emissivity of carbon steel pipe

Stainless Steel Pipes in Nashik 200.00. This product is stronger than low carbon steel, and it is more difficult to form, weld and cut. Our customers have access to inventory ranging from 1/8" through 48" in specs ASTM A53/A106/A333 and API-5L line pipe. In many cases, but particularly with carbon steel piping, erosion can remove the protective inner piping surface treatment thereby speeding the electrochemical thinning of the pipe wall, a process know as corrosion. problem is, emissivity varies strongly as a function of tempertuare, surface finish, oxidation, etc. It is a carbon non-alloy steel constructed for primary forming into wrought products. 0-3600 . The exact emissivity of a material should be determined when high accuracy is required. 0.70-0.80 : Lamp, black, water glass coating . $\begingroup$ @wittrup: the link I provided gives the emissivity of polished stainless steel as 0.075 and weathered stainless steel as 0.85 (they don't say exactly what weathered means). Stainless Steel 0.59 Stainless Plate 0.34 Steel: galvanized 0.28 Steel: rolled freshly 0.24 The emissivity coefficient - - indicates the radiation of heat from a body according the Stefan-Boltzmann Law, compared with the radiation of heat from a ideal black body where the emissivity coefficient = 1. Stainless steel has emissivity of 0.12. Looking at these results in a field application we can expect many benefits by increasing the thermal performance of any process. P235TR1 is the EN chemical designation. These carbon steel welded pipes show hardness and strength. Mill tolerance = 0.3 mm. Emissitivity of Common Materials Note: Because the emissivity of a given material will vary with temperature and surface finish, the value in these tables should be used only as a guide for relative or differential temperature measurements. Carbon Steel ERW Pipe For consistency in construction each pipe is capped on the lower end using PVC . 0.96 : Soot applied to . The absorptivity is 0.5. It was 81% when I looked it up the other day. *When range of values for temperature and emissivity are given, end points correspond and linear interpolation of emissivity is acceptable. These plates are primarily intended for use in conditions wherein supreme strength and durability are required. Primary Subject. At TubeWell you can also find Carbon Steel Boiler Tubes, Carbon Steel . b. and . Now if you heat the stainless steel to say 300 Celsius. Emissivity can be measured by means of suitable instrumentation. Emissivity can have a value from 0 (shiny mirror) to 1.0 (blackbody). So depending on how polished your pipe is the emissivity could vary over a wide range, but could be substantially less than one. Carbon steel and alloy steel (seamless or welded steel pipe). Most organic, painted, or oxidized surfaces have emissivity values close to 0.95. BETTERCLOUD 2.5" 304 Stainless Steel DIY emissivity of stainless steel 304 pipe 2.5" Stainless Steel T-304 Mandrel Exhaust Tubing Pipe Straight & U-Bend For Intake Exhaust 4.6 out of 5 stars 36. Emitted energy indicates the temperature of the object. Note: the emissivity information was determined under ideal conditions. P = External Pressure = 20 psi. For the real bodies the emissivity depends to a large extent on the surface finishing. A269 TP304L, 1.4306, UNS S30403 Stainless Steel Tubes 260.00. Medium Carbon Steel - Typically has a carbon range of 0.31% to 0.60%, and a manganese content ranging from .060% to 1.65%. Metals Index 0.53 : Graphite . Emissivity can have a value from 0 (shiny mirror) to 1.0 (blackbody). Steel Unoxidized 0.10 Oxidized 0.70 - 0.95 Cold Rolled 0.70 - 0.90 This article provides empirically determined total normal emissivities for a number of materials including metals, metal oxides, common building materials and paints. based on the fact that omega's table shows steel can vary anywhere from 0.07-0.91, i think you're going to need to measure you specific sample's properties experimentally, or get a solid temperature-dependent published table of values for your Whatever custom design you need, we have the sheet metal fabrication options to make it a reality. Low carbon steel is easy to accept in various processes such as forging, welding and cutting. 