SAW
MF-38 / 
US-40
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 F8P6-EA3-A3, F9A6-EA3-A3 |
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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 |
| Can | Wire | φ mm | Spool | Coil |
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| MF-38 | 12x65 | 25kg | US-40 | 2.4 | 20kg | 25kg |
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| | 20x200 | 25kg | | 3.2 | - | 25kg |
| | 20xD | 25kg | | 4.0 | - | 25kg |
| | | | | 4.8 | - | 25kg |
| | | | | 6.4 | - | 25kg |
| Volume mm | 240W, 350H, 240L | Volume mm | 300W, 110H, 300L | 430W, 90H, 430L |
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Composition (wire mass%)
| | Typical | Guarantya |
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| C | 0.14 | 0.05-0.17 |
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| Si | 0.02 | 0.20 |
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| Mn | 1.78 | 1.65-2.20 |
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| P | 0.009 | 0.025 |
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| S | 0.014 | 0.025 |
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| Mo | 0.52 | 0.45-0.65 |
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| Cu | 0.11 | 0.35 |
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| Note: aSingle values are maximium. |
Composition (weld metal mass %)
| | Typical | Guarantya |
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| C | 0.08 | 0.15 |
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| Si | 0.34 | 0.80 |
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| Mn | 1.58 | 2.10 |
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| P | 0.017 | 0.030 |
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| S | 0.009 | 0.030 |
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| Mo | 0.45 | 0.40-0.65 |
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| Cu | 0.12 | 0.35 |
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| Note: aSingle values are maximium. |
Weld mechanical properties
| | Typical | Guaranty |
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| 0.2%YS (MPa) | 560 | 469min.
|
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| TS (MPa) | 630 | 552-689 |
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| EI on 4d (%) | 29 | 20min. |
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| IV -51°C (J) | 58 | 27min. |
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| PWHT (°Cxh) | 620x1 | 620±15x1 |
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| NK | KAW3Y50M, H10 |
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| Note: Single electrode |
