Cf3 ss304 weldability cf3 may be welded by the smaw, gtaw and gmaw processes. Grade 304l stainless steel for severely corrosive conditions. Ss304 grade aisi 304 stainless steel properties, composition. Ss 304 is a stainless steel with applications ranging from the manufacturing of chemical equipment, kitchen and cooking utensils and equipment, to surgical tools and textile dyeing equipment. Astm a240 asme sa 240 grade 304 sheet and stainless steel. The remainder of its composition is made up of carbon, manganese, silicon and very small amounts of phosphorous and sulfur. The chemical composition listed in table 1 was determined by xray fluorescence method and infraredcarbonsulfur spectrometer. Casting material stainless steel astm a351 cf8, astm a743. Type 304 is the most versatile and widely used stainless steel. Austenitic stainless steel is resistant to intergranular corrosion, used mainly in environments containing harmful chlorides, acids and urea. High strength, excellent corrosion resistance and excellent formability make.
The 304 grade stainless steel composition is given in table below. Big bolt nut provides chemical composition of ss 304 grade. Chemical compostion of stainless steel according to astm a312 astm a2 astm a269 a511 a376 a789 a790 din17456 din 17458 jis3459 3463 dnv. Characterised by very good corrosion resistance in general atmospheric corrosive environments, good resistance to mild marine and industrial. Jsl and its affiliated companies do not accept responsibility for errors or for information which is found to be ambiguous and. Most widely used austenitic stainless steel, a versatile. High strength for roll formed structural components. Type 304 stainless steel has good forming and welding properties as well as strong corrosion resistance and strength. Cf3ss304 applications impellors, propellers, pump casings, suction manifolds and valve bodies. 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. Cas no american chemical society, chemical abstracts service registry number 1 2 3 notes. Sand casting, precision investment casting lost wax casting. Ss304 and ss316 are one of the important stainless steel austenite material grades which are defined in american standards. Most astm and asme standards list the steel grades by their uns unified numbering system numbers but also make reference, where appropriate to the more general aisi american iron and steel institute grade designations.
They apply to all wrought product forms including ingots and semifinished material. 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. Pdf microstructure and mechanical properties of pressure. This combination of properties is the reason for the. Core 304l4307 is a lowcarbon alternative to core 3044301 that is giving an improved resistance against intergranular corrosion. Stainless steel 304, ss 310s, ss 316 chemical composition. Cf3ss304 weldability cf3 may be welded by the smaw, gtaw and gmaw processes.
Cf8 equal to ss304f304 and chinese standard gbt2100 zg0cr18ni9ti, gx5crnimo1910en102. May, 2018 ss304 and ss316 are one of the important stainless steel austenite material grades which are defined in american standards. Balancing of the alloying elements produces an austenitic structure in the annealed condition. The weld metal has good resistance to general corrosion. The annealing temperature range for type 321 is 1800 to 2000 f 928 to 1093 c. Manufacture process in qingdao casting quality company.
Ss 304 is considered the basic stainless steel alloy, composed of 18% chromium and 8% nickel. The metal is characterized by its corrosion resistance, especially in cases of oxidation and salt water. Core 3044301 is a classic 18% chromium, 8% nickel austenitic stainless steel and an allpurpose product with good corrosion resistance. Their chemical composition, mechanical properties, weldability and.
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. Where high strength is required at temperatures above 500c and up to. Stainless steel 304304l pipes and tubes can be offered in random lengths of up to 6meters long or cut to a specific length as ordered. Stainless steel chemical composition, chemical composition. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The technical information in this document describes typical characteristics and performance of the product. Jan 11, 2020 type 304 is the most widely used austenitic stainless steel. Ss304 chemical composition epub download big bolt nut provides chemical composition of ss grade. Microstructure and mechanical properties of pressurequenched. The datasheet and specification are summarized in the following tables including.
