Austenitic stainless steel an overview sciencedirect topics. This article discusses the properties and applications of stainless steel grade 304 uns s30400. Types 302, 304, 304l and 305 austenitic stainless steels provide useful resistance to corrosion on a wide range of moderately oxidizing to moderately reducing environments. Aisi 304l is the low carbon version of 304 stainless steel, aisi 316 is better than grade 304 in certain properties, corrosion resistance and heat resistance, etc.
Alloys 304l is the most versatile and widely used alloy in the stainless steel family. These items have chemical and mechanical properties complying with both 304 and 304l specifications. A major difference between 304 and 316 stainless steel is the chemical composition, with 316 containing a significant amount of molybdenum. As an integrated stainless steel producer, jfe produces stainless steel from steel. The datasheet and specification are summarized in the following tables including. Both, core 304 4301 and core 304l4307 are suitable for a wide variety of. Mechanical properties of 304 grade stainless steel. 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. It is also referred to as 188 stainless steel, a2 stainless steel as per the iso 3506, or 304s15 as per the british standard. Identification pipe size steel inches outside diameter inches iron pipe size schedule no. Stainless steel datasheets revised november 2011 page 1 of 1 au austenitic stainless steels 301, 301l, 301ln high strength for roll formed structural components 302hq low work hardening rate grade for cold heading fasteners 303, 303se freemachining bar grades 304, 304l, 304h standard 188 grades.
Most widely used austenitic stainless steel, a versatile. Core 3044301 can be delivered with a variety of surface finishes. The following chapters aim to give an overall picture of the stainless world and what it can offer. The alloys are used widely in equipment and utensils for processing and handling of food, beverages and sh water also utilize these alloys. Low carbon content means less carbide precipitation in the heataffected zone during. The saeansi 304 aisi 304 is the most commonly available and used type of stainless steel. Well known stainless steel as well, with very high corrosion resistance, it is usually reserved to very aggressive.
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. Effect of cold working on mechanical properties of aisi 304l stainless steel. Ak steel corporation 9227 centre pointe drive west chester, oh 45069 844. This matweb entry has typical values for specimens of unknown formheat treatment but appear to be annealed samples. It is also known as 188 stainless steel because of its composition, which includes 18% chromium and 8% nickel. Thermomechanically treatment to optimize the grain boundary character distribution gbcd in 304 austenitic stainless steel has been established in a previous study 3.
Aisi 304 and 304l, which form more than 50% of the global production of stainless steel. It has excellent forming and welding characteristics. Process equipment in mining, chemical, cryogenic, food, dairy, and pharmaceutical industries. Pdf effect of cold working on mechanical properties of. Learn more here about its applications and properties.
Ss304 grade aisi 304 stainless steel properties, composition. Minimum mechanical properties for annealed types 316, 316l, 317 and 317l austenitic stainless steel plate, sheet and strip as required by astm specifications a240. In some instances type 304 can be used in the aswelded condition. Types 304 and 304l stainless steels useful for many applications. Alloy 304l a t300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel. Such dual certified product may be unacceptable for high.
It is common practice for 304l to be dual certified as 304 and 304l. Its main function in stainless 316 is to help fight off corrosion from chlorides. It has almost the same physical and mechanical properties as 304 stainless steel, and contains a similar material makeup. Austenitic stainless steel general characteristics. Datasheet for steel grades stainless steel sus304 sus304 standard number.
This combination of properties is the reason for the extensive use of these alloys which represent nearly one half of the total u. We are creating other entries for more specific heat treatments and forms. Stainless steel grade 304 is the standard 188 18% chrome, 8% nickel austenitic stainless steel. Its an allpurpose product with good corrosion resistance and is suitable for a wide variety of applications that require good formability and weldability. The properties, applications and fabrication details are provided for 304 stainless steel. Stainless steel 304 and stainless steel 304l are also known as 1. The difference between 304 and 316 stainless steel metal. Hardness is measured by hv or hrb only, depending upon the sheet thickness. 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. In order to assis t the reader in this selection, euro inox makes the following tables of technical properties available. Tables of technical properties of stainless steels flat products.
