ER-309 Stainless Steel Welding Wire
I. Product Overview
In the industrial welding field, the quality of welding wire is a core factor determining the strength, corrosion resistance, and service life of welded joints. The AWS ER-309 Stainless Steel Welding Wire (also known as SS Welding Rod E309) launched by the Ocean Welding brand, originating from Zhejiang Province, China, has become the preferred solution for complex welding needs in industries such as chemical engineering and high-temperature equipment manufacturing. It relies on strict composition control, excellent welding performance, and wide scenario adaptability, providing stable and reliable material support for the welding operations of key equipment.
II. Basic Product Information
| Item | Details |
|---|---|
| Product Model | AWS ER-309 |
| Brand Name | Ocean Welding |
| Place of Origin | Zhejiang Province, China |
| Core Material | High-quality stainless steel |
| Diameter Specifications | 0.6mm, 0.8mm, 1.0mm, 1.2mm...4.0mm (multiple specifications to meet different welding needs) |
| Regular Weight | 5kg/roll |
| Melting Point Standard | Compliant with international general standards |
| Flux Content | Consistent with international standards to ensure welding stability |
III. Core Performance and Advantages
(I) Scientific Chemical Composition of Deposited Metal
The welding quality is ensured from the source by precisely controlling the proportion of each element. The specific components and their functions are as follows:
| Element | Content Range (%) | Core Function |
|---|---|---|
| Carbon (C) | ≤0.12 | Reduces the risk of intergranular corrosion in welded joints |
| Chromium (Cr) | 23.0-25.0 | Enhances the corrosion resistance and high-temperature strength of deposited metal |
| Nickel (Ni) | 12.0-14.0 | Collaborates with chromium to optimize corrosion resistance and improve weld toughness |
| Molybdenum (Mo) | ≤0.75 | Improves the welding process performance of the welding wire and enhances weld strength |
| Manganese (Mn) | 1.0-2.5 | Enhances weld toughness and optimizes welding forming effect |
| Silicon (Si) | 0.30-0.65 | Improves the fluidity of the welding wire and ensures welding stability |
| Phosphorus (P) | ≤0.03 | Reduces the risk of weld cracks |
| Sulfur (S) | ≤0.03 | Reduces weld brittleness and improves joint reliability |
(II) Excellent Welding Performance
Stable Arc: The arc remains stable during the welding process with minimal spatter, reducing the workload of subsequent cleaning, improving work efficiency, and avoiding weld surface defects caused by spatter.
Strong Working Condition Adaptability: Welded joints can withstand harsh environments such as high temperatures and corrosion for a long time while maintaining structural stability, making them suitable for complex industrial scenarios like chemical engineering and high-temperature equipment.
High Process Compatibility: It is recommended to use Ar + 0.5-2% O₂ mixed gas for protective welding, which effectively isolates the oxidation and nitridation of the molten pool by air, ensuring the appearance smoothness and internal quality of the weld.
IV. Application Scenarios
It is specially designed for dissimilar metal welding and also suitable for the welding of specific stainless steel materials. The core applications are as follows:
Dissimilar Metal Butt Welding: Such as the welding of low-carbon steel and Cr-Mo steel. It can alleviate the stress difference between the two metals, reduce welding deformation, and form high-strength and high-sealing joints.
Stainless Steel Welding: Suitable for stainless steel materials such as SUS309S and SCS17. Typical application scenarios include:
Corrosion-resistant components of chemical equipment (e.g., reaction kettles, conveying pipelines)
High-temperature furnace structural parts (e.g., heating furnace linings, furnace frames)
Industrial corrosion-resistant pipelines and containers
V. Packaging and Delivery
| Item | Specific Description |
|---|---|
| Packaging Specifications | Two options available: - 5kg/roll: Suitable for small-scale operations and narrow-space operations - 15kg/roll: Suitable for large-scale continuous production, reducing the frequency of roll change |
| Delivery Cycle | 25 days (a stable cycle facilitates enterprises to plan production and avoid delays in raw material supply) |
VI. Quality Assurance
System Certification: The enterprise has passed the ISO 9001 quality management system certification. The entire process from raw material procurement, production and processing to finished product inspection complies with international advanced standards.
Quality Consistency: Each roll of welding wire undergoes strict testing to ensure the uniformity of diameter accuracy, chemical composition, and welding performance, eliminating the impact of batch differences on welding quality.
VII. Contact and Consultation
For more product details, customized specifications, or to obtain quotations, you can contact us through the following methods:
Official Website: www.hzdayang.com
Customer Service Consultation: Contact the brand customer service to get exclusive solutions
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