specific gravity of plastics chart

Water's weight is one gram per cubic centimeter - a material with, for example, 1.5 specific density would then weigh 1.5 grams per cubic centimeter. Since then, after undergoing some minor variations, the RIC has been recognized as the worldwide standard plastic classification. 6, Sec. 0000173123 00000 n 0000165724 00000 n With superior resistance to discoloration, impact, and chemicals, acrylic plexiglass sheet is ideal for any application. Gears Design Engineering Specific Gravity 0000156682 00000 n 0000005093 00000 n Polycarbonates are commonly used for eye protection in the creation of lenses for sunglasses, sport and safety goggles. WebSpecific Gravity Information. 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. Specific Gravity (SG) is defined as the ratio of +74|=8/[ dcepJ@@ Q endstream endobj 8 0 obj<> endobj 10 0 obj<> endobj 11 0 obj<>/Font<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>> endobj 12 0 obj[278 750 474 750 750 750 750 238 750 750 750 750 278 750 278 278 556 556 556 556 556 750 750 750 556 750 750 750 750 750 750 611 750 722 750 722 722 667 611 778 722 278 750 750 750 750 722 778 667 750 722 667 611 750 667 944 750 667 750 750 750 750 750 750 750 556 611 556 750 556 333 611 750 278 750 750 278 750 611 611 611 750 389 556 333 611 556 750 556 556] endobj 13 0 obj<> endobj 14 0 obj<> endobj 15 0 obj<> endobj 16 0 obj<> endobj 17 0 obj<> endobj 18 0 obj[/ICCBased 39 0 R] endobj 19 0 obj[278 750 355 750 750 750 750 191 333 333 389 750 278 333 278 278 556 556 556 556 556 556 556 556 556 556 278 750 750 584 750 556 750 667 667 722 722 667 611 750 722 278 750 667 556 833 722 778 667 750 722 667 611 722 667 944 750 750 750 750 750 750 750 750 750 556 556 500 556 556 278 556 556 222 222 500 222 833 556 556 556 556 333 500 278 556 500 722 500 500] endobj 20 0 obj<> endobj 21 0 obj<> endobj 22 0 obj[278 750 750 750 750 750 750 750 333 333 750 750 750 750 278 278 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 722 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 556 750 500 556 556 278 556 556 222 750 750 222 833 556 556 556 750 333 500 278 556 500 750 750 500] endobj 23 0 obj[250 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 500 500 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 667 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 722 778 778 778 778 778 778 778 444 500 444 500 444 778 778 778 278 778 778 278 778 500 500 778 778 333 389 278 778 500] endobj 24 0 obj<> endobj 25 0 obj<> endobj 26 0 obj<>stream 0000161897 00000 n Thermodynamics Each one is different from the other and has different uses. 0000117718 00000 n All prices and offers subject to change. General Fax: 860-963-1998, Understanding Your Data Sheet: Density & Specific Gravity, So youve narrowed down what material you need thanks to our. HDPE 0.96-0.97 Polysulphone 1.24 Some manufacturers may consider testing and certification an obstacle to overcome to get to market. 0000147303 00000 n Mechanical Tolerances Specs Beam Deflections and Stress 0000015048 00000 n 0000145640 00000 n or in connection with, the use of this information. 0000157774 00000 n 0000016671 00000 n 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. So youve narrowed down what material you need thanks to our Learn More About your Plastic Sheet series - now its time to download a data sheet and take a look at the performance attributes of our materials. 0000002775 00000 n A Specific Gravity of less than 1 means that the 0000006910 00000 n Put theplastic specific gravityin perspective! So, keep reading! Structural Shapes 0000003888 00000 n Second, polystyrene foam blows in the wind and floats on water, due to its low specific gravity. However, various factors can affect density such as crystallinity, loss of plasticizer or absorption of solvent. PVC 1.37-1.39 0000131261 00000 n 0000153750 00000 n WebDensity of Plastics Material: Technical Properties Table. 0000015222 00000 n 0000050964 00000 n Polyethylene terephtalate 1.34-1.39 Technical name - High-Density Polyethylene its an incredible resistant resin used for grocery bags, milk jugs, recycling bins, agricultural pipe, but also playground equipment, lids, and shampoo bottles among others. 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. Density of Plastics: Technical Properties. Density measures the mass per unit volume. It is calculated by dividing the mass of the material by the volume and is normally expressed in g/cm 3. The density of a plastic sample may change due to change in crystallinity, loss of plasticizers, absorption of solvent, etc. 0000018128 00000 n PA-12 1.02 How about an incentive to share this post? dixonvalve.com. Cookies are only used in the browser to improve user experience. 0000137613 00000 n 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. Training Online Engineering. Polyethylene 0000125957 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). 0000159988 00000 n Design & Manufacturability With a smooth, matte finish, expanded PVC sheets provide the great surface for graphic overlays.

