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知っておくべきことすべて: スーパー 13Cr

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1. Introduction and Overview Super 13Cr is a martensitic stainless steel alloy known for its exceptional mechanical strength and moderate corrosion resistance, making it ideal for demanding environments. Originally developed for oil and gas applications, Super 13Cr offers a cost-effective alternative to higher alloyed materials, especially in moderately corrosive environments where chloride-induced stress corrosion cracking (SCC) is a concern. Due to its enhanced mechanical properties and improved corrosion resistance compared to conventional 13Cr stainless steel, Super 13Cr is widely used in industries like oil and gas, chemical processing, pulp and paper, marine and offshore, air pollution control, and power generation. 2. Available Super 13Cr Products and Specifications Super 13Cr is […]

S355J0H vs S355J2H: 中空構造セクションの知識

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Introduction When working in construction, particularly in infrastructure projects, selecting the right steel grade for structural hollow sections is critical. Two commonly specified grades are S355J0H and S355J2H, both used extensively in structural hollow sections such as Circular Hollow Sections (CHS), Square Hollow Sections (SHS), and Rectangular Hollow Sections (RHS). These grades are defined under EN 10219 (Cold-Formed Welded Structural Hollow Sections of Non-Alloy and Fine Grain Steels) and EN 10210 (Hot-Finished Structural Hollow Sections of Non-Alloy and Fine Grain Steels). This article aims to provide a detailed, expert comparison of S355J0H vs S355J2H, offering guidance on their properties, applications, and suitability for infrastructure construction projects. Understanding S355 Steel Grades […]

知っておくべきことすべて: ASME B36.10M と ASME B36.19M

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Introduction This guide will explore the key differences between ASME B36.10 M and ASME B36.19 M and offer clarity on their applications in the oil and gas field. Understanding these distinctions can help engineers, procurement teams, and project managers make informed decisions, ensuring optimal material selection and compliance with industry standards. In the oil and gas industry, choosing the correct piping standard is crucial for ensuring pipeline systems’ safety, durability, and efficiency. Among the widely recognized standards, ASME B36.10M and ASME B36.19M are essential references for specifying the dimensions of pipes used in industrial applications. While both standards relate to pipe dimensions, they differ in scope, materials, and intended applications. […]

知っておくべきことすべて: パイプライン溶接における熱影響部

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Introduction In pipeline welding, the integrity of welded joints is crucial to ensuring the long-term safety, durability, and efficiency of the pipeline infrastructure. One critical aspect of this process that is often overlooked is the Heat-Affected Zone (HAZ)—the area of the base metal that is altered due to the heat applied during welding. While the HAZ doesn’t melt during the process, the heat can still change the microstructure of the material, impacting its mechanical properties and performance. This blog aims to offer a deep understanding of the Heat-Affected Zone, including what it is, why it matters in pipeline welding, and how to mitigate its potential negative impacts. Our goal is […]

プロジェクトに適したものを選ぶ方法: 溶接電極

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Introduction Welding is a critical process in many industries, especially in the fabrication and joining of metal materials like steel pipes, plates, fittings, flanges, and valves. The success of any welding operation depends heavily on choosing the right welding electrodes. Selecting the appropriate electrode ensures strong, durable welds and reduces the risk of defects, which can compromise the integrity of the welded structure. This guideline aims to provide a comprehensive overview of the Welding Electrodes, offering valuable insights and solutions for common user concerns. Understanding Welding Electrodes Welding electrodes, often referred to as welding rods, serve as the filler material used in joining metals. Electrodes are classified into two categories: […]

適切なコーティングの選択: 3LPE コーティングと FBE コーティング

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Introduction In the oil, gas, and water transmission industries, pipeline coatings play a crucial role in ensuring the long-term performance and protection of buried or submerged pipelines. Among the most widely used protective coatings are 3LPE (Three-Layer Polyethylene Coating) and FBE (Fusion Bonded Epoxy Coating). Both provide corrosion resistance and mechanical protection, but they offer distinct advantages depending on the application environment. Understanding their differences is essential for making an informed decision in pipeline coating selection. 3LPE coating vs FBE coating, let’s explore in-depth. 1. Overview of 3LPE Coating vs FBE Coating 3LPE Coating (Three-Layer Polyethylene Coating) 3LPE is a multi-layered protective system that combines different materials to create an […]