ASTM A387GR11CL2/ASTM A387 Grade 11 Class 2 vessel plates boiler steel sheets are suitable for refining and gas treatment in hydrogenation reaction and conversion equipment at high temperature.The ASTM A387GR11CL2/ASTM A387 Grade 11 Class 2 steel is always used in oil, chemical, power plant, boiler and other industries to make reactor, heat exchanger, separator, spherical tank, oil tank, liquefied gas tank, pressure shell of nuclear reactor, boiler drum, liquefied petroleum steam bottle, high pressure water pipe of hydropower station, turbine volute and other equipment and components.
ASTM A387GR11CL2/ASTM A387 Grade 11 Class 2 vessel plates boiler steel sheets chemical composition:
| Grade | C | Mn | Si | P max | S max |
| ASTM A387GR11CL2/ASTM A387 Grade 11 Class 2 | 0.04-0.17 | 0.35-0.73 | 0.44-0.86 | 0.035 | 0.035 |
ASTM A387GR11CL2/ASTM A387 Grade 11 Class 2 vessel plates boiler steel sheets mechanical property:
Grade |
Tensile Strength(MPa) | Yield Strength(MPa) min | % Elongation in 2 in.(50mm) min | Impacting Test Temperature(°C) |
| ASTM A387GR11CL2/ASTM A387 Grade 11 Class 2 | 515-690 | 310 | 22 | -20,40,-60 |
For ASTM A387GR11CL2/ASTM A387 Grade 11 Class 2 vessel plates boiler steel sheets, the max. rolling thickness of BBN steel is 250mm.According to different thickness and impact requirements, the heat treatment of normalizing plus tempering or normalizing plus fast cooling plus tempering is usually adopted for ASTM A387GR11CL2/ASTM A387 Grade 11 Class 2 vessel plates boiler steel sheets.
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