ASTM A387 grade 2 welded steel pipe/tube
ASTM A387 grade 2 specification covers chromium-molybdenum alloy steel plates intended primarily for welded boilers and pressure vessels designed for elevated temperature service.
ASTM A387 grade 2 chemical composition
| Element | Carbon | Manganese | Phosphorus,max | Sulfur,max | Silicon | chromium | Molybdenum | |||||||
| Grade 2 | Heat analysis | Product analysis | Heat analysis | Product analysis | Heat analysis | Product analysis | Heat analysis | Product analysis | Heat analysis | Product analysis | Heat analysis | Product analysis | Heat analysis | Product analysis |
| 0.05-0.21 | 0.04-0.21 | 0.55-0.80 | 0.50-0.88 | 0.035 | 0.035 | 0.035 | 0.035 | 0.15-0.40 | 0.13-0.45 | 0.50-0.80 | 0.46-0.85 | 0.45-0.60 | 0.40-0.65 | |
ASTM A387 grade 2 welded steel pipe/tube mechanical properties
| Tensile strength,ksi[mpa] | Yield strength,min,ksi[mpa] | Elongation in 8 in[200mm],min,% | Elongation in 2 in[50mm],min,% | Reduction of area,min,% | |
| Grade 2 | 70-90 | 45[310] | 18 | 22 |
A387 grade 2 welded pipe/tube dimension
ERW; outer diameter:21.3-660mm thickness:6-25mm
LSAW; outer diameter:325-1524mm thickness:6-50mm
SSAW: outer diameter:219-3200mm thickness:5-25mm
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