ASTM A516 material is fine grained structural steel for pressure vessels. ASTM A516 material is characterised by good weldability and high resistance to brittle cracking. ASTM A516 material is used for manufacturing vessels for pressurised gas (LPG, butane and propane tanks), parts for steam boilers, pressure piping, compressors, etc.
ASTM A516 material Chemical Composition:
| Grade | Maximum C % for thickness t (mm) | Mn % for thickness t (mm) | Si % | P % max | S % max | ||||
| 6-12.5mm | 12.5-25mm | 25-50mm | >50mm | ≤12.5mm | >12.5mm | ||||
| A516 Grade 55 | 0.18 | 0.2 | 0.22 | 0.25 | 0.55-0.98 | 0.60-1.30 | 0.13-0.45 | 0.035 | 0.035 |
| A516 Grade 60 | 0.21 | 0.23 | 0.23 | 0.25 | 0.6-0.9 | 0.80-1.20 | 0.13-0.45 | 0.035 | 0.035 |
| A516 Grade 65 | 0.24 | 0.26 | 0.26 | 0.28 | 0.85-1.20 | 0.85-1.20 | 0.13-0.45 | 0.035 | 0.035 |
| A516 Grade 70 | 0.27 | 0.28 | 0.28 | 0.3 | 0.85-1.20 | 0.85-1.20 | 0.13-0.45 | 0.035 | 0.035 |
ASTM A516 material Mechanical Property:
| Grade | Tensile strength | Minimum yield strength | Minimum elongation (%) gauge length | |
| (MPa) | (MPa) | 50mm | 200mm | |
| A516 Grade 55 | 380-515 | 205 | 27 | 23 |
| A516 Grade 60 | 415 - 550 | 220 | 25 | 21 |
| A516 Grade 65 | 450 - 585 | 240 | 23 | 19 |
| A516 Grade 70 | 485 - 620 | 260 | 21 | 17 |
ASTM A516 material delivers reliable performance in low temperatures, offers good weldability, and boasts superb notch toughness. That makes ASTM A516 material highly suitable for boiler fabrication.
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