The melting point of stainless steel 304 is reached at temperatures ranging between 2,550 F - 2,650 F (1399 C - 1454 C). Type 304/304L is the fashionable model of "18-eight" stainless steel containing roughly 18% chromium and 8% nickel and is probably the most generally specified stainless-steel used all through the world. . Stainless Steel Fasteners: The 304 Series. The high heat resistance of AISI 304 stainless steel and oxidation make it ideal for temperatures up to 870 degrees Celsius. Grade 304 stainless steel, also called 18-8 stainless steel, is a non-magnetic alloy that contains 18% chromium and 8% nickel. AISI 304 stainless steel composition mainly consists of 18% chromium and 8% nickel, and other stainless steel qualities enhancing alloys include nickel, manganese, silicon, nitrogen, carbon, phosphorus, and sulphur. Grade 304 stainless steel is probably the most commonly used grade of austenitic stainless . System description: A240 304 stainless steel is the most widely used chromium-nickel stainless steel. SS 304 is widely used in the industrial use, furniture decoration, food and medical industry, etc. 720. In this instance 304L is recommended due to its resistance to carbide precipitation. It has good drawability - the combination of low yield strength and high elongation permits fabrication into complex shapes. . 304 is a low carbon version of 302, or better known as 18-8. The low carbon chemistry of 304L . 316 stainless steel is more resistant to corrosion, especially from chlorides, than 304 stainless steel. Your email address will not be published. Below is the application range of stainless steel in chloride ion medium for reference. A popular on (I believe used by the ASME Code) is Tresca or maximum shear stress theory of failure. If we analyze industrial uses, stainless steel grades 304 and 304H are the most widely used across the globe. Your email address will not be published. Type 304 grade stainless steel composition is given in table below. AISI 304 stainless steel (UNS S30400) is the most widely used austenitic chromium-nickel stainless steel. Notes: Material SS304 mechanical properties are listed in the data sheet below including tensile strength, yield strength, elongation, reduction in area, Brinell and Rockwell hardness, etc. However, the closer grade 304 stainless steel reaches its melting point, the more tensile strength it loses. Chinese stainless steel grade 0Cr18Ni9 is an old designation, and has been replaced by the new name 06Cr19Ni10. This puts 304 on the lower end of the strength spectrum. Type 304 stainless steel is not magnetic, but may be slightly magnetic after cold working. The numbers classify the grades of steel based on their composition, physical properties, and applications. 304 and 316 stainless steel fasteners are not the only material options available for consumers. It has the chromium and nickel content of 18-8 stainless steel but contains a maximum of 0.08% carbon as well. 304 stainless steel Tensile strength: 500-700 Mpa. 304L is a modified low-carbon stainless steel based on 304, used to improve the corrosion resistance after welding, and has excellent intergranular corrosion resistance after welding or stress relief. Aluminum. A stainless steel bolt has the same PSI rating as a . 21.5. The melting point of 304 stainless steel is higher than its 316 stainless steel counterpart, ranging between 2,550 - 2,650 F or 1399 - 1454 C. Tensile Strength: Yield (Proof) 230 to 860 MPa 34 to 120 x 10 3 psi. A240 304 Stainless Application scope. So, 18/8 contains 18% chromium and 8% nickel. In each case, the first number indicates the percentage composition of chromium. Stainless steel is the most useful element operated in various industries, but when it comes to choosing the right stainless steel grade, industries get riddled. SS 304 has excellent welding performance and does not require preheating, but requires similar filler material composition but high alloy content. 25 percent low carbon steel (For instance, AISI 304) 25 percent to 0.60 percent medium carbon steel (Example: AISI 409) Steel with a high carbon content of 0.60 percent to 1.25 percent (Example: AISI 440C) . Posted by Arthur Harris & filed under Company News.. 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. Grade 304 is the standard "18/8" stainless that you will probably see in your pans and cookery tools. Where high strength is required . 