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	PRODUCT DATA of AISI 439

Material	AISI 439
Product Datasheet	439_Data_Sheet
General Information	Ferritic Stainless Steel
Chemical Composition	17.75Cr, 0.5Ni, 12xC Ti, 0.07C, rem Fe

	EXPERIENCE IN PRACTICE

Equivalent Designations

UNS43035

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

General Corrosion Status	No specific corrosion protection required
Stress Corrosion Status	High 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 Corrosion	Can 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