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National Development and Reform Commission approves several cemented carbide industry standards
Introduction
In recent years, China has actively advanced the standardization of the hard alloy industry in accordance with the overall principle of strengthening the work of industry standardization and promoting the transformation of industrial structure and quality. China National Development ......
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Gray iron castings (abstract) GB 9439-88
Abstract
GB 9439-88 is a national standard for gray cast iron parts. Gray cast iron is a type of cast iron which has an even surface and a dense microstructure with excellent mechanical properties and wear resistance. This standard specifies the requirements, test methods, acceptance criteria, ma......
Alloy structural steel bars for steam turbine bolts (YB/T158-1999)
Turbine bolt alloy steel bar (YB/T158-1999) Introduction
Turbine bolt alloy steel bar, also known as turbine rotor head bolt steel bar, is an important material widely used in the power industry. It is mainly used as a connecting bolt in turbines, generators and other high-speed and heavy-duty ro......
Evolution of GB/T 1220 Standard for Stainless Steel Bars
GB/T 1220 Standard Evolution of Stainless Steel Bars
The history of the development of a variety of industry standards and regulations, including those related to stainless steel bars (SSBs), began nearly two decades ago, when the standard of GB/T 1220 was initiated and announced in 1998. The sta......
GB/T 13201--91 Technical Method for Establishing Local Air Pollutant Emission Standards
GB/T 13201--91 Technical Method for Establishing Local Atmospheric Pollutant Emission Standards
This paper focuses on the technical method formulated in the standard of GB/T 13201--91, designed to establish local atmospheric pollutant emission standards. This standard specifies the steps and proc......
Russian and European steel scrap standards
，标题为：Russia and European Scrap Steel Standards
Introduction
Scrap steel is an important resource in the industrial world today. It is used not only to make steel products, but also to manufacture parts and components for various machinery, vehicles, and tools. Steel scrap comprises a wide var......
International Standard for Ferroalloys - Ferrovanadium
Vanadium iron alloy international standard-vanadium iron
Vanadium iron, otherwise known as iron-vanadium alloy, is a ferrous alloy containing both vanadium and iron in various proportions. When the iron and vanadium are in combination, it creates an extremely strong, hard and elastic alloy. Vana......
China's current heat treatment standards
Introduction
Heat treatment is a process used in the manufacturing of metal products and components for the purpose of changing their physical and sometimes chemical properties. Heat treatment is used in a wide range of industries, including automotive, aviation, electrical and medical manufactu......
Introduction of steel varieties and specifications for steel structure
Steel Structures
Steel is one of the most important and versatile materials used in construction and engineering. Its strength, versatility, durability and affordability make it the ideal choice for a variety of structural applications. When choosing a steel structure for a specific project, ther......
General Standard for Alloy Structural Plates, Wires, Tubes, and Forgings
Standard for Alloy Structural Steel Plates, Wires, Tubes and Forging Parts
This Standard defines relevant classification of alloy structural steel plates, wires, tubes and forging parts (hereinafter referred to as “structural steel”). The sizes and shapes of products are subject to the size and......
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