18/8 actually refers to the amount of chromium and nickel in the alloy - 18% chromium and 8% nickel. 304 Stainless Steel Yield Strength and Tensile Strength, Applications & Common Uses of Stainless Steel, Annealed, Cold finished, Dia 1/2 in (12.7mm), Annealed, Cold finished, Dia > 1/2 in (12.7mm). It is frequently used as a construction material up to about 1500 degrees Fahrenheit but provides improved high temperature strength when exposed to temperatures exceeding 800 degrees Fahrenheit. Advantages. Alloy 304 is the most versatile and widely used alloy in the stainless steel family. The tables below summarize the material SS 304 properties data sheet and specifications including chemical composition, physical and mechanical properties, etc. The chromium provides a corrosion and oxidation resistance, however it can tarnish. Austenitic Cr-Ni stainless steel. SS304 material is made into a great many intermediate products such as steel sheet & plate, steel tube & pipe, steel bar & flat, rod & wire, etc. Fabrication. High tensile strength; Stainless steel comes in a variety of grades. Sensitization occurs when type 304 austenitic stainless steel is heated between 425 and 815 C (800-1500 F). H in 304H stands for High carbon content which denotes an increment of strength in handling high temperatures. Its lower concentration of carbon makes it slightly weaker than 302 when in the annealed condition. The Nut and Bolt Solution Series. So, precautions are needed to avoid corrosion resistance. Alloys of AISI 304 can also be easily welded with an offering of NO-QUALITY-CHANGE corrosion resistance and low weightage, making AISI 304 a popular choice even for welding industries such as metal sheeting, wire mesh products, and steam piping. Accept Bolt strength is rated in PSI (pounds per square inch). Type 304 is the most versatile and widely used stainless steel. 304L Stainless Steel Chemical Composition (in %). ASTM A240/A240M Standard Specification for Chromium and Chromium-Nickel SS Plate, Sheet, and Strip for Pressure Vessels and for General Applications. That doesnt mean 304L cant get participated in any industrial uses, rooming a matter of fact 304L is massively considered more useful than other stainless steel grades for a way easier welding process by minimizing the carbide precipitation even in severely corrosive environments. SS304 stainless steel chemical composition is listed in the table below. 304 and 304/L (UNS S30400 & UNS S30403) are austenitic alloys of stainless steel bars. Type 304 stainless steel typical forging temperature is 925-1260 C (1700-2300 F). Save my name, email, and website in this browser for the next time I comment. Tensile strength identifies the point at which steel breaks under stress. It also has excellent low temperature . When the weldment is not suitable for full annealing, the residual stress of SS 304 grade stainless steel can be moderately reduced below 450 C (840 F). 304 stainless steel plate has a minimum tensile strength of 75 ksi and a minimum yield strength at 0.2% of 30 ksi. Stainless steel 304 and stainless steel 304L are also known as 1.4301 and 1.4307 respectively. F), Coefficient of thermal expansion (CTE), 10, Annealed, Cold finished, Dia 1/2 in (12.7mm), Annealed, Cold finished, Dia > 1/2 in (12.7mm). It is determined by conducting an experiment with a sample and then dividing peak force by cross-sectional area. Petrochemical industry: filter equipment, oil and gas pipelines. A2 (304, 18/8) is an austenitic steel and is non-magnetic. Being the best fit for high-temperature applications 304H stainless steel offers high strength for temperatures from 550 C to 800 C. An attribute of good oxidation resistance makes Stainless Steel 304H ideal even for periodic use at 870 C with continuous services till 925 C. 304H Stainless Steel Chemical Composition (in %): Increase in nitrogen, Improvement in yield strength! Alloy 304V is a double melted austenitic stainless steel wire. Across the world, Stainless Steel 304 Fasteners is referred by its trade names that include grade 18-8, or UNS S30400. Properties of stainless steel which need to be assured contain many matters such as the amount of nickel, chromium, workability, hardness, yield strength, and top of all corrosion resistance that can work constantly at every temperature without creating an effect on machinery. AISI SAE ASTM 304 stainless steel cant be hardened by heat treatment but can be hardened by cold