High levels of nickel and chromium, as well as the additions of molybdenum and copper, provide good to outstanding corrosion resistance. . Stainless Steels: General Information: Properties: Stainless Stl. SS 904 is used in acid processing equipments, gas . GENERAL PROPERTIES Alloy 904L (UNS N08904) is a super austenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments. 904L stainless is not a very strong stainless steel grade and it does not have strong mechanical properties. . The alloy is stainless steel added with copper to improve its resistance against strong reducing acids like the sulphuric acid. Cited properties are appropriate for the annealed condition. Due to addition of Copper, it has increased resistance to phosphoric, sulphuric and hydrochloric acid concentration. The steel is very useful for details in marine environment, chemical and pharmaceutical industry. Grade: Tensile Strength (MPa) min: Yield Strength 0.2% Proof (MPa) min: Elongation (% in 50mm . 904L is an austenitic stainless steel.In comparison to 316L, its molybdenum addition gives it superior resistance to localized attack (pitting and crevice corrosion) by chlorides and greater resistance reducing acids and in particular its copper addition gives it useful corrosion resistance to all concentrations of sulphuric acid.Its high alloying content also gives it greater resistance to . This high alloy stainless steel has added copper to improve its resistance to strong reducing . 904L Steel Yes we use the Rolex Steel! It is formable and highly weldable. 904L Stainless Steel Mechanical & Physical Properties. This is what gives this non-magnetic grade excellent . The following are common forms of specialized corrosion. Grade 1.4662 is by far one of the most used duplex steel types. 904L can take on a higher polish than traditional stainless steel alloys and it possess a number of anti-corrosive properties that are somewhat similar to . Presence of higher magnitudes of nickel and molybdenum makes it better than other austenitic steels. SS 904L Pipes are typically used in environments which require resistance to crevice corrosion. It is a suitable austenitic stainless steel to be used in the prevention of hot seawater corrosion and chloride based attack. This kind of removes the 904L's trump card. In terms of chloride corrosion resistance, the rust resistance ranking of common stainless steel grades is as follows: 904L > 2205 > 316L > 316 > 304L > 304 > 302 > 201 > 430 > 440. It resists chloride based stress corrosion cracking and acidic corrosion. Rolex 904L super clone watches are exact 1:1 when compared to original Rolex oystersteel watches. Non-magnetic in nature. Ultra 904L is a high-nickel and molybdenum austenitic stainless steel with very high corrosion resistance. Corrosion 904L: N08904: 20: 4.3: 25 : 34.2 (6%Mo) 20: 6.1: 18-24: 0.2: 43.3: . Selection of the appropriate stainless steel grade depends primarily on the corrosiveness of the application environment and the application's mechanical property requirements. Application Its high alloy composition offers good resistance to pitting and corrosion in a wide range of environments. Back to Top 2 1.4539 Applications: Grade 904L stainless steel is the super austenitic stainless steel with low carbon chemical components. The composition of 904L stainless steel is as follows: Nickel, 23-28% Chromium, 19-23% Carbon, 0.02% maximum Copper, 1-2% Molybdenum, 4-5% Manganese, 2% maximum Silicon, 1.0% maximum Iron, (balance) As a result, it will also show high resistance to stress corrosion cracking. With high level of molybdenum provides 904L with superior resistance to pitting and crevice corrosion. 904L stainless steel strip is a low-carbon, high-nickel, molybdenum super austenitic stainless steel strip. STEEL GRADES High Alloyed Austenitic Stainless Steel 904L, 254 SMO, 654 SMO AvestaPolarit EN ASTM 904L 1.4539 N08904 254 SMO 1.4547 S31254 654 SMO 1.4652 S32654 The types 304 and 316L are made by adding nickel to it, while 904L is in the subgroup of so called Silicon-manganese steels. This steel also features a higher carbon content. Stainless steel's resistance to corrosion results from the chromium, which forms a passive film that can protect the material and self-heal in the presence of oxygen. However, 904L stainless steel is unique in its addition of copper. UNS: AFNOR: JIS: BS: KS: EN: 904L: 1.4539: N08904: The chemical composition of a steel grade may vary slightly between different national standards. A for thickness = 3 mm. Introduction. SS 904L Round Rod composition and properties Check 904L Hex Bar stock length, sizes and dimensions ASTM B649 Steel 904L Bars Equivalent Grades. Utility scrubber assemblies, acid and fertilizer production equipment. When more than one alloy meets these requirements, other factors like physical properties . 