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GB 1173-86 Specifications for Casting Aluminum Alloys
，或者英文报告
2500 Words on Casting Aluminum Alloy Technology
The casting of aluminum alloys is an important process for producing components of various shapes and sizes. The technology has been around since ancient times and has been used to create tools, weapons, and sculptures. In this paper, ......
1056 
Harrison
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......
Alloy structural steel (GB 3077-88) (5)
Alloy structural steels are series of steel grades with special chemical compositions and/or mechanical properties which is mainly used in bridges, offshore structures, ships, vehicles, and steel structures. The alloy structural steel GB 3077-88 is a kind of hot rolled and forging alloy steel for ......
Brass welded pipe GB 11092–89
Copper is one of the most versatile metals that have been around for centuries. Copper has a natural ability to transfer heat and electricity, making it the go-to for wiring and other electrical uses. Of all the forms of copper, the type of copper most used in welding applications is GB11092-89.
......
Mining steel (YB/T5047-1993)
Chinese standard YB/T5047-1993 is national steel standard for the application of steel used in the manufacture of tools for use in mining. It is updated on an annual basis and is closely monitored by the Ministry of Industry and Information Technology to ensure the safety and reliability of product......
Casting weight tolerance (abstract) GB/T 11351-89
GB/T 11351-89 Castings Weight Tolerances
GB/T 11351-89 specifies the weight tolerances to be used in weight inspection of the castings. Standard test pieces are provided for the determination of casting weight for comparison. This standard applies to all kinds of castings whose surface area is gr......
Limit values of specified content of alloying elements in non-alloy steel, low alloy steel and alloy steel
Steel has been used in many industrial fields in recent years, including automobile manufacturing, construction, and shipbuilding. According to the characteristics and application requirements of the industry, the alloy element content in the steel must be strictly limited, so as to ensure the qua......
GB 6654-86 Carbon Steel and Low Alloy Steel Plates for Pressure Vessels
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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......
Carbon tool steel (GB/T1298-1986)
Carbon tool steels are steels designed for machining, heat treating and other metal working tasks that are, for the most part, only accessible to non-metal working trades. Carbon tool steels have a low carbon content, typically from 0.5 percent to 1.2 percent, and are characterized by high-hardena......
20CrMn use
20CrMn is a kind of alloy structural steel, and its mechanical properties greatly exceed that of ordinary structural steel. It is used for important parts in various machines, and its performance is very positive for engineering machinery structures.
First of all, the most important use of 20CrMn......
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