Some of our calculators and applications let you save application data to your local computer. 0000159988 00000 n 0000142860 00000 n 0000175797 00000 n 0000005127 00000 n Section Properties Apps Downloads ps = density of the fluid or substance (kg/m3) Sg = Specific Gravity of the substance Used in plastic bags,six-pack rings, various containers, dispensing bottles, and most famously for plastic wraps, is not often recycled through curbside programs. 0000002775 00000 n In fact, not only can plastic be found in a variety of different shapes and colors, but also in many different types. 0000152962 00000 n Specific gravity and density are especially relevant because plastic is sold on a cost per pound basis and a lower density or specific Yield point is the first point where the specimen yields, where the specimen's cross-sectional area begins to contract significantly, or where the strain can increase without increase in the stress. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Therefore, the specific gravity (which is dimensionless) for a liquid has the same numerical value as its density in units of g/cm3. In its rigid form, PVC is largely used in the building and construction industry to produce door and window profiles and pipes (drinking and wastewater). Environmentally-speaking its among the worst types of plastic: first, it is regarded as notbiodegradable. One of the ASTM test methods for plastic commonly seen on data sheets is the test for Density and Specific Gravity (SG). Engineering Mathematics 0000124911 00000 n 0000042285 00000 n Learn More, Formally confirming that your products and services meet all trusted external and internal standards. 0000161897 00000 n LLDPE 0.91-0.94 Second, polystyrene foam blows in the wind and floats on water, due to its low specific gravity. xb```f`g`g`0cb@ !V6C'``D&yY(J-Ftt@UJ `H Dvp48(kha``aAA8koxD(lb'ftb~ef.aS-`0`"#a(1&' .8ffgS D!f' Moreover, the decomposition of BPA in landfills does not occur meaning that this chemical will be persistent in the ground and will eventually find its way into water bodies contributing to aquatic pollution. 0000124314 00000 n If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. Polyvinyl acetate 1.19 If plastic cannot be identified in the six types above-mentioned, then it will be included in group number 7. Each one is different from the other and has different uses. Specific . Polypropylene 0.90-0.92 1 gallon of water weighs 8.33 lbs.
Expanded PVC sheet plastic is the ideal material where durable construction materials are needed. 0000155825 00000 n Only emails and answers are saved in our archive. Plastic Corporation. 0000136804 00000 n Hi! 0000171239 00000 n Helium gas has a density of 0.164g/liter It is 0.139 times as dense as air . Our Polycarbonate sheet offers a levelof safety that no other clear glazing material can match. Friction Engineering Do you have a packaging idea and need some guidance on which material is best? **Ji-Horng Plastic is a leading plastic injection molding manufacturer since 1986, for more information, please contact us!**. Plastics Synthetics Ultimate tensile strength is the maximum stress the thermoplastic material can withstand before failing, whichever occurs at the higher stress level. Learn More, Density and Specific Gravity ASTM D792, ISO 1183, K-SHOW:Visit us at K2022: Supporting Polymers and Materials Development, NEW SERVICE:CircularAssure - Services to help you close the loop in the circular economy for plastics, ARTICLE:Processability and evaluation programmes for recycled plastic materials, ARTICLE:Adhesives Quality Assurance Testing Programs, ARTICLE:Enabling Polymer Non-Wovens Development, CASE STUDY:Polymer Surface Contamination Resolution, CASE STUDY:Polymer Failure - Distribution and Dispersion of Fillers, Ensuring the Safety and Performance of Electrical Products, Testlopedia - The Plastics Testing Encyclopedia, Plastics Circular Economy Solutions - CircularAssure, Physical and Mechanical Testing of Polymers, Thermal Analysis of Polymers and Plastics, Polymer Regulatory and Consulting Services, Polymer Product Processing Development Support, Microbeads and Microplastics Testing and Consultancy, Coatings and Thin Films Analysis and Testing, Supporting Polymers and Materials Development, Processability and evaluation programmes for recycled plastic materials, Adhesives Quality Assurance Testing Programs, Polymer Failure - Distribution and Dispersion of Fillers. POM 1.41-1.43 The information contained in this article is for general information purposes only. WebSupplier: U.S. 0000005946 00000 n This information can be used to tell whether plastic will float (or sink) if dropped in water (Buoyancy). 0000133447 00000 n Civil Engineering In the next blog post, we will explain which of these plastic types can be recycled and which not, so stick around! 9;-h3UR{SD bD=NSH3)0lefD}n 81 c+0!o XFu#N/? Density in plastics is the measurement of mass per unit volume. View Cart. Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse! 0000160831 00000 n Polychloroprene rubber 1.23 Bearing Apps, Specs & Data It is a very inexpensive resin per unit weight and easy to create, for these reasons it can be found everywhere: from beverage cups, insulation, packing materials to egg cartons and disposable dinnerware. Polycarbonates are commonly used for eye protection in the creation of lenses for sunglasses, sport and safety goggles. Polycarbonate 1.2 The American Society for Testing and Materials (ASTM) is an organization that defines and sets standards to ensure good quality and workmanship. i.e. Polytetrafluorethylene 2.27, Working Days & hours Details for Alfa Plast Mould, Alfa Plast Mould 2008 | All Rights Reserved. Strength of Materials 0000174998 00000 n WebThe Specific Gravity - SG- is a dimensionless unit defined as the ratio of density of the material to the density of water at a specified temperature. 0000142018 00000 n The weight will appear in both metric and common US units. Polyethylene The purpose was to provide a consistent national system to facilitate recycling of post-consumer plastics." First, we have to know that the formula of density is: As formula shown, density is total mass of the object divided by total volume of object, which means: 1 gram per cubic centimetre or 1 kilogram per cubic metre.Density of water is1 gram per cubic centimeter (1 g/cm3), but actually, the exact density of water is not really 1 g/cm3, but rather a bit less (very, very little less) than 1, so we can say thatgenerally the weight and volume of water is the same.What's the meaning of "Specific Gravity"?Specific Gravity means specific value of an object undernormal temperature and pressure. Description: This 3/8" OD x .062" Wall Yellow Polyethylene Tubing has a working pressure of 120 PSI @ 72F. More frequently, however, anything over 1.53 is called high-index. 0000117111 00000 n Phone: 860-963-1976 Physics You have no items in your cart. Specific Gravity (SG) is defined as the ratio of One of the most commonly used plastics, our heavy duty acrylonitrile butadiene styrene, or ABS sheeting, has a high impact resistance and durability to be used for automotive, printing, and display applications. 0000145640 00000 n WebDensity of Plastics Density is calculated by dividing the mass of the material by the volume and is normally expressed in g/cm3. 0000004927 00000 n Example: A gallon of oil weighs 9.5 lbs per gallon9.5 lbs / 8 = 1.187 specific gravity. As usual, remember to opt for reusable alternatives to plastic, to avoid purchasing the dangerous types and recycle as much as possible the types of plastic that you can! Engineering Book Store 0000006910 00000 n 0000158889 00000 n WebThough some manufacturers use grams per cubic centimeter to indicate the weight of their products, others merely provide the specific gravity of their material. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. Continue reading to learn more! Finishing and Plating Finish: Solid. PA-6 1.12-1.13 used for pressurized water systems - sprinkler.. highly resistant to acids, bases and many solvents, resistant to a variety of acids and bases, may be damaged by some solvents and chlorinated hydrocarbons, usable for water, gas and drainage systems, similar to PVC - but designed for water up to, resistant to abrasion, acids, bases, solvents and much more. This test is often seen with the designation ASTM D792. Engineering Calculators Butyl rubber 0.92 0000102892 00000 n Styrene-butadiene 0.93 Gravity: Viscosity CPS Intertek is the industry leader with employees in 1,000 locations in over 100 countries. The specific gravity of a substance is a comparison of its density to that of water. Polypropylene is the second-most widely producedcommodity plastic and its market is forecasted to grow even more in the following years. WebPURPOSE: The title filler having a low specific gravity and excellent affinity for plastics and retention of electric conductivity, prepared by applying a metallic coating to the surface of an isotactic polyolefin powder or particle etched in the presence of a specified chemical agent. 0000019679 00000 n These specialty materials have densities of up to 15 g/cc yet still have the moldability of plastics. We don't collect information from our users. 0000005504 00000 n Welding Stress Calculations United States Plastic Corp. and while we endeavor to keep the information up to date and correct, we make no representations or 0000086690 00000 n 0000117341 00000 n 0000126937 00000 n Web1 28768 DENSITY OF PLASTICS What is Density of plastic: The density of a substances is generally known as mass per unit volume. The specimen is weighed first in air (Weight A), and then weighed when immersed in distilled water at 23C (Weight B). Threads & Torque Calcs The lower the density or SG of a particular material, the more material per pound or surface area you will get. 0000002953 00000 n 0000127802 00000 n Fun fact: because it is VERY resistant to fatigue, PP is usually used for living hinges (the thin piece ofplastic that allows a part of a product to fold or bend from 1 to 180 degrees). CONSTITUTION: An isotactic polyolefin powder or particle of an average particle 0000170169 00000 n The most widely used member of the vinyl family, PVC is excellent when used for corrosion-resistant tanks, ducts, fume hoods and pipe. 0000131261 00000 n The member-related functions have been closed due to the deactivation of cookies. 