Ductile iron pipe k type joint or mechanical joint accessory. Ductile iron pipe and fittings saintgobain pam international. Conventional ductile iron contains a mix of pearlite and ferrite in the matrix surrounding the nodules. To promote the production and application of ductile iron.
Ductile iron pipelines are described by characteristics such as jointing, external finish and internal finish. Ductile iron tee pipe solidworks 2017 configurations 2 to 48 the computeraided design cad files and all associated content posted to this website are created, uploaded, managed and. Processes and properties with conversion to ductile iron, pressure pipe production became an even more specialized process. The high temperature corrosion of two ductile cast irons simo and niresist alloys in synthetic diesel and gasoline exhaust gases has also previously been reported 14. Various soil characteristics were investigated to determine their impact on the geometric properties of the corrosion pits. With more than five decades of outstanding field experience, ductile iron pipe is widely recognized as the industry standard for modern water and wastewater systems. The perfect ductile iron pipe for robust and flexible water distribution networks in all situations. Ductile iron castings manufacturer ductile iron foundry usa. Independent lab verification that fittings meet applicable chemical and physical properties. The pipe on supports calculator provides the designer with a way to determine support dimensions and the class of pipe needed to control beam deflection, beam. The software features five analytical tools that can be utilised throughout the planning. In 1989 ebaa iron embarked on a soil study to determine actual soil properties on ductile iron, ductile iron wrapped with polyethylene, and pvc pipe surfaces.
Tensile and yield strengths vary widely with different microstructures. The real life expectancy of cast iron pipe is unknown, but is usually estimated at 100 years or more. Ductile iron pipes normally possess thicker pipe walls and are generally stiffer than steel pipes. Astm international iron and steel products standards.
One of the most important reasons for the success of ductile iron pipe is that, like gray iron pipe before it, it is the subject of the most extensive series of product standards in the pipe industry. Operating pressure ductile iron performance saintgobain pam uk. Ductile iron tee pipe solidworks 2017 3d cad model. Numerous pipe tables are included in the default installation of the programs, and. This is calculated in a similar way as the flexible steel pipes described in that section of the site.
Pipe is the recognized leader in highly engineered pipe products for water and wastewater systems. Nodule count, expressed as the number of graphite nodulesmm 2, also influences the mechanical properties of ductile iron, although not as strongly and directly as graphite shape. This mode of solidification is obtained by adding a very small but specific amount of magnesium to. About the part catalog and parts lists for pipe networks. These properties are further enhanced by control of the chemical analysis and heat treatment of the metal matrix. Ductile iron pipes, fittings, accessories and their joints for water or gas applications. The respective software to be used with ms windows 95 complete with.
Having the material property available for parts enables you to use labeling features to add text to identify the type of material used for the pipe. In ductile irons, graphite is in the form of nodules rather than flakes as in grey iron. Comparison of the mechanical properties of steel and ductile. The combination of the conservative, thrust restraint equations and updated soil information is provided in the design handbooks and computer software available from ebaa free of. It is illegal to install products that are not lead free in accordance with us federal or other. Miyajima abstract this study proposes a method for designing a water pipeline system against fault displacements by using earthquake resistant ductile iron pipe.
Ductile irons corrosion resistance is superior to unalloyed steel, and even highly alloyed steels in certain environments. Typically the piping is going to have something on the end of it all the time, even if its just a blind flange. The autocad civil 3d part catalog contains definitions for all the pipe network parts that you can insert into a drawing. The graphite and carbon contained in cast iron occur as flakes. Hence, it is not necessary to achieve highlycompacted soils for ductile iron pipes for sustaining external loads. Ovalisation in ductile iron pipe design pipe ring deflection. Submittal buttons and cover page entry will be displayed once an item has been selected. The common defining characteristic of this group of materials is the shape of the graphite. American ductile iron pipe promotes the use of ductile iron pipe for several trenchless technology installation methods, including pipe bursting and horizontal directional drilling hdd. Ductile iron is not a single material but part of a group of materials which can be produced with a wide range of properties through control of their microstructure. Comprised of ductile iron and fabrication, our comprehensive selection. The pipe shall be provided with suitable joints, such as pushon or other types of joints that prevent lateral displacement, but plainend pipe for use with suitable couplings may be furnished. Continuous testing and field experience have brought the production and use of ductile iron pipe to maturity. Subsequently, a method is proposed to assess the condition of a ductile iron pipe, based on the geometry of corrosion pits of several samples extracted along the pipe.
