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Processed Brass - Chemical Composition and Product Shape GB 5232-85
Chemical Composition and Product Shape of Brass
Brass is an important industrial raw material, which is widely used in many fields. It has excellent electrical and thermal conductivity, abrasion resistance, surface gloss and corrosion resistance.In order to make the brass materials with higher pe......
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GB 1499-91 Rebar for Reinforced Concrete with Waste Heat Treatment
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Heat Treatment of Steel Reinforcement for Reinforced Concrete
Heat treatment of steel reinforcement is necessary when constructing reinforced concrete components. This process is used to improve the performance of the concrete component, by enhancing the properties of the steel reinforcement. T......
High-silicon corrosion-resistant iron castings (abstract) GB 8491-87) (instead of JB2262-78)
GB 8491-87 Ductile Cast Iron Anti-Corrosion Parts
GB 8491-87 is a standard developed by the China State Technical Supervision strictly inspecting the quality and performance of various types of ductile cast iron anti-corrosion parts. These parts are commonly used in various commercial and residen......
Weldability Test Oblique Y-shaped Groove Welding Crack Test Method GB 4675.1-84
Spiral Welded Steel Pipe Grades and Standard Specification
Spiral welded steel pipes are widely used in petroleum, natural gas, water pipelines and other projects involving the transportation of various materials. This type of piping has been used for over a century, making it a reliable and popu......
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......
Hot-rolled rings (YB/T4068-1991)
，引用的次数不低于5次
Hot Rolling Rings (YB/T4068-1991)
Hot rolling is a metallurgical process used to transform metal alloys in order to increase strength and reduce material costs. The process is often used to produce metal or alloy rings, specially-shaped components, or gears. Hot rolling rings ......
GB 12801-91 General Principles of Safety and Sanitation Requirements for Production Process
12801-91 Production Process Safety and Health Requirements General Provisions
This standard specifies the requirements and regulations of the production process safety and health in order to prevent and reduce occupational accidents, injuries and diseases. The objective of this standard is to ens......
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 ......
GB 17926-1999 Compressed natural gas cylinder valves for vehicles
GB 17926-1999Road Vehicle Compressed Natural Gas Cylinder Valves
This standard applies to road vehicle compressed natural gas (CNG) cylinder valves (hereafter referred to as valves).These valves are used for the connection of CNG cylinder and the other components in CNG system.
The technical re......
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......
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