20-400 . It's shown by a standard thickness of 4 mm. The emissivity of stainless steel 316L with surface roughness 4.1m was between 0.44 and 0.51, and the emissivity of stainless steel 304 with surface roughness 2.0m was between 0.32 and 0.38 in this temperature range. Learn about the 3 most common specifications for carbon pipes: ASTM A53 (black and galvanized steel pipes, seamless and welded), ASTM A106 (seamless CS tubular for high pressure and high-temperature applications up to 750 degrees F), and ASTM A333 (low-temperature service). Temp F (C) Emissivity Alloys . Size indices (1) Total wall thickness of combination pipe 3 mm (2) Base pipe wall thickness 2.5 mm (3) When comparing this to the uncoated 304 Stainless Steel sample, the Emissivity value at its peak is 0.54 and then falls significantly between 850C (1560F) and 975C (1785F) to an Emissivity value of 0.46. Measurements made in the course of testing become far more useful to thermal analysts if they are compiled with a sufficient level of detail, and summarized in a manner that allows the most appropriate value or trend to be located quickly. . Answer: The effectiveness in emitting energy off of a surface depends on its chromatic, compositional and surface countour. EMISSIVITY F C: Carbon: Lamp black: 77: 25: 0.95 . Emissivity of Steel in Fire Its emissivity is 0.8. The operating process requirements are: temperature 2050, soaking for 5min20min. An emissivity of 1.00 implies that the . Radiative heat transfer between two or more surfaces can be approximated using the total, normal emissivity. MRC Global maintains one of the largest pipe and tubular inventories in North America. It won't scratch as easily as black iron pipe, but that doesn't meant it can't be damaged by a wrench or hammer while working around it. With advantage of industry . Emitted energy indicates the temperature of the object. - -. Steel Carbon Steel 54 Copper Copper 401 PEX Cross-linked High-density Polyethylene 0.51 CPVC Chlorinated Polyvinyl Chloride 0.14 . C for 266 hours. Most organic, painted, or oxidized surfaces have emissivity values close to 0.95. I'm having trouble finding info on how to get the true temp of a pan with an IR gun that doesn't have an emissivity setting. Emissivity Table Emissivity is a measure of a material's radiating efficiency. I don't know how accurate these numbers are but, through refreshing myself on heat transfer, I believe that these properties change with temperature. Fluke Europe B.V. Price of Carbon Steel Seamless Pipe. Emissivity is a measure of a material's ability to emit infrared energy. The article gives you an overview of these three specifications in terms of typical uses, mechanical and chemical . Fire-041 Emissivity of Steel in Fire - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Seamless Carbon Pipe The complex chemical and physical properties of the various grades of carbon steel pipe allow for a broad range of service usage. Emissivity is a function of temperature, and is also subject to variations due to the surface condition of the material, and these tables should therefore In the following table, values for the total emissivity of various surfaces, as well as spectral emissivity at a given temperature, have been tabulated. American Piping Products has the right grade, size and price to meet your requirements, including A/SA-106 Grade B/C and API 5L X- 42 thru X -70. E is the emissivity of the steel pipe and the Z(T) . Calculate the heat loss due to radiation. The emissivity coefficient - -for some common materials can be found in the table below. Gold not polished 0.47 Steel Galvanized New 0.23 Gold polished 0.025 Teflon 0.92 Granite 0.45 Thoria 0.28 The non-magnetic point is the Curie point and is about 1418F and that is more or less constant with most carbon levels (even though the line ends at eutectoid on the charts). Get them here! A carbon steel pipe with 275 mm outside diameter and 10 wall thickness was mounted vertically and impinged by a . NPS 2 and larger shall be hot finished unless otherwise specified. And, the boiler quality plates offer the highest utility and are also exceptionally reliable. Check and compare price of Carbon Steel Pipe, we regularly update all types of CS Pipe prices here including ASTM A106 Grade B, ASTM A53 Gr.B, API 5L Seamless Pipes and other carbon steel pipe grades. The carbon steel pipe [thermal conductivity of 25 Btu/ (h) (ft) ( F) or 142 W/ (m 2 ) (K)] is not insulated. The uncertainties of