high silicon molybdenum ductile iron

Ductile Iron Data - Section 5

High silicon-molybdenum Ductile Irons can be produced successfully by any competent Ductile Iron foundry that has good process control, provided that the following precautions are taken. Carbon levels should be kept in the range 2.5-3.4%. Carbon content should be reduced as the silicon level and section size increase.

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CN104195418A - High-silicon-molybdenum ductile iron material ...

According to the high-silicon-molybdenum ductile material, the tensile strength is not less than 710MPa, the yield strength is not less than 500MPa, the elongation is not less than 10% and the...

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High Silicon Molybdenum Ductile Iron - Image Results

More High Silicon Molybdenum Ductile Iron images

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High Silicon Molybdenum - bascastings.co.uk

High Silicon Molybdenum is also referred to as SiMo Ductile Iron and High Silicon Moly. This material is a variation SG Iron that offers superior heat resisting characteristics. High Silicon Molybdenum is typically the choice of engineers for such applications as turbochargers, manifold castings and any high temperature application where resistance to service temperatures of up to 820 degrees C is present.

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Malleable Iron and High Silicon Moly Castings

High Silicon Molybdenum is also referred to as SiMo Ductile Iron and High Silicon Moly. This material offers superior heat resisting characteristics.

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Standard Specification for High-Silicon Molybdenum Ferritic ...

Scope. 1.1 This specification covers castings made of high-silicon molybdenum ferritic iron, commonly known as SiMo. This specification includes castings with microstructures of spheroidal graphite (SG) SiMo iron, compacted graphite (CG) SiMo iron, and mixed graphite or medium-nodularity graphite (MG) SiMo iron. MG iron microstructure comprises a mixture of spheroidal and compacted graphite shapes.

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Molybdenum grade cast irons

There has been growing interest in the use of high silicon-molybdenum ductile irons with up to 4% Si and 1% Mo. Their good strength up to 600°C makes them a viable and cost effective replacement for more highly alloyed irons and steels in elevated temperature applications such as turbocharger housings, engine exhaust manifolds and furnace components.

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Typical Si Mo Ductile Iron Chemical Mechanical Properties for ...

By increasing the Silicon and Molybdenum content of Ductile Iron, the heat resistance and strength at high temperatures will be increased significantly. The following is the typical chemical composition: C=3.2-3.8%, Si=4.0-5.0%, S < 0.02%, Mg=0.03-0.07%, Mo=0.5-1.5%

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Sec. 7 Introduction - Ductile Iron Society

Silicon also exerts a strong influence on the response of Ductile Iron to heat treatment. The higher the silicon content, the lower the solubility of carbon in austenite and the more readily carbon is precipitated as graphite during slow cooling to produce a ferritic matrix.

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High Silicon Cast Iron :: Total Materia Article

High silicon iron-based alloys are excellent corrosion resistant materials with advantages of superior corrosion resistant properties, low cost and saving on noble metals such as nickel and chromium. When containing 14.5% or more silicon, the corrosion resistance of these iron-based alloys is better than that of some cast irons containing a significant amount of chromium, nickel and/or molybdenum, and even than that of certain nickel based alloys in some severe corrosion conditions.

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Ductile Iron, High Silicon Molybdenum Castings

Austempered, high silicon molybdenum, high nickel, and heat-resistant ductile iron sand casting services with slim wall, complex geometry, and tight tolerance features. Offers automatic and manual resin and automatic green sand molding processes with up to 20.0 tons sizes. Available in rapid prototype and low to high-production volume.

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Hi-Sil Moly Ductile Iron Castings - Alloy Products

Feb 23, 2015 · Hi-Sil Moly Ductile Iron Castings is a Ductile Iron (DI) that stands for High Silicon with Molybdenum Ductile Iron. DI alloy composition is generally in the range of 4-6% Silicon and/or .4-.2% Molybdenum.

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Observation of Microstructure Change of High Silicon ...

In order to further understand the oxidation process of high silicon molybdenum ductile iron, the samples at the initial stage of oxidation shown in Figure 4A are selected for observation. The results are shown in Figure 4b-4d.

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High Si-Mo ductile iron: views from users and producers ...

Mar 01, 1998 · High silicon molybdenum ductile iron is fast becoming the auto industry's choice for construction of high-performance exhaust manifolds. Due to the EPA's increased emission control standards, the U.S. automotive sector requires exhaust manifolds that have strength at high temperatures, are resistant to oxidation and have low expansion during use.

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PCS - Products

All standard grades of Grey & Ductile Iron as per. High Silicon-Molybdenum Ductile Iron for High Temperature for Exhaust Manifolds. NiHard material for high wear and tear parts. Ductile Iron Castings with strong impact properties at Low Temperatures for Windmill Applications.

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Mechanical Properties and Impact Toughness of Molybdenum ...

Molybdenum serves as a carbide-stabilising element in ductile iron, while simultaneously promoting ferrite formation and is therefore regarded to be suitable alloying element. In Charpy impact tests, the ductile-to-brittle transition temperature could be reduced by about 55 °C by reducing the silicon content to 2.95 wt% and adding 0.21 wt ...

