Premature Failure of a Type 309 Stainless Steel Pan for a Lead Bath
Severely reduced wall thickness was encountered at the liquid line of a lead-bath pan that was used in a continuous strip or wire oil-tempering unit. Replacement of the pan was necessary after six months of service. The pan, 6.9 m (22.5 ft) long, 0.6 m (2 ft) wide, and 38 cm (15 in.) deep with a 2.5-cm (1-in.) wall thickness, was a type 309 stainless steel weldment. Operating temperatures of the lead bath in the pan ranged from 805 deg C (1480 deg F) at the entry end to 845 deg C (1550 deg F) at the exit end....
Premature Failure of a Type 309 Stainless Steel Pan for a Lead Bath, ASM Failure Analysis Case Histories: Steelmaking and Thermal Processing Equipment, ASM International, 2019, https://doi.org/10.31399/asm.fach.steel.c0046915
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