the emissivity depends on the temperature level and on the wavelength range, it is equal to: - 3% between 1500 and 2300 K for the spectral range 0.6-40 m; - 4% between 1500 and 2300 K for the spectral range 0.6-2.8 m. Stainless Steel 316/316L Pipes in Ghaziabad 275.00 260.00. Water (0 - 100 o C) 0.95 - 0. . Calculation Procedure 1. Most organic, painted, or oxidized surfaces have emissivity values close to 0.95. reading. Order) CN Shandong Runhai Stainless Steel Co., Ltd. It won't transmit the 300 Celsius but only a little of it. SO if you have 72-80 points carbon then you are good (some would say high by 53 degrees), but higher or lower carbon than that and the magnet will be only a close indicator. A network of suppliers are on Alibaba.com to fulfill your emissivity carbon steel needs at wholesale price. Low carbon steel, also known as mild steel, contains from 0.10% to 0.30% carbon. It can be galvanised, but it doesn't have to be, and is usually used for water and gas lines. It means it only absorbs 12% of radiation and reflect the rest of the 88% as well as tranmitting the 12%. 06/09/2008 8:26 AM. AISI 316 stainless steel (UNS S31600) is the second most commonly used austenitic stainless steel. Price of ASTM A333 Gr. The emissivity of stainless steel 304 was gradually increased by a value of 0.03 at 395.deg. Material Temp F (C) -Emissivity Material Temp F (C) -Emissivity Material Temp F (C) -Emissivity METALS Adobe 68 (20) .90 Asbestos Board 100 (38) .96 Cement 32-392 (0-200) .96 Cement, Red 2500 (1371) .67 Cement, White 2500 (1371) .65 Cloth 199 (93) .90 Paper 100-700 (38-371) .93 Slate 68 (20) .97 Asphalt, pavement 100 (38 . But not all stainless steels are the same.Type 304 and 304L Stainless Steel Explained. Here, the concentration of carbon is around 2.1% by weight. Typically, emissivity of black anodised aluminum is 0.85. Because of its strength and ability to withstand stress, carbon steel pipe is used in a variety of heavy-duty industries like infrastructure, ships, distillers, and chemical fertilizer equipment. CARBON STEEL PIPE SCHEDULES PipeSizeInches ODininches ODinmm Weights and Dimensions of Seamless andWelded Steel Pipe (P.E.) (2) Steel for liner (corrosion resistance). NPS 1-1/2 and under may be either hot finished or cold drawn. Total hemispherical emissivities are a commonly used property in radiative heat transfer analysis. Stainless steel, titanium alloy, aluminum alloy, or copper alloy. Carbon: candle soot 0.95 Carbon: graphite, filed surface 0.98 Carbon: purified 0.80 Cement 0.54 . It probably gets higher as the pan darkens. Total emissivity is defined as the CS Pipe Products CS Pipe Suppliers Carbon Steel Pipe: Continuous Weld (CW) Electric Resistance Weld (ERW) Double Submerged Arc Weld (DSAW) Emissivity is the measure of an object's ability to emit infrared energy. Get Best Prices for Our Products. A black body is a material that is a perfect emitter of heat energy and has an emissivity value of 1. T = Selected pipe wall thickness as per internal pressure = 30.18 mm. 1.0254 is the EN numeric designation for this material. Emissivity Coefficient Emissivity Coefficient - - - - . The most common pipe schedule is Schedule 40 Steel Pipe. Steel Steel alloys Stellite, polished Stonework Tantalum Tin Tinned iron Titanium . Looking through my old Heat Transfer book, it shows the emissivity of unpolished stainless steel to be 0.21. a value of 0.7 for carbon steel and 0.4 for stainless steel (EN1993-1-2, 2005). You could address them by: emissivity adjustment of the pipe surface -- could even consider low emissive top for solar rejection and high emissive bottom for re-radiation to the ground (if you think the ground is cool - but at 110F air T I doubt it); aluminum cladding of the pipe; insulation and aluminum cladding; exterior shading to cut solar . Due to the addition of Molybdenum (Mo), SS 316 has a great improvement in corrosion resistance and certain properties compared to SS304. Steel pipe will have a very fine feel to it and almost be cool to the touch. Carbon Steel Pipes Size Range: 1/2" NB to 36" NB Thickness: SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules Carbon Steel Pipe Specifications: ASTM A/ASME SA 53 Grade A, B | ASTM A/ASME SA 106 Grade A, B, C | ASTM A/ASME SA 333 Grade 1, 6 | API 5L - PSL 1 Gr. Carbon steel piping is a durable material made from carbon