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GB 12827-91 standard reference acetylene carbon black and identification method
Carbon black refers to black powdery or granular material, which is composed of many tiny particles with the average particle size of between 10 and 2000 nanometers. It is composedot many carbon atoms buthydrophobic in nature. Carbon black can be prepared by pyrolysis of hydrocarbons such as coal ......
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Ferrochrome nitride (YB/T5140-1993)
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Chromium nitride iron, also known as compound ferritic nitride (Cr + Fe3N), is a high-performance, wear-resistant material developed in the late 20th century. Its wear-resistant performance is about three times higher than that of a high-speed steel cutting tool, and its mechanical properties a......
Color marking of steel
Paint or coating color marking is an important part of steel marking and identification system.Steel is an important material used in the construction of bridges, buildings, machinery and many other products. Steel is produced in a variety of sizes and shapes and there is a great deal of variety t......
Carbon steel flux cored wire GB 10045-881
Carbon steel electrodes for arc welding
Carbon steel electrodes for arc welding are an important part of the welding industry. These electrodes are commonly used for a variety of structural fabrication, pressure vessel fabrication, and pipe fabrication welding processes.
These electrodes play a ......
Aluminum and aluminum alloy welding rod GB 3669-83
GB 3669-83 Alloy aluminum welding rods
Introduction
GB 3669-83 is an international standard of alloy aluminum welding rods. This standard is issued in 1983 and identifies the requirements for alloy aluminum welding rods for fusion welding. It plays an important role in all kinds of activities re......
Corrosion-resistant alloy rod GBn 272-88
Corrosion resistant alloys are materials that possess excellent chemical and physical properties that make them suitable for applications where chemical or environmental corrosion can occur. Corrosion resistant alloys are used worldwide in various engineering applications including oil and gas, of......
Steel bars for prestressed concrete (YB/T111-1997)
Abstract
This article introduces the technology of steel bars in pre-stressed concrete. It consists in three parts. The first part introduces the characteristics of steel bars in pre-stressed concrete, namely, the tensile strength, elastic modulus and so on. The second part gives the structure of......
Heat-resistant steel (GB/T1221-1992)
Heat-Resistant Steel
Heat-resistant steel is a type of alloy steel that is able to withstand high temperatures without sacrificing its mechanical properties. This type of steel is usually used in applications that require a great deal of heat, such as aircraft engines, nuclear reactors, and oil an......
Alloy structural steel (GB 3077-88) (6)
Alloy structural steel(GB 3077-88)
Alloy structural steel is a kind of steel alloy used in a variety of structural applications. It is composed of a combination of metal elements, including manganese, tungsten, vanadium, molybdenum, nickel, and chromium, which increase hardness and durability whi......
Lead and lead antimony alloy rod GB 1473-88
标题：Key Characteristics of Lead and Lead-Tin Alloy Rods Abstract Lead and lead-tin alloy rods are widely used in industrial and residential applications because of their excellent corrosion resistance and other properties. This article will discuss the key characteristics of these rods, including......
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