A.2 Properties of metals in ASTM test program
The mechanical properties of the metals used in the ASTM Interlaboratory test program10 are summarized in Table A-2. For all metals, with the exception of Stellite 6B, specimens manufactured from sheet and rod have been used in the erosion tests. For stainless steel AISI 316 hardness values ranging from 153 to 205 HV (Hardness Vickers) have been used. The measured incubation periods of AISI 316 have been corrected with a special procedure9 to a hardness of 170 HV.
Austenitic stainless steel AISI 316 contains (in wt%) 17Cr-10Ni-2Mo-0.02-0.04C with a thermodynamically stable austenite structure19. Stellite 6B® is a Co-alloy containing (in wt%) 28Cr, 4.5W, and 1.1C, and normally supplied as mill-annealed sheet20. Aluminium 6061-T6 is an Al-Mg-Si alloy which has been heat treated for precipitation hardening. Aluminium 1100-O is an unalloyed annealed soft aluminium21.