0000011164 00000 n 0000072608 00000 n 0000148052 00000 n 0000125208 00000 n How about an incentive to share this post? Google use cookies for serving our ads and handling visitor statistics. Put theplastic specific gravityin perspective! To sum up, its a no-go. Portions throughout the same sample may also differ in density due to differences in crystallinity, thermal history, porosity, or changes to the material composition, such as the addition of a filler or pigment. 0000139528 00000 n Perhaps better known by its commercial name Styrofoam its highly inflammable and dangerous as it can leach harmful chemicals, especially when heated (which often happens because, as its found in disposable take-out containers, people oftentimes microwave it to heat up the food inside it). For example, some types of plastic are reusable and others arent because of the chemicals they contain; some can be recycled and others need to be disposed of in a different way. The density of water is 1.0 g/mL at room temperature, so the specific gravity is equal to the density of the object expressed without a unit. Flat Plate Stress Calcs Due to the different density of plastic, we can easily identify different plastics by "Buoyancy Test", for more information, please check out in related articles. 0000177508 00000 n or damage, or any loss or damage whatsoever arising from loss of materials, time or profits arising out of, 0000018128 00000 n The tests for density and SG are particularly significant in the custom sheet industry because plastic sheet is sold on a cost per pound basis. Beam Deflections and Stress So, keep reading! But if youre new to the industry, or dont work in a technical role, the information stated on material data sheets can leave you more confused than when you started. 0000162752 00000 n 0000129490 00000 n Electronics Instrumentation Now we need a minimum of 6.16 x 1.28 or 7.88 oz of shot capacity. 7 0 obj<> endobj xref 7 103 0000000016 00000 n 0000124655 00000 n Acrylic doesn't have as much impact resistance as polycarbonate; polycarbonate's tensile strength is greater than that of PVC; PVC's heat deflection abilities are lesser than Vivak's; and so on, and so on. 0000163869 00000 n In recent years, the use of these resins has been controversial: the basis of this controversy is their leaching that, occurring at high temperature, releasesbisphenol A, a compound that is on the list of potential environmental hazardous chemicals. WebMaterial density g/cc 1 g/cc = material density = specific gravity Therefore, knowing the specific gravity and with the help of the handy conversion table on the shared drive one Specially designed for marine applications, antiskid HDPE sheeting offers superior durability with the additional benefit of a non-skid surface perfect for high-traffic marine surfaces. the molded piece as compared to the weight of an equal volume of water This broad range of flexible Tygon tubing products are engineered to meet many user specifications including chemical resistance, fluctuations in temperature, abrasion, high purity and long servicelife. 0000050964 00000 n ), Copyright 2000 - This changes the ratio for our calculation; it is now 0.945/0.74 or 1.28. 0000014816 00000 n can be special ordered. 0000153750 00000 n Feedback Advertising These Thermo Scientific Nalgene bottles are lightweight versions of lab-quality bottles and can perform light-duty, general purpose work. These applications will - due to browser restrictions - send data between your browser and our server. Materials and Specifications Other custom sizes of trays, special partitions, flanges, outlets, etc. The difference of Density & Specific Gravity.
. 0000168199 00000 n 0000176664 00000 n As far as its disposal is concerned, HDPEis accepted at mostrecyclingcenters in the world, as it is one of the easiest plastic polymers torecycle. ~P2p@0$:+mbsuz! 1, Zhongshan Rd., Dacun Township, Changhua County 515, Taiwan (R.O.C. WebDensity of Plastics Material: Technical Properties Table. WebSpecific Gravity Information. PA-66 1.13-1.15 When the plastic that expanded beyond the container is removed we now find that the remaining cube of heated plastic inside the container weighs only 0.933 grams. 0000138434 00000 n Specific gravity of a material can be calculated by following equation: The testing method of SG for plastic systems is ASTM D792 and ISO 1183. SG of plastic is less compared to other materials influence its price; thus all plastic materials are sold on cost per weight basis. ABS 1.04-1.07 0000006323 00000 n Sponsored Links Health effects vary depending on the resin and plasticizers in this plastic that often Vibration Engineering 0000012608 00000 n Roto-molded LLDPE with thick walls for superior strength anddurability. Any reliance you place on such information is therefore strictly at your ownrisk. WebSpecific Gravity (SG) is defined as the ratio of density of the material to the density of water (1 g/cm3) at a specified temperature. 