I. Product Overview
The AWS A5.4 E308-16 stainless steel welding rod (referred to as "308 welding rod" for short) is a high-quality welding material specifically developed by OCEAN WELDING for austenitic stainless steel. It is designed to address the corrosion-resistant welding needs in fields such as chemical engineering, food processing, medical care, and petroleum.
Adhering strictly to the international AWS A5.4 Standard, the weld metal of this product possesses both excellent acid and alkali corrosion resistance and high mechanical strength. It can perfectly match austenitic stainless steel base metals (e.g., 304 stainless steel), ensuring the stability and safety of equipment structures after welding. Thus, it has become a core choice for industrial-grade stainless steel welding.
II. Core Product Specifications
| Specification Category | Specific Details | Remarks |
|---|---|---|
| Executive Standard | AWS A5.4 | An internationally accepted standard for stainless steel welding rods, ensuring product compatibility |
| Product Model | E308-16 | "E" = Electrode, "308" = Suitable for austenitic stainless steel, "16" = Titanium calcium coating + all-position welding |
| Coating Type | Titanium calcium type | Ensures stable arc, easy slag removal, and supports all-position welding |
| Welding Current | AC (Alternating Current) / DC- (Direct Current Reverse Polarity) | Compatible with most welding equipment, offering high flexibility |
| Deposited Metal Composition | C ≤ 0.08%, Cr ≈ 19-22%, Ni ≈ 9-11% | Low carbon content prevents intergranular corrosion; high chromium and nickel contents enhance corrosion resistance |
| Mechanical Properties | Tensile Strength ≥ 515MPa, Elongation ≥ 35% | Weld strength is superior to the base metal, with excellent toughness |
| Packaging Specification | 5kgs/package | Standard specification, with support for bulk customization |
III. Core Product Advantages
1. Superb Corrosion Resistance for Complex Working Conditions
Featuring a high chromium (19-22%) and high nickel (9-11%) composition design, the weld metal can resist erosion from acid-alkali media, humid environments, food raw materials, etc.;
Suitable for scenarios with high corrosion resistance requirements, such as chemical reactors, food processing equipment, and medical devices, preventing weld rust or contamination.
2. Excellent Welding Performance with Low Operation Threshold
Stable Arc: No arc interruption during welding, reducing defects like weld spatter and porosity;
Low Spatter: Minimal post-weld cleaning required, improving construction efficiency;
Easy Slag Removal & Aesthetic Welds: Complete slag detachment and smooth, uniform weld surface, lowering subsequent grinding costs;
Wide Process Compatibility: Compatible with manual arc welding and automated welding, meeting the needs of small-batch maintenance and large-batch production.
3. All-Position Welding for Complex Structures
Supports all welding positions, including flat welding, vertical welding, horizontal welding, and overhead welding. Even in complex scenarios such as overhead welding on the top of oil storage tanks and welding of irregular equipment structures, it can maintain a stable molten pool and ensure full, defect-free welds.
4. AC/DC Dual-Use for Strong Equipment Compatibility
No need to replace electrodes; it can be directly used with AC welders or DC welders commonly used in factories. There is no requirement for equipment modification, reducing the welding operation costs of enterprises.
IV. Applicable Industries & Scenarios
| Applicable Industry | Typical Application Equipment |
|---|---|
| Chemical Industry | Reactors, acid-alkali storage tanks, chemical pipelines |
| Food Industry | Food processing machinery, aseptic storage tanks, conveying equipment |
| Medical Industry | Medical devices, pharmaceutical reaction tanks, aseptic pipelines |
| Petroleum Industry | Petroleum transmission pipelines, crude oil storage tanks, offshore drilling platform components |
V. Welding Operation Guidelines
1. Pre-Welding Preparation
Thoroughly remove impurities such as rust, oil, and moisture from the weld area. It is recommended to polish the surface with sandpaper until the metallic luster is exposed to prevent porosity in the weld caused by impurities;
The welding rods must be baked at 150℃ for 1 hour and used immediately after baking (or stored in a heat-preserving barrel) to prevent moisture absorption from affecting welding quality.
2. Welding Parameter Control
Adopt low current and short arc operation (e.g., a current of 80-120A is recommended for 3.2mm diameter welding rods);
Control the arc length to 0.5-1 times the diameter of the welding rod to reduce contact between air and the molten pool and lower the risk of oxidation.
3. Safety Protection
Operators must wear welding helmets (to prevent strong light burns), high-temperature-resistant gloves (to prevent scalds), and flame-retardant work clothes (to prevent sparks from igniting clothing);
Ensure good ventilation in the welding area to avoid inhaling harmful gases generated during welding.
VI. Procurement & Cooperation
Supplier Information: A high-quality Chinese manufacturer (OCEAN WELDING), providing direct supply from the source factory with controllable quality;
Procurement Support: Offers wholesale and discounted procurement services. Customized packaging and specifications are available according to requirements to meet the production/maintenance volume needs of different enterprises;
Cooperation Guarantee: Supports the "sample testing first, then bulk purchase" cooperation model. A professional team provides welding technical consultation to solve technical problems encountered during use.
Inquire Now:
Phone Communication: 8615988407388 (Weekdays 9:00-18:00)
Email Contact: chinadayang@yeah.net (Response within 24 hours)
Learn More: Visit the official website www.dayangs.com to view product test reports and application cases
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