What is AISI?
American Iron and Steel Institute.
What is the difference between AISI and ASTM?
Summary. AISI is the American Iron and Steel Institute while ASTM is the American Society for Testing and Materials. AISI is concerned only with steel and iron products while ASTM is concerned with several other products including plastics, rubber, textiles, petroleum, and much more.
What does the American Iron and Steel Institute do?
AISI serves as the voice of the American steel industry in the public policy arena and advances the case for steel in the marketplace as the preferred material of choice. AISI also plays a lead role in the development and application of new steels and steelmaking technology.
Where are AISI standards?
All AISI Standards are available for free electronic download at www.aisistandards.org.
What material is SAE 1112?
Material-Cold drawn SAE 1112 or 1113 steel, alloy steel or copper alloy as specified by purchaser. Unless otherwise specified, steel pins shall have a flash plate of cadmium or zinc for protection of pins in transit or storage.
What does the designation SAE 1020 mean?
1020. the first digit indicates that this is plain carbon steel. the second digit indicates there are no alloying elements. the last two digits indicates that the steel contains approximately 0.20 percent carbon.
What does SAE mean for steel?
Society of Automotive Engineers
Origin of the Coding System and the Society of Automotive Engineers (S.A.E.). Alloy steels and carbon steels for a number of years were designated with specific grades by a four-digit SAE/AISE numerical index system.
What is ASTM in steel?
ASTM steel grades are those that meet the exacting standards for specific grades of steel developed by the American Society for Testing and Materials. The standards include mechanical properties and steel chemistries and specify the testing methods to be used.
What do steel numbers mean?
Carbon steel Carbon steels and alloy steels are designated a four digit number, whereby the first digit indicates the main alloying element(s), the second digit indicates tg (top grade) element(s), and the last two digits indicate the amount of carbon, in hundredths of a percent (basis points) by weight.
How was steel made in the 1800s?
In the 1800s, the US switched from charcoal to coke in ore smelting, adopted the Bessemer process, and saw the rise of very large integrated steel mills. In the 20th century, the US industry successively adopted the open hearth furnace, then the basic oxygen steelmaking process.