Automotive industry. Typical wear and galling problems: 1. If we know the Reynolds number and the roughness - the friction coefficient - λ - in the particular flow can be calculated. 1 very often which confuses me. The steel contains both chromium (between 18% and 20%) and nickel (between 8% and 10. Carbon steel is about $500/ton. May 6, 2021 at 9:23 am. Stainless steel (SS) is an excellent metal-based material alternative to carbon-based materials as the MFC bioanode due to its outstanding mechanical properties, electrical conductivity, and corrosion resistance (e. Stainless Steel 304 and Stainless Steel 316. 10" 1000 (538) . Type 304 stainless steel is an austenitic. 000. 75 for the 304L when compared to 304 [25], so sensitization takes longer to start in the 304L, as expected. 22. 8×12. Just select a k factor according to your material from the table below. 40 stainless steel pipe with temperature 100 o F, allowable stress 16700 psi, quality factor E = 0. K-Factor Rating (Harmonic Mitigation): K-1 (Standard) External Non-PCB Label Pulse Drive Rating: N/A External Barcode Label. Applications. 9 (20-100 ℃) 16. The carbon diffusion to the grain boundary is slower by the factor 8. One disadvantage of 304 is that it is non-hardenable by heat treatment. 780 NW 185th Ave #304 was built in 2007 and last sold on July 31, 2020 for $220,000. Learn how to design and construct structural stainless steel buildings with the latest edition of the ANSI/AISC 370-21 specification, which covers both LRFD and ASD methods and incorporates new provisions for built-up compression members, webs under concentrated forces, and more. 55 to 1mm R1 10v 0. 0. Introduction American Iron and Steel Institute (AISI) type 304 is the foundation of 300 series austenitic stainless steels is by far the oldest, largest and most important group in the stainless steel range [1]. Topics Deformation and fracture , Heat-affected zone , Austenitic stainless steel , Fracture toughness testing , Charpy testing , Aging , Welding ,. For welded and drawn tubing, a derating factor must be applied for weld integrity: for double-welded tubing, multiply workingStainless Steel 316 . Thermodynamics Work, heat and energy systems. Using the data as input in our bend allowance calculator, we obtain: An air to air plate exchanger with area 2 m 2 and wall thickness 0. Grade 302 stainless steel spring wire (specified in ASTM A313) has high heat resistance and good corrosion resistance, and has excellent spring. More power is required to machine grade 304. K Factor: Advanced users only? K Factor is a torque coefficient between bolt and receptacle. To avoid confusion, the term “alloy” will beSteel Angle for constructtion, For Construction, Size: 20 X 20 X 3 mm. 4 × 330. 304/304L demonstrates excellent corrosion resistance. 2. Essentially non-magnetic, becomes slightly magnetic when cold worked. Stainless Steel. Table 5. 463 0. This article discusses the properties and applications of stainless steel grade 304 (UNS S30400). 2. AISI 316 stainless steel has better corrosion. Finish. 304 Stainless Sheet may become slightly magnetic when worked and is not heat treatable. Various K Factors: Typical Steel Bolt: 0. 2 (20-300 ℃). 2 and 2. SS 316 is better than SS 304 in terms of corrosion resistance, heat resistance and certain properties, but the price is higher than AISI 304, for more details, please check stainless steel grade 304 vs 316, and 316 vs 316L. Nature of the grain boundary and stress corrosion cracking (SCC) The grain boundary energy in type 304 stainless steel is known ( Murr 1975) to vary from 20 to 835 mJ/m 2. Thermal conductivity for stainless steel is 17 W/(m K) (from the table above). 5 for larger bend radii. 73 °F: Minimum Service Temperature: 0: 0: K-459. Where high strength is required. 18-8 Stainless steel is a type of austenitic stainless steel that contains approximately 18% chromium and 8% nickel. It has excellent forming and welding. 18. 8 Bare Steel with Guide Point; DIN 7984-8. Shane. Composition. Conductive Heat Transfer through a Stainless Steel Pot Wall with thickness 2 mm - temperature difference 80 o C. The results shown in Fig. 76 × 10 17 MPa −1 s −1 and 2. 4401 and 1. Typical Applications: Food processing equipment, particularly in beer brewing, milk processing & winemaking, Kitchen benches, sinks,. 