working. Stainless steel ferritic - tensile strength ranges from 65,000 to 87,000 psi; Carbon Steel Vs. The 304 stainless steel fasteners series is made up of approximately 18% chromium and 8% nickel (18-8). For more information, please check 304 vs 304L stainless steel and 304 vs 316 stainless steel. As we noticed through our blog, the need for stainless steel is increasing worldwide, and to meet the needs of each of their industries requirements Vishwa Stainless Steel Pvt. Proof stress: 190 Mpa (min.) This steel has good forming and welding properties and also high . These alloys are the most familiar and most frequently used alloys in the stainless steel family. Basically, 304LN is an austenitic grade with the boom of nitrogen to 304 stainless steel grade. It is defined as a Chromium - Nickel austenitic alloy. This melting practice minimizes voids and contaminants while yielding a more uniform chemistry. 304 stainless steel round bar provides enhanced oxidation and corrosion protection for countless applications. Better corrosion resistance than Type 302. Your email address will not be published. Type 304 and 304L grades of stainless steel pipe exhibit good machinability and have excellent weld-ability characteristics . What is the minimum tensile strength of stainless steel? Continuous processing at temperatures such as 425C 860C isnt recommended. Essentially non-magnetic, becomes slightly magnetic when cold worked. Therefore, its corrosion resistance is lowered. In applications where greater strength and hardness are required. This is another widely-used austenitic stainless steel alloy, and it is famous thanks to its durability, tensile strength, and resistance to oxidation and corrosion. The most widely used types of stainless steel are graded as 304 and 316. To learn more about the differences among stainless steels, feel free to read our article on the type of stainless steel. Therefore, more power and lower processing speed are required, resulting in shortened tool life and difficulty in obtaining a smooth surface. For more data sheet, you can check 304 stainless steel properties. Non-magnetic Most stainless steel ordered around the world is Grade 304. A2 stainless steel is often referred to as 304 or 18/8 Stainless. Our Supply Range. 304 vs 316 Stainless Steel Properties 304 Type stainless steel. Due to its composition, corrosion and heat resistance and its mechanical properties, grade 304 is used in all fields of industrial, commercial and domestic manufacturing. They exhibit excellent corrosion resistance to a wide range of corrosive environments. Groove Industrial 1/4-inch Stainless Steel T304 Wire Rope products are manufactured to the highest standards to endure tough conditions. Examples of ASTM 304 stainless steel rust environment: Sea water, sea wind, salt, perspiration, etc. Thus, practically all 304L is produced as dual certified 304/304L, meaning it . Type 304 has a maximum carbon of 0.07% . We use cookies to ensure that we give you the best experience on our website to personalize content and adverts and to analyze our traffic using Google Analytics. It also shares many similar properties to 18-8 stainless steel, including . This alloy can withstand attack in a range of corrosive media, and its durability makes it easy to sanitise, meaning it is ideal for kitchen and food applications. As the conclusion of the whole stainless steel fabrication process, an entire annealing process is required that can reduce its internal stresses and optimise corrosion resistance. Latent Heat of Fusion, J/g: 290: 270: Maximum Temperature . Below is a chemical breakdown of 304 steel: <=0.08% carbon; 18-20% chromium; 66.345-74% iron <= 2% manganese; 8 . We are creating other entries for more specific heat treatments and forms. Both AISI 304 stainless steel and AISI 416 stainless steel are iron alloys. 304 stainless steel plate has an elongation of 40%. Abrading & Polishing; . The following datasheet and specification show SS 304 stainless steel properties including physical properties and mechanical properties. These grades of austenitic stainless steels are the most versatile and widely used stainless steels. 