Astm a240 asme sa 240 grade 304 sheet and stainless steel. Stainless steel chemical composition, chemical composition. Materials free fulltext microstructure and mechanical. Type 304l has slightly lower mechanical properties than type 304. Manufacture process in qingdao casting quality company. Analyses of phase composition, grain size and microstructure were performed using metallographic analysis, xray diffraction, rietveld refinement and transmission electron microscope tem. It is reasonable to expect specifications in these standards. Similar but not necessarily identical properties are specified for other products such as pipe and bar in their respective specifications. Aisi 304l is the low carbon version of 304 stainless steel, aisi 303 is a free machining steel, basically a variant of 304, which increases the phosphorus p and sulfur s content and improves the machinability.
Engraved hot rolled, annealed and pickled floor plate. Sand casting, precision investment casting lost wax casting. Revised april 2006 2 of 3 atlas specialty metals stainless steel bar 304304l corrosion resistance excellent in a wide range of atmospheric environments and many corrosive media. The main difference between type 304304l and type 316316l is the addition of 23 wt% molybdenum in the latter. January 25, 2011 page 1 of 8 material safety data sheet stainless steel 301, 302, 304, 304l, 305, 309, 310, 310s, 316, 316l, 321, 347, 350. In order to assis t the reader in this selection, euro inox makes the following tables of technical properties available. Sae 304 stainless steel is the most common stainless steel. Stress at which material strain changes from elastic to plastic deformation causing permanent bend. Cnpc powder is an experienced stainless steel powder manufacturer and supplier, with a range from ss304 to ss430l, including basic austenitic grade, martensitic grade and ferritic grade. Hardness is measured by hv or hrb only, depending upon the sheet thickness.
Appendices printed november 2000 1 s9 chemical analysis % speci. Petroleum engineers steel products manualstainless and heat. Electrochemical corrosion behavior of ss304 in artificial sea1. Jan 11, 2020 type 304 is the most widely used austenitic stainless steel. The analysis of the steel shall be carried out according to is 228 and its relevant parts or any other established instrumentalchemical method. Type 304 stainless steel is a t 300 series stainless steel austenitic. The addition of molybdenum provides pitting resistance in phosphoric acid, acetic acid and dilute chloride solutions and provides corrosion resistance in sulfurous acid. Dealer price of astm a240 type 304 stainless steel sheet, plate, coil and strips. Type 304 stainless steel an overview sciencedirect topics. Product in coil form, hot rolled with black finish. Cf8 is the cast equivalent of the popular wrought 188, or 304 grade of 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. It is also known as 188 stainless steel because of its composition, which includes 18% chromium and 8% nickel.
Type 304 is the most widely used austenitic stainless steel. 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. Due to their structure and chemical composition, stainless steel grades have different mechanical resistances, such as yield and ultimate strength. Stainless steel 304lss304l is an extra lowcarbon variation of ss304 with a 0. Ss304 chemical composition epub download big bolt nut provides chemical composition of ss grade. Functional products provide the corrosion resistance and mechanical properties of stainless steel with lower cost than 2b and ba materials, because they are. Stainless steel 304, ss 310s, ss 316 chemical composition. This disambiguation page lists articles associated with the same title formed as a letternumber combination. Both ss304 and ss304l have excellent resistance to a wide range of atmospheric, chemical and petrochemical, and food industry corrosions. Properties given in this data sheet are typical for flat rolled products covered by astm a240a240m.
It has a minimum of 18% chromium and 8% nickel, combined with a maximum of 0. Bulk ss304 polycrystalline materials with ultrafine microstructures were prepared via a highpressure selfheating melting and quenching method. Material in sheet form, hot rolled, annealed and pickled. Ss304 grade aisi 304 stainless steel properties, composition. In t he present work machining of ss304 was carried out on a lathe using coated carbide tool with cryogenic and flood coolants. Product in sheet form, hot rolled, annealed and pickled.
The steel contains both chromium between 15% and 20% and nickel between 2% and 10. They apply to all wrought product forms including ingots and semifinished material. Chemical composition of stainless steels flat products. Mechanical properties shown are for the commonly available form listed. Kad group of companies provide stainless steel chemical composition table chart. Cf8 equal to ss304 f304 and chinese standard gbt2100 zg0cr18ni9ti, gx5crnimo1910en102. Casting material stainless steel astm a351 cf8, astm a743 cf8. Stainless steel 316 is a chromiumnickel based steel that possesses increased levels of resistance against several substances, due to the addition of molybdenum in its composition. In addition to this, the nickel content in type 316 stainless steel is higher than that in type 304 stainless steel. Pdf corrosion study of ss304 and ss316 alloys in atmospheric. If an internal link led you here, you may wish to change the link to point directly to the intended article. Product in coil form, hot rolled, annealed and pickled. A discussion started in 2000 but continuing through 2018.
Carbon content is one of the most influencing parameter. It is less electrically and thermally conductive than carbon steel and is essentially nonmagnetic. Online inventory of asme sa 240 grade 304 material in thickness 1120mm. We are presently quoting a project that requires a design suitable for operation in a high saline environment. The molybdenum allows ss 316 to be more resistance to corrosion overall, with specific resistance against chlorine pitting. The selection of the appropriate stainless steel grade for each applic ation is the result of variou s considerations. Most widely used austenitic stainless steel, a versatile. Stainless steel grade chart atlas steels specialty steels product reference manual section 9. Nominal composition of ss304 and ss316 coupons used in this study. The chemical composition of these two types of stainless steels is given in table 5.
The main difference between 304 vs 316 stainless steel is the composition and corrosion resistance, ss304 doesnt contain molybdenum while ss316 contains 23% molybdenum. Most widely used austenitic stainless steel, a versatile corrosion resistant alloy for general purpose applications alloy 304304l 062014. Differences between ss304 and ss316 stainless steel. Oct 23, 2001 grade 304 is a standard 188 stainless. Ss304 is widely used in the industrial use, furniture decoration, food and medical industry, etc.
Grade 303 is the most readily machineable of all the austenitic grades of stainless steel. Please contact us if you require special steel types other than those shown in the table. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. Tables of technical properties international stainless steel. Material safety data sheet stainless steel 301, 302, 304. Material composition of ss304, material composition of ss304. Pdf bare stainless steel type 304 and 316 alloys were exposed to.
The machineable nature of grade 303 is due to the presence of sulphur in the steel composition. Stainless 316, 316l, 317, 317l united performance metals. The balanced austenitic structure of grade 304 enables it to be severely deep drawn without intermediate annealing. 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. It is the most versatile and most widely used stainless steel available, even though a wide range of alternatives are available. Tests were carried out at cutting speed of 200 and 250 mmin, and. Type 304 stainless steel has good forming and welding properties as well as strong corrosion resistance and strength. Stainless 302, 304, 304l, 305 united performance metals. Stainless steel powders ss304 ss304l metal powder suppliers. Electrochemical corrosion behavior of ss304 in artificial. The properties for grade 301 are specified for flat rolled product plate, sheet and coil in astm.