A20 Austenitic chromium-nickel steels 1 A20 Austenitic chromium-nickel steels H ANS BARKHOLT , Kronberg, Germany GUNDULA JÄNSCH -K AISER , DECHEMA e. V., Germany S. G ORSKI , DECHEMA e. V., Germany 1.References . . . . . . . . . . . . . . . . . . . . . 2 The austenitic steels with about 18 % chro- mium and 8 to 10 % nickel, with or with- out titanium or niobium, for example DIN-Mat. No. 1.4300, 1