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.

Flame detection monitoring system for detecting blockages in blast furnace injection paths

Abstract: A flame detection system for detecting blockage in oil injection paths into blast furnaces utilized in the manufacture of iron. The flame detection system, as designed and installed, monitors the amount of light seen through a blowpipe peephole and causes an alarm to be actuated when a voltage falls below a predetermined threshold thereby indicating that the amount of light being received by a photocell mounted at the peephole is at a low enough level to possibly indicate injection path or port clogging. Efficient calibration circuitry and techniques are also provided.

Resistance of High Strength Structural Steel to Environmental Stress Corrosion Cracking

Abstract: HIGH STRENGTH STRUCTURAL STEEL, ASTM A 514/517, TYPE J, WAS EVALUATED FOR SUSCEPTIBILITY TO ENVIRONMENTAL STRESS CORROSION CRACKING. PRECRACKED CANTILEVER BEAM SPECIMENS, PREPARED FROM 1-IN. PLATE AND LOADED UP TO 90 PERCENT OF THE AIR DETERMINED CRITICAL STRESS INTENSITY, WITHSTOOD 1000 H EXPOSURE TO 3.5 W/O NACL WITHOUT FAILURE. AT LOADS GREATER THAN 90 PERCENT OF THE LOAD REQUIRED TO CAUSE FAILURE IN AIR, FRACTURE OCCURS WITHOUT EVIDENCE OF STRESS CORROSION CRACKING. ADDITIONAL SPECIMENS PREPARED FROM BUTT-WELDED PLATE AND SUBJECTED TO SUSTAINED LOADS BEYOND YIELDING IN 4 POINT BENDING WERE ALTERNATELY IMMERSED IN 3.5 W/O NACL SOLUTION AND DRIED IN AIR FOR 10000 H WITHOUT CRACKING. THESE RESULTS INDICATE VIRTUAL IMMUNITY TO ENVIRONMENTAL STRESS CORROSION CRACKING FOR BOTH BASE PLATE AND WELDMENTS OF THIS QUENCHED AND TEMPERED STEEL.

Apparatus for pouring hot top ingots by weight

Abstract: Ingot yield is improved by changing teeming practice to pouring ingot body and hot top by weight rather than by volume to a mark on a hot top casting. Correct weight addition to the ingot hot top is calculated by a computerized weight-loss weigher system using either a value related to ingot mold body size or a precentage of body weight. Calculation is initiated either manually or automatically when hot metal level is detected at the bottom of the hot top casting.