Rivet-Hole Cracks in a Steam Boiler
A water tube boiler with two headers and 15.5 atm working pressure became leaky in the lower part due to the formation of cracks in the rivet-hole edges. The boiler plate of 20 mm thickness was a rimming steel with 0.05% C, traces of Si, 0.38% Mn, 0.027% P, 0.035% S, and 0.08% Cu. The mean value of the yield point was 24 (24) kg/sq mm, the tensile strength 39 (38) kg/sq mm, the elongation at fracture, d10, 26 (24)%, the necking at fracture 71 (66)% and notch impact value 11.5 (9.4) kgm/sq cm (the values in brackets are...
Friedrich Karl Naumann, Ferdinand Spies, Rivet-Hole Cracks in a Steam Boiler, ASM Failure Analysis Case Histories: Rail and Rolling Stock, ASM International, 2019, https://doi.org/10.31399/asm.fach.rail.c9001175
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