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JGJ81-2002 Construction steel structure welding technical specification (fourth)
National Technical Specifications for Steel Building Co welding of JGJ81-2002
In 2002, the National Technical Specifications for Steel Building Co welding (JGJ81-2002) was introduced for the construction industry. This document embodies a set of rules and norms that are intended to standardize an......
1066 
Sophia
Hot-rolled section steel for elevator guide rails (YB/T157-1999)
Hot Rolled Steel for Elevator Guide Rail
Steel is mainly used as a structural material in the manufacture of elevators, and hot rolled steel is one of the most commonly used materials. Hot rolled strip steel is required to conform to the quality and dimensions specified in national standards (YB......
Electroslag casting alloy tool steel module (YB/T155-1999)
Introduction
Tool steel is one of the most important components used in metalworking and mechanical manufacturing. It is a special steel alloy composed of many elements and used in a wide range of industrial applications. It has strong wear resistance, high strength and good toughness, as well as......
Carbon steel flux cored wire GB 10045-881
Carbon steel electrodes for arc welding
Carbon steel electrodes for arc welding are an important part of the welding industry. These electrodes are commonly used for a variety of structural fabrication, pressure vessel fabrication, and pipe fabrication welding processes.
These electrodes play a ......
Summary of Progressive Cavity Pump Standards
Centrifugal and Screw Pumps: Standards
Centrifugal and screw pumps are two of the most commonly used pumps in industry today. They are reliable, durable, and able to handle a wide range of pumping applications. Many industries require that these pumps adhere to certain standards in order to ensur......
Aluminum and aluminum alloy welding rod GB 3669-83
GB 3669-83 Alloy aluminum welding rods
Introduction
GB 3669-83 is an international standard of alloy aluminum welding rods. This standard is issued in 1983 and identifies the requirements for alloy aluminum welding rods for fusion welding. It plays an important role in all kinds of activities re......
9SiCr use
1 Introduction
9SiCr is an alloy steel that consists of a combination of silicon and chrome. Its properties include high strength and excellent wear resistance at elevated temperatures. It is often used in the production of cutting tools, mining and drilling equipment, automotive parts and compon......
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......
1Cr12Mo use
1Cr12Mo Introduction
1Cr12Mo is a Fe-Cr-Mo alloy designed for welding and post-weld heat treatment. The high carbon content and low sulfur content of 1Cr12Mo increase its hardness and wear resistance, making it suitable for corrosive and abrasive environments. The addition of high molybdenum cont......
Brief introduction of 0Cr18Ni11Nb (AISI347) steel grade
Introduction of AISI347
AISI347, also known as 0Cr18Ni11Nb, is a stainless steel grade developed and produced by the American Iron and Steel Institute (AISI). It is an austenitic stainless steel alloy containing at least 18% chromium, 11% nickel and 0.75% niobium, with additions of molybdenum, ti......
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