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. Grade 304 is the standard 188 stainless that you will probably see in your pans and cookery tools. 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. It is defined as a chromiumnickel austenitic alloy. Such dual certified product may be unacceptable for high. Stainless 302, 304, 304l, 305 specialty stainless steel. Sanmac 304304l is used for a wide range of industrial applications. Type 304 stainless steel has good forming and welding properties as. Both samples are sent in a mechanical lab for testing. Equivalent international stainless steel grades jsl designation gr indiais letter symbol germanydin designation japanjis gost ade uns designation usa canada aisi astm asme ferritic martensitic j405 s40500 405 x04cr12 1. The properties, applications and fabrication details are provided for 304 stainless steel. Saeansi 304 aisi 304 is the most popular type of stainless steel used today.
Alloys 304l is the most versatile and widely used alloy in the stainless steel family. The following table shows 304 stainless steel properties including mechanical properties and physical properties. Corrosion tests are not normally performed for nitronic 60 high strength. This allows equipment designers to use thinner gauge material for vessel construction. Chemical and physical properties are in accordance with en 10088. Ss304 and ss316 are one of the important stainless steel austenite material grades which are defined in american standards. Euro inox euro inox is the european market development association for 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. A sample of sus304 stainless steel from a japanese source was collected, and a sample of aisi 304 ss304 stainless steel from an american source is taken. Chemical and physical properties are in accordance with en 100881. This page displays only the text of a material data sheet. Mechanical properties duplex stainless steels have roughly twice the yield strength of their counterpart austenitic grades. Sus304 material is a japanese jis standard and the most commonly used stainless steel, containing 18% cr and 8% ni.
When you compare stainless steel 304 vs 316, experts conclude 316 stainless steel has almost the same chemical composition as that of 304 stainless steels. Mechanical properties 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. Stainless 302, 304, 304l, 305 united performance metals. Type 304, type 304l uns s30400, uns s30403 outokumpu. It is the standard 188 stainless that is commonly found in pans and cooking tools.
Jan 11, 2020 type 304 is the most widely used austenitic stainless steel. Stainless steel falls between that of types 304 and 316. Type 304 stainless steel has good forming and welding properties as well as strong corrosion resistance and strength. It is defined as a chromiumnickel austenitic alloy grade 304 is the standard 188 stainless that you will probably see in your pans and cookery tools. Black and white liquor vessels s31803, and s32304 pulp and paper industry. It is also referred to as 188 stainless steel, a2 stainless steel as per the iso 3506, or 304s15 as per the british standard. Big bolt nut provides chemical composition of ss 304 grade.
It has good drawability the combination of low yield strength and high elongation permits fabrication into complex shapes. Properties given in this data sheet are typical for flat rolled products covered by astm a240a240m. Austenitic stainless steel general characteristics. Machinability because of its desirable metallurgical properties of wear and galling resistance, evenmachining of nitronic 60 is not easy. Stainless steels stainless 304 properties, fabrication. Most widely used austenitic stainless steel, a versatile corrosion.
There is no major difference except that the two grades are referred in japanese and american grades. Type 304 and 304l grades of stainless steel pipe exhibit good machinability and have excellent weldability characteristics with or without the addition of filler metals. Alloy 304l a t300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel. The lower carbon content minimizes chromium carbide precipitation due to welding and its susceptibility to intergranular corrosion. A sample of sus304 stainless steel from a japanese source was collected, and a sample of. North version type 304, type 304l uns s30400, uns s30403. 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. It is the most versatile and most widely used stainless steel available, even though a wide range of alternatives are available. Typical uses include exhaust manifolds, furnace parts, heat exchangers, jet engine parts, pharmaceutical and photographic equipment, valve and pump trim, chemical equipment.
