100% Quality Tested ASTM A387 Grade 21 Class 1 Steel Plates
- ASTM A387 Grade 21 Class 1 Steel Plates available for sale in thickness: 6MM to 300MM, width: 1500mm to 4050mm, and length: 3000mm to 15000mm
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Metline is a specialized supplier of ASTM A387 Grade 21 Class 1 steel sheets and plates. We can offer ASTM A387 Grade 21 Class 1 pressure vessel steel plates in a variety of thickness and sizes at reasonable prices. ASTM A387 Grade 21 Class 1 is either available as ex–stock or directly shipped from the mill to our customers across the globe.
ASTM A387 is the specification covers chromium-molybdenum alloy steel plates for welded broilers and pressure vessels designed for elevated temperature service. Materials considered under this specification are available in grades 2, 12, 11, 22, 22L, 21, 21L, 5, 9 and 91. The steel materials shall be killed and shall be thermally treated.
Chemical Composition of ASTM A387 Grade 21 Class 1 Steel Plates
|Grade||The Element Max (%)|
|A387 Gr.21 Cl.1||0.04-0.15||0.5||0.25-0.66||0.035||0.035||2.63-3.37||0.85-1.15|
Mechanical Properties of ASTM A387 Grade 21 Class 1 Steel Plates
|A387 Gr.21 Cl.1||mm||Min Mpa||Mpa||Min %|