SAW
MF-38 / 
US-A4
Flux and wire combination for 0.5%Mo steel
| Features: | - Applied for ASTM A204 Gr. A, B, C and equivalents
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| Classification: | AWS A5.23 F8P2-EA4-A4, F8A4-EA4-A4 |
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| Type of flux: | Fused |
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| Redrying of flux: | 150-350°Cx1h |
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| Polarity: | AC |
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Welding Positions:
Packaging data
| Flux | Mesh | Can | Wire | φ mm | Coil |
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| MF-38 | 12x65 | 25kg | US-A4 | 3.2 | 25kg |
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| 20x200 | 25kg |
| 4.0 | 25kg |
| 20xD | 25kg |
| 4.8 | 25kg |
| Volume mm | 240W, 350H, 240L | Volume mm | 430W, 90H, 430L |
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Composition (wire mass%)
| | Typical | Guarantya |
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| C | 0.09 | 0.05-0.15 |
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| Si | 0.04 | 0.20 |
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| Mn | 1.59 | 1.20-1.70 |
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| P | 0.01 | 0.025 |
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| S | 0.014 | 0.025 |
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| Ni | 0.02 | 0.25 |
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| Cr | 0.04 | 0.15 |
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| Mo | 0.52 | 0.45-0.65 |
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| Cu | 0.10 | 0.35 |
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| Note: aSingle values are maximium. |
Composition (weld metal mass %)
| | Typical | Guarantya |
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| C | 0.10 | 0.15 |
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| Si | 0.39 | 0.80 |
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| Mn | 1.35 | 1.60 |
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| P | 0.013 | 0.030 |
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| S | 0.013 | 0.030 |
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| Mo | 0.52 | 0.40-0.65 |
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| Cu | 0.11 | 0.35 |
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| Note: aSingle values are maximium. |
Weld mechanical properties
| | Typical | Guaranty |
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| 0.2%YS (MPa) | 510 | 469min. |
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| TS (MPa) | 600 | 552-689 |
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| EI on 4d (%) | 29 | 20min. |
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| IV -51°C (J) | 40 | 27min. |
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| PWHT (°Cxh) | 620x1 | 620±15x1 |
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