304H stainless steel has a higher carbon content, which makes it ideal for applications requiring good mechanical properties at elevated temperatures. Food industry: tableware and kitchenware such as stainless steel woks, steamers, pans, forks, chopsticks, baking trays, bbq grills, dairy containers, sterilization baskets. The Pros and Cons of 304 vs 316 Stainless Steel. Such that Stainless Steel S30400 Threaded Bolt is supplied worldwide by us. It is the most widely used of all the stainless steels because of its combination of high strength and corrosion resistance. 304 Stainless Steel Alloy has useful applications in welding . What is the ultimate shear strength of stainless steel 316 n 304 n 302? The steel patented by Eduard Maurer and Benno Strauss is known as austenitic steel. Grade 304 is the most commonly used stainless steel. The following data sheet summarize the minimum strength of SS304 in various versions of ASTM standards. This mismatch can thoroughly reduce the AISI 304 stainless steel workability and corrosion resistance efficiency. Grades 304, 304L, 304H UNS-S30400, S30403, S30409. Stainless steel bright bars manufactured by Vishwa Stainless Steel Pvt. It contains minimum 10.5% to 11% chromium amount by mass, forming a chromium oxide layer which is inert. AISI 304 stainless steel is widely used in petroleum & chemical industry, metallurgical machinery, aerospace industry, food processing equipment, instruments, household appliances and hardware manufacturing industries. Stainless steel 304 round bar is a type of 18/8 stainless steel, but with a higher chromium and lower carbon content. It is essentially non-magnetic when annealed and may become slightly magnetic when cold-worked. The thinner sheets have higher strength values. The applications include construction and other commercial applications as well. AISI 316 is better than 304 in certain properties, corrosion resistance and heat resistance, etc. The Benefits of 316 Stainless Steel. This stable arrangement of the AISI 304 stainless steel composition makes it ideal for corrosion resistance and durability. Grade 303 stainless steel's yield strength runs about 415 MPa. The hardened form of 304 stainless steel cannot be achieved by heat treatment. As the predominant choice for hydraulic and . Copyright 2022 - 304 Stainless Steel. For more data sheet, you can check 304 stainless steel properties. SS 304 may require subsequent reannealing after soldering or heat treatment to achieve optimum corrosion resistance, softness and ductility. Stainless commonly comes in grades 18.8 (304) or T316. It is the most used austenitic stainless steel. Carbon and chromium combine to form chromium carbide, which precipitates at the crystal boundary, so the Cr content near the grain boundary is greatly reduced, and becomes a Cr-depleted region. The ASME SA554 Gr 304 Seamless Square Tube is a high-strength grade produced as hot steel billets are passed through the material grade to precisely shape it in the required sizes. A2 Stainless Steel. Below we will go through each of them with a detailed form of their uses and applications. GB/T 3280: 2015 Cold rolled stainless steel plate, steel sheet and steel strip. The alloy is initially electric-arc melted followed by a Vacuum Arc Re-melt (VAR). Stainless steel 304 cannot be readily hardened by thermal treatments but can easily be annealed which increases its workability and AISI 304 stainless steel yield strength. AISI 304 Stainless Steel Equivalent Grade. SS304 is suitable for cold working operations including cold heading, cold drawing, cold extrusion and cold riveting, but it is more difficult than cold working of carbon steel. The tag of AISI on it stands for (American Iron and Steel Institute), identifying its commercial availability of stainless steel or chromium steel. 304 (S30400) 304L (S30403) . . For example, 410 SS has a low alloy content, meaning that there . Final products such as all kinds of kitchen ware, tableware, medical device, machinery and parts, wire mesh, filters, architectural and decorative products, etc. This makes it perfect for machinery like engines, ship propellers. This refinement to the purity and homogeneity of the metal allows for use in . Stainless steel 304 has good resistance to oxidation in intermittent service up to 870C and in continuous service to 925C. It is important to understand the mechanical properties of 304 and 304L stainless steel plate, ASTM A240. To calculate the weight of 304 stainless steel plate in kgs use the formula: length (m) x width (m) x thickness (mm) x 7.93. Below are some of the many bolt grades of stainless steel that we carry. It is an austenitic, corrosion-resistant steel with excellent strength, toughness, fabrication characteristics and weldability. Datasheet 1, AISI 304 stainless steel composition, Datasheet 3, ASTM 304 Stainless Steel Properties Mechanical Properties. This is the reason for non-corrosive, anti-rusting attributes of stainless steel. Use ultra-low carbon austenitic stainless steels, such as. The chromium content in the alloy promotes excellent corrosion resistance, high strength-to-weight ratio, and remarkable ductility. Type 304 stainless steel annealing temperature range is 1010-1065 C (1850-1950 F),1040 C (1900 F) is recommended and then rapidly cooled. 