High nickel alloy steel grade that has molybdenum, titanium and niobium along with chromium. Due to the properties of this material it has excellent performance under high temperatures up to 870˚C [1600˚F] degrees.
This high-nickel alloy steel is alloyed with chromium, molybdenum, titanium, and niobium to provide excellent high-temperature strength and stability. Its carefully balanced composition gives it strong resistance to oxidation, corrosion, and degradation when exposed to elevated temperatures, making it suitable for demanding service conditions where conventional stainless steels may lose their mechanical properties.
The alloy can perform reliably at temperatures up to approximately 870°C [1600°F], while maintaining good strength and structural integrity. It is well suited for high-temperature industrial applications such as heat-treatment equipment, furnace components, chemical processing equipment, power generation systems, and other components exposed to severe thermal and corrosive environments.
Final chemical, mechanical properties, dimensions and tolerances are confirmed against the governing specification and purchase order.
| % | Carbon | Silicon | Manganese | Phosphorus | Sulfur | Nickel | Chromium | Copper | Molybdenum | Titanium | Aluminum |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | - | - | - | - | - | 38.00 | 19.50 | 1.50 | 2.50 | 0.60 | - |
| Max | 0.05 | 0.5 | 1.00 | 0.03 | 0.03 | 46.00 | 23.50 | 3.00 | 3.50 | 1.20 | 0.20 |
| - | Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|---|
| Min | 75 ksi [515 MPa] | 35 ksi [241 MPa] | 30% | - |
| Max | - | - | - | 331 HB |
| TRADEMARK | UNS | WERKSTOFF NR. | EN | BS | JIS | AFNOR |
|---|---|---|---|---|---|---|
| Incoloy 825 | N08825 | 2.4858 | NiCr21Mo | NA 16 | SUS 825 | NFE30C20DUM |
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