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Flanged joints for Ductile Iron pipe and fittings are rated for 250 psi working pressure. However, in accordance with ANSI/AWWA C111/A21.11, 24-inch and smaller flanged joints with Ductile Iron flanges may be rated for a maximum working pressure of 350 psi with the use of special gaskets. Flanged piping systems should be installed in accordance ...


Ductile Cast Iron Rolls, Alloy Nodular Iron Rolls, Cast Rolls Applications: Roughing and intermediate stands of various continuous rolling mill, finishing stands of bar mill, section mill, finishing stands and back up rolls of strip mills, slao suitable for stainless-steel strip hot mills.


Ductile Iron Castings Market Segmentation. This section of the report provides important information on various types of products and service variants available in the Ductile Iron Castings market, as well as the scope of their futuristic developments and the associated ability to …


Roll over image to zoom. Product Image Feedback. GRUVLOK. Rigid Coupling: Ductile Iron, 10 in x 10 in Pipe Size, Grooved, Class 150 Item # 60XP10; Mfr. Model # 0390013589 UNSPSC # 0 Catalog Page # N/A Country of Origin USA. Country of Origin is subject to change. ...


Ductile Iron Roll Persisting in "High quality, Prompt Delivery, Competitive Price", we have established long-term cooperation with clients from both overseas and domestically and get new and old clients' high comments for Ductile Iron Roll, Tmt Rolling Mill Machinery, Deformed Bar Production Line, Rolling Mill Stand, Wire Rod Hot Rolling Mill .


"ductile iron pipe" ; ; "ductile iron pipe fittings" "ductile iron roll" ; "of cast ductile iron" "pig iron for ductile cast iron"


The invention relates to an overlaying welding technology of an iron casting, in particular to an overlaying welding technology of a ductile cast iron roller. The technology comprises the following steps: (1), post-welding preparation: a, detecting cracks; b, controlling a welding material; and c, selecting a welding beveling; (2), welding: a, preheating the beveling within a range of 120mm to ...


Alloy Ductile Iron Roll. The alloy ductile cast iron roll is made of acicular nodular cast iron mixing with nickel, chromium, molybdenum. It can be used in various blanking rolling mills for section steel, bar, wire rod and narrow strip, roughing mills, work roll for …


About the Ductile Iron Pipe Research Association (DIPRA) From its inception more than 100 years ago, the Ductile Iron Pipe Research Association (DIPRA) has provided accurate, reliable, and essential engineering information about cast iron — and now Ductile Iron — pipe to a wide variety of utilities and consulting engineers.


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Ductile iron, an alloy of iron and carbon, is a special type of cast iron having properties comparable to steel. Due to its unique microstructure, ductile iron exhibits high strength, durability, flexibility, and elasticity. ... ASTM A476 covers Ductile Iron Castings for Paper Mill Dryer Rolls;


S.G. Iron (Nodular) or Ductile Iron Rolls are available in a wide range of hardness & composition for a variety of application. The matrix structure varies from Ferrito-Pearlitic, Pearlitic to Bainitic & Martensitic together with different carbide contents and graphite in the form of spheroids/nodules. Some critical grades are heat treated for ...


Ductile Iron Standard Specifi cations Characteristics Applications † ASTM A395 & ASME SA395: ferritic ductile iron pressure-retaining castings for use at elevated temperatures † ASTM A439: austenitic ductile iron castings † ASTM A476 & ASME SA476: ductile iron castings for paper mill dryer rolls † ASTM A536 & SAE J434: ductile iron ...


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Nodular Iron Rolls - Metals

hese static-cast ductile rolls are structurally characterized by nodular graphite. Nodular graphite gives these rolls great tensile strength, enabling them to withstand heavy loads. Ductile rolls are structurally made up of cementite, matrix, and nodular graphite. Increasing roll hardness through the addition of Ni, Cr, etc., or minimizing


Indefinite Chilled Iron Nodular Iron Special Cast Steel ndefinite chilled iron rolls are cast high-nickel grain rolls with fine deposits of graphite on the surface. The hardness of these rolls can be changed by adjusting the chemical composition or by changing the casting method, making it possible to adapt the roll hardness to particular ...


