It is produced in greater quantity than any other austenitic stainless steel. Austenitic stainless steel 304304l kloeckner metals uk. Microstructural evolution and mechanical properties of type 304 l stainless steel processed in semisolid state furnacecooled samples indicates that the liquid fraction is relatively low in the water. Type 304l stainless steel is an austenitic chromiumnickel stainless steel that has extra low carbon and is non hardenable and nonmagnetic except by cold working. Microstructural evolution and mechanical properties of type. If you dont want screenshots to compress too much, save them as jpg files. Speedy metals information for 304 304l stainless steel sheet. Microstructure evolution in 304l stainless steel subjected. The dual certified 304 304l sheet meets specifications for both 304 and 304l stainless steel, and may be interchanged and used safely for either grades application. Alloy 304304h austenitic stainless steel plate sandmeyer steel. For many non welding applications, 304l can often be substituted for type 304 when the size desired is not available in type 304. Sae 304 stainless steel is the most common stainless steel. The allowable stress values used are shown in table a3 of the asme code for pressure piping b31.
Mechanical properties of austenitic stainless steel 304l. It is an economical and versatile corrosion resistant alloy suitable for a wide range of general purpose applications. As the chairman of our apparatus advisory committee, i am charged with developing specifications for all new fire apparatus for the syracuse fire department. These conditions may be conducive to localized penetration of the passive surface. Types 302 s30200, 304s30400, 304l s30403, and 305 s30500 stainless steels are variations of the 18 percent chromium 8 percent nickel austenitic. High strength, excellent corrosion resistance and excellent formability make. Unlike 304l, type 304h has a higher carbon content making the steel more suitable for use in applications where elevated temperatures are present. This could be attributed to the smaller holding time of the samples at the melting temperature. Stainless steel grade 304 is the most commonly used stainless steel.
Table 1 shows the principal alloying constituents of some selected austenitic stainless steel grades. Alloy 304304l is the most widely utilized 188 chromiumnickel austenitic stainless steel. Each alloy represents an excellent combination of corrosion resistance and fabricability. Download generated pdffile 1mb view core range datasheet. Deformation induced phase transformation of 304l stainless. Their chemical composition, mechanical properties, weldability and. Stainless steel grade 304ln is a nitrogenstrengthened version of stainless steel grade 304. Because of these characteristics, the 304l stainless steel alloy can be used in the as welded condition, even in highly corrosive conditions. Tables of technical properties international stainless steel. Type 304 stainless steel is an austenitic grade that can be severely deep drawn. Types 302 s30200, 304s30400, 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. In the annealed condition it is essentially nonmagnetic and becomes slightly.
Our stock capabilities range from cold rolled sheet, hot rolled sheet. Stainless steel 304, like 302, has good mechanical properties and corrosion resistance. The low carbon helps improve weldability as compared to the 304 as well as improved corrosion resistance. Type 304 stainless steel is the most widely used of the austenitic chromiumnickel stainless steels. Stainless steels are ironbase alloys containing 10. The particular application for which stainless steel will be used determines the type and grade of stainless steel. As aisisus 304ln s n% is higher than aisisus 304l,this material is with higher tensile strength than aisisus 304l stainless, is mainly used in coal,oil industries openair equipments,chemical goods. The lower carbon content minimizes chromium carbide precipitation due to welding and its susceptibility to intergranular corrosion.
Alloy 304304h uns s30400 s30409 is a modification of the most widely utilized 188 chromiumnickel austenitic stainless steel. Nicknamed 188 for its 18% chromium8% nickel makeup. The carbon content is controlled in the range of 0. Core 304l4307 is an austenitic stainless steel that belongs to the standard crni stainless. The enclosed documents are for information only and cannot replace reference to either en. Type 304 is the most versatile and widely used stainless steel.
To extract the experimental data and to predict the mechanical. The microstructure of nitrocarburized and postoxidized 304l austenitic stainless steel ss produced by a quenchpolishquench complex salt bath process qpq was investigated. Microstructure analysis of 304l austenitic stainless steel by. Approximate concentrations for industrial hygiene purposes ingredients cas number percent permissable exposure limit pel osha threshold limit value tlv acgih iron 7439896 45 70 % 10 mgm 3 5 mgm 3. Magellan metals is an industryleading provider of stainless steel 304h. Other than this slight variation in its composition 304l stainless. High ductility, excellent drawing, forming, and spinning properties.
It is common for 304 and 304l to be stocked in dual certified form, particularly in plate and pipe. It can be used in an as welded condition, while 302 must be annealed. This grade offers a good combination of strength, corrosion resistance, and. Just in case of exports, customary export packaging is completed in wooden boxes or cases. This article outlines the chemical and mechanical properties of grade 304h stainless steel from masteel. The lower carbon content in 304l minimizes deleterious or harmful carbide precipitation as a result of welding. These items have chemical and mechanical properties complying with both 304 and 304l specifications. Duplex stainless steels georgia institute of technology. The source standarts should always be checked for the specific purpose for each material, in case of doubt buy, sell, suppliers search product 304l online. This article outlines the chemical and mechanical properties of grade 304h stainless steel. The nitrocarburized coating as a whole consists of crn, fe 4 n and expanded austenite s.
