Most widely used austenitic stainless steel, a versatile. Austenitic stainless steel, which is usually referred to as the 300 series, is ideally suited to laser welding, table 4. Type 304 stainless steel has good forming and welding properties as. Stainless steel 304 and stainless steel 304l are also known as 1. Properties, processing and applications carbon steel. Their chemical composition, mechanical properties, weldability and. The following chart outlines the times and temperatures required.
This combination of properties is the reason for the extensive use of these alloys which represent nearly one half of the total u. A major difference between 304 and 316 stainless steel is the chemical composition, with 316 containing a significant amount of molybdenum. Grade 304 stainless steel is the most versatile and the most widely used of all stainless steels. Globally, 304 accounts for more than 50% of stainless steel consumed. Mechanical properties of stainless steels flat products.
Core 3044301 is the basic variant with normal carbon and nickel content. Similar to 304, grade 316 stainless steel has high amounts of chromium and nickel. Here are the physical and chemical properties of the 301, 302, and 304 stainless steel that we regularly stock including the free bend requirements for each alloy. Of course we supply all stainless steel materials with a material certificate, if requested. Supercapacitive properties of nanoporous oxide layer. Core 3044301 is a classic 18% chromium, 8% nickel austenitic stainless steel and an allpurpose product with good corrosion resistance. The difference between 304 and 316 stainless steel metal. Well known stainless steel grade, very close to the 201 grade but with lower mechanical properties. It is an austenitic, corrosion resistant steel with excellent strength, toughness, fabrication characteristics and weldability. Stainless steel 304 and 304l are also known as stainless steel 1. Fabcor er308lsi austenitic wire used to join 301, 302, 304, 304l and 308 stainless steels. This article discusses the properties and applications of stainless steel grade 304 uns. In some instances type 304 can be used in the aswelded condition. Typical uses include architectural moul dings and trim, kitchen equipment, welded components of.
Property minimum mechanical properties required by astm a 240, and asme sa240 302, 304 304l 305. Austenitic 300 series stainless steel filler metals. It is an economical and versatile corrosion resistant alloy suitable for a wide range of general purpose applications. Three general classifications are used to identify stainless steels. Austenitic stainless steel general characteristics. Astm a493 grade 304 asannealed austenitic stainless. This is an austenitic chromiumnickel alloy which practically means that it has a very high corrosion resistance. Because ss 304 contains 18% chromium cr and 8% nickel ni, its also known as 188 stainless steel. Minimum room temperature mechanical properties, astm a240 and a666 specifications. This explains, in part, why crevices, surface pits, and tubercles are common sites of corrosion problems. Stainless 316 contains more nickel than stainless 304, while 304 contains more.
Types 302, 304, 304l, and 305 stainless steels are variations of the 18 percent chromium 8 percent nickel austenitic alloy, the most familiar and most frequently used alloy in the stainless steel family. Minimum mechanical properties for annealed ati 302, ati 304, ati 304l and ati 305 austenitic stainless steel plate, sheet and strip as required by astm specifications a 240 and asme specification sa240 are shown below. The nanoporous oxide layer is formed on the surface of 304 type stainless steel ss by chemical oxidation method. Eight standard heat treatments have been developed. Such dual certified product may be unacceptable for high. Minimum mechanical properties for annealed types 302, 304, 304l, and 305 austenitic stainless steel plate, sheet and strip as required by astm specifications a 240. Such alloys, which are based on type 304 188 stainless steel, as shown in fig. Reference is often made to stainless steel in the singular sense as if it were one material. Core 3044301 can be delivered with a variety of surface finishes. Core 304l4307 is a lowcarbon alternative to core 3044301 that is giving an improved resistance against intergranular corrosion. Grade 304 is the most commonly used stainless steel. We are creating other entries for more specific heat treatments and forms.
Stainless steel specifications, grades and properties. It also contains the use of sus304,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application. High ductility, excellent drawing, forming, and spinning properties. The austenitic crni standard grades are the most widely used group of stainless steels. Molybdenum is a chemical element used for the strengthening and hardening of steel. Adding nickel to stainless steel in sufficient amounts, changes the microstructure to austenite. A wide variety of 304 stainless steel material properties options are available to you, such as hot rolled. The saeansi 304 aisi 304 is the most commonly available and used type of stainless steel. The low carbon chemistry of 304l combined with an addition of nitrogen enables 304l to meet the mechanical properties of 304. Type 304 has good processability, weldability, corrosion resistance, heat resistance, low. Stainless steels stainless 304 properties, fabrication. Its chemical composition, mechanical properties, weldability and ncorrosionoxidation resistance provide the best allround performance stainless steel at relatively low cost. Core 3044301 is an austenitic stainless steel, which belongs to the standard crni stainless steel family.
