Bethlehem Steel

About: Bethlehem Steel is a based out in . It is known for research contribution in the topics: Coating & Corrosion. The organization has 1529 authors who have published 1559 publications receiving 19098 citations. The organization is also known as: Bethlehem Steel Corporation.

Improved J c in mechanically fabricated Nb 3 Al wires and ribbons

Abstract: Nb 3 Al wire which is essentially all A15 may be fabricated by powder or rod composite techniques, with subsequent reaction and ordering anneals. Several of the previously existing problems, including aluminum loss and Kirkendall porosity, have been identified and solved, and transverse-field critical current densities well into the 105amp/cm2range can be produced. However, reproducibility of the critical current density seems to depend on reproducible control of grain size, which we have not as yet achieved. The internal oxidation techniques which succeed for Nb 3 Sn do not appear to work for Nb 3 Al, for several reasons. A possible solution to the grain size problem, and to the problem of manufacture of Nb 3 Al in stabilized form, is to lower the initial reaction temperature. To achieve the latter we have reduced the scale of the elemental composite to a required diffusion distance of about 3000 A. before reaction. We were thus able to produce substantial quantities of A15 at 1100°C, but for several reasons (see text) we believe finer composites will be necessary.

Embossed cold rolled steel with improved corrosion resistance, paintability, and appearance

Abstract: An embossed cold rolled metal (e.g. steel) sheet for use in manufacturing appliances and method of making same wherein the surface attributes of the embossed sheet are optimized to improve corrosion resistance of the painted product, promote uniform paint coverage of the sheet surface, reduce paint consumption, enable repainting without loss of pattern crispness, and provide consistent and aesthetically pleasing appearance of the painted sheet. The embossed sheet has a plurality of plateaus and impressions defined therein in a manner such that the arithmetic average surface roughness (Ra) of the plateaus is from about 50 to 100 microinches, the maximum impression depths over a given area are from about 0.0025 to 0.0032 inches, the impression walls define maximum slopes of from about 8-17 degrees, and there are no sharp corners or ridges at the transition points between plateaus and impressions.

Deep hardening machinable aluminum killed high sulfur tool steel

Abstract: A low-alloy tool steel, for dies and molds, is deep hardening and highly machinable in the hardened condition. The steel is a water-quenched composition containing boron, sulfur, at least 0.020% aluminum, and a minimum of hardening agents including chromium and molybdenum. The method of producing such steel is disclosed.