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Search results for keyword: peoples
Low temperature Charpy impact test method for metals GB 4159-84
,要求不少于2500 The Test Method of Low Temperature Charpy Impact Test for Metals Low-temperature Charpy impact test is a kind of mechanical test which is usually used to measure the impact properties of metals. It is a test method used to measure the energy absorbed by a metal during fracture unde......
Metal resistance to sulfide stress corrosion cracking constant load tensile test method GB 4157-84
The GB 4157–84 Metal Anti-Sulphur Corrosion Stress Corrosion Cracking Constant Load Stretch Test Method is a standard created by the Chinese government to measure the susceptibility of a metal to stress corrosion cracking caused by sulphur. The purpose of this test is to determine the ability of ......
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......
tags: cast iron quality iron castings standard
1045
Sophia
GB 3838-88 Surface Water Environmental Quality Standard
GB 3838-88 Groundwater Environment Quality Standard Introduction The quality of groundwater is important for human activities, environment protection and ecological security. To ensure the quality of groundwater, the Environmental Protection Agency of China (EPA) established the Groundwater Env......
Hot-rolled section steel for elevator guide rails (YB/T157-1999)
Hot Rolled Steel for Elevator Guide Rail Steel is mainly used as a structural material in the manufacture of elevators, and hot rolled steel is one of the most commonly used materials. Hot rolled strip steel is required to conform to the quality and dimensions specified in national standards (YB......
tags: steel rolled hot steel hot elevator
1083
Caroline
Dimensions, shapes, weights and allowable deviations of forged round and square steel (abstract) GB 908-87
GB 908-87 Steel Round and Square Bars This standard outlines the dimensions, shape, weight, and allowable tolerances for round and square steel bars. Dimensions The general dimensions of steel round bars with a maximum diameter of 250 mm, and the general dimensions of square bars with a maxim......
tags: should bars round steel round square
1047
Oliver
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......
tags: heat treatment its heat treatment gbt
1058
Amelia
GB/T 2517-1981 Allowable deviations of hot-rolled steel sheets and strips for general structures
GB/T 2517-1981 General Structural Hot Rolled Steel Sheets and Strips Allowable Deviation GB/T 2517-1981 is a standard for hot rolled steel sheets and strips for general structural purposes. Adopted on June 1, 1981, it was issued and promulgated by the peoples Republic of China General Administrat......
tags: steel gbt 25171981 steel plate general
1091
Megan
Carbon structural steel and low alloy structural steel GB 11253-89
GB 11253—89 Carbon Structural Steels and Low Alloy Structural Steels GB 11253—89, issued by the National Quality Surveillance Bureau of the peoples Republic of China, is a national standard specifying requirements for carbon structural steels and low alloy structural steels. GB 11253—89 specif......
tags: steels structural gb steel provisions table
1090
Emily
GB 6654-86 Carbon Steel and Low Alloy Steel Plates for Pressure Vessels
? GB 6654-1986 Steel plates for pressure vessels using carbon steels and low alloy steels was issued in March 1986 by the Ministry of Machinery & Electronics Industry of the peoples Republic of China. This standard specifies the requirements for steel plates used for pressure vessels, including th......
tags: steels steel pressure should steel content
1056
Sophie
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