Overview of U.S. steel standardization organizations

The United States has a number of academic society, the association engaged in the standardization of steel work, involving the standardization of steel materials standards bodies, the main:
 
AISI - the American Institute of steel.
 
ACI - American Institute of alloy casting.
 
ANSI - the American National Standards Institute.
 
ASTM - the American Society of materials and testing.
 
SAE - the American Association of automotive engineers.
 
ASME - the American Society of mechanical engineers.
 
AWS - American Welding Society
 
UNS is the abbreviation of the unified digital system of metal and alloy designation, which is recommended by E507 SAE and J1086 ASTM and other technical standards.
 
The ANSI standard is widely used in the industry, but the society itself is not standard, only from other standardization organizations select a part of standard for the national standard, the standard number by double numbers such as ANSI/ASTM, the brand is another number in the standard grade.
 
The American Institute of materials and test (ASTM) standards are widely used in iron and steel materials, it is characterized by the ability to represent the standard formulation of the Department, the steel enterprises and users of the three parties to consensus on the views, and therefore widely used.
 
In practical work, the exposure to the United States is the most American Standard ASTM standard, so here with the ASTM related standards for the representative, introduced the United States steel grade representation.