We manufacture forging ingots, billets, and blooms in ASTM A182 F1 Steel, which belongs to the Carbon-Molybdenum Low Alloy Steel family under the Alloy Steel Forgings for Piping Components category. ASTM A182 F1 is a low-alloy forging steel specifically developed for high-temperature and moderate-pressure service.
The addition of molybdenum enhances elevated-temperature strength, creep resistance, and long-term thermal stability compared to conventional carbon steels.
ASTM A182 F1 is widely used for manufacturing forged flanges, valves, fittings, pressure vessel components, shafts, fasteners, and piping components for power plants, refineries, petrochemical facilities, and oil & gas industries where reliable mechanical performance is essential.
| 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) | 0.50 – 1.00 | Enhances strength and acts as a deoxidizer |
| Phosphorus (P) | Max. 0.030 | Controlled impurity for improved toughness |
| Sulphur (S) | Max. 0.030 | Controlled impurity for machinability |
| Molybdenum (Mo) | 0.44 – 0.65 | Improves high-temperature strength and creep resistance |
| Iron (Fe) | Balance | Base metal |
(Properties may vary depending on section size and heat treatment conditions.)
ASTM A182 F1 is commonly referenced as:
ASTM A182 F1 offers an excellent combination of elevated-temperature strength, creep resistance, weldability, and reliable mechanical performance. The molybdenum content improves resistance to thermal deformation and enhances long-term service life under demanding operating conditions. Its excellent fabrication characteristics and dependable performance make it a preferred choice for forged piping components used in power generation, refinery, petrochemical, and oil & gas industries.
| Grade | Chromium (%) | Molybdenum (%) | Typical Applications | Comments |
| ASTM A182 F1 | — | 0.44 – 0.65 | Flanges & Pressure Components | Molybdenum alloy steel |
| ASTM A182 F11 | 1.00 – 1.50 | 0.44 – 0.65 | Steam Piping | Improved creep resistance |
| ASTM A182 F22 | 2.00 – 2.50 | 0.87 – 1.13 | Pressure Vessels | Higher temperature service |
| ASTM A182 F5 | 4.00 – 6.00 | 0.45 – 0.65 | Refineries | Better oxidation resistance |
ASTM A182 F1 is a Carbon-Molybdenum Low Alloy Steel designed for forged piping components operating under elevated temperatures and moderate pressure conditions. It provides good weldability, machinability, creep resistance, and dependable mechanical properties for manufacturing forged flanges, valves, fittings, pressure vessel components, shafts, and fasteners.
Kesari Alloys manufactures forging ingots, billets, and blooms in ASTM A182 F1 Steel to meet the requirements of forging manufacturers serving the power generation, petrochemical, refinery, oil & gas, and heavy engineering industries.