Sae Stainless Steel Designation

The simplest system for designation of steel is schematically shown in figure 1.

Sae stainless steel designation.

For welders the most common stainless steel filler rod you ll see is 304l used on austenitic grades. 2 standard designation system for steel numbers 3 metal number specifications for steel. 4 1 austenitic stainless steel. The first number indicates the percentage of chromium added to the steel the second number the percent nickel.

Standard specification for ornamental fences employing galvanized steel tubular pickets. In the 1930s and 1940s the american iron and steel institute aisi and sae were both involved in efforts to standardize such a numbering system for steels. The sae system uses a basic four digit system to designate the chemical composition of carbon and alloy steels. 304 stainless steel by the sae standard might also be graded as.

However to receive a given grade designation the alloy must adhere to a strict set of requirements set forth by the organization maintaining. The first digit of aisi sae steel designation represents a general category grouping of steels. Stainless steels may also be idenfitied by their chromium nickel percentages. Alloy steels and carbon steels can be designated with specific grades by a four digit aise sae numerical index system.

Carbon steel and. Older grades often feature a three digit identifier established by the society of automotive engineers sae. The system is based on the chemical compositions of the steels and alloys. 4 stainless steel codes and groups.

You see designations like 18 8 15 5 17 7 etc. Sae society of automotive engineers. 4 3 martinistic stainless steel. These efforts were similar and overlapped significantly.

The sae steel grades system is a standard alloy numbering system sae j1086 numbering metals and alloys for steel grades maintained by sae international. This means that 1xxx groups within the sae aisi system represent carbon steels. 3 1 carbon and alloy steel 2 stainless steel 3 high strength low alloy steel 4 see also 5 references 5 1 notes 5 2 bibliography main articles. F2453 f2453m 14 2019 standard specification for welded wire mesh fence fabric metallic coated or polymer coated for meshes of 6 in.

Prior to 1995 the aisi was also involved and the standard was designated the aisi sae steel grades. The first digit indicates that this is plain. Sae designation uns designation cr ni c mn si p s n other. 4 2 ferritic stainless steel.

Aisi american iron and steel institute. The aisi stopped being involved because it never wrote any of the specifications. 4 4 duplex stainless steel.