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Search results for keyword: obt
Construction project supervision specification (GB50319-2000)
Chinese Construction Project Supervision Standard (GB50319-2000) China has experienced a dramatic shift in its labor force and economy in the last few decades. This shift has necessitated the adoption of stricter and more comprehensive regulations, standards, and guidelines for China’s construc......
Technical conditions for high manganese steel castings GB 5680-85
Technological condition of high-manganese steel castings High manganese steel castings are a kind of alloy castings, which are mainly composed of high manganese steel materials, and contain trace elements such as silicon, nickel and chromium. Most of them are pearlite low-carbon high-manganese ste......
tags: steel high manganese highcarbon steel cast
1058
Megan
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......
tags: test weldment welding test cracking cts
1033
Ava
Alloy structural steel (GB 3077-88) (7)
Alloy structural steel (GB 3077-88) (VII) Alloy structural steel (GB 3077-88) (VII) refers to steel alloys which are widely used in engineering and construction applications such as automobiles, bridges and buildings. These alloys consist of iron, carbon and other alloying elements such as nickel......
tags: steel alloy gb steel alloy kind
1040
Sophie
Heat-resistant steel castings (abstract) GB 8492-87
Heat-resistant steels are widely used for casting of components for many industries such as the oil and gas, petrochemical and power generation. The properties of these steels provide them with good thermal and oxidation resistance to high temperature environments, coupled with good strength and h......
Metal material laboratory uniform corrosion full immersion test method GB 10124-88
The Uniform Immersion Corrosion Test Method for Metal Materials in the Laboratory The Uniform Immersion Corrosion Test Method for Metal Materials in the Laboratory is the most commonly used test method to investigate the corrosion resistance of metal materials. It is performed according to the pr......
Low temperature Charpy impact test method for metals GB 4159-84
,要求不少于2500 The Test Method of Low Temperature Charpy Impact Test for Metals Low-temperature Charpy impact test is a kind of mechanical test which is usually used to measure the impact properties of metals. It is a test method used to measure the energy absorbed by a metal during fracture unde......
Lead and lead antimony alloy plate GB 1470-88
Lead and Lead-antimony Alloys Plate Lead and lead-antimony alloys plates are metals made up of element lead, with small amounts of other elements, such as antimony. These plates are often malleable, ductile and low melting point. They are often used in various applications ranging from shielding ......
Metal pipe flaring test method GB 242-82
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......
tags: tube test should metal tubes test
1097
Megan
Metal resistance to sulfide stress corrosion cracking constant load tensile test method GB 4157-84
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 ......
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