ASTM A213 T91 is a type of seamless ferritic alloy-steel pipe with high temperature and pressure resistance, which is mainly used in superheaters and reheaters of power plant boilers and other high...
ASTM A213 T91 is a type of seamless ferritic alloy-steel pipe with high temperature and pressure resistance, which is mainly used in superheaters and reheaters of power plant boilers and other high-temperature services. The material composition of A213 T91 includes chromium, molybdenum, and vanadium, which provides excellent resistance to high-temperature oxidation and corrosion. The addition of nitrogen also enhances its strength and toughness at elevated temperatures. A213 T91 is a widely used material in the power generation industry, as well as in other high-temperature applications in various industries.
Technical Data
| Element | Composition Range (%) |
|---|---|
| Carbon (C) | 0.07-0.14 |
| Manganese (Mn) | 0.30-0.60 |
| Phosphorus (P) | ≤0.020 |
| Sulfur (S) | ≤0.010 |
| Silicon (Si) | 0.20-0.50 |
| Chromium (Cr) | 8.00-9.50 |
| Molybdenum (Mo) | 0.85-1.05 |
| Nickel (Ni) | ≤0.40 |
| Copper (Cu) | ≤0.25 |
| Vanadium (V) | 0.18-0.25 |
| Nitrogen (N) | ≤0.030 |
| Aluminum (Al) | ≤0.06 |
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