Stainless steel 304 and 304l are also known as stainless steel 1. Apr 11, 2018 sus 304 austenite stainless steel is usually referred to as the japanese name for ss304 or aisi 304 stainless steel. Stainless steel type 316 is widely used in applications requiring corrosion resistance superior to type 304, or good elevated temperature strength. Ss304 material properties stainless steel sheets suppliers. It can maintain good strength and heat resistance in high temperature and low temperature environments, and also has good corrosion resistance, weldability, cold workability and mechanical properties in the mild atmosphere. 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. The comparative analysis of mechanical properties of sus304 and ss304 stainless steel is shown in below table. Grade 304 enables it to be severely deep drawn without intermediate. Type 304 stainless steel is a variation of the base 188 grade, with a higher chromium and lower carbon. Machined parts for tube and pipe fittings, valves, components for pumps, heat exchangers and vessels, different tubular shafts in chemical, petrochemical, fertilizer, pulp and paper and power industries as well as in the production of pharmaceuticals. In some instances type 304 can be used in the aswelded condition. The saeansi 304 aisi 304 is the most commonly available and used type of stainless steel. Grade 304 stainless steel is the most versatile and the most widely used of all stainless steels. May, 2018 ss304 and ss316 are one of the important stainless steel austenite material grades which are defined in american standards.
The particular application for which stainless steel will be used determines the type and grade of stainless steel. Type 304 stainless steel is a t 300 series stainless steel austenitic. This article discusses the properties and applications of stainless steel grade 304 uns s30400. Some people although try to explain the difference in terms of mechanical 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. Mechanical properties of 304 grade stainless steel. Essentially nonmagnetic, becomes slightly magnetic when cold worked. It is common for 304 and 304l to be stocked in dual certified form, particularly in plate and pipe. Sus304 stainless steel material properties, chemical. Stainless steel 304, ss 310s, ss 316 chemical composition. To see matwebs complete data sheet for this material including material property data, metal compositions, material suppliers, etc, please click the button below. The tables below list ss 304 material mechanical properties including yield strength, tensile strength, elongation and hardness, etc. Stainless steel grade 304 uns s30400 material science. This is an austenitic chromiumnickel alloy which practically means that it has a very high corrosion resistance.
Production, examples and applications cold rolled steels difference between aisi 316, aisi 316l and aisi 316ln stainless steel electrical steel. Tables of technical properties materials and applications series, volume 5. The material conforms to astm a240, astm a666, fed qqs766, mils4043, uns s30403. Billet products special steels alloy steels plant rcs blooms mm. It has a minimum of 18% chromium and 8% nickel, combined with a maximum of 0. Type 304 stainless steel is an austenitic grade that can be severely deep drawn. Physical properties mechanical properties sheets, ribbons, wires, profiles, tubes, dimensions and tolerances on request. This article discusses the properties and applications of stainless steel grade 304 uns. Ss304 grade aisi 304 stainless steel properties, composition.
It is reasonable to expect specifications in these standards to. As ss 304 can withstand extremely corrosive environments this means it can be shaped, machined and welded relatively easily which is perfect when manipulating the material. Equivalent international stainless steel grades jsl designation gr indiais letter symbol germanydin designation japanjis gost ade uns designation usa canada aisi astm. Stainless steel grade 304 cs 304 304l technical data.
High ductility, excellent drawing, forming, and spinning properties. Ss 304l is available from hamilton precision metals as strip product in thicknesses from. Most widely used austenitic stainless steel, a versatile. 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. Nitronic 60 stainless steel uns s21800 electralloy. These alloys may be considered for a wide variety of applications where one or more of the following properties are important. As an integrated stainless steel producer, jfe produces stainless steel from steel. Stainless 316, 316l, 317, 317l specialty stainless steel. Type 304 is the most versatile and widely used stainless steel. It is also known as 188 stainless steel because of its composition, which includes 18% chromium and 8% nickel. It is an economical and versatile corrosion resistant alloy suitable for a wide range of general purpose applications.
These items have chemical and mechanical properties complying with both 304 and 304l specifications. It is common practice for 304l to be dual certified as 304 and 304l. Astm a479 grade 304 annealed austenitic stainless steel. This combination of properties is the reason for the extensive use of these alloys which represent nearly one half of the total u. Its chemical composition, mechanical properties, weldability and ncorrosionoxidation resistance provide the best allround performance stainless steel at relatively low cost. Ferritic stainless steels contain approxi mately 12% chromium. The low carbon chemistry of 304l combined with an addition of nitrogen enables 304l to meet the mechanical properties of 304. 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 when a high corrosion resistance is required. Care was taken to include as much information as possible about stainless steel flat products used throughout europe, for the informatio n of the user.
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