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PRODUCT DATA of AISI 439
MaterialAISI 439
Product Datasheet439_Data_Sheet
General InformationFerritic Stainless Steel
Chemical Composition17.75Cr, 0.5Ni, 12xC Ti, 0.07C, rem Fe
EXPERIENCE IN PRACTICE
Equivalent DesignationsUNS43035
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusNo specific corrosion protection required
Stress Corrosion StatusHigh Resistance to SCC: Table 1
Remark: Tempering between 371C and 593C shall be avoided because corrosion and stress corrosion cracking resistance is lowered.
Data Quality: Design Data
Bimetallic CorrosionCan be connected without any restriction to: Cr, Au, Ag, Gun-metal, P-bronzes, Sn-bronzes, Ti+alloys, Ni, Monel, Inconel, Ni/Mo alloys
Can be connected in a non-controlled environment to the above and Cd, austenitic cast iron, Cu, Brasses, Al-bronzes, Si-bronzes, Au, Pt, C, Rh, Sn-Pb alloys, Sn, Pb, 300 series stainless steels
Can be connected in a clean room environment to above and Al-Cu alloys
Needs specific measures: All others
Test:ECSS-Q-ST-70C Rev.1 Table 5.1
Data Quality: Design Data