Fin stock material for use in plate fin heat exchanger adapted f

Details Fin stock material for use in plate fin heat exchanger adapted f Fin stock material for use in plate fin heat exchanger adapted f

1985-03-07

1987-06-16

Dean, R.

Alloys or metallic compositions

Aluminum base

Copper containing

420534, C22C 2100

Patent

active

046735518

ABSTRACT:
Fin stock materials adapted for use in superhigh pressure service heat exchanger fabricated by brazing are made of aluminum alloys consisting essentially of, in weight percentages, 0.6 to 1.5% of Mn, 0.1 to 1.0% of Cu, 0.1 to 0.75% of Mg, and 0.05 to less than 0.30% of Si, and the balance being aluminum and incidental impurities, the Fe in said impurities being controlled up to 0.8%. The aluminum alloy fin stock materials contain optionally at least one component selected from the group consisting of 0.05 to 0.25% of Zr, 0.01 to 0.25% of Ti, 0.05 to 0.25% of Cr and 0.01 to 0.25% of V. The fin stock materials have a combination of advantageous properties, particularly a high prevention effect of excessive silicon diffusion of brazing materials into the fins, good strength and formability, whereby give good utility particularly in plate fin heat exchangers for use in superhigh pressure applications.

REFERENCES:
patent: 3219492 (1965-11-01), Anderson et al.
patent: 4039298 (1977-08-01), Anthony et al.
patent: 4167410 (1979-09-01), Anthony et al.

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