The A102 welding electrode (equivalent to AWS A5.4 E308-16) is a rutile-coated stainless steel electrode designed for welding 18Cr-8Ni (Type 304) austenitic stainless steels. It provides excellent arc stability, smooth weld beads, and superior corrosion resistance, making it ideal for structural and pressure applications involving stainless steel.
This electrode conforms to international standards including AWS A5.4, ISO 3581-A (E 19 9 R 1 2), and relevant GB/T (Chinese) specifications.
🔧 Key Features:
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Excellent corrosion resistance in a wide range of environments
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Smooth, stable arc with minimal spatter
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Easy slag removal and good bead appearance
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Can be used in all welding positions (1G–4G / flat, vertical, overhead, etc.)
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High crack resistance due to low carbon content
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AC or DC current compatibility
📦 Typical Applications:
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Welding of Type 304 / 304L stainless steel
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Food processing equipment
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Chemical and petrochemical plants
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Dairy and brewery vessels
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Pressure vessels and piping
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General fabrication of stainless components
📊 Technical Specifications:
| Parameter | Value |
|---|---|
| Chinese Model | A102 |
| AWS / ASME / ISO Spec | E308-16 / ISO 3581-A E 19 9 R 1 2 |
| Welding Positions | All positions (flat, vertical, etc.) |
| Coating Type | Rutile |
| Current | AC or DC (+) |
| Tensile Strength | ≥ 550 MPa |
| Yield Strength | ≥ 350 MPa |
| Elongation | ≥ 30% |
| Ferrite Content (FN) | Typically 5–10 |
| Usable Diameter Range | 2.5 mm, 3.2 mm, 4.0 mm, 5.0 mm |
⚙️ Welding Recommendations:
| Electrode Size | Amperage Range |
|---|---|
| 2.5 mm | 50–80 A |
| 3.2 mm | 80–110 A |
| 4.0 mm | 110–160 A |
| 5.0 mm | 150–220 A |
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Polarity: AC or DC (+)
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Preheating: Not typically required
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Interpass temperature: ≤ 150°C
🏭 Standards & Compliance:
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AWS A5.4 / ASME SFA-5.4: E308-16
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ISO 3581-A: E 19 9 R 1 2
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GB/T 983 (China): Equivalent to A102
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RoHS compliant (on request)
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