Still using a 1930s pressure canner (from National Pressure Cooker Co.) that's been used by my family for 5 generationsLeonardTimber t1_j1ikdjk wrote
Reply to comment by nolanhoff in Still using a 1930s pressure canner (from National Pressure Cooker Co.) that's been used by my family for 5 generations by ubermaker77
Small nit pick - ‘ferrous’ just means it has iron in it and does not guarantee infinite cycle life. Cast iron or pig iron, for example, have a cycle limit.
For some reason, the inclusion of Carbon with Iron is what makes a material with infinite cycle life under a certain load, so Steels are generally the only materials with infinite cycle life at low cycle loads.
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