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. Type 304 has slightly lower strength than 302 due to its lower carbon content. Material composition of ss304 stainless steel sheets. Differences between 316l stainless steel pipe and 316 stainless steel pipe. It can be widely used in the manufacture of food processor, household appliances, lockset, kitchen and sanitary ware, door and window, medical apparatus. Note that some of these stainless steel grades are commonly referred to by. Sus 304j3 steel chemical,jis g4303 sus 304j3 stainless. Ss 304 contains approximately 18% chromium and 8% nickel. The following is a list of potential health effects for all hazardous elements that are possibly contained in our alloys, please refer to section ii. 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. The lower carbon content minimizes chromium carbide precipitation due to welding and its susceptibility to intergranular corrosion. Kad group of companies provide information about chemical composition of s. Type 321 stainless steel s also advantageous for high temperature service because of its good mechanical properties.
It is also known as 188 stainless steel because of its composition, which includes 18% chromium and 8% nickel. Kad group of companies provide stainless steel chemical composition table chart. Stainless steel sheet plate ss in grade 304, 304l, 304h. Microsoft word msds 304 304l stainless steel xylem. Aisisus 204 stainless steel is a kind of crnimn stainless,which is a popular gradematerial in stainless field. Chemical compositions of aisi astmasme and uns austenitic stainless steel grades introduction aisi astm asme and uns. The balanced austenitic structure of grade 304 enables it to be severely deep drawn without intermediate annealing, which has made this grade dominant in the manufacture of drawn stainless parts such as sinks, hollowware and saucepans. Stainless steel chemical composition, chemical composition. Ss400 chemical composition,ss400 mechanical properties. Chemical, coal, oil industry equipment with high resistance to grain boundary corrosion, building materials, heatresistant parts and components that are difficult to heattreat chemical composition of 304 and 304l ss. In some instances type 304 can be used in the aswelded condition. The 304 is a steel number for wrought steel, cast 304 is equivalent to cf8 of the us, scsa of the japan, or 1. Our 304 stainless steel casting has the price advantage and good antirust property due to its material. Stainless steel chemical compostion according astm a215, astm a26915, astm a31217, asme sa37615ed, astm a51116, astm a78917, astm a79016 nickel base alloys.
Weldability issue of aisi 202 ss stainless steel grade with. Hardness specification limits given are hrb rockwell b scale, hrc rockwell c scale. Mechanical property specification grade 301 other values for 301l and 301ln. Chemical compositions of aisi astm asme and uns ferritic stainless steel grades introduction aisi astm asme and uns. Type 321 stainless steel offers higher creep and stress rupture properties than type 304 and, particularly, type 304l which might also be considered for exposures where sensitization and intergranular corrosion are concerns. Pipes tubes, carbon steel ss in grade 304, 304l, 304h.
Tjc stainless is the most competitive manufacture and supplier of 204 stainless steel in thickness 0. Alloy 422 is used in applications such as compressors or steam turbines and also in aircraft parts, valves, high. Ratings of chemical behavior listed in this chart apply at a 48hr exposure period. This alloy presents a unique compromise, possessing deep drawability and sufficient stretch formability. Duplex stainless steels have structures that combine aspects of ferritic and. Its lower concentration of carbon makes it slightly weaker than 302 when in the annealed condition. Intergranular corrosion is the cracking that can occur along grain boundaries of steel in the presence of tensile stress. Alloy er 309 er 309l stainless steel er 309 er 309l. Otherwise referred to as grade 304 or type 304, it is the most commonly utilized grade of stainless. Pdf bare stainless steel type 304 and 316 alloys were exposed to atmospheric, underground and. These alloys also offer higher creep, stresstorupture and tensile strength at elevated temperature.
The molybdenum allows ss 316 to be more resistance to corrosion overall, with specific resistance against chlorine pitting. Oct 23, 2001 grade 304 is a standard 188 stainless. Aisi 304 is most versatile and most common type of steel, it is also termed as 188 which is given on the basis of its composition where 18% of nickel and 8% of chromium is used. Jis g4303 sus 304j3 stainless steel jis g4303 sus 304j3 stainless steel is a kind of austenitic stainless steel material. They have been used for many industrial, architectural, chemical, and consumer.
Stainless steel chemical compostion astm a2 a312 a269. Stainless 302, 304, 304l, 305 united performance metals. Welding of stainless steels and other joining methods, ssina. Other special requests about specification,please contact us. But it is very inexpensive so we can use it in indoor applications like indoor fabrication. This makeup ensures that ss 304 has a wellbalanced. Type 304 is the most widely used austenitic stainless steel. Aisi 202 ss stainless steel has similar mechanical property as compare to aisi 304 ss grade, but its ability to resist corrosion is somewhat less as compare to aisi 304 ss grade in chloride environment.