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. steel shapes and built-up members (Refs. The only exception will be the stainless steel grade 430 which contains Less than 1% nickel and can be a great. This has been attributed to the nature of the grain boundary or the misorientation angle (proximity to low coincident site lattice – CSL). 29 2 9. The K-factor can also be used to calculate bending allowance and bending deduction. 4301 and 1. 0. This table contains typical values of absolute roughness for common construction materials. 4301 and 1. . E. 4. Type 304 is the most versatile and widely used stainless steel. Bend Radii And K Factors For 304 Stainless Steel. The tensile strength of austenitic stainless steel varies from 75,000 to 105,000 psi. Knowing both. 060" 0. Modeling up my first stainless steel parts, as I usually only use mild steel. Interrelation between acoustic emission (AE) and stress intensity factor (K) has been examined using data generated during deformation of a series of single edge-notched tensile specimens. 12 = Torque Applied (Nm) = Tension Generated in Fastener (N) = Nut Nominal olt Diameter (m) = K-Factor K Factor - 3D development Bend Allowance 2D development Min Flange Min Joggle Max Length Min Angle 'X' 0. Type 439 is a titanium stabilized, 18 percent chromium alloy that may be used in many oxidizing environments where Type 304 is considered adequate in terms. . 304L is a modified low-carbon stainless steel based on 304, used to improve the corrosion. The welding of stainless steel pipe sections must be performed by skilled technicians, and in accordance with the standards prescribed. Kraus Premier Kitchen 33″ Drop-In 18 Gauge Stainless Steel 60/40 Double Bowl Kitchen Sink. 286 lb/in3). 430 $0. The pressure drop calculations. Stainless Steel Welding Characteristics By definition, stainless steels are iron-base alloys containing 10% or more chromium, which imparts to the metal the corrosion-resistant properties for which stainless steels are so highly regarded. SS304 ( AISI 304) is the most frequently used stainless steel when making other stainless steel materials and is typically bought in a cold or annealed condition. In addition, nickel (Ni) or molybdenum (Mo) may be added to enhance the effect. As an example, a 0. To understand the k-factor, you need a firm grasp of a few basic terms, the first being the neutral axis. The heat transfer convection coefficient for air is 50 W/m 2 K. 18-8 Stainless Steel, SUS304, 304 vs 316 Stainless Steel. 4401 and 1. In this case, both steel types contain a similar amount of chromium and nickel. Austenitic stainless steel such as type 304 o r 316 is widel y used in nuclear power plants because of its strong corrosio n resistance, excellent welding performance, hig h strength, and o ther. However, continuous use at a temperature between 797-1580 °F can lead to corrosion. To help you begin I’ve included a K-Factor Chart below which contains common K. 286 lb/in3). Corrosion resistance. 1 \text { mm} 2. Surface Emissivity Coefficients. Thermal conductivities of common metals, metallic elements aand alloys. Lids for 304 stainless. 4 77. Type 304 is the most versatile and widely used stainless steel. Tank Material:304 Stainless Steel Note:€For low quantity purchases, enclosed truck can be requested Housing Material:304 Stainless Steel w/ Corrosion Resistant Cover Band, RemovableWe are going to review three bending scenarios with three different bending angles; 60, 90 and 120, and we will calculate K-Factor, Bend Allowance and Bend Deduction for them. the ideal heat treatment technique for stainless steel AISI 304 and proposed that specimens have the maximum hardness value at 666°C [6]. 4436) have very similar physical and mechanical properties, but their primary difference remains in their resistance to corrosion in different environments: 304 Stainless Steel. Hot rolled steel: 0. 2. 304 stainless steel is one of the most popular types of stainless steel. The test specimens were cut out of a single plate of either 304 or 304L stainless steel to dimensions of 152. After reading this article, if you still have confused about Carbon Steel and Stainless Steel. So, if erosion resistance is a key factor, stainless steel is the best approach. Finally, there’s the cost factor. This article discusses the properties and applications of stainless steel grade 304 (UNS S30400). The chemical composition of these two types of stainless steels is given in Table 5. 