One of the most important reasons for the success of ductile iron pipe is that, like gray iron pipe before it, it is the subject of the most extensive series of. Hydraulic flow characteristics are not altered by pressure increases or decreases. Australia opted for a soft conversion from imperial units to metric, published as asnsz 2280, with the physical outer. We sale and export ductile iron pipes, all kinds of joints from china.
Comparison of ductile iron vs steel penticton foundry. Tyton joint ductile iron pipe and restrained joint ductile iron pipe. Ductile iron pipe roughness posted in industrial professionals. This is justified by the need to withstand the numerous stresses on the pipelines during installation, but also and above all, over the years pipeline design calculation. Ductile iron pipes and fittings bim object definition from nbs. Which one is better, ductile iron pipes and mild steel. Emj sells durabar brand 654512 ductile iron, which is good for making electromagnets. The nominal bore of ductile iron pipe is the minimum bore you can expect for a given size.
Ductile iron, also referred to as nodular iron or spheroidal graphite iron, was patented in 1948. A century ago, dedicated american engineers installed iron pipe to create the countrys water systems. Ductile iron pipe is widely recognized as the industry standard for modern water and wastewater systems. More specificaly, id be grateful to know the value from ductile iron pipe roughness in case of a new pipe and, lets say, 10 years old. Well take a look at tensile strength, ability to absorb shock, weldability, abrasion. Ductile iron owes its remarkable mechanical properties to the spheroidal shape of its graphite. Hydraulic flow characteristics are not altered by pressure increases or decreases an increase in working pressure. One of the most important reasons for the success of ductile iron pipe is that, like gray iron pipe before it, it is the subject of the most. In fact, these cast irons are characterized both by a high castability and by high toughness values, combining cast irons and steel good properties. Impact resistance ductile irons impact properties are microstructure dependant. Although 1 m of ductile iron pipe is more expensive.
Anyway, im interested to find a roughness database from main piping materials. Ductile iron is made using a combination of many strong metals like carbon, silicon, magnesium, phosphorous, sulphur, iron and copper etc. This mix, depending on different cooling rates throughout the casting, can cause large ranges in mechanical properties like hardness. What is the difference between ductile iron pipes and. The awwa standards committee a21 on ductile and gray iron pipe and fittings was. Ductile iron pipe due to the use of socket connection, and the general use of welded steel pipe, and both pipe diameter and diameter are inconsistent, so the need for special methods for connection. Ductile iron pipe size dips and dimension data pe4710. Operating pressure ductile iron performance saintgobain. When i create a new pipe network, and select ductile iron pipe from the catalogue, and draw in my network.
The purpose of this standard is to provide the minimum requirements for polyethylene sheet and tubes to be used for external corrosion protection of buried ductileiron pipe, fittings, and appurtenances. Ductile iron castings manufacturer ductile iron foundry. The standard design considers hoop stresses in the pipe wall due to internal hydrostatic pressure as well as bending stresses and deflection in the pipe due to external loads of earth and traffic above the. Moreover, it requires only simple jointing details which allows for a faster rate of construction. The dimensions and the drilling of the flanges shall be in accordance with the. The company is responsible for the development of bellless mt push pipe and gs push pipe used for pipe bursting, microtunneling, or sliplining. Ductile iron pipe is pipe made of ductile cast iron commonly used for potable water. Ductile iron has greater strength and ductility than gray iron. The graph bars on the material properties cards further below compare ductile cast iron to. This is justified by the need to withstand the numerous stresses on the pipelines during installation, but also and above all, over the years. The ductile irons discovery in 1948 gave a new lease on life to the cast iron family. Ductile iron pipes have been used in north america since the late 1950s. During testing of the force main, gwt examinations were conducted inside eight different excavations to screen approximately 319 total feet of pipe. Pressure class ductile iron pipe in type 5 trench is illustrated.
