Engineered to meet the absolute highest thresholds of international welding standards including ISO 9001 and CE certifications.
Pioneering Excellence in Welding Solutions Since 2004
Established in Wulian, Rizhao City, Shandong Province, Wulian Yuxin Hardware Equipment Co., Ltd. has grown from a locally excellent manufacturer to a globally recognized producer of premium welding consumables. With our own 15,000-square-meter production facility and advanced manufacturing equipment, we proudly maintain complete control over our production processes, ensuring consistent quality across our entire product range.
Our commitment to quality, research and development, and customer satisfaction has earned us long-term partnerships with dozens of Fortune 500 suppliers and industrial distributors. By operating a China Factory 4.0 infrastructure, we deliver unmatched production reliability, cost efficiencies, and supply chain continuity to projects in more than 20 countries.
Underpinning our manufacturing with verified metallurgy, strict tolerance boundaries, and reliable processing equipment.
Every batch is tested via emission spectrometers and mechanical testing rigs to ensure chemistry meets international AWS A5.9 limits.
Operating adjacent to Qingdao Port allows us to facilitate fast, cost-effective global ocean freight forwarding schedules.
Bypassing standard middleman fees ensures maximum cost-savings on high-purity ER316/ER316L wire configurations.
For applications where corrosion resistance, yield strength, and structural integrity are non-negotiable, 316 and 316L stainless steel filler wires stand at the apex of industry selection. As a premier Chinese manufacturer, Wulian Yuxin optimizes the chemistry of ER316L (low carbon) and ER316 wires to guarantee reliable welding performance under critical conditions.
The addition of Molybdenum (typically 2.0% to 3.0%) distinguishes 316 series wire from standard 308 grades, granting resistance to localized chloride pitting and crevice corrosion. Carbon control is similarly crucial: by keeping carbon content strictly below 0.030% in ER316L, we prevent chromium carbide precipitation at the grain boundaries during cooling, eliminating susceptibility to intergranular corrosion in the heat-affected zone (HAZ).
| Grade Spec | C (%) | Mn (%) | Si (%) | Cr (%) | Ni (%) | Mo (%) | P & S (%) |
|---|---|---|---|---|---|---|---|
| ER316 | ≤ 0.080 | 1.0 - 2.5 | 0.30 - 0.65 | 18.0 - 20.0 | 11.0 - 14.0 | 2.00 - 3.00 | ≤ 0.030 |
| ER316L | ≤ 0.030 | 1.0 - 2.5 | 0.30 - 0.65 | 18.0 - 20.0 | 11.0 - 14.0 | 2.00 - 3.00 | ≤ 0.020 |
| AWS A5.9 standard | ≤ 0.030 | 1.0 - 2.5 | 0.30 - 0.65 | 18.0 - 20.0 | 11.0 - 14.0 | 2.00 - 3.00 | ≤ 0.030 |
To further secure weld microstructures, Wulian Yuxin manages the Ferrite Number (FN) of our filler metal within the optimal 4 to 10 range. This controlled delta ferrite level prevents hot cracking during solidification, while preserving excellent impact toughness at cryogenic temperatures, ensuring resilience for challenging piping, vessel, and maritime projects.
At Wulian Yuxin, our facility functions as a contemporary China Factory 4.0 industrial complex. Through integration of continuous-operation wire drawing machines, online electromagnetic testing systems, and precision layer-winding equipment, we ensure consistent mechanical performance batch-to-batch.
Operating from Shandong Province, we maintain solid direct-access agreements with premium domestic steel refineries, shielding our production flow from material volatility. This control allows us to provide industrial buyers with reliable supply timelines, secure bulk pricing structures, and customizable processing solutions for high-performance welding wires.
Every spool, basket, or drum of ER316L wire goes through three testing checkpoints before shipping: raw coil chemical testing, intermediate diameter control, and final layer winding consistency audits. This meticulous process ensures smooth feeding in automated robotic welding booths and manual stations alike.
How Wulian Yuxin's 316 stainless steel filler wire serves critical global infrastructures and high-corrosion industrial settings.
Resistant to high salinity, splash-zone chloride corrosion, and moisture, making our ER316L wire standard for offshore oil rigs, shipyards, and coastal piping systems.
Essential for vessels, heat exchangers, and tanks managing sulfuric, phosphoric, and organic acids, where corrosion risks could compromise plant safety.
Guarantees smooth, pit-free weld surfaces to prevent bacterial buildup in food production. Maintains high toughness at cryogenic liquid nitrogen temperatures.
Inside our 15,000-square-meter facility in Shandong Province, equipped with modern drawing and testing machinery.
As industrial requirements lean toward automation and green production, Wulian Yuxin is proactively adapting our technical roadmap. We are investing in and engineering new solutions across several main domains:
With an annual capacity of 3,000 tons, Wulian Yuxin offers flexible ordering options, tailored OEM packaging, and custom chemistry configurations to match regional project standards.
Located in Shandong, our plant is situated close to Qingdao Port. This proximity simplifies shipping routes and reduces transit times for global ports in Europe, Southeast Asia, South America, and Africa.
All bulk orders include certified Material Test Reports (MTRs) to verify chemical compositions and mechanical properties, ensuring complete traceability for high-spec engineering projects.
Answers to common technical and logisitics questions for global buyers sourcing 316 filler wires.
Browse our complete list of high-grade filler wires and electrodes. Contact our technical team for custom configurations.
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