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.

Effects of Widmanstätten ferrite on the mechanical properties of a 0.2 pct C-0.7 pct Mn steel

Abstract: Laboratory melted and rolled C-Mn steel plates were austenitized at either 925 °C or 1150 °C to produce nominal austenite grain sizes of 60 and 200 µm, resspectively The plates were then cooled at rates in the range of about 2 °C/min to 400 °C/min to produce mixed polygonal ferrite/Widmanstatten ferrite/pearlite microstructures The percentage of WidmanstAtten structure (a Widmanstatten ferrite/pearlite aggregate) increases with increasing prior austenite grain size and cooling rate Both yield strength and impact toughness increase with decreasing austenite grain size and increasing cooling rate This simultaneous improvement in strength and toughness is attributed to overall refinement of both the polygonal ferrite and WidmanstAtten structure Both yield and tensile strength increase with an increase in the volume fraction of WidmanstAtten ferrite and a reduction in ferrite grain size In contrast, the toughness level achieved in these polygonal ferrite/WidmanstAtten ferrite/pearlite microstructures depends largely on the ferrite grain size; the finer the grain size, the better the toughness

Method for protecting metal H-piling in underwater environments and protected H-piling

Abstract: A metal H-piling is protected from corrosion in underwater and semi-underwater locations by the application of a coating of a corrosion resistant covering consisting of an outer shield of stiff plastic, an inner layer of a corrosion inhibiting material and a series of expanded plastic clampimg members having an internal shape corresponding substantially to the outer shape and dimensions of the H-piling. The expanded plastic clamping members serve to hold the outer plastic shields, which are preferably in the shape of half sections of the outer dimensions of the H-pile, tightly against the outer surfaces of the H-pile. The clamps, which are preferably in the form of two interlocking sections may be held together by corrosion resistant strapping.

A coating composition for steel product, a coated steel product, and a steel product coating method

Abstract: A method of coating of steel products such as plate and sheet using an aluminum-zinc coating alloy includes modifying the coating bath with a particulate compound constituent in effective amounts to decrease the spangle facet size of the coated product, improve tension bend rust stain performance, improve coated surface appearance when brushed, and coated product paintability. Constituents include borides such as titanium boride and aluminum borides, carbides such as titanium carbide, and aluminides such as titanium aluminide. The method produces a coated steel product that does not require temper rolling for painting.

Production and utilization of synthesis gas

Abstract: In a method for producing high pressure synthesis gas from an industrial gas containing carbon monoxide, carbon dioxide is first removed from the gas stream and the stream is partially liquefied in a cryogenic recovery plant. Hydrogen and at least part of the nitrogen are separated from the liquefied gas by distillation, and the remaining liquid carbon monoxide is liquid pumped to from 500 to about 10,000 psia. Following pressurization, the liquid carbon monoxide is heated to above its boiling point, while controlling the pressure to produce a vaporized high pressure gaseous feed, also at from about 50010,000 psia. Thereafter, the high pressure vaporized carbon monoxide is reacted with steam at high pressure in a conventional carbon monoxide shift reaction. The resulting high pressure hydrogen can be utilized in a process for the synthesis of methanol, ammonia, and the like.