1. Steel 1.4662 is a reference to a type of duplex stainless steel . This renders high price for the 1.4593 Piping. The 904 has a lower carbon content (C), so the polished 904L steel pipe or sheet steel has a better surface, and the same volume of 904L stainless . Density: 8.05 g/cm3: Melting Point: 1350 C (2460 F) Tensile Strength: Psi - 71000 , MPa - 490: Yield Strength (0.2%Offset) Psi - 32000 , MPa - 220: Grade 904l is a recommended austenitic stainless steel for use in the applications where grades 316l or 317l cannot provide the required corrosion resistance properties. Elongation according to ASTM standard A2" or A50. 904L Stainless Steel Fasteners are non stabilised austenitic stainless steel fasteners manufactured from alloy containing chromium, nickel, molybdenum and nitrogen with restricted carbon content.Stainless Steel 904L Fasteners are used for low temperature service and highly corrosive environments. Consequently, a specified standard should always be stated when ordering. 1)Elongation according to EN standard: A80 for thickness below 3 mm. A new type of high-chromium nickel molybdenum super austenitic stainless steel, 904L, has excellent corrosion resistance in a sulfuric acid environment (Ref 1,2,3).Previous studies have explored the differences between 316L and 904L, and 904L has a higher resistance to fluoride acid corrosion due to its higher nickel content (Ref 4).However, while the service life of 904L is 5-10 times longer . 904L is an austenitic stainless steel designed for moderate to high corrosion resistance. However, its chemical composition includes greater numbers of chromium (19-23%) and molybdenum (4-5%), which gives the alloy greater corrosion resistance than 316L. UNS NO8904, commonly known as 904L, is a low carbon high alloy austenitic stainless steel which is widely used in applications where the corrosion properties of AISI 316L and AISI 317L are not adequate. 1.4539 904L stainless steel combines molybdenum and copper with iron for tremendously increased resistance to reducing acids like sulphuric acid. 6-Moly, BS2562, 1.4539, N08904, X1NICRMOCU25-20-5. The hardness of 904L is 70- 90 HRB. It has good activation-passivation transformation ability and excellent corrosion resistance. The process uses repeated passes to adjust the dimensions of the steel slowly. The steel is also resistant to stress corrosion cracking and crevice corrosion. What is Grade 904L Stainless Steel? Super austenitic stainless steel alloy 904L (UNS N08904) is created for moderate to high corrosion resistance in a variety of process conditions. The addition of copper to this grade gives it greatly improved resistance to strong reducing acids, particularly sulphuric acid. Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This typically occurs in acids or in hot alkaline solutions. They have even made an advert extolling the virtues of this stainless steel grade. Properties and Uses of 904L Stainless Steel 904L cannot be hardened by heat treatment. . 904L Stainless Steel Wire is very strong and doesn't snap easily. Grades: Austenitic: Martensitic: Ferritic: Precipitation Hardening: Stainless Steel List: AISI Type 2xx: AISI Type 3xx: AISI Type 4xx: AISI Type 5xx: AISI Type 6xx * For other AISI or Non-AISI, please use the search function above or check Grades. Duplex stainless steels are made from ferritic and austenite phases of the metallic alloys. Stainless Steel 904L Forged Fittings Forged steel fitting pipes are created to develop strong fitting between two pipes. . This high alloy stainless steel is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid. The steel is also resistant to stress corrosion cracking and crevice corrosion. These days companies prefer to go for . 904l was originally developed to withstand environments containing dilute sulfuric acid, and is one of the few stainless steels that, at temperatures up to 95f (35c), provides full resistance in such environments within the entire concentration range of 0 to 100%. This means that 904L has very good welding properties. All our Swiss replica Rolex watches are being forged from solid 904L stainless steel that is the same steel used by Rolex. 