GB 242-82 Metal Tube Expanding Test Method
This document provides requirements and procedures for expanding metallic tubes conforming to GB 242. This method relies on the properties of traditional thermally treated or mechanically formed metal tube components to expand under pressure. For this re......
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 ......
Introduction
The jb51235-1999 is a tractor-mounted stalk cutter that is often used in the tilling of fields. This machine consists of a frame, a rotary cutter, an engine, and a transport wheel. The frame consists of a heavy-duty steel frame and provides a stable platform for the machine when it i......
General Requirements for the Surface Quality of Hot Rolled Steel Sheets
Hot-rolled steel sheets are widely used in construction engineering and other industries due to their excellent characteristics. To ensure a good performance, it is necessary to meet the surface quality requirements. General ......
Japan Iron and Steel Scrap Classification Standard (JIS G2401)
Japan Iron and Steel Scrap Classification Standard (JIS G2401) was established to classify the scrap steel product used in iron and steel production. According to the standard, the scrap steel products should be divided into three main......
GB 17926-1999Road Vehicle Compressed Natural Gas Cylinder Valves
This standard applies to road vehicle compressed natural gas (CNG) cylinder valves (hereafter referred to as valves).These valves are used for the connection of CNG cylinder and the other components in CNG system.
The technical re......
解析
Introduction
JGJ81-2002 is a set of national standard, which regulates the welding technology process of Building Steel Structure. It also outlines the basic requirements for welding procedures and the specific welding requirements for steel structure construction buildings.
Welding Process
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The GB 905-82 standard which outlines the specifications for cold drawn round steel covers the dimensions, shape, weight, and permissible deviation from the specified dimension and shape of cold drawn round steel products. The applicable materials are carbon steel products, alloy steel products, a......
Germany is the world leader in the production of high-temperature austenitic steel plate, sheet, cold-rolled and hot-dipped steel strips. As one of the largest producers and exporters of hot-rolled steel products in Europe, Germany has a long history of producing high-grade steels suitable for eve......
Introduction
Low alloy welding electrodes are used when welding low alloy steels and are mainly used as filler metal electrodes in gas metal arc (GMAW) and gas tungsten arc (GTAW) welding processes. Low alloy welding electrodes are made of metals and alloys such as nickel and aluminum, which allo......