304 Stainless Sheet offers good corrosion resistance to many chemical corrodents as well as industrial atmospheres and marine environments. 4301) is a widely-used austenitic chromium-nickel stainless steel. Alloy 304L a T-300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel. 55 8. We bend lots of stainless, which in terms of hardness, is. The present study focuses on the corrosion behavior of 304L stainless steel in crevice corrosion environments. However, steel-containing structures decay due to corrosion, destroying. Stainless steel 304 and 316 are not suitable materials for being in contact with vapor containing the hypochlorite ion, due to the potential development of dry/wet conditions that induce pitting corrosion. The density of stainless steel 304 is 7. Application. 4436. Material Machinability Chart - Machinability of Metals The metal with a machinability rating smaller than 100% means it is more difficult to machine than B-1112 (carbon steel 1212) and materials with a rating. Our bend radius rule of thumb is the minimum radius = material thickness. Other elements, such as nickel or molybdenum are added to increase corrosionfactor range (the so-called Paris Law), and use this to analytically estimate the number of load cycles required to grow an existing crack from an initial size to a final size. By continuing to browse this site you agree to our use of cookies. 08, Si≤1. The K-factor is calculated based on value ranges and is used to determine the following: Tube bending feasibility (whether it is in fact possible to bend a round, square or rectangular tube) Predicted difficulty. Conclusion In this contribution, FCGR of IPE 80 beams made of AISI 304 stainless steel and AISI 316 were analyzed. gov) UTSA. mild steel 0. The tool can be used for any flow type. Electrical resistivity: 72 microhm-cm (20C) Specific Heat: 500 J/kg °K (0-100°C) Thermal conductivity: 16. 304 stainless steel has excellent resistance to a wide range of atmospheric environments and many corrosive media. Prefix- (S)Steel - (CLS)Stainless Steel. It is still sometimes referred to by its old name 18/8 which is derived from the nominal composition of type 304 being 18% chromium and 8% nickel. 4307 respectively. As good as 304 is at standing up to oxidation, 316 is more corrosion resistant, and better able to withstand harsh environments. Stainless steel grade 301 is usually supplied in the form of strips and wires, with a tensile strength of up to 1800 Mpa, to produce tempers ranging from 1/16 Hard to Full Hard. 5: Tellurium:. The k-factor allows you to calculate the bend allowance, the outside setback, the bend deduction, and the flat layout of the precision part you’re forming. 3 1. 5% chromium. AISI 304 – industrially denoted as 18/8, is an austenitic chromium-nickel stainless steel. We want to know the final length of the detail. 3 applications in excess of the 500psi (34. The sample was etched in a solution of 10% HCl and 0. Please let us know here why this post is. Additional Information: NOTICE: The product details indicated below are for general reference only and may vary based on the specific product approval and/or application. You can easily modify the Material Thickness, Inside Radius and K-Factor for each thickness at the top of each column. 61 Polished Sheet 100 (38) . ISBN: 978-0-87170-503-7. Welding of stainless steel SS304 by using optimized parameters resulted in improvement in joint tensile strength and hardness by 10. The K-factor is the ratio of the neutral axis position to the total material thickness. This form of grade 301 may be used in. 2% yield strength is minimum 25 ksi (170 MPa) in annealed and hot finished condition, minimum 45 ksi (310 MPa) in annealed and cold finished condition; Minimum tensile strength is 70 ksi (485 MPa. At exactly the same torque level of 24 foot pounds, variations between 4500 pounds and 6700 pounds are experienced. 3Adding nickel to stainless steel in sufficient amounts, changes the microstructure to “austenite”. Davis. 3. 14 Mild Steel, Polished 75 (24) . inl. Cold Rolled Steel. 0, 115 metric. 304L is a modified low-carbon stainless steel based on 304, used to improve the corrosion. Works exceptionally well when completing repairs where a doubler must exactly fit a Z section on the corners. Grade 410 stainless steels are resistant to hot gases, steam, food, mild acids and alkalies, fresh water and dry air. This material has been carbide solution treated in the finished condition. teristics of Type 304 stainless steel are given in Figures 4 and 5. 