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High Silicon Cast Iron - Sulphuric Acid

Standard ductile cast irons contain approximately 1.8 to 2.8% silicon, while modified ductile cast irons such as Mondi™ contain 3.5% silicon. Silicon cast iron contains 14.20 to 14.75% silicon. Silicon cast iron has excellent resistance to sulphuric acid in all concentrations to 100% up to the atmospheric boiling point.

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ASTM A1095 - Standard Specification for High-Silicon ...

scope: This specification covers castings made of high-silicon molybdenum ferritic iron, commonly known as SiMo. This specification includes castings with microstructures of spheroidal graphite (SG) SiMo iron, compacted graphite (CG) SiMo iron, and mixed graphite or medium-nodularity graphite (MG) SiMo iron.

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SiMo Ductile Iron Crystallization Process

The article presents crystallization process of silicon molybdenum ductile cast iron (SiMo). The alloy with 5% silicon content and with variable amounts of Mo in a range of 0-1% was chosen for the research. The carbon content in the analysed alloys did not exceed 3,1%.

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Moose Forge

Although Ductile Iron and steel are superficially similar metallurgically, the high carbon and silicon levels in Ductile Iron result in important differences in their response to heat treatment. The higher carbon levels in Ductile Iron increase hardenability, permitting heavier sections to be heat treated with lower requirements for expensive ...

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Our Capabilities | Webster City, IA | Seneca Foundry

Gray Iron: CL30 CL35 CL40. Ductile Iron: 60-40-18 65-45-12 80-55-06 100-70-03. 120-90-02 Quench and temper. Austempered Ductile Iron (ADI): Grades I to V. High Silicon Molybdenum Ductile Iron: Several grades. Let us know if you have a special need for lost foam casting, 3D scanning, or more. Contact Seneca Foundry at [email protected]

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About Us - Nelcast Limited

High Silicon-Molybdenum Ductile Iron for High Temperature Exhaust Manifolds; All grades of Austempered Ductile Iron (In-house heat treatment facility) Solution Strengthened Ferritic grades of Ductile Iron; Ductile Iron Castings with strong impact properties at Low Temperatures for Railway Braking & Windmill Applications

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(PDF) Design and Solidification Simulation of Exhaust ...

The demand for more environment-friendly vehicles with increased fuel efficiency has expanded the need for specialized materials like SiMo Ductile cast iron (high silicon and molybdenum) in ...

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EFFECT OF ELEMENTS IN GRAY - Lobenhofer

When silicon becomes very high it hardens the ferrite and can increase the hardness of the iron. In ductile iron the impact transition temperature is affected by the silicon content. The impact transition temperature is the temperature at which ductile iron changes from being a ductile material to a brittle material.

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Welding-molybdenum with necessary precautions

Suitable for applications requiring high strength and rigidity at temperatures to 1650 °C (3000 °F) for use in vacuum, inert or reducing atmospheres. At elevated temperatures TZM is able to sustain for more than 100 hours up to three times the stress of unalloyed Molybdenum, a remarkable advantage for demanding applications.

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Welding-ductile-iron for increased versatility of use

Their strength, higher than that of high nickel electrodes, is suitable for Welding-ductile-iron even for thick sections. Upon dilution with the base metal, the composition of the weld metal approaches 30% Ni and 70% Fe which has the lowest thermal expansion of all nickel-iron alloys, contributing to the reduction of shrinkage stresses.

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High Silicon Cast Iron with Mixed Graphite (MG) Shapes for ...

Effect of Temperature Cycle on Thermomechanical Fatigue Life of a High Silicon Molybdenum Ductile Cast Iron. 2015-01-0557. View Details. TECHNICAL PAPER ALUMINUM ...

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IRON CASTINGS Specializing in Gray, Ductile, Malleable and ...

High Silicon Molybdenum is also referred to as SiMo Ductile Iron and High Silicon Moly. This material offers superior heat resisting characteristics. High Silicon Moly castings are typically the choice of engineers for such applications as turbochargers, manifold castings and any high temperature

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Corrosion resistance of high nickel ductile iron – ZHY Casting

Figure 1 shows the polarization curves of high nickel ductile iron and high silicon molybdenum ductile iron in 3.5% NaC solution.The calculated corrosion potential (Ecorr) and corrosion current (Icorr) of high nickel ductile iron are -0.523V and 0.36 x 10-4A/cm2 respectively according to the polarization curve.Although there is no obvious passivation zone in the corrosion process of high ...

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Molybdenum Silicon Alloy | AMERICAN ELEMENTS

Molybdenum-silicon is one of numerous metallic alloys manufactured by American Elements. Available alloy forms include sheets and plates, discs, foils, rods, tubes, powders, and other shapes. American Elements can produce molybdenum-silicon in various standard ratios of Mo:Si; custom alloy compositions are also available. Advanced chemical ...

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