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Brief introduction to the representation method of metal material grades in China (GB)
Introduction
China has a unique system of numbering and coding a wide range of metallic materials, called Chinese Standard (GB) Metal Materials Numbering System (in Chinese “gong bu”). Generally, it is a four-digit designations for classifying and determining basic Metal materials.
The Purpose......
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National standard steel product marking code of the People's Republic of China
Symbolic Code of Steel Products of the Peoples Republic of China
China is an influential country in the world today and is one of the largest producers of steel products in the world. To ensure the quality of the steel products produced in China, the government has established a national standard......
Sealed wire rope (GB/T352-1988)
GB/T352-1988 Sealed Steel Wire Rope
The General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China (AQSIQ) has released the Standard GB/T352-1988 Sealed Steel Wire Rope. This standard is applicable to the steel wire ropes used on lifting machines o......
Steel wire for gas shielded welding GB/T 14958-94
Standard No.: GB/T 14958-94
1. Overview of GB/T 14958-94
GB/T 14958-94 specifies the requirements for gas shielded welding wire used for welding protective gases. It is made of low-alloy heat-resistant steel and calcium silicate ceramic core mainly used in welding with shielding protection gases......
Stainless steel wire (GB/T4240-1993)
，总结该标准的要求
Summary of GB/T4240-1993 Stainless Steel Wire
GB/T4240-1993 is a technical specification for stainless steel wire established by the General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China. The specification defines the require......
Aluminum and aluminum alloy welding wire GB 10858–89
GB 10858–89 Aluminum and aluminum alloys welding wire Among all kinds of welding wires, aluminum and aluminum alloys welding wires are widely used, especially in industries such as shipbuilding, manufacturing, oil and gas, and construction. In order to ensure the quality and safety of aluminum and......
Chrome vanadium spring steel wire for valves (YB/T5136-1993)
Introduction
Chrome vanadium spring steel wire is a kind of advanced material, which is widely used in many industrial fields due to its excellent physical and mechanical properties, such as its high tensile strength, high elasticity and good fatigue resistance. In 1993, the Ministry of Machinery......
Copper and copper alloy welding wire GB 9460-88
GB9460-88 Copper and Copper Alloy Welding Wire
The General Administration of Quality Supervision, Inspection and Quarantine of the Peoples Republic of China issued a standard (GB9460-88) to control the quality of copper and copper alloy welding wire. The standard covers the welding wires with a ......
Length and allowable deviation of hot-rolled ribbed steel bars (GB 1499-1998)
GB 1499-1998 Hot Rolled Ribbed Steel Bars Length and Tolerance
Steel is an important construction material and one of the most commonly used building products. Hot rolled ribbed steel bars are one of the most commonly used steel products for reinforcing concrete structures. GB 1499-1998 Hot Rolle......
Corrosion-resistant alloy cold-rolled strip GB 278-88
，
Corrosion-resistant alloys cold-rolled strips (GB 278-88)
Corrosion-resistant alloys (CRAs) are materials that are used to provide a protective layer of material between substances that are in contact with each other in order to reduce the possibility of corrosion. As part of this protective la......
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