It is considered the most versatile, most widely used, and is available in more forms and finishes than any other grade of stainless steel. Types 304 and 304l stainless steels useful for many applications. It is an economical and versatile corrosion resistant alloy suitable for a wide range of. It has only a general purpose corrosion resistance and may be susceptible to chloride stress cracking. Mechanical properties of austenitic stainless steel 304l and. Pdf aisi 304l is an austenitic chromiumnickel stainless steel offering the optimum combination of corrosion resistance, strength, and. Stainless steel 304 and 304l are also known as stainless steel 1. The principal charachteristics stainless steel grades 304 aisi eu code 304 x5crni1810 1. Stainless steel 304l pipes, aisi 304l pipes, ss 304l. Tables of technical properties of stainless steels flat products. We currently are finishing up the specifications package for a new large heavy rescue vehicle, and a question has arisen about the body material. In some instances type 304 can be used in the aswelded condition. Stainless steel grade 304n has better corrosion resistance than grade 302, and is mostly nonmagnetic in nature.
As aisisus 304ln s n% is higher than aisisus 304l,this material is with higher tensile strength than aisisus 304l stainless, is mainly used in coal,oil industries openair equipments,chemical goods ship,which has a high request of resistance for grain boundary attack. Types 304, 304l and 304h are the most versatile and widely used of all the stainless steels. It is the standard 188 stainless that is commonly found in pans and cooking tools. Nov 21, 2009 type 304l is a lower carbon variant of grade 304 the steel can be welded without the resulting issue of carbon precipitation precipitation of chromium carbide as heat is applied during the welding process which depletes the chromium element of the steel thus reducing its anticorrosiveoxidation effectiveness. It has excellent forming and welding characteristics. Stainless steel 304h is an economical and versatile corrosion resistant alloy that is suitable for a wide range of generalpurpose applications. Stainless steel grade 304, 304l, 304h pitting resistance. Cut to length round bar, cut to size plate, cut to size sheet, 1. This property has resulted in 304 being the dominant grade used in applications like sinks and saucepans. As far as stainless steel grades go, grade 304 is the standard 188 of the stainless family. Ive been doing it for about two months, got a new job, and theyre commissioning me to rewrite this program thatll create a window in a round, indexed 304 stainless steel part. Duplex stainless steel embrittlement ur2202 ati2102 nssc2120 ldx2101 2304 similar to 304l similar to 304l similar to 304l equivalent to 304l, not always equivalent to 316l equivalent to 304l and 316l lean dss corrosion resistance lean duplexes contains little or no molybdenum lower corrosion resistance than 2205. In the annealed condition it is essentially nonmagnetic and becomes slightly magnetic with the application of cold work. Approximate concentrations for industrial hygiene purposes ingredients cas number percent.
This grade offers a good combination of strength, corrosion resistance, and fabricability. Stainless steel when health comes first austenitic stainless steels consist primarily of iron, 16 28 % chromium 1 and up to 35 % nickel 1. Guru gautam steels is one of the leaders amongst manufacturers, exporter and supplier of stainless steel seamless 304l pipes, astm 304l tubes, ss 304l tubes, ss 304l erw pipes, stainless steel welded 304l tubes, ss 304l capillary pipes, nr. It is common for 304 and 304l to be stocked in dual certified form, particularly in plate. Stainless 302, 304, 304l, 305 specialty stainless steel. Stainless steel 304l help ive been doing it for about two months, got a new job, and theyre commissioning me to rewrite this program thatll create a window in a round, indexed 304 stainless steel part. Functional products provide the corrosion resistance and mechanical properties of stainless steel with lower cost than 2b and ba materials, because they are. As american aisi basic grades, the only practical difference between 304 or 316 and 304l or 316l is carbon content. Alloy 304l a t300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel. Type 304l is used in many applications including welded tubes, bellows, food and medical applications.
It is considered the most versatile, most widely used, and is available in more forms and finishes than any. Grade 304l stainless steel for severely corrosive conditions. In this work, two grades of austenitic stainless steel are investigated, namely ass 304l and ass 316l. For more complete details please refer to the relevant specification the bs en specifications for stainless steel are listed on a separate datasheet. The steel contains both chromium between 18% and 20% and nickel between 8% and 10. Stainless steel 304l download 304 is the original 188 stainless. Pitting resistance is important, mainly in applications involving contact with chloride solutions, particularly in the presence of oxidizing media. Austenitic stainless steel 304304l asd metal services offer one of the most comprehensive ranges of 304 304l stainless steel in the uk. Comparison of 304 or 316 and 304l or 316l type compositions and effect on corrosion resistance introduction composition ranges. Alloy 304304l uns s30400s30403 is the most widely utilized 188 chromiumnickel austenitic stainless steel. 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. Alloys 304l is the most versatile and widely used alloy in the stainless steel family. In some cases ni can be replaced by other austenite forming elements like mn, n and cu. Stainless steel 304l help first of all, im a noob at machining.
To extract the experimental data and to predict the mechanical properties, the tensile tests are conducted at three different strain rates 0. Deformation induced phase transformation of 304l stainless steel and its structural characterization a thesis submitted in partial fulfilments of requirements for the award of the. Speedy metals information for 304304l stainless steel sheet. Nov 21, 2009 unlike 304l, type 304h has a higher carbon content making the steel more suitable for use in applications where elevated temperatures are present. Core 304l4306 is an austenitic stainless steel that belongs to the standard crni stainless. Type 304l stainless steel type 304l stainless steel is an extralow carbon version of the 304 steel alloy. Alloy 304304l austenitic stainless steel plate sandmeyer steel. Microstructural evolution and mechanical properties of type 304 l stainless steel processed in semisolid state furnacecooled samples indicates that the liquid fraction is relatively low in the waterquenched samples. Microstructural evolution and mechanical properties of.
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