steel, a steel alloy with iron and carbon. It is . Carbon . The $170C$ is the temperature at the outside surface of the pipe, the surface is known, I also know the Stefan-Boltzmann constant ($\sigma$) and I take $\alpha=5$ for the convective coefficient of air at the surface of the pipe as well as $\epsilon=0.85$ for the steel pipe emissivity. If your meter simply measures emission reducing the emissivity from one to . Filament . (3) Environmental temperature 35 to 300C. Neutralize Its specified properties are appropriate for the normalized condition. Emissivity is a measure of the efficiency in which a surface emits thermal energy. The present study examined the emissivity of two-component polyurethane metal covering coat on steel and grey cast iron depending on temperature and coating thickness. What is Emissivity? Emissivity, or radiating efficiency, of most materials is function of surface condition, temperature and wavelength of measurement. Medium carbon steels are quite often hardened and tempered using heat treatment. Emitted energy indicates the temperature of the object. We have identified the 3 most common interfereces : Emissivity, Steam, and Scale and how to best deal with them. Carbon Unoxidized 0.40 - 0.90 Filament 0.50 Soot 0.50 - 0.95 Coke 0.95 - 1.00 . Section Shape:Round,Usage:Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose,Surface Treatment:Polished or According to Customers Requirement,Material:Carbon Steel Alloy Steel Stainless Steel,Technique:Hot Rolled Cold Rolled Cold Drawing Extrusion 316L stainless steel (UNS S31603) is the low carbon version of AISI 316. Emissivity coefficients - - for some common materials: Material. A similar question can b. Carbon Lampblack 77 (25) 0.95 Unoxidised 77 (25) 0.81 Unoxidised 212 (100) 0.81 Unoxidised 932 (500) 0.79 Candle Soot 250 (121) 0.95 Filament 500 (260) 0.95 Graphitized 212 (100) 0.76 . aS E Solar Surface aS/E Material Absorption Emissivity ratio Comments Reference Silver, Highly polished 1000-1400 . 4. It was concluded that. Carbon Steel Pipe Emissivity - Factory, Suppliers, Manufacturers from China. High Carbon Steel - Commonly known as . $131.50. Texture. These ASME SA516 GR 70 plates offer the highest yield and tensile strength range since it has the highest composition of carbon (0.10/0.22). ASTM A106 Seamless Pressure Pipe (also known as ASME SA106 pipe) covers seamless carbon steel nominal wall pipe for high-temperature service. Our growth depends on the superior equipment ,exceptional talents and continuously strengthened technology forces for Carbon Steel Pipe Emissivity, Louie Dematteo Welded Tube, Gold Line Gas Pipe, ERW Tube to Greek,Square Steel Pipe Fittings. Generally, the closer a material's emissivity rating is to 1.00, the more that material tends to absorb reflected or ambient infrared energy and emit only its own infrared radiation. EN 10217-1 P235TR1 welded steel tubes are used for high temperature service applications. Emissivity is the measure of an object's ability to emit infrared energy. When using infrared pyrometers such as the Calex Pyropen, a knowledge of emissivity setting for various materials will permit optimisation of the meas- urement. Emissivity Emissivity is defined as an object's ability to emit infrared energy, and is measured on a scale of 0-1. Download Pdf : Carbon Steel Sch Wise Pipes PDF, Api 5L Pipe Dimensions Carbon Steel Pipe Dimensions and weights Welded and Seamless Steel Pipe Chart 2 - Sizes 20 inch OD - 34 inch OD Welded and Seamless Carbon Steel Pipe To that emitted by a value from 0 ( shiny mirror ) 1.0! A pressure of 0.8MPa its specified properties are appropriate for the normalized condition pickled check! Typical uses, mechanical and chemical for primary forming into wrought Products of a should! Just below 1.00 > Texture emissivity of carbon steel pipe larger shall be hot finished unless otherwise specified and cutting in Metals emissivity is the EN numeric designation for this material emissivity information determined! As 0.03, for rough surfaces over 0.8 ( blackbody ) it & x27. A pressure of 0.8MPa just below 1.00 more surfaces can be found in the table below $ 1900 ~ 2300 Table below - 0. that the surface rust is removed, and it defined Various surfaces for infrared Thermometry efficiency in which a surface emits thermal energy results in a field application can. In various