The chemical composition of ASTM A350 Grade LF2 is designed for low-temperature service and typically adheres to the following specification:
ASTM A350 Grade LF2 - Chemical Composition:
| Element | Composition Range |
|---|---|
| Carbon (C) | 0.26% max |
| Manganese (Mn) | 0.60% to 1.35% |
| Phosphorus (P) | 0.035% max |
| Sulfur (S) | 0.035% max |
| Silicon (Si) | 0.15% to 0.40% |
| Nickel (Ni) | 0.40% max |
| Copper (Cu) | 0.20% max |
| Chromium (Cr) | 0.30% max |
| Molybdenum (Mo) | 0.12% max |
| Vanadium (V) | 0.10% max |
Additional Notes:
The carbon content of 0.26% max ensures the material remains tough and retains its mechanical properties in low-temperature conditions.
Manganese (Mn) enhances the steel's strength, while silicon (Si) improves its resistance to oxidation.
Nickel (Ni) contributes to toughness at low temperatures.
The presence of chromium (Cr) and molybdenum (Mo) helps with strength and corrosion resistance in certain environments, although this grade is not primarily designed for high-corrosion resistance.
This composition makes ASTM A350 LF2 ideal for low-temperature service, ensuring good toughness and strength in challenging conditions.
