ASTM A387 Grade 12 Class 2 steel plate is a chrome molybdenum alloy steel for use in weldable pressure vessels and industrial boilers. A387 Grade 12 Class 2 steel is used in elevated temperature service because of greater ability to handle the high temperature.
ASTM A387 Grade 12 Class 2 chrome molybdenum steel plate benefits from added chromium, which provides excellent corrosion and oxidation resistance making it ideal for sour service applications in the oil and gas industry.
Chemical composition of ASTM A387 Grade 12 Class 2 chrome molybdenum steel plate:
| C |
Mn |
P |
S |
Si |
Cr |
Mo |
Others |
| 0.04-0.17 |
0.35-0.73 |
0.025 |
0.025 |
0.13-0.45 |
0.74-1.21 |
0.40-0.65 |
- |
Mechanical property of ASTM A387 Grade 12 Class 2 chrome molybdenum steel plate:
| Grade |
Tensile Strength |
Yield Strength |
Elongation in 2 inches |
| (Mpa) min. |
(MPa) min. |
(%) max. |
| ASTM A 387 Grade 12 Class 2 |
450-585 |
275 |
22 |
Features of ASTM A387 Grade 12 Class 2 chrome molybdenum steel plate:
The Molybdenum component in ASTM A387 Grade 12 Class 2 chrome molybdenum steel plate increases the plate tensile strength at high temperatures, and it also provides high resistance against oxidation and corrosion by increasing the lattice strain of the steel structure. That effectively stops the corrosive agents from dissolving the iron out of the steel structure. ASTM A387 Grade 12 Class 2 chrome molybdenum steel plate is good option for heat-resistant pressure vessels and sour gas environments.
Application of ASTM A387 Grade 12 Class 2 chrome molybdenum steel plate:
ASTM A387 Grade 12 Class 2 chrome molybdenum steel plate is popular used by power plant and dignity health medical foundation oil and gas industries in the production facilities because of the alloy’s key properties.