The difference between 304, 304l and 304h stainless steel. Because ss 304 contains 18% chromium cr and 8% nickel ni, its also known as 188 stainless steel. Stainless steel 304, ss 310s, ss 316 chemical composition. Characterised by high corrosion resistance in general atmospheric corrosive environments it exhibits excellent resistance to most oxidizing agents, general foodstuffs, sterilizing solutions. According astm a215, astm a26915, astm a31217, asme sa37615ed.
The low carbon provides resistance to sensitization during welding and other thermal processes. The carefully controlled analysis of type 304 enables it to be deep drawn more severely than types 301. Stainless 316, 316l, 317, 317l united performance metals. Any request for astm a240m ss304 s30400 stainless steel plate, please email. Type 316 is used in chemical processing, pulp and paper processing, food and. The material is also used throughout the power generation industry. Alloy 422 is a hardenable stainless steel designed for use at temperatures of up to 1200. The stainless steel alloys shown in the table on page 3 were heated as sheet samples for 60 minutes per inch of thickness at 1800f 982c for type 410 and at 1900f 1038c for types 420, 425 modified, and 440a, and then air cooled to room temperature. Foreign standards often by tensile structural steel to categories such as ss400 this is marked in japan, where 400 means that the minimum value of. A ferritic alternative to grade 304 304l weld stabilised. Refer to ssinas welding of stainless steels and other joining methods for best. Type 304l has slightly lower mechanical properties than type 304.
Pdf corrosion study of ss304 and ss316 alloys in atmospheric. Sus329j1 denotes austenitic and ferritic 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. Alloy 422 has good resistance to scaling and oxidation. Chemical composition of grade 304h stainless steel.
It is the most versatile and most widely used stainless steel available, even though a wide range of alternatives are available. The 188 stainless steels, principally types 304 and. Acroni 47 standard specification for stainless and heatresisting astm a480a 480m. Pdf in order to utilize the hybrid structure and reduce the cost and weight of the components. Type 304 has good processability, weldability, corrosion resistance, heat resistance, low. Similar resistance and corrosion protection as alloy 304 used for heavy welded equipment when annealing is not possible good oxidation resistance, on par with most other austenitic stainless steels higher carbon allows.
These components also give cause for 304 to be referred to as 188. Chemical compositions of aisi astmasme and uns austenitic stainless steel grades. The asquenched structure of fresh martensite must be. Good strength and toughness at cryogenic temperatures. The balanced austenitic structure of grade 304 enables it to be severely deep drawn without intermediate annealing. 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. Dissimilar materials of carbon steel sa508gr3 and stainless steel type ss304 l are widely used in. The data given is not intended to replace that shown in individual standards to which reference should always be made.
Stainless steel sheet grade 304, 304l, 304h,309s, our stainless steel. Asme sa240m ss304 s30400 stainless steel plate is widely used in railway vehicle,conveyor belt, bolt,pitting corrosion resistant materials,heat exchanger, condenser and son in oil, natural gas,chemical industry. Type 304 stainless steel has good forming and welding properties as well as strong corrosion resistance and strength. When it comes to variations between 304 and 304l stainless steel, the most essential thing to note is the latters greater immunity to intergranular corrosion. It has excellent forming and welding characteristics. Weldability issue of aisi 202 ss stainless steel grade. Alloy er 309309l is a stainless steel tig, mig and subarc wire used for welding. Type 304 stainless steel is a variation of the base 188 grade, with a higher. 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 carefully controlled analysis of type 304 enables it to be deep drawn more severely than types 301 and 302 without intermediate softening. Stainless steel grade 304 uns s30400 image credits. Type 304 stainless steel is the most versatile and one of the most widely applied of the 300 series stainless steels.
Ss 304 is considered the basic stainless steel alloy, composed of 18% chromium and 8% nickel. Chemical composition in percentage grade c max mn max p max s max. High strength, excellent corrosion resistance and excellent formability make. Aisi 304 grade stainless steel uns s30400 aisi 304 stainless steel uns s30400 is the most commonly used material in stainless steels, and is usually purchased in an annealed or cold worked state. Through heat treatment, high mechanical properties can be developed. The metal is characterized by its corrosion resistance, especially in cases of oxidation and salt water. Type 347h is a high carbon austenitic chromium stainless steel. The remainder of its composition is made up of carbon, manganese, silicon and very small amounts of phosphorous and sulfur. Found in applications that demand high temperature resistance, other major design features include. Chemical composition of control samples were analysed. 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. 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. Type 304 stainless steel is a variation of the base 188 grade, with a higher chromium and. Pipes tubes, carbon steel ss in grade 304, 304l, 304h, 316.
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