Similar but not necessarily identical properties are specified for other products such as pipe and bar in their respective specifications. These alloys may be considered for a wide variety of applications where one or more of the following properties are important. However, when comparing the various stainless families with carbon steels, many similarities in properties exist, although there are some key differences. Each alloy represents an excellent combination of corrosion resistance and fabricability.
Pdf tensile and fracture behaviour of very thin 304 stainless steel. Chemical composition of stainless steels flat products mechanical properties of stainless steels flat products physical properties of stainless steels the attached collection of data reflects inquiries directed to stainless steel development associations. Learn more here about its applications and properties. In essence, steel is composed of iron and carbon, although it is the amount of carbon, as well as the level of impurities and additional alloying elements that determine the properties. Essentially nonmagnetic, becomes slightly magnetic when cold worked. 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. Stainless steel grade 304, 304l, 304h representative creep rupture properties.
Type 304 stainless steel has good forming and welding properties as well as strong corrosion resistance and strength. Pdf specimen with rectangular crosssection usually used to measure the tensile properties of materials. 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. Hardness is measured by hv or hrb only, depending upon the sheet thickness. Introduction stainless steels and special metals austenitic stainless steels this group contains at least 16% chromium and 6% nickel the basic grade 304 is referred to as 188 and range through to the high alloys or super austenitics such as 904l and 6% molybdenum grades. Our gangsteel have min 600tons stock size for each size stainless steel. Stainless 302, 304, 304l, 305 specialty stainless steel. It has good drawability the combination of low yield strength and high elongation permits fabrication into complex shapes.
Both aisi 304 stainless steel and aisi 316 stainless steel are iron alloys. Types 304 and 304l stainless steels useful for many applications. Well known stainless steel as well, with very high corrosion resistance, it is usually reserved to very aggressive. We supply 304 stainless steel washer at great price. T304 can be easily welded and is the choice for many deep drawn, spun or formed parts due to its high ductility. Types 304 and 304l are the most versatile and widely used of all the stainless steels. Euro inox makes the following tables of technical properties available. They have a moderately high 95% of their average alloy composition in common. Left hand side of is minimum value right hand side of is maximum value eg. Gangsteel is specialized in supplying asme sa240 steel plate in a240 304. Properties at subzero temperatures fatigue properties when looking into the fatigue properties of austenitic stainless steels, it is important to note that design and fabricationnot material, are the major contributors to fatigue failure. Hardness, rockwell b 70 70 hardness, vickers 129 129 converted from rockwell b hardness. This work deals with the assessment of mechanical properties of these. It is the most versatile and most widely used stainless steel available, even though a wide range of alternatives are available.
Type 304 is the most versatile and widely used stainless steel. Stainless steel was selected for its resistance to corrosion. The austenite grains are extremely small when first. In some instances type 304 can be used in the aswelded condition. Stainless steel type 304304l rolled metal products. 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. In case of complex machining operation, due to the limited machinability of the steel 304, consider to use a free machining grade px, 316 ls or a modified 316 l grade pm. Asme sa240 standard specification for chromium and chromiumnickel stainless steel plate, sheet, and strip for pressure vessels and for general applications. Even if its not listed here, we might have what you need. Datasheet for steel grades stainless steel sus304 sus304 standard number. Room temperature mechanical properties minimum mechanical properties for annealed alloys 304 and 304l austenitic stainless steel tube as required by astm specifications a240 and asme specification sa240 are shown below. The saeansi 304 aisi 304 is the most commonly available and used type of stainless steel. Types 302 s30200, 304 s30400, 304l s30403, and 305 s30500 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. Stainless steels stainless 304 properties, fabrication and applications.
It has excellent forming and welding characteristics. The low carbon chemistry of 304l combined with an addition of nitrogen enables 304l to meet the mechanical properties of 304. Chances are that you will have interacted with something made from 304 stainless steel in your daily routine. Process equipment in mining, chemical, cryogenic, food, dairy, and pharmaceutical industries. Most widely used austenitic stainless steel, a versatile. There are 34 material properties with values for both materials. A new unified numbering system uns has been developed that applies. Types 316 uns s31600, 316ls31603, 317 s31700, and 317l s31703 are molybdenum bearing austenitic stainless steels which are more resistant to general corrosion and pittingcrevice corrosion than the conventional chromiumnickel austenitic stainless steels such as type 304.
