We manufacture forging ingots, billets, and blooms in ASTM A182 F5 Steel, a chromium-molybdenum low alloy steel designed for high-temperature and high-pressure service.
The combination of chromium and molybdenum provides excellent oxidation resistance, elevated-temperature strength, creep resistance, and long-term thermal stability.
ASTM A182 F5 is widely used for manufacturing forged flanges, forged fittings, valves, shafts, fasteners, and pressure vessel components for boilers, refineries, petrochemical plants, power generation facilities, and oil & gas processing industries where reliable performance under demanding operating conditions 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) | Max. 0.50 | Acts as a deoxidizer and improves strength |
| Chromium (Cr) | 4.00 – 6.00 | Improves oxidation, corrosion resistance, and high-temperature strength |
| Molybdenum (Mo) | 0.45 – 0.65 | Enhances creep resistance and elevated-temperature performance |
| 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 F5 is commonly referenced as:
ASTM A182 F5 combines excellent oxidation resistance, creep strength, and elevated-temperature performance with good weldability and machinability. These properties make it an ideal material for forged components operating under high temperatures and pressure in power generation, refinery, petrochemical, and oil & gas industries where long-term reliability is essential.
| Grade | Chromium (%) | Molybdenum (%) | Typical Applications | Comments |
| ASTM A182 F5 | 4.00 – 6.00 | 0.45 – 0.65 | Boilers, Refineries, Flanges | Excellent oxidation resistance |
| ASTM A182 F9 | 8.00 – 10.00 | 0.90 – 1.10 | Refinery & High-Temperature Equipment | Higher chromium content |
| ASTM A182 F11 | 1.00 – 1.50 | 0.44 – 0.65 | Steam Piping & Power Plants | Better weldability |
| ASTM A182 F22 | 2.00 – 2.50 | 0.87 – 1.13 | Pressure Vessels & Power Plants | Excellent creep strength |
ASTM A182 F5 is a chromium-molybdenum low alloy steel developed for high-temperature and high-pressure service. It offers excellent oxidation resistance, elevated-temperature strength, creep resistance, and dependable mechanical performance for manufacturing forged flanges, valves, fittings, shafts, fasteners, and pressure vessel components.
Kesari Alloys manufactures forging ingots, billets, and blooms in ASTM A182 F5 Steel to meet the demanding requirements of the power generation, refinery, petrochemical, and oil & gas industries.