18-8 Stainless Steel: (18% Chrome, 8% Nickel, .08% Maximum Carbon) - 18-8 Stainless refers to 300 series stainless steel. The low carbon version, 304L, may be required for full corrosion resistance when thicker sections are welded. Grades 304 and 304L stainless steel are the most versatile and commonly used austenitic chromium-nickel alloys on the market. While 316 comes in second in terms of quantities sold, it offers vastly superior corrosion resistance to chlorides and acids. Ensure that the weld contains 5-10% ferrite during welding to avoid cracking of the weld. But when SS304 is in a warm chloride environment, the corrosion is even faster than non-alloy mild steel. 304 / 304L Stainless Steel Pipe. 303 and 304 Stainless are the most commonly listed grades, the standard grade for stainless fasteners. Furthermore, stainless steel is fully recyclable, and the majority of new stainless steel in the United States comes from scrap metal. High ductility, excellent drawing, forming, and spinning properties. It has a minimum of 18% chromium and 8% nickel, combined with a maximum of 0.08% carbon. 304 / 304L Stainless Steel Bar Stock. This material will retain aqueous corrosion resistance. Read More, 304 Stainless Steel Properties: SS304 Composition, Density, Yield Strength, Thermal Conductivity, Hardness, Modulus of Elasticity, Galvanized Welded Wire Mesh Panels, Sheets & Rolls for Fence, 304 & 316 Stainless Steel Welded Wire Mesh Rolls & Panels, S355MC Steel | 1.0976 Material Properties & Equivalent, Designation Meaning of Steel Names (European Standard), S355JR Steel (1.0045 Material) Properties & Equivalent, European EN Standards BSI | DIN Standard, Mechanical Properties, data are for 25.4 mm (1 in.) Because SS304 contains 18% chromium (Cr) and 8% nickel (Ni), its also known as 18/8 stainless steel. Heavy welded sections such as splices on transfer girders may require post-weld annealing. Stainless Steel Uses and Applications in Aviation and Aerospace Industry, Applications And Uses of Stainless Steel Bright Square Bars, What Are The Characteristics Of Stainless Steel For Food Industry, AISI 304 stainless steel annealing temperature, AISI 304 stainless steel tensile strength, AISI 304 stainless steel thermal conductivity, AISI 304 stainless steel electrical resistivity. All Rights Reserved. The following contents give AISI 304 grade stainless steel heat treatment temperature of including annealing, forging, stress relief, etc. When wire is specified in straightened and cut lengths, the minimum tensile strength shall be 90 % of the values listed in the table. In metallurgy, stainless steel is a steel alloy with at least 10.5% chromium with or without other alloying elements and a maximum of 1.2% carbon by mass. diameter bar, Modulus of elasticity (Elastic modulus), GPa (psi), Mean coefficient of thermal expansion, (10. Data comes from professional, authoritative and trustworthy ASTM standards. S30400 is the UNS number. The machinability of AISI 304 is 70 the same as AISI 304L labelled by the American Iron and Steel Institute standards. Grade 304 stainless steel is especially exceptional for its high tensile strength of about 621 MPa (90 ksi). Stainless Steel 304 is also known as AISI 304. The welding performance of 304 stainless steel serves quality even if its done with or without fillers. It offers an increase in yield strength without imparting its flexibility. 304 Stainless Steel. Grade 304 stainless steel is a type of stainless steel with properties that make it more resistant to corrosion and oxidation than regular types of . Stainless Steel Knife Comparison Other prominent benefits of stainless steel include the high strength-to-weight ratio, a resistance to heat and chemical damage, and cost advantages over other materials. 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