SAW
PF-500/ US-521H
Flux and wire combination for 2.25%Cr-1%Mo-V steel
| Features: | - Applied for ASTM A542 Type D Cl.4a and equivalents
- Excellent tensile strength at high temperatures and good creep rupture strength
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| Classification: | AWS A5.23 F9P2-EG-G |
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| Type of flux: | Bonded |
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| Redrying of flux: | 200-300°Cx1h |
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| Polarity: | AC |
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Welding Positions:
Packaging data
| Flux |
| Can | Wire | φ mm | Coil |
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| PF-500 | 10x48 | 20kg | US-521H | 2.4 | 25kg | - | - |
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| 3.2 | 25kg | - | - |
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| 4.0 | 25kg | 75kg | 150kg |
| Volume mm | 240W, 350H, 240L | Volume mm | 430W, 90H, 430L | 740W, 110H, 740L | 840W, 110H, 840L |
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Composition (wire mass%)
| | Typical | Guarantya |
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| C | 0.16 | 0.18 |
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| Si | 0.21 | 0.30 |
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| Mn | 1.19 | 0.30-1.50 |
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| P | 0.002 | 0.010 |
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| S | 0.001 | 0.010 |
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| Ni | <0.01 | 0.20 |
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| Cr | 2.13 | 2.00-2.65 |
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| Mo | 0.99 | 0.90-1.20 |
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| V | 0.36 | 0.25-0.45 |
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| Nb | 0.019 | 0.010-0.040 |
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| Cu | 0.10 | 0.30 |
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| Note: aSingle values are maximium. |
Composition (weld metal mass %)
| | Typical | Guarantya |
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| C | 0.12 | 0.05-0.15 |
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| Si | 0.15 | 0.05-0.35 |
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| Mn | 1.14 | 0.50-1.30 |
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| P | 0.003 | 0.010 |
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| S | 0.001 | 0.010 |
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| Ni | <0.01 | 0.20 |
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| Cr | 2.04 | 2.00-2.60 |
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| Mo | 0.99 | 0.90-1.20 |
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| V | 0.33 | 0.20-0.40 |
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| Nb | 0.015 | 0.010-0.040 |
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| Cu | 0.09 | - |
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| Note: aSingle values are maximium. |
Weld mechanical properties
| | Typical | Guaranty |
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| 0.2%YS (MPa) | 620 | 530min.
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| TS (MPa) | 720 | 620min. |
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| EI on 4d (%) | 23 | 16min. |
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| IV -18°C (J) | 150 | - |
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| PWHT (°Cxh) | 705°C×8h
| 705±15x8 |
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