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.

One-probe method and apparatus for detecting, correlating, and classifying defects in test members

Abstract: Nondestructive test apparatus detects both straight and skewed defects in test members such as steel bars and billets having either curved or flat surfaces. Detecting means, including a probe adapted to scan a surface of said member cyclically during relative lengthwise movement therewith, produces electrical signals representative of defects detected in said member. Electrical signals cause defect pulses to be produced and these pulses are coordinated with probe position pulses in electronic circuits which classify the defects according to location, or location in combination with level of defect severity and/or length, in a longitudinally extending section of the test member. A signal correlator may be added to reject noise and false defect pulses as well as to accommodate skewed defects when either or both such situations are encountered. The finally processed defect pulses are utilized, for example, to activate reworkable or rejectable defect markers downstream of the probe over a section of the scanned surface where the defects occurred in said member.

Titanium and vanadium dual-phase steel and method of manufacture

Abstract: This invention is directed to a method and to the resulting product, wherein said product is a low-carbon dual phase steel having a combination of high strength, good ductility and a YS/TS ratio ≦0.6. The method includes the steps of (1) preparing an Al-killed steel consisting essentially of 0.05 to 0.15 wt. % C, up to 2.0 wt. % Mn, up to 1.0 wt. % Si, 0.03 to 0.15 wt. % V and a sufficient amount of titanium to "getter" the excess sulfur and nitrogen, with the balance essentially being iron, where the titanium addition should be at least equal to the atomic percent of the sulfur plus nitrogen, but no more than about 1.6 times, (2) intercritically annealing such steel within the α+γ temperature range, and (3) cooling to room temperature.

Composition and method for producing an alloy steel and a product therefrom for structural applications

Abstract: A high strength low-alloy steel is subjected to a controlled rolling and accelerated cooling process to obtain minimum physical properties while achieving improved mill productivity. The alloy chemistry utilizes a low silicon, carbon, niobium, vanadium, titanium-containing steel composition which is hot worked and accelerated cooled under controlled conditions. The chemistry, controlled rolling and accelerated cooling allows for significant increase in the finishing rolling temperature thereby permitting high rolling output. The alloy chemistry includes a low-carbon grade which also has improved castability, formability and weldability.