We manufacture forging ingots, billets, and blooms in ASTM A182 F9 Steel, a chromium-molybdenum low alloy steel developed for high-temperature and high-pressure service.
With its higher chromium and molybdenum content, ASTM A182 F9 offers excellent oxidation resistance, creep strength, thermal stability, and long-term performance under elevated operating temperatures.
ASTM A182 F9 is widely used for manufacturing forged flanges, forged fittings, valves, shafts, fasteners, pressure vessel components, and piping systems for refineries, petrochemical plants, power generation facilities, and oil & gas industries where superior heat resistance and mechanical reliability are required.
| Element | Content (%) | Function / Effect |
| Carbon (C) | Max. 0.15 | Provides strength while maintaining weldability |
| Manganese (Mn) | 0.30 – 0.60 | Improves toughness and hardenability |
| Silicon (Si) | Max. 1.00 | Improves strength and acts as a deoxidizer |
| Chromium (Cr) | 8.00 – 10.00 | Provides excellent oxidation and corrosion resistance at elevated temperatures |
| Molybdenum (Mo) | 0.90 – 1.10 | Improves creep resistance and high-temperature strength |
| Phosphorus (P) | Max. 0.030 | Controlled impurity for improved toughness |
| Sulphur (S) | Max. 0.030 | Controlled impurity for better machinability |
| Iron (Fe) | Balance | Base metal |
(Properties may vary depending on section size and heat treatment conditions.)
ASTM A182 F9 is commonly referenced as:
ASTM A182 F9 provides an excellent combination of oxidation resistance, creep strength, and elevated-temperature performance. Its higher chromium and molybdenum content improves thermal stability and long-term durability, making it an ideal choice for forged components used in refineries, petrochemical plants, power generation facilities, and other high-temperature industrial applications.
| Grade | Chromium (%) | Molybdenum (%) | Typical Applications | Comments |
| ASTM A182 F5 | 4.00 – 6.00 | 0.45 – 0.65 | Boilers, Refineries | Good high-temperature performance |
| ASTM A182 F9 | 8.00 – 10.00 | 0.90 – 1.10 | Refineries, Petrochemical Plants | Higher oxidation and creep resistance |
| ASTM A182 F11 | 1.00 – 1.50 | 0.44 – 0.65 | Steam Piping | Good creep resistance |
| ASTM A182 F22 | 2.00 – 2.50 | 0.87 – 1.13 | Pressure Vessels | High-pressure and high-temperature service |
ASTM A182 F9 is a chromium-molybdenum low alloy steel designed for high-temperature and high-pressure applications. It offers excellent oxidation resistance, superior creep strength, and dependable mechanical performance, making it suitable for manufacturing forged flanges, forged fittings, valves, shafts, fasteners, pressure vessel components, and piping systems used in refineries, petrochemical plants, power generation facilities, and oil & gas industries.
Kesari Alloys manufactures forging ingots, billets, and blooms in ASTM A182 F9 Steel to meet the demanding requirements of critical forging applications.