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January 7, 2019
ABSTRACT The corrosion resistances of enamel-coated steel pipe in 3.5 wt% NaCl solution was evaluated and compared with those of epoxy-coated pipe using open-circuit potential, linear po- larization resistance, and electrochemical impedance spectros- copy tests. T-001c enamel slurry and GP2118 enamel powder were sprayed to steel pipe in wet and […]
January 4, 2019
In recent years, with the decreasing number of easily exploitable oil and gas wells, it has become necessary for oil and gas wells to go deeper on both underground and underwater. And, tubing and casing strings are subjected to higher temperature and higher pressure in these wells, which would probably […]
January 4, 2019
Properties of Galvanized Steel Pipe Welds Galvanizing has been used to protect iron and steel from rusting for over a hundred years in places as diverse as the wire rope used for the suspension cables on the Brooklyn Bridge to gutters on houses. Galvanizing is simply coating of zinc over […]
January 2, 2019
Why not galvanizing after welding Why not avoid the whole problem of welding galvanized steel pipe sheets after galvanizing? After all, steel products are always galvanized after manufacture, because there has been no practical way to restore the galvanizing effect after welding. Zinc plating after manufacture is still conventional, but […]
December 30, 2018
Carbon Steel Pipe (Black and Galvanized) Water Transmission Pipe Pipe Standard : ASTM A53 Grade A – Sch 40 NOMINAL SIZE OUTSIDE DIAMETER WALL THICKNESS LENGTH WEIGHT BUNDLING maximum minimum inch inch mm inch mm inch mm inch mm meter ft kg/m kg/ft lb/ft pieces 1 1.315 33.4 1.331 33.7 […]
December 29, 2018
Schedule of Requirements IFT NO. PD.2312/397-MECD/MEZ/PIPE.Materials: Line Pipe. Item No. Description of Goods Qnty Unit A. Line Pipe. As per detailed technical specifications at Section 7. Size and quantity are as follows: A.1 DN 20″ x WT 7.9 mm API 5L Grade B, ERW 450 Meter. A.2 DN […]
December 26, 2018
M. N. Ervina Efzan*, S. Kesahvanveraragu, J. Emerson 1.0 INTRODUCTION 1.1 Offshore Pipeline Material Pipelines in offshore platform are made up of various types of materials. Selection of material relies upon certain considerations such as cost, functional requirement, operating conditions of pressure and temperature, corrosion rate and so forth [1-2]. Since there […]
December 15, 2018
ASTM A269 316L stainless tube covers nominal-wall-thickness, seamless and welded austenitic steel tubing for general corrosion-resisting and low- or high-temperature service. The steel tube shall be furnished in the heat-treated condition, and shall also conform to the chemical composition requirement, and different mechanical tests that includes flaring test, flange test, […]
December 14, 2018
ASTM A179 / ASME SA179, ASTM A192 / ASME SA192 covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for heat exchangers, condensers, superheater and boiler, and similar heat transfer apparatus. The tubes are frequently ordered as follows: Chemical compositions C Si Mn P S 0.06%-0.18% ≤0.25% 0.27%-0.63% ≤0.035% ≤0.035% […]