, Sign up for A&C Plastics Updates, Promotions. 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. The weight will appear in both metric and common US units. Engineering Mathematics 0000160831 00000 n Not all plastic is born equal. The standard test method for the determination of density and specific gravity Lubrication Data Apps 0000151915 00000 n 0000004768 00000 n Ethylene-propylene 0.86 Polybutene 0.91-0.92 %PDF-1.4 % Therefore, the specific gravity is a unitless number. Machine Design Apps This may also be referred to as relative density. 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' 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. the molded piece as compared to the weight of an equal volume of water 0000149962 00000 n SPECIFIC GRAVITY- The ratio of the weight of Finishing and Plating 0000124825 00000 n Gravity: Viscosity CPS 1 gallon of water weighs 8.33 lbs. For PS the melt density is 0.945 g/cm 3 and for PP it is about 0.74 g/cm 3. ~P2p@0$:+mbsuz! 0000158889 00000 n Specific GravityDensity and specific gravity sound quite similar, some even say that they are synonyms; however, they are actually not the same, below we are going to introduce the differences of them.What's the meaning of "Density"?Density ismass or weight of a substance per unit volumeundernormal temperature and pressure. 0000177508 00000 n Density in plastics is the measurement of mass per unit volume. 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. Manufacturing Processes Roto-molded LLDPE with thick walls for superior strength anddurability. 0000176664 00000 n Plastics Synthetics 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. Health effects vary depending on the resin and plasticizers in this plastic that often 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. Electronics Instrumentation 0000005504 00000 n 0000151051 00000 n Therefore, the specific gravity (which is dimensionless) for a liquid has the same numerical value as its density in units of g/cm3. Styrene-butadiene 0.93 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. 0000139528 00000 n Ultimate tensile strength is the maximum stress the thermoplastic material can withstand before failing, whichever occurs at the higher stress level. 0000148052 00000 n I'm Gelson Luz, mechanical engineer, welding specialist and passionate about: I am building this blog to be the best learning blog about engineering! This may also be referred to as relative density. PA-66 1.13-1.15 This test is often seen with the designation ASTM D792. 0000166558 00000 n If plastic cannot be identified in the six types above-mentioned, then it will be included in group number 7. 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. ASTM D792 Electric Motor Alternators AddThis use cookies for handling links to social media. Because of this difference, when comparing polypropylene sheet to PET sheet, holding constant gauge and size, customers can see approximately a 30% density reduction from PET to PP and an increased yield on pounds purchased. 0000169321 00000 n 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! The best-known plastics of this group are polycarbonates(PC) used to build strong,toughproducts. Specific Gravity means specific value of an object under normal temperature and pressure. 0000142018 00000 n 1, Zhongshan Rd., Dacun Township, Changhua County 515, Taiwan (R.O.C. or damage, or any loss or damage whatsoever arising from loss of materials, time or profits arising out of, Materials and Specifications 0000173991 00000 n "Density" has its own unit of measurement, 1 g/cm3 or 1 kg/m3, in contrast, specific gravity has no unit of measurement goes with it; nevertheless, although they don't have the same meaning, they have the same value because density of water is quite close to 1g/cm3. 