ASTM A387 GRADE 11 Class 1
ASTM A387 / ASTM A387 GRADE 11 Class 1 alloy steel plates. With a steadfast commitment to excellence, Amardeep Steel delivers top-quality products that align with industry standards, catering to diverse industrial applications.
ASTM A387 GRADE 11 Class 1 Steel Plate stands as a notable example of weldable carbon steel plates purposefully designed for deployment within pressure vessels and boilers subjected to elevated temperatures. This material derives enhanced properties from the strategic incorporation of chromium and molybdenum, two elements that confer upon the steel heightened resistance against corrosion and the capability to endure elevated heat conditions. SA387 Grade 9 emerges as the preferred choice for fabricators catering to the oil, gas, and petrochemical sectors.
ASTM A387 Grade 9 Alloy Steel Plates Specifications
| Designation | Nominal Chromium Content (%) |
Nominal Molybdenum Content (%) |
| A387 Grade 9 | 9.00% | 1.00% |
Chemical Requirements
| Grade | The Element Max (%) | ||||||
| C | Si | Mn | P | S | Cr | Mo | |
| A387 Gr.9 Cl.1 | 0.15 | 1.05 | 0.25-0.66 | 0.03 | 0.03 | 7.90-10.10 | 0.85-1.10 |
Mechanical Composition
| Grade | Thickness | Yield | Tensile | Elongation |
| A387 Gr.9 Cl.1 | mm | Min Mpa | Mpa | Min % |
| t≦50 | 205 | 415-585 | 18 | |
| 50<t≦200 | – | – | – |