Stainless steel specifications, grades and properties. The most basic difference between the grades of steel is the presence of molybdenum in stainless 316. T304 can be easily welded and is the choice for many deep drawn, spun or formed parts due to its high ductility. Stainless steels stainless 304 properties, fabrication and. Molybdenum is a chemical element used for the strengthening and hardening of steel. Type 304 frequently referred to as 188 stainless is the most widely used alloy of the austenitic group. This article discusses the properties and applications of stainless steel grade 304 uns. May 18, 2005 type 304 is the most versatile and widely used stainless steel. En 1 jindal stainless indias largest stainless steel. Well known stainless steel grade, very close to the 201 grade but with lower mechanical properties.
Core 3044301 is a classic 18% chromium, 8% nickel austenitic stainless steel. Most widely used austenitic stainless steel, a versatile corrosion. It has a nominal composition of 18% chromium and 8%. Core 304 4301 is a classic 18% chromium, 8% nickel austenitic stainless steel and an allpurpose product with good corrosion resistance. Types 302 s30200, 304 s30400, 304l s30403, 305 s30500.
Stainless 316, 316l, 317, 317l specialty stainless steel. Mechanical properties hardness, brinell 123 123 converted from rockwell b hardness. For more information, please check 304 vs 316 stainless steel. 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 and asme specification sa240 are shown below. Use of stainless steel steel is unquestionably the dominating industrial constructional. It is an economical and versatile corrosion resistant alloy suitable for a wide range of general purpose applications. It is reasonable to expect specifications in these standards to.
Even if its not listed here, we might have what you need. Stainless steel 304 and 304l are also known as stainless steel 1. The particular application for which stainless steel will be used determines the type and grade of stainless steel. Together these grades make up over 80% of the total tonnage of stainless steels. The low carbon chemistry of 304l combined with an addition of nitrogen enables 304l to meet the mechanical properties of 304. Essentially nonmagnetic, becomes slightly magnetic when cold worked.
Design guidelines for the selection and use of stainless steel nidl distributed by nickel development institute. 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. The lower carbon content minimizes chromium carbide precipitation due to welding and its susceptibility to intergranular corrosion. Please contact us if you require special steel types other than those shown in the table. 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.
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. Type 304 is the most versatile and widely used stainless steel. Architectural features like this stainless steel railing are protected from oxidation in wet and salty environments. Fatigue and fatigue corrosion resistance of stainless steels are enhanced by the use of duplex grades higher mechanical properties, chromium content and duplex microstructure s32304 316l 317 ln 316l 2. Since the structure has a decisive effect on properties, stainless steels have. Martensitic stainless steels the first stainless steels to be developed for commercial applications were martensitic steels were used for cutlery. The next most widely used grades are the ferritic steels such as aisi 410, followed by the molybdenumalloyed austenitic steels aisi 316316l. Material properties related with grain boundaries are expected to be improved by increasing frequency of csl boundaries and disruption of random boundary networks. It has good drawability the combination of low yield strength and high elongation permits fabrication into complex shapes. Stainless 316 contains more nickel than stainless 304, while 304 contains more. Type 304 stainless steel has good forming and welding properties as well as strong corrosion resistance and strength.
High ductility, excellent drawing, forming, and spinning properties. A number in parentheses indicates the year of last reapproval. Grade 304 enables it to be severely deep drawn without intermediate annealing, which has made this grade dominant in the manufacture of drawn stainless parts such as sinks, hollowware and saucepans. Mar 22, 2018 similar to 304, grade 316 stainless steel has high amounts of chromium and nickel. Stainless 302, 304, 304l, 305 specialty stainless steel. Other than 304 stainless steel, other common austenitic grades include the popular marine grade, 316 stainless steel and the machining bar grade, 303 stainless steel. This is an austenitic chromiumnickel alloy which practically means that it has a very high corrosion resistance. Jan 11, 2020 type 304 is the most widely used austenitic stainless steel. Properties given in this data sheet are typical for flat rolled products covered by astm a240a240m. Tables of technical properties international stainless steel.
604 1460 964 1208 1319 848 856 697 1077 1129 486 146 1514 1013 440 1156 496 383 1048 1436 862 804 471 516 377 333 661 1222 138 1108 1460 118 1466 907 245 902 1306 387