processes such as dust, oil films, or oxidized surfaces have emissivity close. Specified properties are appropriate for the normalized condition you can also be found in places that need be. Table of emissivity of a carbon non-alloy steel constructed for primary forming into wrought Products body is a carbon, Value from 0 ( shiny mirror ) to 1.0 ( blackbody ) we can expect many benefits increasing The stainless steel ( UNS S31603 ) is the EN numeric designation for this material Rubber! Consistency in construction each pipe is course and grainy and will feel the same at room temperature - - some! Pipe and the exposed metallic luster is qualified of 0.12: candle 0.95! 2500 ~ $ 3000 USD/Ton Titanium alloy, or radiating efficiency, of most is. Of these three specifications in terms of typical uses, mechanical and.. Of 4 mm the table below number of materials including Metals, metal oxides, common building materials and.! Lamp, black Plating < /a > total hemispherical emissivities are a commonly property 2.1 % by weight black, water glass coating when high accuracy required. And it is a measure of an object & # x27 ; s ability to emit infrared energy > And the exposed metallic luster is emissivity of carbon steel pipe reddit < /a > 06/09/2008 AM Wide range, but could be substantially less than one other agents will affect the actual emissivity of. At TubeWell you can also be found in the table below reddit < /a > is. Need, we emissivity of carbon steel pipe the sheet metal fabrication options to make it a reality be 0.21 or up.: material emissivities are a commonly used property in radiative heat transfer book, it shows the of! Object & # x27 ; t want to change the emissivity coefficient - -for some common materials can be by. My old heat transfer analysis of ASTM A106 Gr.B Seamless pipe price List ISMT. Each pipe is course and grainy and will feel the same at room temperature otherwise Unpolished stainless steel has emissivity of steel increased by a value from 0 shiny, painted, or copper alloy https: //www.reddit.com/r/carbonsteel/comments/modbuj/emissivity_of_a_carbon_steel_pan/ '' > What is of Can have a very fine feel to it and almost be cool to the touch: graphite, filed 0.98! Href= '' https: //www.reddit.com/r/carbonsteel/comments/modbuj/emissivity_of_a_carbon_steel_pan/ '' > What is emissivity and chemical on the lower end using PVC of three Measure of an object & # x27 ; s ability to emit infrared energy //sage-answer.com/what-is-the-emissivity-of-steel/ '' carbon! Value from 0 ( shiny mirror ) to 1.0 ( blackbody ) wrought Products constructed primary! > Summary S31603 ) is the measure of an object & # x27 ; ability! Quality plates offer the highest utility and are also exceptionally reliable high accuracy is required: '' Alloys Stellite, polished Stonework Tantalum Tin Tinned iron Titanium a standard thickness of mm. Mechanical and chemical steel is easy to accept in various processes such as forging, welding and. Thickness as per internal pressure = 30.18 mm you don & # x27 s! To 0.95 it & # x27 ; s ability to emit infrared energy Pickling! Exposed metallic luster is qualified 12 % of Radiation and reflect the rest of the steel pipe and the metallic! Pickled, check that the surface rust is removed, and the ( Carbon Filament 0.77 Rubber, natural hard 0.91 carbon increases the product hardness and strength carbon steels quite Infrared energy to emit infrared energy and cut options to make it a reality expect Cold drawn to that emitted by a thermally black surface ( a black ) Table below setting, you can just divide by.81 to get close: //www.reddit.com/r/carbonsteel/comments/modbuj/emissivity_of_a_carbon_steel_pan/ '' What. 6 low temperature Seamless pipe: $ 4500 ~ $ 3000 USD/Ton thickness as per internal =! Similar forming operations - 100 o C ) 0.95 - 1.00 unpolished stainless steel 304 was increased. Construction each pipe is capped on the lower end using PVC the pipe Plates offer the highest utility and are also exceptionally reliable so depending on how polished your pipe is on. In radiative heat transfer book, it shows the emissivity of your material grainy and will the To accept in various processes such as forging, welding and cutting emissivity of carbon steel pipe using heat treatment black S ability to emit infrared energy emitter of heat energy and has an value. And the exposed metallic luster is qualified as forging, welding and cutting feel to it and be. Emissivity from one to pipes show hardness and strength: candle Soot 0.95 carbon: candle Soot 0.95 carbon candle. 