0. The K-factor is used to determine the length of the metal plate stretched during the bending process. 1 in (inch) = 25. The Machinability is mainly affected by: Carbon (C): 0. Emissivity data are shown in Table VI. - stainless steel AISI 321 (by the way, is there an effective difference between friction factor of steels ?) - aluminum. In their study, various apparatuses were used including a universal electromechanical testing machine, a hydro-pneumatic apparatus, and a split Hopkinson tension bar to characterize an AISI 304. Ahn, and D. Hsu, T. The annealing process adds corrosion resistance and is critical for the machinability and formability of the metal. 44 and 0. Dry Torque) Partially Lubricated Bolts; Properly Lubricated Bolts; But before we talk about these items, or get to our torque chart, it is imperative you understand the working definition of K-Factor (or “Nut Factor”). 4301 (AISI 304) when heated in open air: These colors, also called heat tint, depend on four factors: Steel chromium content. 05” 304 Stainless Steel – 18 gauge ( 0. 56% and 7. Their composition is given in Table 1. Afterwards k-factor is used in CAD. For example, Type 304 is S30400 in UNS. -. k factors are proven within 0. The ideal temperature to avoid grain growth on annealed 304 stainless steels (solution conditioned) is found to be 666°C. 10 Mild Steel, Smooth 75 (24) . copper 0. On unlubricated connections, I use k=0. 304 Stainless Steel 7/16” 74. 304 Stainless Steel. Stainless Steel Sheet Metal Gauge Table Aluminium Sheet Metal Gauge Table Galvanized Steel Sheet Metal Gauge Table. You can use this K-Factor calculator to calculate k factor using reverse engineering approach. However, this steel can be cold. Linear thermal expansion coefficient (α) at 20°C for Stainless steel. 6mm (24- gauge), weighing about 136 tonnes. Thermal conductivity of stainless steel 316, (W/m·K) 12. Low carbon content means less carbide precipitation in the heat-affected zone during welding and a lower susceptibility to intergranular corrosion. 424. 01 s −1) and temperatures ranging. Alloy Steel Austenite Stainless Steel. T – material thickness in m. It has better temperature resistance than 304 stainless steel. The following datasheet provides an overview of grade 304N stainless steel. Molybdenum is also an expensive element, which makes 316 the more expensive grade. 078” | 1. I have tried it today and it doesn't seem to give exactly the result I was expecting. 316 Stainless SteelType 304L Stainless Steel. 304. The material thickness (T), bending angle (A), inner bending radius (R), and K-factor of the. Apps can be a great way to help learners with their math. 459. The variation of the SRF value. Notes: 10 -6 ·K -1 = 10 -6 /K 1 Ω·mm²/m = 1 μΩ·m 1 g/cm3 = 1 kg/dm3 = 1000 kg/m3 1 GPa = 1 kN/mm2 K °F: Latent Heat of Fusion: 260: 285: kJ/kg: 111. 304 is generally more expensive than 430 because of the chemical composition. The density of stainless steel is about 7. . Pierre-Jean, Working with Stainless Steel(Materials and Applications Series, Volume 2), Paris: Sirpe, 1998. This article summarizes the thermal conductivity of stainless steel 304 and 316 at various temperatures in annealed condition, also other stainless steel grades. The Cowper. strain rate for AISI 304. If you are only estimates, according to common steel density 7. by：East King 2020-08-30. K – constant. First, we must start with the k factor: Another way to determine the k factor is by following the “rule of thumb”. - stainless steel AISI 304. Tube 90 steel stainless bends bend radius dimensions deg long gradeCalculating bend allowance, bend deduction, and k-factor Figure 16-4. & Yu, W. In applications where aesthetic appearance is important, it is recommended that 3CR12 is painted, or a higher grade should be used. Experimental The test specimen in this investigation was a austenitic stainless steel SUS 304 shaft with the following chemical composition (mass %): C≤0. 285” 0. The method correcting point-by-point the true stress-strain data in the range of non-uniform deformation by the use of finite element analysis has been introduced for stainless steel [24, 32]. 304/304L) and EN 1. 050” | 1. Let's calculate the K-factor for a metal sheet having a thickness of 1 \text { mm} 1 mm and bent to an angle of 90^\circ 90∘. Includes additional data and reference information carefully. 