Explore our selection of internationally certified industrial welding wires and electrodes engineered for extreme thermal and chemical resilience.
ER316L stainless steel filler wire is the cornerstone of high-integrity welding in environments subject to severe chemical aggression. Engineered with a low carbon content (maximum 0.03%), this austenitic alloy is specifically formulated to mitigate the risk of carbide precipitation at the grain boundaries during the thermal cycles of welding. By suppressing chromium carbide formation, the material prevents localized sensitization and subsequent intergranular corrosion, ensuring that the weldment retains its passive chromium oxide layer even at elevated temperatures.
Furthermore, the integration of 2.0% to 3.0% molybdenum establishes a robust defense against pitting and crevice corrosion in chloride-bearing matrices. This chemistry yields a high Pitting Resistance Equivalent Number (PREN), making ER316L the material of choice for industrial installations exposed to marine air, acids, and halogen gases. At Wulian Yuxin Hardware Equipment Co., Ltd., we combine metallurgical theory with sophisticated drawing methodologies to manufacture filler wires that meet the industry's most rigorous mechanical and chemical demands.
SEO Insight: Utilizing ER316L prevents chromium depletion zones near the heat-affected zone (HAZ), guaranteeing mechanical longevity in extreme corrosion environments.
Wulian Yuxin's operational capabilities in numbers reflect our commitment to continuous delivery and precision engineering.
Operating a modern 15,000-square-meter facility in Wulian, Rizhao City, Shandong Province, Wulian Yuxin Hardware Equipment Co., Ltd. incorporates the core practices of Industry 4.0. Our manufacturing lines run automated drawing, shaving, and layer-winding processes. By using multiple-stage tungsten carbide and diamond drawing dies, we control wire diameter variation down to ±0.01 mm, avoiding feedability issues in high-speed robotic MIG welding setups.
Additionally, our factory utilizes online eddy current testing systems to detect surface micro-cracks, seams, and metal slivers in real-time. Our automated spooling lines ensure precision-layer winding (PLW) with consistent tension. This minimizes wire crossover and feeding friction, reducing downtime in automated production cells and preventing contact tip wear for industrial customers.
By sourcing raw wire rod exclusively from top tier mills and utilizing smart ERP resource planning, we stabilize production lead times even during global supply chain fluctuations. This reliable production capability allows us to ship thousands of tons of high-performance ER316L, ER308L, and carbon steel wires to global distributors every year.
A breakdown of the metallurgical characteristics that make our ER316L filler wire perform exceptionally in critical welding scenarios.
We target a Ferrite Number of 3 to 8 (WRC-1992) in the weld metal. This balances the microstructural distribution to prevent hot cracking in the weld pool, while preserving mechanical toughness at sub-zero temperatures.
With C ≤ 0.030%, our wire minimizes chromium carbide crystallization at grain boundaries, reducing susceptibility to intergranular corrosion in the heat-affected zone (HAZ).
Our proprietary dry-and-wet chemical cleaning and mechanical polishing sequence removes drawing soap and oils. This ensures clean, arc-stable welds with low spatter and minimal porosity.
Wulian Yuxin ER316L conforms strictly to AWS A5.9 / ASME SFA-5.9 standards, offering consistent performance in critical applications.
| AWS Classification | C (%) | Cr (%) | Ni (%) | Mo (%) | Mn (%) | Si (%) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|---|---|---|---|---|
| ER316L (AWS A5.9) | ≤ 0.03 | 18.0 - 20.0 | 11.0 - 14.0 | 2.00 - 3.00 | 1.0 - 2.5 | 0.30 - 0.65 | ≥ 520 | ≥ 30 |
| ER308L (AWS A5.9) | ≤ 0.03 | 19.5 - 22.0 | 9.0 - 11.0 | ≤ 0.75 | 1.0 - 2.5 | 0.30 - 0.65 | ≥ 510 | ≥ 35 |
| ER70S-6 (AWS A5.18) | 0.06 - 0.15 | - | - | - | 1.4 - 1.85 | 0.80 - 1.15 | ≥ 480 | ≥ 22 |
ER316L filler wire is widely used across various heavy industries. In offshore marine engineering, the high salinity of seawater rapidly breaks down standard stainless steels. We supply ER316L consumables to shipyards and offshore gas extraction platforms to weld structural piping systems, desalination plants, and riser clamps. The addition of molybdenum prevents pitting in high-chloride marine environments.
In chemical and petrochemical plants, process vessels transport hot acids, high-pressure steam, and organic compounds. Welds completed with our ER316L wire maintain corrosion resistance and mechanical strength, helping prevent cracks and failures. For pharmaceutical and food processing plants, the smooth surface finish of the weld helps prevent bacterial buildup and ensures compatibility with strict CIP (Clean-in-Place) cleaning processes.
For cryogenic setups handling liquefied natural gas (LNG) at temperatures down to -196°C, weld zone embrittlement is a major challenge. Wulian Yuxin's strict control over the ferrite phase ensures our ER316L welds maintain high impact toughness even at extreme low temperatures.
A visual tour of Wulian Yuxin's advanced wire drawing, cleaning, and testing facilities in Rizhao City, Shandong Province.
For multinational procurement directors, sourcing welding consumables from China is about balancing cost efficiency with consistent quality. Wulian Yuxin helps manage these requirements through complete OEM/ODM customization services. We tailor every stage of the manufacturing cycle to meet our clients' specific engineering standards.
We offer customized wire chemistry configurations, adjusting trace elements like silicon for improved weld pool fluidity, or setting strict carbon levels for high-temperature service. Our spooling options include plastic spools (D200, D300), steel baskets (K300, BS300), and bulk drums (100kg to 250kg) to integrate smoothly with various wire feeder systems.
We provide full white-label packaging services, including customized moisture-resistant film wraps, thermal labeling, and palletization. Each batch is supplied with DIN EN 10204 3.1 Mill Test Certificates, showing direct trace data from raw metal smelting through to final inspection.
Importing welding wire into regulated industrial markets requires strict certification and compliance. Wulian Yuxin Hardware Equipment Co., Ltd. holds ISO 9001:2015 certifications for its quality management systems. Our stainless steel filler wires also carry the CE mark, verifying compliance with EU construction and pressure equipment directives.
Our location in Rizhao City, Shandong Province offers logistical advantages. Close to major shipping gateways like Qingdao Port, we arrange efficient container loading and ocean shipping, reducing transportation times to Europe, South America, and Southeast Asia. Our export team coordinates custom clearances, bill of ladings, and COO documentation to help simplify your shipping processes.
We offer specialized sales support with technical representatives ready to assist with weld procedure specifications (WPS) and metallurgy concerns. This technical assistance is available to welding engineers and procurement specialists globally.
Wulian Yuxin continuously invests in research and development to align with the evolution of the global welding industry.
We are developing wire surface technologies designed for robotic MIG welding operating above 350A, aimed at optimizing arc stability and minimizing micro-pore formation.
We are expanding the use of fully recyclable steel spool systems and biodegradable, dry-atmosphere plastic wrapping to reduce the environmental footprint of our packaging.
We plan to integrate online laser geometry sensors across all fine-drawing blocks, tracking wire roundness tolerances in real-time to support precision automated welding.
Technical answers to common questions about welding with ER316L stainless steel consumables.
Explore our specific project integrations and industrial application cases across the globe.
Browse our primary steel and alloy wire lines configured for high-performance welding setups.
Explore our complete export range, featuring carbon steel, low-alloy, and stainless steel options.
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