Transcription of NAS 255 - 日本冶金工業
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NAS 255 - 日本冶金工業
nas 255 (UNS N08904, SUS 890L) is an austenitic stainless steel with superior corrosion resistance in comparison with Type 316L. Due to addition of Cu ( ), this material displays excellent corrosion resistance against reducing acids such as sulfuric acid and phosphoric acid. It is used in chemical plants and a wide range of other applications. Nippon Yakin supplies this product in plate, sheet and strip 255 (UNS N08904)NAS High Corrosion Resistant Stainless SteelNASJIS G4304/4305 ASTM A240 ENNAS 255 SUS 890 LUNS Grade/Standard[wt %]CSiMnPSNiCrMoCuNSpecification (SUS 890L) ~ ~ ~ ~ Specification (UNS N08904) ~ ~ ~ ~ CompositionDensity[g/cm3] heat[J/kg . K]452 Electrical resistivity[ . cm] conductivity[W/m . K] coefficient of thermal expansion[10 6/ C]20~100 ~200 ~300 ~400 s modulus[MPa] 104 MagnetismNoneMelting range[ C]1360~1397 Physical PropertiesMechanical PropertiesMechanical Properties at Room proof stress[MPa]Tensile strength[MPa]Elongation[%]Hardness[HRB]S pecification (SUS 890L)2154903590 Specification (UNS N08904) 2204903590 ExampleHot-rolled plate 12mmt2475935786 Cold-rolled sheet 2mmt2916324379 Because NAS255 contains high concentrations of chromium, nickel and molybde-num, it offers excellent pitting corrosion resistance, crevice corrosion resistance, stress corrosion cracking (SCC) resistance
NAS 255 (UNS N08904, SUS 890L) is an austenitic stainless steel with superior corrosion resistance in comparison with Type 316L. Due to addition of Cu (1.5%), this material displays excellent corrosion resistance against reducing
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