904L Physical Properties: Elastic Modulus . Alloy 904 (N08904) stainless steel is a high alloy austenitic product intended for use under severely corrosive conditions. The alloy was originally developed to resist corrosion in dilute sulfuric acid. Slow speeds and positive feeds will minimize this alloy's tendency to work harden and glaze. Additionally, these products work well in impact corrosions and crevice corrosions. SS904L Mechanical and Physical Properties by Aditya Pandit Posted on July 17, 2017 at 5:30 PM A grade 904L stainless steel is a stainless austenitic non-stabilized steel with very low carbon content. It has good corrosion resistance in non-oxidizing acids, good pitting corrosion resistance in neutral chloride-containing application. Corrosion resistance. Furthermore, it is also sturdy and aesthetically pleasing. Its low carbon content improves cleanliness and weld strength. China ASTM B677 / B673 / B674 TP 904l Stainless Steel Pipes & Seamless Steel Tubing 4, Find details about China API Carbon Steel Pipe from ASTM B677 / B673 / B674 TP 904l Stainless Steel Pipes & Seamless Steel Tubing 4 - TOBO STEEL GROUP CHINA. SS 904L Properties SS 904L is a low carbon, non-stabilized austenitic type stainless steel alloy. It is used extensively for its superior corrosion resistant properties. 904L is an austenitic grade stainless steel with low carbon and higher resistance to stress and crevice corrosion cracking as compared to AISI 316 & AISI 317 stainless steel grades. 904L Stainless Steel. Sachiya Steel International is one of the pioneer Manufacture and Exporter for Stainless Steel 904L Threaded Forged Fittings, which have excellent resistance to warm seawater and chloride attack.The corrosion resistance properties of Stainless Steel 904L Forged Threaded Elbow are not as good as the 18 - 8 chromium - nickel steels and its susceptibility to carbide precipitation during . | Find, read and cite all the research . The stress can be a combination of tensile and compression or fluctuating tensile strength. N08904 is the UNS number for this material. Stainless steel heat-resistant steel for sale, Quality 904L Stainless Steel Angles on sale of Tianjin Haozeshun Steel Trade Co., Ltd. from China. As a result, 400-series stainless steel offers higher strength and more wear resistance, but it is also more easily corroded than 300-series grades. 904L grade stainless steel is a low-carbon variety of stainless steel with additives of nickel, chromium, copper, and molybdenum to make it highly resistant to corrosion caused by elements like sulfuric acid, sweat, moisture, salt water etc, and due to its hardness it is scratch resistant and . Stainless steel is an alloy of iron that is resistant to rusting and corrosion.It contains at least 11% chromium and may contain elements such as carbon, other nonmetals and metals to obtain other desired properties. It is not difficult to see that 904L alloy elements chromium, nickel, molybdenum is more than 1.6 times of 316L stainless steel, 1%-2% copper makes 904L stainless steel has stronger corrosion resistance and wear resistance than 316L stainless steel. They are a preferred choice in medical and industrial systems. The alloy is also resistant to stress corrosion cracking and crevice corrosion. Additionally, the British Standard (BS) designation is 904S13. Being an austenitic stainless steel, SS904L is a non-magnetic alloy material. Ferritic vs Austenitic. EN 1.4539 ASTM type 904L ASTM UNS NO8904 Microstructure Austenitic PED approved 904L Stainless Steel Tubing Manufacturer, Supplier of SS 904L Tube & ASTM B677 UNS N08904 Tubing, Check DIN 1.4539 Exhaust Tube Dimension & Sizes & 904L Steel Cold Drawn Tube Price List . This low carbon version of Type 904 stainless steel also offers other benefits to users including: Non-magnetic Stronger corrosion properties than Type 316L an 317L Good resistance to sulphuric, phosphoric and acetic acids Unfortunately Rolex don't buy their stainless steel from us, but we are finding 904L to be an increasingly popular grade, especially in the petrochemical industry. Galling. 400 stainless series. 1.4539 material used in petrochemical industry, paper mills, treatment plants, gas production and filling plants and luxery watch industry. The resistance properties of grade 904L stainless steel pipes include good resistance to stress corrosion cracking, and pitting and crevice corrosion, as well as inter granular corrosion. It shows the properties of corrosion resistance, cracking and crevice corrosion. Grade Properties It stands up extremely well to chlorides in the environment for low pitting and crevice corrosion, as well as stress corrosion cracking. AISI 904L (UNS N08904) is a super austenitic stainless steel (SASS) with higher Cr, Ni and Mo contents, as compared with those ordinary austenitic stainless steels (ASSs) such as AISI 304L and 316L [].With the higher alloy contents, the pitting resistance equivalent number [PREN = wt% Cr + 3.3(wt% Mo) + 30(wt% N)] [2,3] of SASS 904L (32.5 to 39.5) is much higher than that of . With addition of copper, SS 904L has improved resistance to strong reducing acids such as sulphuric acid. Stainless Steel 904L 904L stainless steel grade has low carbon content