ASTM A387 GRADE 9 Class 1

ASTM A387 / ASME SA387 GRADE 9 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.
ASME SA387 Grade 9 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 |
The carbon content for plates over 5 in. (125 mm) in thickness is 0.17 max on product
analysis.
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 |
– |
– |
– |