UNS N08800/N08810/N08811 Corrosion-Resisting Superalloy Bars and Plates
This is solid-solution strengthened heat-resistant and corrosion-resistant nickel-iron-chromium superalloy. Modified for high-temperature structural stabilization with chromium for anti-oxidation and high-temperature corrosion resistance on nickel-iron matrix, they deliver outstanding resistance to high-temperature oxidation, carburization, high-temperature sulfidation and flue gas corrosion under extreme high-temperature service environments. They acquire remarkably elevated high-temperature rupture strength after solution annealing and coarse grain stabilization treatment, integrating high-temperature high strength, superior high-temperature corrosion resistance, favorable hot/cold formability and weldability. They retain stable metallographic structure from cryogenic to ultra-high temperature range with excellent high-temperature fatigue resistance and stress relaxation resistance, acting as premium special heat-resistant alloys for dual severe service conditions of high-temperature load and high-temperature corrosion.
Applications of UNS N08800 / UNS N08810 / UNS N08811
This is solid-solution strengthened heat-resistant and corrosion-resistant nickel-iron-chromium superalloy. Modified for high-temperature structural stabilization with chromium for anti-oxidation and high-temperature corrosion resistance on nickel-iron matrix, they deliver outstanding resistance to high-temperature oxidation, carburization, high-temperature sulfidation and flue gas corrosion under extreme high-temperature service environments. They acquire remarkably elevated high-temperature rupture strength after solution annealing and coarse grain stabilization treatment, integrating high-temperature high strength, superior high-temperature corrosion resistance, favorable hot/cold formability and weldability. They retain stable metallographic structure from cryogenic to ultra-high temperature range with excellent high-temperature fatigue resistance and stress relaxation resistance, acting as premium special heat-resistant alloys for dual severe service conditions of high-temperature load and high-temperature corrosion.
Equivalent Grades and Commonly Used Specifications of UNS N08800 / UNS N08810 / UNS N08811
| Steel Grade | Specification | Specification Name |
| NS1101/NS1102/NS1104 | GB/T 15008 | Corrosion-resistant alloy bars |
| GB/T 15007 | Designations of corrosion-resisting alloy | |
| YB/T 5353 | Hot-rolled plates of corrosion-resisting alloys | |
| YB/T 5354 | Cold-rolled plates of corrosion-resisting alloys | |
| YB/T 5355 | Cold-rolled strips of corrosion-resisting alloys | |
| UNS N08800/N08810/N08811 | ASTM B408 | Standard Specification for Nickel-Iron-Chromium Alloy Rod and Bar |
| ASTM B407 | Standard Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube | |
| ASTM B409 | Standard Specification for Nickel-Iron-Chromium Alloy Plate, Sheet, and Strip | |
| ASTM B366 | Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings | |
| ASTM B564 | Standard Specification for Nickel Alloy Forgings | |
| Products produced as per other specifications or technical agreements (if need) are available. | ||
Typical Chemical Composition of UNS N08800 / UNS N08810 / UNS N08811
|
Elements |
C | Cr | Ni | Fe | Cu | Al | Ti | Si | Mn | P | S |
Al+Ti |
|
NS1101 Mass Fraction% |
≤0.10 | 19.00~23.00 | 30.00~35.00 | ≥39.50 | ≤0.75 | 0.15~0.60 | 0.15~0.60 | ≤1.00 | ≤1.50 | ≤0.03 | ≤0.015 | / |
| NS1102
Mass Fraction% |
0.050~0.10 | 19.00~23.00 | 30.00~35.00 | ≥39.50 | ≤0.75 | 0.15~0.60 | 0.15~0.60 | ≤1.00 | ≤1.50 | ≤0.03 | ≤0.015 |
/ |
|
NS1104 Mass Fraction% |
0.060~0.10 | 19.00~23.00 | 30.00~35.00 | ≥39.50 | ≤0.75 | 0.15~0.60 | 0.15~0.60 | ≤1.00 | ≤1.50 | ≤0.03 | ≤0.015 |
0.85~1.20 |
| Products produced as per other specifications or technical agreements (if need) are available. | ||||||||||||
Typical Heat Treatment Condition and Mechanical Properties of UNS N08800 / UNS N08810 / UNS N08811
|
Delivery Condition |
Mechanical Properties and Hardness of Heat-Treated Specimens | ||||||
| Rp0.2/(N/mm2) | Rm/(N/mm2) | A/% | Zb/% | Aku2d/J | HBW |
HRC |
|
|
UNS N08800 Hot worked, as-hot-worked |
≥240 | ≥550 | ≥30 | / | / | / | / |
| UNS N08800
Cold-worked & hot-worked，Annealed |
≥205 | ≥515 | ≥25（≤7.94mm,≥20） | / | / | / |
/ |
|
UNS N08810/UNS N08811 Cold-worked & hot-worked，Annealed |
≥170 | ≥450 | ≥30 | / | / | / |
/ |
| Products produced as per other specifications or technical agreements (if need) are available. | |||||||
Product Forms and Size Range of UNS N08800 / UNS N08810 / UNS N08811
|
Product forms |
Size range |
|
Bars |
Diameter or side length: 5.0mm~1000mm |
| Flats |
thickness: 4.0mm~1000mm width: 300mm~2200mm |
| Produce as other form and size according to technical requirements are available. | |
