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GB 6681-86 General Rules for Sampling of Gas Chemical Products
General Principles of Gas Chemical Products Sampling GB 6681-86 “The General Principles for Gas Chemical Products Sampling” provides criteria for sampling variety of gas chemical products, as well as provisions and modeling diagrams of sampling device. This standard effectively protects the fair ......
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Cast steel roll (GB/T1503-1991)
ABSTRACT
Rolling is the most important through-processing technology of metallic materials. The roll is an important part of the equipment in the process of rolling mill. Different types of rolls are used in different rolling processes. GB/T1503-1991 specifies one of the characteristics of rolls,......
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......
Plastic mold steel module (YB/t129-1997)
Introduction
This article will attempt to provide an overview of YB/t129-1997, a standard, or document, issued by the Chinese State General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) for plastic injection mould steel modules (PIPSMs). Specifically, the article will c......
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......
Alloy tool steel (GB/t1299-1985)
Introduction
GB/t1299-1985 alloy tool steel is a steel widely used in the manufacture of Punching dies, blades, cutting tools, molds and other tool wear parts and components that require hard brittle surfaces and sharply defined edges. It has good weldability, machinability and formability, low d......
12CrNi4 use
12CrNi4 Steel
12CrNi4 steel is a low-carbon, high-strength structural steel that is also known as ferritic-austenitic steel, produced according to Chinese GB/t1221 standard.
12CrNi4 steel is a low-carbon, low alloy steel containing 10%-12% chromium and 0.3%-0.5% nickel. As a result of its low-ca......
Spring steel (GB/t1222-1984)
Spring Steel (GB/t1222-1984)
Spring steel, also known as high-strength carbon-manganese steel, is an ultra-high strength steel used for engineering applications. It is often used in the form of dual-phase micro-alloyed steel, which is manufactured using precise forging processes to ensure uniform......
Comparison table of Chinese and foreign steel grades for cold pier steel
Table of Steel Grades for U.S. Producers And Chinese Markets
U.S. Steel Producers and Chinese Markets use different steel grade systems to classify steels. This table provides a comparison of steel grades from the two systems.
U.S. ASTM Grades: American Society for Testing and Materials (ASTM) g......
Cold heading steel wire (GB/T5953-1999)
Cold Drawn Steel Wire (GB/T5953-1999)
Cold drawn steel wire (GB/T5953-1999) is a type of wire that is made from cold-drawn steel, often referred to as cold-worked steel or low-temperature drawn steel. The process of cold-drawing involves no heat, but rather a series of mechanical processes to str......
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