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.

Optimum Fatigue Crack Resistance

Abstract: : An evaluation is made of the influence of mechanical properties on fatigue-crack growth rate. Data representing 4340 and modified 4330 steel show that for levels of the stress intensity factor K below about 40 ksi sq root of (in.) mechanical properties have little influence on growth rate. However, at higher K-levels both the product of Young's modulus, yield strength and fracture toughness, and the product of Young's modulus, tensile strength and true strain at fracture seem to be reasonable indices of crack growth resistance. For K-levels above 40 ksi sq root of (in.) minimum fatigue-crack growth rate is provided by tempering 4340 and modified 4330 at temperatures of about 1000 and 1100 F, respectively. (Author)

Portable instrument for recording electrical load current and operating duration

Abstract: Self-contained portable recording instrument is particularly useful at field sites for recording the magnitude of both welding current and operating duration. A second embodiment is adapted to record the magnitude of welding current, voltage and operating duration. Strip chart records provide analysts with means for determining operator incentive pay when working on field assignments. Records enable determining the quality and duration of actual welds, as well as the occurrence of operator-simulated welding time.

Fatigue and corrosion resistant flexible wire strand assembly

Abstract: The end of a wire strand adjacent to a hot metal or resin type end fitting is relubricated after application of the fitting to the strand by injecting lubricant through a thin tube extending between the wires of the strand in the hot metal or resin portion of the fitting from the surface of the hot metal or resin to the neck of the fitting.