and is a non- stabilized and super aesthetic steel. Stainless Steel 904L 1.4539 This data sheet applies to stainless steel 904L / 1.4539 hot and cold rolled sheet and strip, semi-finished products, bars, rolled wire and profiles as well as seamless and welded tubes for pressure purposes. Type 904L is a high alloy austenitic stainless steel that is known for its corrosion properties. The Stainless Steel 904L Round Bar offers excellent resistance to crevice corrosion and stress corrosion cracking. The steel is also resistant to stress corrosion cracking and crevice corrosion and is also non-magnetic. Fatigue Properties and Endurance Limits of Stainless Steel Fatigue is a process of mechanical failure resulting from the application of repeated cyclic stress. f at 212 f), yield strength is 205 mpa (30 ksi), tensile strength is 515 mpa (75 ksi), modulus of elasticity (elastic modulus) is 193 gpa (28 x 10 6 psi), brinell hardness is Is 904L Steel Harder Than 316? Specific Stainless Stl: General . N08904 stainless steel is a superaustenitic (highly alloyed) stainless steel formulated for primary forming into wrought products. This is due to the high amount of molybdenum, chromium and nickel content. Excellent performance of 316L stainless steel watch bands 20mm performed in both brushed or polished . Stainless steel is divided into two general types, which each have a different atomic structure. 1. The steel grade 1.4539 ( also called UNS N08904, 904L and SS2562) is a high alloyed austenitic . It offers good resistance to: Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. Heat Treatment Annealing: The recommended annealing temperatures for 904L wrought steel is 1095 C (2000 F). 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. The "L" in 904L stands for low carbon, i.e., only 0.03 percent or less. By using 1.4539 (UNS N08904 - 904L-SS2562) you get a high alloyed, acid-proof stainless steel, developed to resist corrosion in dilute sulphuric acid. The steel is also resistant to stress corrosion cracking and crevice corrosion. 904L is a non-stabilised low carbon high alloy austenitic stainless steel. This series of stainless steel contains 11% chromium and 1% more manganese than 300-series grades, making it slightly magnetic. Duplex stainless steel: including 2204, 2205, 2507, etc. This composition gives the materials 220MPa minimum yield strength and 490MPa minimum tensile strength. Typically, stainless steel has outstanding properties, such as being corrosion resistance. While both types of steel are iron alloys, there are critical differences in how their atoms are arranged that affect . Duplex grade steels allow for very high impact resistance, corrosion cracking resistance and high heat applications. 1.4539 is not a cheap stainless steel grade and it is not so easy to machine it. . It was originally developed for handling sulfuric acid at ambient temperatures, and is now used in a broad range of chemical industry applications. 904L Fasteners. It is also highly resistant to chloride attack - both pitting / crevice corrosion and stress corrosion cracking. 904L steel is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid. 904l also offers good resistance to a number of other inorganic acids, such as However, it also contains some copper, manganese, and silicon, which enhances corrosion resistance. Stainless steel SS 904L Pipes contains expensive elements such as nickel and molybdenum. The ASTM A403 Stainless Steel 904L Pipe Fittings have 70-90 HR B maximum Rockwell B hardness. Some people are familiar with 904L stainless steel as a metal commonly used to produce Rolex watches . You can watch the ad on YouTube. 904L is an austenitic grade stainless steel with low carbon and higher resistance to stress and crevice corrosion cracking as compared to AISI 316 & AISI 317 stainless steel grades. 904L Stainless Steel Tubing Chemical Properties. And the common industry name is Alloy 904L. Commonly seen with nuts, bolts, and other fasteners, corrosion isn't visible until the parts are separated or disassembled. 904L steel is a super alloy that has perfect anti-corrosion properties it's resistant to acids, salt and to a big range of harsh environments and is unfound in any other Rolex replica. The combination of high chromium and nickel content, coupled with additions of molybdenum and copper, assure good to excellent corrosion resistance. 