Atmospheric corrosion

"Standard Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare" covers the chemical and mechanical requirements of hexagon and square-head zinc-coated steel bolts and atmospheric corrosion-resistant bolts, in nominal thread diameters of 1⁄2, 5⁄8, 3⁄4 , 7⁄8 and 1 in. for use in the construction of transmission towers, substations, and similar steel structures.

7p hth_hn_vn 10-12-2023 5 4   Download

"Standard Specification for High-Strength Low-Alloy Structural Steel" covers high-strength low-alloy structural steel shapes, plates, and bars for welded, riveted, or bolted construction intended primarily for use as structural members where savings in weight [mass] or added durability are important. The atmospheric corrosion resistance of the steel in most environments is substantially better than that of carbon structural steels with or without copper addition. When properly exposed to the atmosphere, this steel can be used bare (unpainted) for many applications.

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This specification covers high-strength low-alloy structural steel shapes, plates, and bars for welded, riveted, or bolted construction but intended primarily for use in welded bridges and buildings where savings in weight or added durability are important. The atmospheric corrosion resistance of this steel in most environments is substantially better than that of carbon structural steels with or without copper addition (see Note 1). When properly exposed to the atmosphere, this steel is suitable for many applications in the bare (unpainted) condition.

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This specification covers high-strength, low-alloy, hotand cold-rolled sheet and strip in cut lengths or coils, intended for use in structural and miscellaneous purposes, where savings in weight or added durability are important. These steels have enhanced atmospheric corrosion resistance and are supplied in two types: Type 2 contains 0.20 % minimum copper based on cast or heat analysis (0.18 % minimum Cu for product check).

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This specification covers high-strength low-alloy nickel, copper, phosphorus steel H-piles and sheet piling of structural quality for use in the construction of dock walls, sea walls, bulkheads, excavations, and like applications in marine environments.

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This specification covers carbon and high-strength lowalloy steel structural shapes, plates, and bars and quenched and tempered alloy steel for structural plates intended for use in bridges. Seven grades are available in four yield strength follows.

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Part 1 of ebook "Fundamentals of corrosion: Mechanisms, causes, and preventative methods" provides readers with contents including: Chapter 1 - Introduction; Chapter 2 - Corrosion mechanisms; Chapter 3 - Forms of metallic corrosion; Chapter 4 - Atmospheric corrosion; Chapter 5 - Corrosion of polymer (plastic) materials; Chapter 6 - Corrosion of linings;...

221p hanlinhchi 29-08-2023 5 2   Download

Continued part 1, part 2 of ebook "Applied chemistry: A textbook for engineers and technologists" provide readers with content about: corrosion; polymers and plastics; adhesives and adhesion; paint and coatings; explosives; water; carbon-based polymers, activated carbons; cement, ceramics, and composites;... Please refer to the part 2 of ebook for details!

191p langmongnhu 14-12-2022 15 3   Download

This standard issued under the fixed designation A 709/A 709M, the number immediately following the designation indicates the year of original adoption or, in the case of revision the year of last revision. A number in parenthese indicates the year of last reapproval.

8p maryland93 14-10-2020 63 3   Download

The presence of organic sulfur-containing oil in the environment is harmful to animals and human health. The combustion of these compounds in fossil fuels tends to release sulfur dioxide in the atmosphere, which leads to acid rain, corrosion, damage to crops, and an array of other problems. The process of biodesulfurization rationally exploits the ability of certain microorganisms in the removal of sulfur prior to fuel burning, without loss of calorific value.

17p angicungduoc6 20-07-2020 13 1   Download

Coating systems based on zinc rich primer and fluoropolymer top coat were exposed for 8 years at different atmospheric stations in Vietnam: Ha Noi, Ha Long and Nha Trang. For comparison the coating system with zinc rich primer and polyurethane topcoat was also tested. The degradations of coating systems were evaluated by gloss measurement and electrochemical impedance spectroscopy.

7p abcxyz123_02 18-03-2020 10 1   Download

The results of corrosion survey for stainless steel tanks used in water storage at various areas are presented. More severe corrosion is observed for the area with higher airborne salinity. Damages are revealed at both outer and inner surfaces for tanks made of Type 304 and 201 steels exposed in coastal conditions. Corrosion products examined by visual inspection and SEM-EDX technique showed relatively distinctive characteristics for the outer and inner tank surfaces which are attributed to different corrosion mechanisms initiated by corrosive chloride accumulated on steel surfaces.

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Bài báo trình bày tóm tắt các khái niệm cơ bản về quá trình ăn mòn khí quyển kim loại và ảnh hưởng của các yếu tố khí hậu, môi trường đến quá trình ăn mòn khí quyển như nhiệt độ, độ ẩm không khí, thời gian lưu ẩm bề mặt, các tạp chất và nhiễm bẩn khí quyển (độ muối khí quyển - hàm lượng ion Cl- , hàm lượng khí SO2).

29p ketaucho 20-11-2019 85 6   Download

The purpose of thesis: Research on the influence of climatic and environmental parameters to the formation, structure and properties of corrosion products formed on the WS surface in different climatic regions of Vietnam. Research on the mechanism of forming protective rust layer on WS and corrosion resistance of WS in tropical climate of Vietnam.

32p xacxuoc4321 09-07-2019 17 4   Download

CHAPTER 5 NICKEL AND ITS ALLOYS T. H. Bassford Jim Hosier Inco Alloys International, Inc. Huntington, West Virginia 5.1 INTRODUCTION 5.2 NICKELALLOYS 5.2.1 Classification of Alloys 5.2.2 Discussion and Applications 5.3 CORROSION 5.4 FABRICATION 5.4.1 Resistance to Deformation 5.4.2 Strain Hardening 71 72 72 72 80 82 82 82 5.5 HEATTREATMENT 5.5.1 Reducing Atmosphere 5.5.2 Prepared Atmosphere 5.6 WELDING 5.7 MACHINING 5.8 CLOSURE 84 84 85 86 86 88 5.1 INTRODUCTION Nickel, the 24th element in abundance, has an average content of 0.016% in the outer 10 miles of the earth's crust.

19p hadalabo 29-09-2010 68 7   Download