ECSS-Q-70-36A, SPACE PRODUCT ASSURANCE, MATERIAL SELECTION FOR CONTROLLING STRESS-CORROSION CRACKING (20 JAN 1998)

ECSS-Q-70-36A, SPACE PRODUCT ASSURANCE, MATERIAL SELECTION FOR CONTROLLING STRESS-CORROSION CRACKING (20 JAN 1998)., This document sets forth the criteria to be used in the selection of materials for spacecraft and associated equipment and facilities so that failure resulting from stress-corrosion will be prevented. Three categories ofmaterials are listed in Tables 1, 2 and 3 of this document. They represent metal alloys with a high, moderate and low resistance to stress-cor- rosion cracking. The stress-corrosion susceptibility of alloys included in this document was deter- mined at ambient temperature D by means of laboratory tests in which specimens were either sprayed with salt water or periodically immersed and withdrawn; D by exposing specimens in sea coast or mild industrial environments; D by subjecting fabricated hardware to service conditions. Use of the criteria established herein should, therefore, be limited to designs for service involving similar exposure conditions.