Pipe roughness coefficients table charts hazenwilliams. As weve already compared ductile iron castings to gray iron castings we thought wed compare ductile iron and cast steel across a variety of properties to help determine which alloy is better for a given application. Designed and manufactured to the industrys most stringent standards, ductile iron pipe resists damage during shipping and handling, and, once installed, withstands the most demanding operating conditions, including water hammer, frozen ground, deep trenches. Cast iron and ductile iron have contrasting physical properties caused by differences in their microstructures. Standard wall thickness and weight values of pushon joint pipe are given. D iron mj american ductile iron pipe standard pressure classes. Installation guide for ductile iron pipe mcwane ductile. The strength, durability, and long service life of ductile iron pipe s predecessor, gray cast iron pipe, are widely recognized. This strong, safe, and reliable product has stood the test of time. Any material printed or downloaded by you from this site, including, without limitation, any text, files, images, software, and data accompanying the foregoing is licensed to you by u. The following table has been compiled to assist with the selection of the ideal grade of cast iron for your castings. Pipe table listing engineered software knowledge base. Corrosion resistant, for longevity in water and sewage systems, and machinable, for ease in field modifications, ductile iron pipe surpasses its competitors in terms of durability, strength and ductility and is lighter and more costeffective than cast iron.
Classification of ductile cast iron specimens based on. Condition assessment of a ductile iron force main using. Ductile irons corrosion resistance can be improved by understanding the corrosion mechanism and alloying the material appropriately. Research of earthquake resistant ductile iron pipe erdip. Printing or downloading the material does not transfer title to the material, or any intellectual property rights therein, to you and all rights not. Weights published in this catalog are for shipping. This program is based on the equations and procedures found in the dipra brochure design of ductile iron pipe on supports. Conservative assumptions, along with an explicit safety factor, have been employed to assure a conservative design with an adequate overall safety factor.
Pipe dimensions are standardised to the mutually incompatible awwa c151 u. Pipe has supplied the critical components to ensure our nations water and sewer infrastructure is built to last. Miyajima abstract this study proposes a method for designing a water pipeline system against fault displacements by using earthquake resistant ductile iron pipe erdip. Cl52 ductile iron fastite double cement lined pipe 4006535 at ferguson. Previous works 1, 2 on ductile cast iron showed that the main factors affecting the mechanical properties are metallurgical structures. Im the newest member and im a learner of these engineering forums. Pipes, pipe fittings, pipe couplings, spheroidalgraphite castiron, castiron pipelines, sewers, manholes, sewerage, drainpipes, drainage, dimensions, size, colour codes, temperature, pressure, performance, mechanical properties of materials, marking, coatings, dimensional measurement, tensile testing, bend testing, pressure testing, chemicalresistance tests, wear tests, effluents sewage. Tempered ductile iron has excellent mechanical properties such as tempering reduces the strength and hardness and increases the. This mode of solidification is obtained by adding a very small but specific amount of magnesium to molten iron. Comparison of mechanical properties of gray and ductile. American also subscribes to nsfs listing program for products under. Pam pipelines are designed to withstand high pressures, generally much greater than the values usually encountered in the networks. Those producers who resisted ductile iron were eventually closed or purchased.
Physical properties of ductile iron and alternative materials. Comparison of physical properties of gray and ductile iron. Ductile iron pipes, fittings wholesaler, exporter, supplier. For example when i measure a 90deg short radius bend in mep global ductile iron pipe and fittings for a. Invented in 1943, ductile iron is a modern iteration of cast iron. Reexamination of traditional conventions yehuda kleiner, balvant rajani and dennis krys national research council of canada, institute for research in construction. In january 2017, cape g retained the services of pure technologies to field verify and further assess the condition of the riverfront force main, a threemile pipeline comprised of 20 and 24inch ductile iron pipe dip, with a few replacement sections of hdpe. Saintgobain pam leader of comprehensive ductile iron pipe and fittings for water and sewage networks. The properties of ductile cast iron include nine common variations. Ductile iron pipe, a product of advanced metallurgy, offers unique properties for conveying water under pressure, and other piping uses. Materials used in the production of pipes and fittings, have to be ductile, flexible and resistant to impacts in order to minimize the effect of these movements on networks. Select the pdfs you want to add to your submittal package from the list below, or click each link for individual pdfs.
