The Calculation of Bearing Life
In order to accurately calculate the life span of bearing, one must first understand what a bearing is and what forces can cause it to wear out prematurely. A bearing is a device which supports and locates a rotating shaft in a predetermined position in relation t......
GB 6479-2000
Seamless Steel Pipes for High Pressure Fertilizer Equipment Manufacture and Delivery State
This standard deals with the seamless steel pipes that are used in high pressure fertilizer equipment, specifying the requirements and delivery states of the pipes.
1. Scope
This standard spe......
Abstract
This specification covers general requirements for wrought stainless steels and heat resisting steels in the form of bars, billets, blooms, and forgings for general requirements. The steel shall conform to chemical composition requirements, in which cost-effectiveness shall be considered......
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......
Low Alloy Structural Steel Technical Conditions GB 1591-1979 Introduction The formulation and promulgation of GB 1591—1979 “Low Alloy Structural Steel Technical Conditions” is mainly to promote the development and use of steel structures with excellent performances in our country. GB 1591—1979 ......
The bending diameter, weight and allowable deviation of heat-treated steel bars (GB 13014-1991)
In China, the bending diameter, weight and allowable deviation of heat-treated steel bars are stipulated by the national standard of GB 13014-1991.
1.Bending diameter
The bending diameter of heat-tre......
版本
Cold-rolled sheet steel and steel strips made of carbon structural steel and low-alloy structural steel are used in a wide range of applications. GB/T 11253-1989 is the national standard for the production and quality assurance of these products. This article provides a detailed description of......
Steel Price Index
There is no better way to assess the economic and market trend of a certain commodity than by looking at its price index. The steel price index is one such tool that provides an excellent insight into the global steel market. This index tracks the prices of several types of stee......
Introduction
Xiebisheng test is a common tool used in among metallographers. It is a specially studied impact test which is capable of telling the user stress-strain sensitiveness of particular materials. In this test, a sample of material is evaluated for its property of sensitizing to strain an......
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......