Metal treatment – Compositions – Heat treating
Patent
1978-11-13
1979-09-25
Stallard, W.
Metal treatment
Compositions
Heat treating
148 12EA, C21D 908
Patent
active
041689941
ABSTRACT:
Homogenization of nickel-chromium-iron alloy tubing to accomplish carbon stabilization is effected before the tubing is cold worked to its final length by subjecting the alloy to two successive short and closely controlled periods of annealing in a batch-type annealing furnace.
REFERENCES:
patent: 3844846 (1974-10-01), Friske et al.
patent: 4070209 (1978-01-01), Usui
Combustion Engineering Inc.
Lang Wayne H.
Stallard W.
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