0000137613 00000 n The tests for density and SG are particularly significant in the custom sheet industry because plastic sheet is sold on a cost per pound basis. WebSimply enter the density of the material in which your are interested, select the shape from the drop-down list, enter the dimensions, then hit the Calculate button. Over 12,000 ASTM standards operate globally, including tests specific to plastics, to help consumers have confidence that the products they purchase will perform as expected. But they can also be found on mobile phones and, more frequently, in compact-discs (CD). When mixed with other substances, It can be made softer and more flexible and applied to plumbing, wiring, and electrical cable insulation and flooring. We carry carry hose barb fittings in a variety of materials suitable for all sorts of applications. WebSpecific gravity is the (unit less) ratio of the solid wood density to the density of water at the same temperature. 0000005093 00000 n Tensile yield strength is the maximum engineering stress in psi (or Pa) at which a permanent non-elastic deformation of the thermoplastic material begins. 0000007137 00000 n It has a durometer of 50 D, a tensile strength of 1600 PSI, a brittleness temperature of -76F, a specific gravity of .921, and an elongation at break. 0000004435 00000 n HWM7W=T+[h#E\Zc"YLGr>ZH At Plastics For Change, we are giving second life to discarded plastic numbers 1,2,4, and 5 and re-use them for the creation of various different products while cleaning our oceans! Heres a brief recap of what we have learned so far: We hope this blog post has provided some clarity about the differences among all these plastic types. 3t6/8lM2-lA Spring Design Apps On top of this, plastics number 7 is almost never recycled. Because its made with long unbranched polymer chains its much stronger and thicker than PET. Materials with an index between 1.53 and 1.57 are sometimes considered mid-index, while 1.58 and greater is considered high-index. WebSpecific gravity is the ratio of the density of a substance to the density of the same volume of water. LDPE is used for the infamous plastic bags that are usually used for a few seconds and then discarded. 2023 Ji-Horng Plastic Co., Ltd. All rights reserved. Beverage bottles are among the main plastic items that come for PET. 6I&dsV.G{w+Z#Ot>wY[~JKWr#oyOIIl(RV[U|i:n0qfB#}CNs,%|PEyeTeB 0000166558 00000 n +hSm)/BNy-G:ipb4m(5i9 18N 2Y9 E7q!#5qnc"w2T.Cz(k4l@Ar$.n(*piE1uh%UF?x]*t4\J4j1i,/7Mq$``'> In order to help you make better-informed decisions about the products that you buy, today we will go through the seven different types of plastic, how they differ, and their impact on the environment. Design & Manufacturability Copyright 2000 - 2023 United States Plastic Corporation. Method A is the more common test method used, and can be performed with sheet, rod, tube and molded pieces of plastic materials that are not affected by water. 0000169321 00000 n The information is provided by 0000124088 00000 n Mass Versus 0000157774 00000 n 0000124825 00000 n You can target the Engineering ToolBox by using AdWords Managed Placements. 0000154762 00000 n Polystyrene is the sixth type of plastic on the list and it can be solid or foamed. The specific gravity of a substance is a comparison of its density to that of water. General Fax: 860-963-1998, Understanding Your Data Sheet: Density & Specific Gravity, So youve narrowed down what material you need thanks to our. Heat Transfer Minerals and other Materials - Specific Gravities Specific gravities for minerals and other materials. From here density and SG are calculated using the following formulas: Specific Gravity = (Weight A / Weight B)Density = (Weight A / Weight B) * 0.9976 g/cm3 , where 0.9976 g/cm3 is equal to the density of distilled water at 23C. ASTM D792 Web800.789.1718. Animals do not recognize it as artificial and may mistake it for food causing serious effects on the health of birds or marine animals that might swallow it. Polystyrene 1.05 Specific Gravity Our network of more than 1,000 laboratories and offices in more than 100 countries, delivers innovative and bespoke Assurance, Testing, Inspection and Certification solutions for our customers' operations and supply chains. Though some manufacturers use grams per cubic centimeter to indicate the weight of their products, others merely provide the specific gravity of their material. Thermodynamics Directory | Heat Transfer Directory, Specific Gravity Table Chart and Equation. 0000006688 00000 n Hardware, Imperial, Inch Physicists use 39.2 F (4 C) as the standard, but engineers ordinarily use 60 F. In the International System of Units (SI Units), the density of water is 1.00 g/cm3 at the standard temperature. Contrary to HDPE, LDPE is characterized by low-density molecules, giving this resin a thinner and more flexible design.