NS111
Materialgrade: NS111 corrosion resistant alloy
USgrade: UNS N08825
Germangrade: W,Nr,2.4858
I, overview:
The NS111 (N08825. 2.4858) alloy is atitanium-stabilized full austenitic nickel-iron-chromium alloy with theaddition of copper and molybdenum.
1, NS111 (N08825.2.4858 alloy has the following characteristics:
(1) Good resistance to stress corrosion cracking,
(2) Good pitting corrosion resistance andcrevice corrosion resistance
(3) Good oxidation resistance andnon-oxidative thermal acid performance
(4) Good Mechanical properties at roomtemperature and high temperature up to 550 °C
(5) Certification of pressure vessel withmanufacturing temperature up to 450 °C
2. Chemicalcomposition: %
C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≥ | Ni≥ | Mo≥ | Cu≤ |
0.025 | 0.5 | 1 | 0.02 | 0.01 | 19.5-23.5 | 38.0-46.0 | 2.5-3.5 | 1.5-3.0 |
other | Al≤ | Ti≤ | Fe≤ | N≤ | Co≤ | Nb≤ | W≤ | V≤ |
0.2 | 0.60-1.20 | balance | - | - | - | - | - |
3. Physicalproperties:
(1) Density: ρ = 8.1g / cm 3
(2) Melting temperature range: 1370 ~ 1400° C
Temperature °C | Specific heat capacity J/Kg K | Thermal conductivity W/mK | Resistivity μΩcm | Elastic modulus KN/mm 2 | Thermal expansion coefficient 10 -6 /K |
20 | 440 | 10.8 | 112 | 195 |
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93 |
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100 | 462 | 12.4 | 114 | 190 | 14.1 |
200 | 488 | 14.1 | 118 | 185 | 14.9 |
204 |
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300 | 514 | 15.6 | 120 | 179 | 15.2 |
316 |
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400 | 540 | 16.9 | 124 | 174 | 15.6 |
427 |
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500 | 565 | 18.3 | 126 | 168 | 15.8 |
538 |
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600 | 590 | 19.6 | 126 | 161 | 16 |
649 |
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700 | 615 | 21 | 127 | 154 | 16.7 |
760 |
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800 | 655 | 23.2 | 128 | 142 | 17.2 |
871 |
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900 | 680 | 25.7 | 129 | 130 | 17.6 |
982 |
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1000 | 710 | 28.1 | 130 | 119 | 17.9 |
4. ISO V-notch impacttest:
Average room temperature: axial >= 150J/cm 2 , radial >= 100 J/cm 2 , time-temperature-sensitization curve,
II. Classification and Ex-factory status:
1, Classification: We can produce variousspecifications of seamless pipe, steel plate, round steel, forging, flange, ring, welded pipe, steel strip, wire and supporting Welding consumables,
2. Ex-factory status: Seamless pipe: solidsolution + acid white, with customizablelength; Sheet: solid solution, pickling, trimming; Welded pipe: solid solutionacid white + RT% flaw detection, forgings: annealing + lathe processing; Bar:forging, with surface polishing or lathe processing; Strip: cold-rolled, solidsolution soft phase, and descaled; Wire: solid solution pickling coil orstraight strip, solid solution straight strip with polishing surface.