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.

Method for producing a corrugated pipe having a smooth lining of foam plastic

Abstract: A smooth, plastic-lined corrugated pipe having an intermediate layer of plastic foam. The pipe is made by internally coating a corrugated pipe with a foaming mixture and pressing an expandable cylinder of plastic sheet liner against the foaming mixture until the foam solidifies. An expandable mandrel apparatus presses the plastic sheet liner into position.

The effect of processing parameters on the propensity for central fracturing in piercing

Abstract: Successful competition in the seamless tubular products market demands improvements in surface and dimensional quality in products from seamless pipe mills. It is reported that pass design, piercer setup and operating parameters have critical effects on both dimensional and surface quality. Defects which form during the piercing process are the result of these mechanical parameters (which control the localized stress states) in combination with metallurgical factors (which determine the material’s resistance to fracture by aggravating stresses). Understanding the detrimental effects of inclusions led to the development of cleaner materials, but economically feasible operations in this direction have been exhausted. Because of this, attention is directed to improvement of deformation limits by control of mechanical processing factors, such as piercer setup and point/pass design. Control of these parameters leads to an optimum pass design that produces conditions favorable not only for enhanced deformation before fracture, but also for energy and power requirements.

Apparatus for electrolytic galvanizing of sheets

Abstract: This invention relates to an apparatus for treating flat rolled metal products, sheets, strip or plates, in one or more liquid baths in which said flat rolled products, disposed in a vertical plane are passed horizontally through cells or tanks containing the treating liquid. Important features...

Thermosetting organic coated metallic sheet

Abstract: Sheet metal having a partially cured organic thermosetting coating thereon and method of forming drawn and ironed seamless containers therefrom.

The effect of tin on the toughness of some common steels

Abstract: The primary purpose of this investigation was to determine the effect of tin on the toughness of six common plate, structural, linepipe, and rail steels containing zero to 0.25 pct Sn. To put the changes in toughness into better perspective, the effect of tin on tensile properties was also noted. The effects of tin on Charpy transition temperatures and shelf energy are dependent on steel grade or a combination of grade and heat treatment; for example, an increase of 0.01 pct Sn increased the 20 J transition temperature by zero to 2.3°C. Contrary to the case for transition temperature, the effects of tin on tensile properties do not depend on steel grade or a combination of grade and heat treatment. The tensile effects in the present study were found to be consistent with those noted in previous literature cited in the paper. A mechanism to explain the effect of tin on toughness is considered.