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Lead and lead antimony alloy plate GB 1470-88
Lead and Lead-antimony Alloys Plate
Lead and lead-antimony alloys plates are metals made up of element lead, with small amounts of other elements, such as antimony. These plates are often malleable, ductile and low melting point. They are often used in various applications ranging from shielding ......
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Malleable Iron Castings (Abstract) GB 9440-88
GB 9440-88 is a national standard issued by the Ministry of Industry and Information Technology of the Peoples Republic of China. It specifies technical requirements, test methods and inspection rules, conditions of supply and acceptance, and packaging, marking and quality certificate of cast iron......
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 ......
JGJ81-2002 Construction Steel Structure Welding Technical Regulations (Part 8)
Welding technology regulations of building steel structures according to JGJ81-2002(part 8)
Welding of steel structures is an important part of the construction technology of steel structures. In steel structure construction, welding is used to connect steel members, building components and addit......
JGJ81-2002 Construction steel structure welding technical specification (fourth)
National Technical Specifications for Steel Building Co welding of JGJ81-2002
In 2002, the National Technical Specifications for Steel Building Co welding (JGJ81-2002) was introduced for the construction industry. This document embodies a set of rules and norms that are intended to standardize an......
Ferrochrome nitride (YB/T5140-1993)
：
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......
GB/T 4162-91 Ultrasonic Inspection Method for Forged Steel Bars
材料
Abstract
Ultrasonic testing is an important technique for detection of rolling defects in steel bars. Ultrasonic testing is typically used to detect internal flaws, such as cracks and other discontinuities, that cannot be detected by visual inspection. GB／T 4162–91 regulates the ultrasonic ......
Composite steel plate ultrasonic flaw detection method GB 7734-87
Ultrasonic testing is a form of non-destructive testing that utilizes the principle of ultrasound, which is the vibration of sound waves greater than the human ear can detect, to detect flaws in a material. It’s one of the most common testing methods used to inspect steel plates, and can be appli......
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......
Gray cast iron pipe with flexible mechanical interface (GB/T6483-1986)
Introduction
Flexible mechanical interface grey mouth cast iron pipes are among the most popular pipe configurations used in modern applications. It is with this in mind that the Chinese industrial standard (GB/T6483-1986) was created to ensure quality assurance and improved operational performan......
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