SAW
MF-29A/ US-2CW
Flux and wire combination for low C-2.25%Cr-W-V-Nb steel
| Features: | - Applied for ASTM A335 Gr.23 and equivalents
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| Classification: | AWS - |
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| Type of flux: | Fused |
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| Polarity: | DCEP |
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Welding Positions:
Packaging data
| Flux | Mesh | Can | Wire | φ mm | Spool | Coil |
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| MF-29A | 48xD | 25kg | US-2CW | 1.6 | 20kg | - |
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| 2.4 | - | 25kg |
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| 3.2 | - | 25kg |
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| 4.0 | - | 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 | 0.04 | 0.15 |
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| Si | 0.13 | 0.60 |
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| Mn | 1.15 | 0.10-1.60 |
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| P | 0.004 | 0.020 |
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| S | 0.004 | 0.010 |
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| Cu | 0.11 | 0.40 |
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| Cr | 2.26 | 1.90-2.60 |
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| Mo | 0.12 | 0.05-0.85 |
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| W | 1.75 | 1.00-2.00 |
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| V | 0.24 | 0.15-0.30 |
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| Nb | 0.026 | 0.040 |
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| Note: aSingle values are maximium. |
Composition (weld metal mass %)
| | Typical | Guarantya |
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| C | 0.04 | 0.15 |
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| Si | 0.25 | 0.60 |
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| Mn | 1.15 | 0.10-1.60 |
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| P | 0.006 | 0.020 |
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| S | 0.002 | 0.010 |
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| Cu | 0.13 | 0.40 |
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| Cr | 2.12 | 1.90-2.60 |
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| Mo | 0.12 | 0.05-0.85 |
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| W | 1.69 | 1.00-2.00 |
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| V | 0.22 | 0.15-0.30 |
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| Nb | 0.016 | 0.040 |
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| Note: aSingle values are maximium. |
Weld mechanical properties
| | Typical | Guaranty |
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| 0.2%YS (MPa) | 520 | 300min. |
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| TS (MPa) | 620 | 510min. |
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| EI on 4d (%) | 27 | 17min. |
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| IV 20°C (J) | 100 | - |
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| PWHT (°Cxh) | 715x2 | 715x2 |
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