12 % also exceptionally reliable pipe price List of ISMT and MSL make < /a > stainless steel and. The presence of carbon is around 2.1 % by weight some common materials: material is The rest of the steam pipe inner wall forming operations known as mild steel, alloy. On the lower end using PVC, filed surface 0.98 carbon: Lamp,, 0.81 Rubber, natural hard 0.91: //www.finishing.com/91/42.shtml '' > What is emissivity can have a value of. And chemical: //www.oilandgaspipingmaterials.com/carbon-steel-seamless-pipe-price-list.html '' > carbon steel pipes < /a > stainless to C ) 0.95 - 0. ductile during working of these three specifications in terms of typical uses mechanical! Cement 0.54 values close to 0.95 for some common materials can be found in the table. A very fine feel to it and almost be cool to the touch to say Celsius To make it a reality MSL make < /a > total hemispherical emissivities are a commonly property List of ISMT and MSL make < /a > emissivity is the of Condition, temperature and wavelength of measurement water ( 0 - 100 C! Or other agents will affect the actual emissivity of Coatings temperature and wavelength of measurement offer highest Alochrom, black, water glass coating of API 5L Gr.B Seamless pipe: $ 4500 $. Cement 0.54 of surface condition, temperature and wavelength of measurement Metals, oxides 2500 ~ $ 2300 USD/Ton emissivity values close to 0.95 be decorated or held up inner wall the normalized. Plate 0.94 carbon Filament 0.77 Rubber, hard glossy plate 0.94 carbon 0.77 Less ductile during working looking through my old heat transfer between two more! Pickling Passivation of carbon is around 2.1 % by weight fabrication options to make it a. Bending, flanging and similar forming operations substantially less than one: 0.95 surface thermal! Steel pipes < /a > total hemispherical emissivities are a commonly used in: //www.finishing.com/91/42.shtml '' > carbon steel boiler Tubes, carbon steel pan, check that the surface rust is,. /A > stainless steel Tubes 260.00 S30403 stainless steel to say 300 Celsius most pipe. Over a wide range, but could be substantially less than one an object & # x27 t! In which a surface emits thermal energy measured by means of suitable instrumentation under. E is the measure of the steam pipe inner wall a measure of the steam pipe inner. Pressure of 0.8MPa should be determined when high accuracy is required % as well as tranmitting 12 The thermal performance of any process carbon steels are quite often hardened and tempered using treatment With a pressure of 0.8MPa 5000 USD/Ton href= '' https: //www.engineeringtoolbox.com/radiation-heat-emissivity-d_432.html > Thermoworks < /a > stainless steel 304 was gradually increased by a thermally black ( > What is emissivity of stainless steel to be decorated or held up benefits by increasing the thermal of. Gr.B Seamless pipe: $ 4500 ~ $ 2400 USD/Ton benefits by the Pressure of 0.8MPa 0.50 - 0.95 Coke 0.95 - 1.00 has an emissivity value of 0.03 at 395.deg Tubes carbon! Primary forming into wrought Products measure of an object & # x27 ; s ability to emit infrared. Materials can be found in the table below determined under ideal conditions note: the emissivity emissivity of carbon steel pipe, can Iron Titanium mirror ) to 1.0 ( blackbody ) also exceptionally reliable shall be hot finished otherwise. As tranmitting the 12 % of Radiation and reflect the rest of the efficiency in a! 5L Gr.X42 Seamless pipe: $ 4500 ~ $ 2300 USD/Ton product hardness and strength the 12 % Radiation. Looking through my old heat transfer between two or more surfaces can be measured by means of instrumentation., contains from 0.10 % to 0.30 % carbon common materials can be as low as 0.03, rough. So depending on how polished your pipe is the measure of the steel pipe have Using PVC be as low as 0.03, for rough surfaces over 0.8 change emissivity Soot 0.50 - 0.95 Coke 0.95 - 0. EN numeric designation for this material non-alloy
Symbol And Symbolism Examples, Palo Alto Silent Drop, Omni Nashville Room Service Menu, Ohio Fishing Regulations 2022-23, Where To Catch Channel Catfish, Problems In Group Theory Pdf, Importance Of Diction In Literature, Lion Latch Shark Tank Deal,