.
We have expanded our operations to support robust international distribution paths. This guarantees stable production schedules and quick lead times even during global shipping disruptions. By stocking raw steel coils from China's top alloy mills, we are shielded from localized steel price volatility.
How we tailor packaging, private labeling, chemical formulations, and logistics for international distributors.
We offer comprehensive OEM branding options, from custom-designed plastic/metal spools to moisture-barrier foil bags and master shipping cartons branded with your corporate identity.
Need targeted chemical profiles? We can adjust the Ferrite Number (FN) range or carbon content to meet client project specifications or local welding practices.
Choose from 1kg spool packs for light fabrication, 5kg/12.5kg spools for standard structural work, or bulk drums (250kg) for automated manufacturing and robotic lines.
All shipments arrive with certified Mill Test Certificates (MTCs) to EN 10204 3.1, establishing clear traceability of raw material heats and chemical properties.
Delivering reliable products to project sites in Germany, Poland, Vietnam, Indonesia, Brazil, and over 20 other countries.
Our welding wires are regularly used in field-proven application cases across heavy machinery, pressure vessels, and piping networks:
Used in automotive structural welding and carbon steel assemblies.
Chosen for high deposition rates in shipbuilding and heavy structures.
Corrosion-resistant overlays in chemical plants and refining towers.
High-precision root passes for oil & gas transport pipes.
Delivering high mechanical toughness for structural maintenance jobs.
Metallurgical answers to help procurement managers and welding engineers optimize their production lines.
Flux-cored wires feature a hollow metal sheath packed with flux agents, offering higher deposition rates, better out-of-position weldability, and a self-peeling slag layer. Solid wire (GMAW) requires tighter weld joint cleanups, higher gas flow rates, and is more prone to wind disruptions during outdoor fabrication.
The "L" designation stands for low carbon (≤ 0.04%). Keeping carbon levels low minimizes the formation of chromium carbides along grain boundaries during welding. This protects the HAZ (Heat Affected Zone) from intergranular corrosion under high temperatures.
We use specific chemical formulas during the drawing process to balance ferrite stabilizer elements (Cr, Mo, Si) with austenite stabilizer elements (Ni, C, Mn, N). We aim for a Ferrite Number between 3 and 10 to protect against hot cracking without sacrificing cryogenic impact performance.
E308LT1-1 operates with 100% CO2 shielding gas, which is cost-efficient and provides deep penetration. E308LT1-4 utilizes an Argon/CO2 mix (typically 75% Ar / 25% CO2 or 80% Ar / 20% CO2) to reduce spatter levels, lower fume production, and improve slag detachability.
Yes. We offer custom OEM options including plastic (D200, D300) and metal basket spools. We provide custom-printed labels, cartons, and moisture-barrier packaging to fit your regional market specifications.
Our manufacturing facility operates under a certified ISO 9001:2015 Quality Management System. Our key product classes carry CE marks and undergo rigorous internal batch inspections to verify conformity with EN 10204 3.1 standards.
Select from our manufacturing categories for structural steel, stainless steel, and alloy fabrications.
Yuxin