A: Ductile Iron push-on and mechanical joints are covered in ANSI/AWWA C111/A21.11 "Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings." Section 4.2.2 of that standard states: "The mechanical and push-on joints shall have the same pressure rating as the pipe or fitting of which they are a part."


Backflow Valves. Atmospheric Vacuum Breaker; Double Check Assembly; Dual Check Valves; Hose Bib Vacuum Breaker; Pressure Vacuum Breaker; Reduced Pressure Assembly


Bainitic Nodular Cast Iron Roll. Bainitic nodular cast iron roll is made of Ni, Mn, CrH, Mo, etc. It has an acicular structure and would be higher strength and better toughness than pearlite iron. Due to the high alloy content and high casting stress, the acicular bainite ductile iron roll …


Bainitic Nodular Cast Iron Roll. Bainitic nodular cast iron roll is made of Ni, Mn, CrH, Mo, etc. It has an acicular structure and would be higher strength and better toughness than pearlite iron. Due to the high alloy content and high casting stress, the acicular bainite ductile iron roll can obtain the ideal comprehensive performance by a centrifugal composite casting process.


Metallic Zinc Coating for Ductile Iron Pipe. V-Bio Polyethylene Encasement. Polyethylene Encasement for Ductile Iron Pipe. Protecto 401 Lined Pipe and Fittings. Glass Lining (Porcelain Enamel) Fusion Bonded Epoxy (206N) Fusion Bond Epoxy 134. International (Spanish / Metric) TYTON JOINT.


The roll material was ductile iron with the mi crostructure consisting of fine pear litic matrix with primary carbides, spheroidal graphite. The barrel surface hardness was …


S.G Iron (Nodular) or Ductile Iron rolls are available in a wide range of hardness & composition for a variety of applications. INDEFINITE CHILL ALLOY CAST IRON These are cast iron based rolls alloyed with Nickel, Chromium and Molybdenum.


A wide variety of cast iron pipe roll options are available to you, such as 1 year. You can also choose from new cast iron pipe roll, as well as from pvc cast iron pipe roll, and whether cast iron pipe roll is moulding, or cutting. There are 1,096 suppliers who sells cast iron pipe roll …


Sand castings in ductile/gray iron, and stainless/high-alloy steels, from 500 pounds to over 110 tons finish weights -- from rough to finish machined. Double-poured cast work rolls and backup rolls for steel and aluminum rolling mills -- both hot and cold rolling.


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The MarketWatch News Department was not involved in the creation of this content. Oct 26, 2021 (CDN Newswire via Comtex) -- Global Ductile Continuous Cast Iron …


Ductile Iron is a type of cast iron known for its impact and fatigue resistance, elongation, and wear resistance due to the spherical (round) graphite structures in the metal. Ductile Iron is also called ductile cast iron, spheroidal graphite cast iron, or nodular cast iron.


Therefore, the Si content in ductile iron with low temperature impact performance requirements is generally controlled at 1.6-2.0%. 4.1.2 Reduce the cooling rate of castings along with the mold. For a certain composition of ductile iron, changing the cooling rate of the eutectic stage can change its matrix structure in a larger range.


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1. Scope. This specification covers ductile iron castings for use in pressure containing paper mill dryer rolls ate temperatures up to 450 Fahrenheit degree (230 Celsius degree). 2. Heat treatment. The castings may be stress relieved at a temperature not to exceed 1200 …


180 AWWA Ductile Iron Series The Shurjoint Model A507 Transition Coupling provides for a direct connection between grooved end IPS steel pipe and grooved end AWWA ductile iron pipe, fittings and or valves. The A507 will accommodate roll or cut grooved IPS steel pipe and rigid or flexible AWWA ductile iron cut grooves.