Stainless Steel Welding Rod A307
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- Contact: 韓吉英
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A307 Stainless Steel Welding Electrode
GB/T 983 E309-15 AWS A5.4 E309-15 ISO 3581-A-E(22 12)B 4 2 ISO 3581-B-ES 309-15
Suitable for welding 06Cr23Ni13 and similar types of stainless steel, dissimilar steels, as well as high-chromium steel, high-manganese steel, etc.
An alkaline-coated Cr23Ni13 stainless steel electrode with deposited metal that offers excellent crack resistance and oxidation resistance.
Direct current reverse polarity (DC+).
Chemical Composition of Deposited Metal (%)
| Test Item | C | Mn | Si | P | S | Cr | Ni | Mo | Cu |
| GB/T Standard | ≤0.15 | 0.50–2.50 | ≤1.00 | ≤0.040 | ≤0.030 | 22.0–25.0 | 12.0–14.0 | ≤0.75 | ≤0.75 |
| Example Value | 0.057 | 1.30 | 0.22 | 0.022 | 0.007 | 23.43 | 12.82 | 0.040 | 0.035 |
Mechanical Properties of Deposited Metal
| Test Item | Rm (MPa) | A(%) |
| GB/T Standard | ≥550 | ≥25 |
| Example Value | 600 | 38 |
Reference Current
| Electrode Diameter (mm) | Φ2.5 | Φ3.2 | Φ4.0 | Φ5.0 | |
| Welding Current (A) | Flat, Horizontal | 50–90 | 80–120 | 100–150 | 140–180 |
| Vertical, Overhead | 60–80 | 90–110 | 110–140 | — | |
1. Drying requirement: Electrodes must be baked at 250°C for 1 hour before use and used immediately after baking.
2. Use low current and short arc welding as much as possible during welding, with minimal oscillation amplitude.
| Industry Category: | Hardware & Tools/Welding Materials & Accessories/Welding Rods |
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