エントリー - エネルギースチール

パイプライン保護コーティング：表面処理基準

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Introduction Surface preparation is critical in industries like oil and gas, marine, and infrastructure to ensure that protective coatings adhere correctly and perform well over time. Several international standards govern the level of surface cleanliness required before applying coatings. This blog focuses on the commonly referenced Surface Preparation Standards: ISO 8501-1 Sa 2½, SSPC-SP 10, NACE No. 2, and SIS 05 59 00 Sa 2½. 1. ISO 8501-1 Sa 2½: Surface Preparation Standards Objective: ISO 8501-1 is an internationally recognized standard that specifies the degrees of cleanliness for steel surfaces after blast cleaning. Sa 2½ refers to a comprehensive blast cleaning that removes nearly all rust, mill scale, and old […]

API 仕様 5B と ASME B1.20.1

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Introduction Regarding threading and connection standards in the oil, gas, and industrial sectors, API Spec 5B vs ASME B1.20.1 are two critical references. These standards govern the specifications for threads on pipes, tubing, and fittings, ensuring threaded connections’ integrity, compatibility, and performance. Although both serve the same general purpose of standardizing threads, they cater to different applications and industries with distinct technical requirements and scopes. What Are API Spec 5B and ASME B1.20.1? API Spec 5B is a standard published by the American Petroleum Institute (API), which specifies the threading, gauging, and testing procedures for threaded connections on casing, tubing, and line pipe used in the oil and gas industry. […]

LNGタンクの設計、材料の選択、および用途に関する詳細ガイド

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Introduction Liquefied Natural Gas (LNG) is an essential component of the global energy infrastructure, stored at cryogenic temperatures to facilitate efficient transportation and storage. LNG tank design and material selection are critical to ensure their safety, durability, and performance. In addition to exploring tank design and materials, it’s essential to understand the various applications of LNG tanks to fully appreciate their role in the energy sector. Understanding LNG Tank Design LNG tanks are designed to hold natural gas in liquid form at temperatures around -162°C (-260°F). They must accommodate extreme cold, pressure variations, and potential thermal stresses. Here’s a detailed look at the primary tank types and critical design considerations: […]

NACE MR0175 と NACE MR0103 の違いは何ですか?

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Introduction In industries like oil and gas, where equipment and infrastructure are routinely exposed to harsh environments, selecting materials that can withstand corrosive conditions is crucial. Two essential standards that guide material selection for environments containing hydrogen sulfide (H₂S) are NACE MR0175 and NACE MR0103. While both standards aim to prevent sulfide stress cracking (SSC) and other hydrogen-induced damage, they are designed for different applications and environments. This blog provides a comprehensive overview of the differences between these two essential standards. Introduction to NACE Standards NACE International, now part of the Association for Materials Protection and Performance (AMPP), developed NACE MR0175 and NACE MR0103 to address the challenges posed by […]

環境クラッキング: HB、HIC、SWC、SOHIC、SSC、SZC、HSC、HE、SCC

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Introduction In industries where materials are subjected to harsh environments—such as oil and gas, chemical processing, and power generation—understanding and preventing environmental cracking is critical. These types of cracking can lead to catastrophic failures, costly repairs, and significant safety risks. This blog post will provide a detailed and professional overview of the various forms of environmental cracking like HB, HIC, SWC, SOHIC, SSC, SZC, HSC, HE, and SCC, including their recognition, underlying mechanisms, and strategies for prevention. 1. Hydrogen Blistering (HB) Recognition: Hydrogen blistering is characterized by the formation of blisters or bulges on the surface of a material. These blisters result from hydrogen atoms penetrating the material and accumulating […]

石油貯蔵タンクの鋼板枚数の計算方法

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Introduction Building oil storage tanks involves precise planning and accurate calculations to ensure structural integrity, safety, and cost-effectiveness. For tanks constructed using carbon steel plates, determining the quantity and arrangement of these plates is crucial. In this blog, we will explore calculating the number of steel plates for oil storage tanks, using a specific example to illustrate the steps involved. Project Specifications Customer Requirements: Plate Thickness Options: 6mm, 8mm, and 10mm carbon steel plates Plate Dimensions: Width: 2200mm, Length: 6000mm Tank Specifications: Number of Tanks: 3 Individual Tank Volume: 3,000 cubic meters Height: 12 meters Diameter: 15.286 meters Steps to Calculate Steel Plate Quantities for Three Cylindrical Oil Storage Tanks […]