A37718 standard index of specifications for ductile iron pressure pipe a380a380m17 standard practice for cleaning, descaling, and passivation of stainless steel parts, equipment, and systems a381a381m18 standard specification for metalarcwelded carbon or highstrength lowalloy steel pipe for use with highpressure transmission systems. For watermain pipe size less than 600mm, ductile iron is normally used because internal welding for steel pipes below 600mm is difficult to be carried out. To add a material property to a part in part builder. For example, you can configure the material property to display text such as pvc, ductile iron, or corrugated steel. As the name suggests they are more ductile than most cast irons and have similar properties to grey irons i. This versatile platform provides value across multiple disciplines, industries and during all stages in the lifetime of a fluid piping system. Research of earthquake resistant ductile iron pipe erdip for fault crossing k. Ductile cast iron spun 1960s why choose ductile iron pipes. In a previous research report stefanescu et al, in print, the static mechanical properties of horizontalplates thin ductile iron castings 1. The oldest operating cast iron main is that at versailles, france, installed in 1664. Ductile iron archives pure technologies pure technologies. D the first design check is on the ovalisation or deflection of the ductile iron pipe ring under load.
As such, it replies less on side fill soils to support external loads. Ductile iron pipe internal bore is always greater than nominal diameter. This paper discusses the challenges associated with implementing the inspection plan and the results of the inspections including those obtained by using the gwt on the ductile iron pipe. Ductile cast iron behaves elastically over a considerable stress range in both tension and compression. Through knowledge gained by our dedicated research centre in areas such as soil corrosion phenomena, our ductile iron pipelines have the latest coating technologies and often exceed minimum industry standards. Ductile iron pipe natural andor manmade ground movements, is the main reason for water supply damages. This iron has combined properties of grey iron and malleable iron which makes it one of the strongest forms of iron in the world. It is organized at the top level into two basic domains one for pipe parts, such as cylindrical or rectangular pipes, and another for structure parts, such as. Fonderie saguenay are a jobbing shop specializing in producing components in materials such as gray iron and ductile iron. Design of ductile iron pipe on supports d esign procedures for ductile iron pipe in normal underground service have been well established. An example use may be within a fire hydrant system.
This standard also may be used for polyethylene encasement of fittings, valves, and other appurtenances to ductileiron pipe systems. The pipes are labeled as ductile iron, but when you go to the pipe properties or look at the structures they connect to, they are reinforced concrete, thus i have to change them each, one at. Manufacturing process of ductile pipes by the process of. Comparison of hdpe and ductile iron pipes for drinking water supply networks in future smart cities through lca and lcc. Which one is better, ductile iron pipes and mild steel pipes. Fluid flow table of contents hydraulic and pneumatic knowledge fluid power equipment. Ductile iron pipe roughness industrial professionals. Generally, high nodule count indicates good metallurgical quality, but there is an optimum range of nodule count for each section size of casting, and nodule counts. Mechanical and structural properties of ductile cast iron.
Cast iron deterioration with time in various aqueous salt solutions has also been studied 15. National standard for the thickness design of ductile iron pipe ansiawwa c150a21. Jerry regula, national product engineer, mcwane ductile. Standard specification for ductile iron culvert pipe.
Cast iron pipe has long been the standard material for conveying water and sewage in municipal, utility and industrial piping systems. Is there s different standard for di pipe fittings in the us than in the ukeu. Pdf static mechanical properties of ferritic and pearlitic. After a decade of intensive development work in the 1950s, ductile iron had a phenomenal ninefold increase in use as an engineering material during the 1960s, and the rapid increase in commercial. Comparison of the mechanical properties of steel and ductile iron pipe materials brent keil1, jack devletian2 abstract water infrastructure engineers commonly evaluate a variety of pipe materials to determine the most appropriate solution for a particular application. Ductile iron pipe, corrosion pits, soil properties, corrosion pit. For more specific values, follow the links immediately below. The first official record of cast iron pipe installation was in 1455 in siegerland, germany. Ductile iron pipe in the developed world is normally manufactured exclusively from recycled material including scrap steel and recycled iron. Those properties allow it to be used effectively in a wide variety of industrial applications, including pipe, automotive components, wheels, gear boxes, pump housings, machine frames for the windpower industry, and many more. Comparison of physical properties if cast iron with steel castings. Effect of tempering temperature and time on strength and. Those properties allow it to be used effectively in a wide variety of industrial applications, including pipe, automotive components, wheels, gear boxes, pump housings, machine. Ductile iron is a development of an earlier cast iron pipe that has superseded due to its many advantages as follows, ductile iron has excellent mechanical properties under the influence of forces, such as high resistance to tensile stresses and high impacts.1472 693 26 870 100 131 917 1194 409 1126 441 313 761 558 854 666 313 1009 1375 398 1122 15 1008 916 869 1396 599 1059 757 1061 862 628 1266 87 836 365 785 1244 1454 1185 546 1352 699