904L Stainless Steel Other properties included: - Good resistance to pitting and crevice corrosion ability - High resistance to stress corrosion cracking capacity - Good resistance to intergranular corrosion ability - Good machinability and weldability 904L Tubing is non-magnetic in all conditions and has excellent weldability and formability. Stainless steel 904L Forged Fittings are the products that show excellent resistance properties even in the presence of chemicals and seawater rust. 155. Like 316L, 904L stainless steel is a low-carbon austenitic stainless steel. They are named based on unified numbering system, UNS, the designation system for alloys, commonly accepted in USA. In general, ferritic stainless steel is magnetic, while austenitic types like 904L stainless steel are not. 904L has high nickel composition with low carbon content, copper alloy adding improve its resistance to corrosion, the "L" in 904L stands for low carbon, it is typical Super Austenitic stainless steel, equivalent grades are DIN 1.4539 and UNS N08904, 904L has better properties than other austenitic stainless steels. Still, the stainless steel type 904L has a high resistance to crevice corrosion. This high alloy stainless steel is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid. Due to addition of Copper, it has increased resistance to phosphoric, sulphuric and hydrochloric acid concentration. The steel is designed for harsh corrosion conditions. The tensile strength of SS904L is 71 Ksi (490 MPa), Yield strength is 31 Ksi (220 MPa) and percentage elongation is 35. The alloy is stainless steel added with copper to improve its resistance against strong reducing acids like the sulphuric acid. 904L stainless steel is a low-carbon alloy austenitic grade of SS. More details on its properties are available on our 904L website . 1.4539 A Superaustenitic Stainless Steel Designed for Corrosion and Pitting Resistance in a Wide Range of Process Environments Alloy 904L 08/2014 www.SandmeyerSteel.com SANDMEYER STEEL COMPANY ONE SANDMEYER LANE PHILADELPHIA, PA 19116-3598 800-523-3663 +1-215-464-7100 FAX +1-215 . These forged fittings are resistant to general corrosion conditions, including stress cracking corrosion, pitting corrosion, etc. 904L is a non-stabilised low carbon high alloy austenitic stainless steel. Density of SS904L is 0.287 lb/in3 (7.95 g/cm3). Stainless Steel 904l has medium corrosion resistance properties such as oxidation resistance. . Good forming and welding properties. SS904L Grade Properties Introduction Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. The composition includes 23% nickel, 19% chromium, carbon, manganese, silicon, phosphorus, sulfur, 4% molybdenum and nitrogen in the composition. 904L and its substitutes belong to the group of steels resistant to intercrystalline corrosion in delivery and sensitized condition, which goes hand in hand with resistance to pitting and stress corrosion. Type 904L contains more chromium, molybdenum, and nickel than 316L. This corrosion occurs when stainless steel parts are forced together. SS 904L is a commercial grade of Stainless Steel with low carbon content. Specification Sheet: Alloy 904L (UNS N08904) W. Nr. The low carbon content of 904L improves . The steel is Continue reading SS 904L Mechanical and Physical . This high alloy stainless steel is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid. This grade is an austenitic stainless steel specification offering moderate to high corrosion resistance. Uniform corrosion Uniform corrosion occurs when all, or at least a large section, of the passive layer is destroyed. It is also an austenitic alloy, which means that a nonmagnetic solid solution of ferric carbide or carbon in iron is used to increase corrosion resistance. PDF | A low-temperature (400 C) glow plasma nitriding layer on AISI 904L austenitic stainless steel was obtained at various NH3 pressures and studied. The following table lists Rolex 904L stainless steel (SS904L) mechanical properties such as yield strength, tensile strength, elongation and hardness. West Yorkshire Steel are suppliers and stockholders of 904L stainless steel bar and plate. Conventional chrome stainless steels are comprised of nickel. A grade 904L stainless steel is a stainless austenitic non-stabilized steel with very low carbon content. 904L stainless steel is a low-carbon variety of stainless steel with additives of nickel, chromium, copper, and molybdenum to make it highly resistant to the various types of corrosion. Stainless Steel 904L, UNS N08904, 1.4539 . Alloy 904L performs better than other austenitic stainless steels due to the higher alloying of nickel and molybdenum.904L has a greater resistance to precipitation of ferrite and sigma phases on cooling and welding than other stainless steels containing molybdenum such as SMO 254, 253 MA, DUPLEX 2205 and SS 310L. The chemical properties of SS904L are given in the below table: STANDARD: WERKSTOFF NR. Stainless steel 904L has the following characteristics: 904L is a highly alloyed austenitic stainless steel with very low carbon content.