It is still sometimes referred to by its old name 188 which is derived from the nominal composition of. Well known stainless steel as well, with very high corrosion resistance, it is usually reserved to very aggressive. The properties, applications and fabrication details are provided for 304 stainless steel. It has slightly lower mechanical properties than type 304. Ironchromiumnickel grades corresponding to both standard aisi 300series alloys and modified versions of these alloys. Stainless steel grade 304 cs 304 304l technical data. Stainless steel grade 304 is the standard 188 18% chrome, 8% nickel austenitic stainless steel. Astm a479 stainless steel astm a53 carbon steel pipes astm a564 stainless steel age hardened alloy steel. The low carbon version, 304l, may be required for full corrosion resistance when thicker sections are welded. Types 304 and 304l stainless steels useful for many applications. Types 304 and 304l are the most versatile and widely used of all the stainless steels. Material certificates you already receive, before delivery, in your e. These items have chemical and mechanical properties complying with both 304 and 304l specifications. Stainless steel metalcored wires are an excellent choice for flat and horizontal welding of long continuous seams where productivity can be maximized.
Stainless 316, 316l, 317, 317l united performance metals. Properties, production, examples and applications cold rolled steels difference between aisi 316, aisi 316l and aisi 316ln stainless steel electrical steel. Introduction to stainless steels asm international. Tables of technical properties of stainless steels flat products the selection of the appropriate stainless steel grade for each applic ation is the result of variou s considerations. It is still sometimes referred to by its old name 188 which is derived from the nominal composition. Aisi 304 grade stainless steel uns s30400 aisi 304 stainless steel uns s30400 is the most commonly used material in stainless steels, and is usually purchased in an annealed or cold worked state. This grade of steel also has excellent drawing properties and can be formed into bar, rod or sheet stock. The most basic difference between the grades of steel is the presence of molybdenum in stainless 316. Properties, types, production, and applications hot rolled steels introduction. Austenitic stainless steel has a thermal conductivity of one third of carbon steel and is a superior absorber of laser light. Minimum mechanical properties for annealed types 316, 316l, 317 and 317l austenitic stainless steel plate, sheet and strip as required by astm specifications a240 and asme specification sa240, are shown below. It is also referred to as 188 stainless steel, a2 stainless steel as per the iso 3506, or 304s15 as per the british standard. It has excellent forming and welding characteristics. It is common practice for 304l to be dual certified as 304 and 304l.
The 304 stainless steel is classified as a t 300 series austenitic stainless steel alloy, containing a minimum of 8 percent nickel and 18 percent chromium with a maximum of 0. Learn more here about its applications and properties. It is still sometimes referred to by its old name 188 which is derived from the nominal composition of type 304 being 18% chromium and 8% nickel. Austenitic stainless steel an overview sciencedirect. Its main function in stainless 316 is to help fight off corrosion from chlorides. Most widely used austenitic stainless steel, a versatile corrosion. Stainless 302, 304, 304l, 305 united performance metals. Types 304, 304l and 304h are the most versatile and widely used of all the stainless steels.
Their chemical composition, mechanical properties, weldability and corrosionoxidation resistance provide the best allround. This matweb entry has typical values for specimens of unknown formheat treatment but appear to be annealed samples. The most common grade of austenitic stainless steel is 304 1. Datasheet for steel grades stainless steel sus304 sus304 standard number. Both, core 3044301 and core 304l4307 are suitable for a wide variety of. Naturally, the latter materials will not last as long as the former, but that is part of the design plan for those plants. These alloys may be considered for a wide variety of applications where one or more of the following properties are important. In order to assis t the reader in this selection, euro inox makes the following tables of technical properties available.
It is also known as 188 stainless steel because of its composition, which includes 18% chromium and 8% nickel. The most common type of 304 stainless steel is the 188 or 188 steel, which constitutes 18% chromium and 8% nickel. Typical mechanical properties for grade 304 stainless steels are given in table 2. T304 can be easily welded and is the choice for many deep drawn, spun or formed parts due to its high ductility. Aisi type 304 stainless steel asm material data sheet matweb.