0000138434 00000 n WebSince the density of a fluid varies with temperature, specific gravities must be determined and specified at particular temperatures. POM 1.41-1.43 Section Properties Apps Learn More, Formally confirming that your products and services meet all trusted external and internal standards. Web800.789.1718. Learn more about our materials and get in touch withour sales team today! Hi! 0000006688 00000 n 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. Fluids Flow Engineering 6I&dsV.G{w+Z#Ot>wY[~JKWr#oyOIIl(RV[U|i:n0qfB#}CNs,%|PEyeTeB 0000155825 00000 n WebSpecific gravity is the ratio of the density of a substance to the density of the same volume of water. One of the ASTM test methods for plastic commonly seen on data sheets is the test for Density and Specific Gravity (SG). In the next blog post, we will explain which of these plastic types can be recycled and which not, so stick around! 0000005946 00000 n in various applications. 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. Our Polycarbonate sheet offers a levelof safety that no other clear glazing material can match. 2023, by Engineers Edge, LLC www.engineersedge.com Polycarbonate 1.2 Polyamide Learn More, Validating the specifications, value and safety of your raw materials, products and assets. warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with Therefore, for the same 1cm volume, the melted plastic weighs less than the solid plastic (0.933 g/cm vs. 1.054 g/cm). ), Plastic Material: Density & Specific Gravity. Also, it is relatively hard and resistant to impact and can be subjected to temperatures of up to 120 C without being affected. It is 250 times stronger and just as clear as glass. Now we need a minimum of 6.16 x 1.28 or 7.88 oz of shot capacity. Specific gravity is the ratio of the object's density to the density of water, i.e. 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. Polymethylpentene 0.83 Viscosity Chart. 0000004265 00000 n When mixed with other substances, It can be made softer and more flexible and applied to plumbing, wiring, and electrical cable insulation and flooring. 3t6/8lM2-lA Available in a range of sizes these trays have many industrial uses. All rights reservedDisclaimer | 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. Plastics have a really wide specific gravity range depending on its composition. Specific gravity (S.G.) is a measure of the relative density of a substance as compared to the density of water at a standard temperature. Web1 28768 DENSITY OF PLASTICS What is Density of plastic: The density of a substances is generally known as mass per unit volume. Typical properties of some common thermoplastics: For full table with Thermal Conductivity, Specific Heat and Maximum Temperature Limit - rotate the screen! 0000163869 00000 n Minerals and other Materials - Specific Gravities Specific gravities for minerals and other materials. Environmentally-speaking its among the worst types of plastic: first, it is regarded as notbiodegradable. Tensile yield strength is the maximum engineering stress in psi (or Pa) at which a permanent non-elastic deformation of the thermoplastic material begins. resistant to a variety of bases and acids, some solvents and chlorinated hydrocarbons may damage the material, common as DEV - Drainage, Waste and Vent - pipes, only compression and banded type joints used. 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). 0000012608 00000 n Heat Transfer 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. 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.

Expanded PVC sheet plastic is the ideal material where durable construction materials are needed. Natural rubber 0.91 0000125208 00000 n 0000124314 00000 n In fact, PET bottles arethe most widelyrecycled plasticin the world! This website uses cookies to collect necessary user browsing behaviors so that we can provide you with a better browsing experience. Plastics that belong to group number one are made out ofpolyethylene terephthalate or PET. WebDensity of Plastics Density is calculated by dividing the mass of the material by the volume and is normally expressed in g/cm3. 0000162752 00000 n Join our movement of Global Change Agents to receive exclusive invitations and updates. Hydraulics Pneumatics We don't collect information from our users. In fact, not only can plastic be found in a variety of different shapes and colors, but also in many different types. : The units cancel out in the ratio. 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. The purpose was to provide a consistent national system to facilitate recycling of post-consumer plastics."