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Hollow steel for rock drilling rods (GB/T1301—1994)
Hollow steel, also known as hollow steel, is a kind of steel cross section made of uniform thickness rolled and welded steel, which is also called divided steel. It is an iron and steel material with different shapes and wall thicknesses. It is mostly used for steel columns, steel beams, steel sca......
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Hollow steel for rock drilling needle rods (GB/T1301-1994)
Introduction
Rock drills, also called pneumatic drills, are a type of machinery used to drill into rock or hard surfaces. Rock drills are powered by compressed air and contain a hollow steel tube that is inserted into a rock or hard surface to create a hole. These drills are commonly used in the ......
Technical specification for testing concrete strength by core drilling method
The full penetration diamond core method is a viable and cost-effective process for accurately assessing the compressive strength of concrete, minimizing the risk of obtaining false or misleading test results. This method provides a reliable measure of the concretes strength, since it wets the e......
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......
GB 13013-91 Hot-rolled straight and smooth round bars for reinforced concrete
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Hot rolled straight round steel bars for reinforced concrete in GB 13013-1991 has been the most commonly used non-alloy and low alloy steel bars in China, used for the construction and reinforcement of concrete structures.
The steel bars used in GB 13013-1991 have good plasticity and toughness,......
Ferrochrome (GB/T5683-1987)
Chrome Iron
Chrome iron (CFe) is a type of ferrous alloy consisting of varying proportions of iron, chromium and carbon. It is produced by adding varying amounts of chromium and carbon to the pure iron at temperatures between 1400°C and 1600°C while sustaining an oxygen atmosphere. The higher t......
Chemical Composition of Several New Types of Base Steels in China
Development of Advanced High-Strength Steel in China
The development of advanced high-strength steels (AHSS) plays an important role in the development of modern vehicle manufacture and steel processing industries and is beneficial to Chinas economic development. In this regard, due to the low co......
Metal drill (GB/T3211-1987)
Metal drill (GB/T3211-1987)
Metal drills are tools which can be used to drill holes through metal surfaces. As metal is a more robust material than wood, it demands more specialized tools for drilling. Metal drill (GB/T3211-1987) is a certification standard of metal drill tools in China.
Metal ......
steel marking code
Stainless steel is one of the most popular and heavily used materials in the world. It is used in a wide range of applications, from cars to kitchen appliances, and its signature strength and durability make it an ideal choice for many. The sheer number of different types of stainless steel can be......
Summary of Japanese JIS steel grade representation method
Japanese JIS Steel Designation System Overview
The Japanese Industrial Standard (JIS) steel designation system is a Japanese standard for identifying a wide range of steel grades. It is the most commonly used steel designation system in the world. Steel grades can range from those produced in Jap......
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