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Technical delivery conditions for welded round steel pipes of austenitic stainless steel with special requirements (DIN 17457-1985)
This standard sets out the technical requirements for the delivery of welded stainless steel tubes with special requirements made of austenitic stainless steel (DIN 17457-1985).
1 Scope
This Standard applies to stainless steel tubes made of austenitic stainless steel, referred to as welded tubes......
1056 
Sophie
ASTM A29/A29M-1993 Standard Grain Size of Hot-Worked and Cold-Worked Carbon and Alloy Steel Bars
Abstract
This article aims to discuss the practices on grain size measurements of ASTM A29/A29M-1993 hot-processed and cold-processed carbon and alloy steel bars. The procedures for grain size measurements are thoroughly discussed, beginning from the selection of specimens, followed by the sample......
GB/T 714-2000 Mechanical properties and technological properties of structural steel for bridges
GB/T 714-2000 Structural Steel for Bridges —Mechanical and Technological Properties
This standard mainly applies to hot-rolled structural steel plates, bars and shapes used in bridges. The general requirements and technical conditions of delivery for steel structural products are stipulated in......
Accuracy class
，
Accuracy grades refer to the precision of measurements and are used in the quality control processes of many industries. An accuracy grade is a measure of the closeness of a measurement to its true value. This is a very important concept in the fields of engineering, physics, and chemistry, wher......
"ISO9000 family" standard
答案
ISO 9000 family
The ISO 9000 family of standards are quality management systems (QMS) standards developed by the International Organization for Standardization (ISO), and are designed to help business owners and managers identify and control quality related activities in their operations. The......
In 2008, a number of mandatory standards for the instrumentation industry will be formulated
Introduction
In 2008, a number of compulsory standards in the instrumentation and measurement sector will be implemented. These standards are set to provide additional certainty and quality assurance for manufacturers, consumers and industrial end-users who regularly use or are involved in the se......
American Wire Standard
American Wire Gauge Standard
American Wire Gauge (AWG) is a system of labeling electrical conductors that is widely used in the United States. It is also referred to as the Brown & Sharpe (B&S) gauge, although that term is ambiguous. AWG assigns a gauge number to each size of conduit or wire. The......
Test method for stainless steel ferric chloride crevice corrosion GB 10127-88
The standard GB 10127-88 ”Test Method for Stainless Steel Cathodic Rectifiers of Corrosion Gaps” is a widely used standard for testing corrosion gaps in stainless steel trichloride baths. Corrosion gaps occur as a result of biofilm buildup on the surface of stainless steel trichloride baths. Thi......
National Development and Reform Commission approves several cemented carbide industry standards
Introduction
In recent years, China has actively advanced the standardization of the hard alloy industry in accordance with the overall principle of strengthening the work of industry standardization and promoting the transformation of industrial structure and quality. China National Development ......
Weldability test lap joint (CTS) welding crack test method GB 4675.2-84
In the CTS welding crack test, the most important is to prepare the test specimen. Before the weldment is tested, it needs to meet certain requirements, otherwise the results obtained will not be meaningful. For example, the welding itself should be performed skillfully, and the components of the w......
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