Composition values will vary within the concentration ranges mentioned above depending on the steel typestandard. These components also give cause for 304 to be referred to as 188. Good strength and toughness at cryogenic temperatures. Chemical composition of stainless steel ss304 chemical. Kad group of companies provide stainless steel chemical composition table chart. Type 304 is the most widely used austenitic stainless steel. Most widely used austenitic stainless steel, a versatile corrosion resistant alloy for general purpose applications alloy 304304l 062014. Depending on the application, the product may include trace elements other than the ingredients mentioned above. Casting material stainless steel astm a351 cf8, astm a743 cf8. Type 304 stainless steel has good forming and welding properties as. Astm a240 grade 304 sheet is austenitic stainless steel stainless sheet and comes in many sizes, thickness and finishes. While the primary purpose of annealing is to obtain softness and high ductility, this steel may also be stress relief annealed within the carbide precipitation range 800 to 1500 f 427 to 816 c, without any danger of subsequent intergranular corrosion. Mechanical properties of 304 grade stainless steel.
Both, core 3044301 and core 304l4307 are suitable for a wide variety of. It is also known as 188 stainless steel because of its composition, which includes 18% chromium and 8% nickel. Cf3 ss304 applications impellors, propellers, pump casings, suction manifolds and valve bodies. Cf8 equal to ss304 f304 and chinese standard gbt2100 zg0cr18ni9ti, gx5crnimo1910en102. We also offer a complete range of stainless steel 304304l butt weld fittings including 304304l elbow, 304304l bends, 304304l tees, 304304l reducers and caps. From a chemical or scientific standpoint the answer would be that 304 stainless steel contains 18% chromium and 8% nickel while 316 contains 16% chromium, 10% nickel and 2% moly. In order to assis t the reader in this selection, euro inox makes the following tables of technical properties available.
This grade is similar to j4 with higher cr for increased corrosion resistance. Deposited chemical composition % typical mechanical properties r. The starting material used in this study consisted of ss304 stainless steel rods with a diameter of 25 mm. Jsl j416cr grade is a chromiummanganese austenitic stainless steel with moderate amounts of copper, nickel and nitrogen. 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. Ss 304304l pipe manufacturers, seamless pipewelded tube. The addition of molybdenum provides pitting resistance in phosphoric acid, acetic acid and dilute chloride solutions and provides corrosion resistance in sulfurous acid. Stainless steel 304 and stainless steel 304l are also known as 1. Stainless 302, 304, 304l, 305 united performance metals. Cf8 is the cast equivalent of the popular wrought 188, or 304 grade of stainless steel.
Sus304 datasheet, sus304 mechanical properties, sus304 technical specifications. The chemical compositions and nominal mechanical properties of annealed austenitic stainless steels are given in table 8. The selection of the appropriate stainless steel grade for each applic ation is the result of variou s considerations. 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. 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. Otherwise referred to as grade 304 or type 304, it is the most commonly utilized grade of stainless. The datasheet and specification are summarized in the following tables including chemical composition and properties. Annealing of types ss304 and ss304l is achieved by heating to above 1900f for 60. Types 304 and 304l stainless steels useful for many applications. Stainless steel chemical compostion astm a2 a312 a269. Properties given in this data sheet are typical for flat rolled products covered by astm. Sus 304 is also known as 304 steel in other international standards. For severely corrosive environments or when welding is required, type 304l is preferred because of its greater immunity to intergranular corrosion. Microstructure and mechanical properties of pressure.
What is the difference between ss304 and ss316 stainless. The main difference between 304 vs 316 stainless steel is the composition and corrosion resistance, ss304 doesnt contain molybdenum while ss316 contains 23% molybdenum. Chemical compositions of aisi astmasme and uns austenitic stainless steel grades introduction aisi astm asme and uns. Dec 09, 2017 when a material grade is specified as sus grade steel, it means it is a japanese standard designation. Stainless 316, 316l, 317, 317l united performance metals. As to the designation c first letter means the service it is intended to be used in this case corrosion resistant service, but. The balanced austenitic structure of grade 304 enables it to be severely deep drawn without intermediate annealing. The analysis of the steel shall be carried out according to is 228 and its relevant parts or any other established instrumentalchemical method. Since the chemical composition and mechanical properties are the same for both type grade i. For more information, please check 304 vs 316 stainless steel.
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