The datasheet and specification are summarized in the following tables including. Characterised by high corrosion resistance in general atmospheric corrosive environments it exhibits excellent resistance to most oxidizing agents, general foodstuffs, sterilizing solutions. This combination of properties is the reason for the extensive use of these alloys which represent nearly one half of the total u. These were chosen as some of the most common materials used in cryogenic systems in a variety of fields. According to the world steel association, there are over 3,500 different grades of steel, encompassing unique physical, chemical, and environmental properties. Good mechanical properties and corrosion resistance stainless steel 304 available in. Typical physical properties for annealed grade 304 stainless steels are given in table 3. Pdf in order to utilize the hybrid structure and reduce the cost and weight of the.
On heating steel through its critical range, transformation to austenite takes place. The following table shows 304 stainless steel properties including mechanical properties and physical properties. Stainless steels stainless 304 properties, fabrication. Typical uses include exhaust manifolds, furnace parts, heat exchangers. 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. Strength properties of annealed austenitic stainless steels are relatively low and. 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.
The properties, applications and fabrication details are provided for 304 stainless steel. Their chemical composition, mechanical properties, weldability and. The balanced austenitic structure of grade 304 enables it to be severely deep drawn without intermediate annealing. Cryogenic material properties databasecryogenic material. Stainless 316, 316l, 317, 317l specialty stainless steel. Type 304 stainless steel is a variation of the base 188 grade, with a higher chromium and lower carbon content. Grain size and its influence on materials properties. Sometimes referred to as 188 steel, 304 stainless steel is the most commonly used stainless steel in manufacturing.
High ductility, excellent drawing, forming, and spinning properties. It is also known as 188 stainless steel because of its composition, which includes 18% chromium and 8% nickel. Typical uses include architectural mouldings and trim, kitchen equipment, welded components of chemical, textile, paper, pharmaceutical and chemical industry processing equipment. Type 304 304l is the modern version of 188 stainless steel containing approximately 18% chromium and 8% nickel and is the most commonly specified stainless steel used throughout the world. Pdf investigation on aisi 304 austenitic stainless steel. Material properties thermal conductivity widely divergent values of thermal conductivity for the same material are often reported in the literature. General information mechanical properties of steel condition, strength, hardness, machinability stainless steels. The quickness of this process depends on the amount of chromium in the steel. It has slightly lower mechanical properties than type 304. Properties of stainless steels the physical and mechanical properties of stainless steels are quite different from those of commonly used nonferrous alloys such as aluminum and copper alloys. This paper presents the investigations carried out to study the microstructure and mechanical properties of aisi 304 stainless steel and aisi 4140 low alloy steel joints by gas tungsten arc welding gtaw, electron beam welding ebw and friction.
For more information, please check 304 vs 316 stainless steel. The mechanical properties of stainless steel how these are determined, and the factors which influence their values by david p. Please contact us if you require special steel types other than those shown in the table. Sn fatigue properties of a stable highaluminum austenitic stainless steel for hydrogen applications. Type 304 is the most widely used austenitic stainless steel. This is an austenitic chromiumnickel alloy which practically means that it has a very high corrosion resistance. Pdf sn fatigue properties of a stable highaluminum. It is an economical and versatile corrosion resistant alloy suitable for a wide range of general purpose applications. It is common practice for 304l to be dual certified as 304 and 304l. Tensile properties of 100 m thickness 304 stainless steel sheet.
Grain size specifics the grain size of carbon and alloy steels is generally understood to mean prior austenitic grain size. Datasheet2, mechanical properties the tables below list ss 304 material mechanical properties including yield strength, tensile strength, elongation and hardness, etc. Type 304 304l is a versatile, general purpose stainless steel with good resistance to atmospheric corrosion, and to many chemicals and food and beverages. Available forms ak steel produces type 304 stainless steel in thicknesses from 0. Typical uses include architectural moul dings and trim, kitchen equipment, welded components of.
Pdf mechanical characterization of sa508gr3 and ss304l. Jignesh steel carries a variety of 304 stainless steel washer from carbon steel, stainless steel and high nickel alloy f467 nicu 400 monel and commercial 188 304, 316 stainless steel. Well known stainless steel grade, very close to the 201 grade but with lower mechanical properties. Hardness, knoop 8 8 converted from rockwell b hardness. We are a family owned, full line fastener distributor specializing in industrial products for companies involved in equipment manufacturing, mining, oil. A tensile test was performed on the carbon steel sa508gr3. 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 310, 310s, 310h high temperature resistant. It is also referred to as 188 stainless steel, a2 stainless steel as per the iso 3506, or 304s15 as per the british standard. The lower carbon content minimizes chromium carbide precipitation due to welding and its susceptibility to intergranular corrosion. Physical properties metric english comments density 8 gcc 0. Torque value based on 75% of proof load and finish as recieved steel notes. This article discusses the properties and applications of stainless steel grade 304. Stainless steel grade 304 is the standard 188 18% chrome, 8% nickel austenitic stainless steel.
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