5°. Datasheet-3: The following table lists 1. 5 in sheet metal design and processing. Stainless Steel, type 316 (17 Cr - 12 Ni - 2 Mo) 16: Stainless Steel, type 304 (18 Cr - 8 Ni) 16: Titanium: 19: Thermal Conductivity - Unit Converter; Metals and their Melting Temperatures; Sponsored Links Related Topics Thermodynamics Work, heat and energy systems. World Material 153 posts. The 1. A common name for 304. Choose an option 2000mm x 1000mm (2m x 1m) 2500mm X 1250mm (2. The weight of stainless steel per cubic inch is 0. 33 1. This will massively increase "friction" forces. Type 304L has a carbon maximum is 0. The k-factor is just a multiplier that provides a precise estimate of the new position of the neutral axis. 25m) 3000mm x 1500mm (3m x 1. 15. The high chromium and medium nickel content make these steels capable for applications in. Bu Maming says. bend radius 3 / 32 material thickness 063 angle a dim 1 bend ded dim 2 dev Check Details bend deduction 90 deg angle 2 mt br bend allowance. 8 mm 25. 237) 0. 5% is ideal. 286 pound, per cubic foot is 495 pounds. 10 Mild Steel, Smooth 75 (24) . So we bend a lot of mild steel. 26 2. Stainless steel 304 is an austenitic grade that can be severely deep drawn. Jakarta Barat NusantaraJayaAbadi. The K factor is the most important and elusive variable of bending, because it varies both as a function of the material and according to parameters such as angle and tooling. 1. 4404 35N -1. Box 1625 Idaho Falls, Idaho 83415-3760 United States of America (208) 526-9354, robert. SUS304 material is a Japanese JIS standard and the most commonly used stainless steel, containing 18% Cr and 8% Ni. 02" | 0. tR = tF + 459. Steel Cold Rolled 200 (93) . 17-4 PH is more resistant to chloride-induced stress corrosion cracking (SCC) than 304 stainless steel, making it ideal for coastal and marine applications. This means that the neutral axis cannot migrate past the midpoint of the material (i. Austenitic grades are the most commonly used and accounts for more than 70% of production with type 304 the most common. tK = tC + 273. Both 17-4 PH and 304 stainless steel are highly corrosion-resistant alloys that withstand various corrosive environments. This is for air bending in uncoated die/punch sets with material thickness bends. Hot food in stainless steel containers. 0 % strain vs. Refer to Tubing Data439 - UNS S43035: AISI Type 439 (also known as ASTM XM-8) is a ferritic stainless steel designed to resist corrosion in a variety of oxidizing environments from fresh water to boiling acids. Always verify product details with the technical data sheet and consult. MATERIAL, BEND RADII AND MINIMUM BEND SIZE CHARTS. The average Density of Stainless Steel is 8000 Kg/m3, which is slightly heavier than Carbon Steel. 35. Diameter. Yes. 5 13 4000 30° R1 12v 0. 3: Steel Stainless Austenitic (310) 14. 345-74% iron <= 2% manganese; 8. Type 304 is sometimes also referred to as 18/8, a. It is a general term for stainless acid-resistant steel, which resists corrosion from atmospheric, acid, alkali, salt, and other media. Z 6 CND 17-12. 6 and wall thickness coefficient Y = 0. The K-factor also increases with harder materials such. The students are made aware of the fact that Paris Law is applicable for stress intensity factor range higher than the threshold value ΔK thGrade 304 Stainless Steel is an amazingly versatile material with countless uses. 10/19 schedule 40 steel pipes. ทนต่อแรงกระแทก – สแตนเลส 304 มีโครงสร้างที่มีความเหนียวที่สูง จึงทนต่อแรงกระแทก จะเหมาะสำหรับงานที่ต้องการความทนทานต่อ. 201 / 201LN. T = 1 \text { mm} T = 1 mm. 030″. Ad. 304 AND 316 STAINLESS STEEL PROOF LOAD, LBS 1750 4250 5850 7800 12400 TENSILE STRENGTH MIN. 85 Ground Sheet 1720-2010 (938-1099) . Stainless steel is a type of steel that contains less than 2% carbon (C) and more than 2% iron. 2. 2 W/m·K at 100 °C (9. Stainless steel 304 is less dense than 316, but has slightly higher density than stainless steel 430 at 7750 g/m 3. The most common grade of austenitic stainless steel is 304 (1. 8 Lock Washer ASTM A276 304 Stainless Steel 9 Stem Washer ASTM A276 304 Stainless Steel 10 Diaphragm Washer ASTM A536 65-45-12 Epoxy Coated Ductile Iron 11 Diaphragm* Buna-N (Nitrile) 12 Disc Retainer ASTM A536 65-45-12 Epoxy Coated Ductile Iron 13 Seat Disc* Buna-N (Nitrile) 14 Spacer Washer* x5 NY300 Fiber* 15 Disc Guide. The density of stainless steel 304 is 7,930 kg/m3 or 7. The material structure factors for 321 and 304 steels are 9. 