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Per a Parker brochure introducing this nib material on the Parker 51 model Octanium is an alloy composed of eight different metals ,each chosen for certain attributes. gnAM}
Strenght and hardness H<^*V8J 'w
40℅Cobalt gH{X?
15℅Nickel ]Bpdb'
20℅Chromium jGM+
High resilience >g ):xi3qK
7℅Molybdenum XDtr{r6z
2℅Manganese ||{V*"+\
15℅Iron(approximately) Xp(e/QB
Additiond strength against all stresses and chimatic conditions KJ7[DN'(
0.04℅Beryllium 3'
HtT
0.15℅Carbon