Search Results for steel pipes

Fig. 6 Concept of centrifugal process for production of ceramic-lined steel pipes. Source: Ref 6 More

Fig. 1 Localized corrosion of stainless steel pipes from direct exposure to marine mists, compounded by plastic wraps More

Fig. 5 Stainless steel piping such as small-bore piping is designed to leak before break. A fatigue crack either initiates at the toe or the root of the weld. (a) Typical socket fitting with a fillet weld. (b) Micrograph of a cross section through a socket-welded joint showing fatigue crack More

Fig. 14 Tack weld in API 5L steel pipe. Pipe diameter, 150 mm (6 in.) wall thickness, 7 mm (0.28 in.). (a) Outside diameter view. (b) Inside diameter view More

Fig. 5 Stainless steel piping such as small-bore piping is designed to leak before it breaks. A fatigue crack initiates at either the toe or the root of the weld. (a) Typical socket fitting with a fillet weld. (b) Micrograph of a cross section through a socket-welded joint showing a fatigue More

Fig. 19 Thermal image of the heated end of a steel pipe that is 194 mm (7 5 8 in.) in diameter with a 19 mm ( 3 4 in.) wall using FluxManager technology. All temperatures in °F. Courtesy of Inductoheat, Inc. More

Fig. 5 Galvanic corrosion of steel pipe at brass fitting in humid marine atmosphere. Courtesy of R. Baboian, Texas Instruments, Inc. More

Fig. 4 Corroded type 316 stainless steel pipe from a black liquor evaporator. Two forms of attack are evident: preferential attack of the weld metal ferrite, suffered during HCl acid cleaning, and less severe attack in the sensitized HAZ center. Source: Ref 5 More

Fig. 19 Pitting and perforation on the outside of a carbon steel pipe More

Fig. 23 Bell-and-spigot joint used in an aqueduct of steel pipe. (a) The original design cracked because of poor welding technique and poor choice of metal. (b) Improved design showing modification of weld beads. Dimensions given in inches More

Fig. 2(a) Ruptured 305-mm (12-in.) carbon steel pipe, inadvertently installed in a 1.25Cr-0.5Mo circuit, that was severely damaged by hydrogen embrittlement. On-stream failure caused extensive fire damage. More

Fig. 2 Pitting corrosion of 316L stainless steel pipe. (a) View of pitting on the outside-diameter surface at the leak location. (b) View of the inside-diameter surface, where the pit size was larger at the leak location. There was a rusty discoloration along the bottom of the pipe. (c) Cross More

Fig. 46 Photograph of the inside of a stainless steel pipe with corrosion pits. The pipe was from a fire-sprinkler system for a car and passenger ferry boat. More

Fig. 9 Section of ASTM A 106 carbon steel pipe with wall severely damaged by hydrogen attack. The pipe failed after 15 months of service in hydrogen-rich gas at 34.5 MPa (5000 psig) and 320 °C (610 °F). (a) Overall view of failed pipe section. (b) Microstructure of hydrogen-attacked pipe near More

Fig. 16 Stress-corrosion cracks in steel pipe weld. (a) Magnetic particle enhancement of cracks in the weld of an equalizer line elbow section. Cracks were localized in the weld and HAZs. (b) Cracks initiated on the inside surface and propagated through the weld in a multiple branching mode. More

Fig. 27 AISI type 316 stainless steel piping that failed by SCC at welds. Cracking was caused by exposure to condensate containing chlorides leached from insulation. (a) View of piping assembly showing cracks on inner surface of cone. Dimensions given in inches. (b) Macrograph of an unetched More

Fig. 13 Section of ASTM A106 carbon steel pipe with wall severely damaged by hydrogen attack. The pipe failed after 15 months of service in hydrogen-rich gas at 34.5 MPa (5000 psig) and 320 °C (610 °F). (a) Overall view of failed pipe section. (b) Microstructure of hydrogen-attacked pipe near More

Fig. 15 Internal surface of carbon steel pipe section damaged by cavitation More

Fig. 19 Pitting and perforation on the outside of a carbon steel pipe More

Fig. 46 Photograph of the inside of a stainless steel pipe with corrosion pits. The pipe was from a fire-sprinkler system for a car and passenger ferry boat. More