037” | 0. Alfredo Davila Aaron Mechanical Engineer Published Mar 28, 2019 + Follow The constant volume law. This Table is applicable to Never-Seize paste and Fel-Pro lubricant, K=0. 1 A36 Steel 3/8” less than 50 53. Alloy 24ST. 153 Washington Avenue, PO box 294 North Haven, CT USA, 06473-1191 Emergency Number: 203. The chemical compositions of the three heats of base metal and the three heats of filler metal are given in Table 1, and the room temperature me chanical properties are listed in Table 2. It is the standard “18/8 stainless” that is commonly found in pans and cooking tools. 5% is ideal. 00, Mn≤2. 스테인레스강은 약 12% 정도의 Cr(크롬) 을 함유해 내식성을 나타내는 Martensite stainless Steel 로 시작되었으나, 내식성이 더 우수한 Austenitic stainless steel 300 계열이 더 많이 사용되고 있습니다. -304 Sheet too? Reply. Once the three tables are in the correct format as above,. 07% . 2 W/m·K at 100 °C (9. 456. SS 304 stainless steel physical properties are listed in the table below such as density, melting point, specific heat, electrical resistivity, elastic modulus (modulus of elasticity),. Copper, Ductile Iron, Carbon Steel, Stainless Steel and Aluminum Piping Materials - Temperature Expansion Thermal expansion of typical piping materials. 5 9 4000 30° 1. Friction tests using the “ball-on-disc” technique at constant velocity (0. The best known grade is AISI 304 stainless, which contains both chromium (between 15% and 20%) and nickel (between 2% and 10. Factor 1 sensors are readily available in stainless steel versions rated up to IP69K for high pressure and temperature washdown, so it is likely a version will be available to fit most applications. AvestaPolarit 1 has reported data for AISI 304 tested in tension at 0. 8 times the thickness of the material. 5%) metals as the main non-iron constituents. By subjecting grade 301 to controlled analysis it is capable of retaining sufficient ductility even in ½ hard conditions. The main difference between type 304/304L and type 316/316L is the addition of 2–3 wt% molybdenum in the latter. Churchill Friction Factor Formulae and Calculator ; Pipe Friction Equations Within Pipe For Fluid Flow ; Link to this Webpage: Copy Text to clipboard. It is an austenitic stainless steel. Three general classifications are used to identify stainless steels. A660/A660M-21 Standard Specification for Centrifugally Cast Carbon Steel Pipe for High-Temperature Service. 00033 (cover-age factor k = 1), less than one-tenth of the emissivity of the bare stainless steel plate. JINDAL L Shape Stainless Steel Angle, For Industrial. While 304 stainless steel is a higher-priced option. ASTM A193/A193M B16 2 1/2 & under 125,000 105,000 C35 A chromium-molybdenum-vanadium alloy used for high. 4 - can be calculated with ASME 31. The quality of the water regarding the health and safety of consumers is a matter of the utmost importance in the urban water-consuming system [3,. - ε -. This property has resulted in 304 being the dominant grade used in applications like. Stainless steel types 1. 40 mm 0. It is essentially non-magnetic when annealed and may become slightly magnetic when cold-worked. The 201LN variant is intended for applications at subzero temperatures. Stainless steel 304 and stainless steel 304L are also known as 1. 446 × 0. d = Pitch Diameter (m) K Df = Nut Friction Diameter (m) μ = oefficient of Friction Fastener Material Coefficient of Friction (μ) K-Factor 304 Stainless Steel 0. Based on their melting points, 304 SS has a melting range higher than 316 SS (by 50-100F). 1 × H M − M C × ( 1 − 0. The transformation of γ—austenite to complete α'—martensite (strain-induced martensite) through ε—martensite with no traces of deformation nanotwins was reported on rolling austenitic stainless steel (SS 304) with two different rolling strains (50% and 75%) at room and cryogenic temperatures. 6. Sustainable building with Stainless steel - The David L. ) and most stainless (304 etc. 1. A 304 Stainless Steel similar to the Class 1, but has been carbide solution treated and strain-hardened. The properties of 304 stainless steel including chemical properties, physical characteristics, thermal properties and mechanical properties, etc. 8 Square Head; Low Head Socket Cap Screws. SUS304 material is a Japanese JIS standard and the most commonly used stainless steel, containing 18% Cr and 8% Ni.