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Malleable Ductile Cast Iron Sand Casting Pump Parts Casting Impeller

Categories Ductile Cast Iron
Brand Name: WEILIN
Certification: CE / ISO
Place of Origin: CHINA
MOQ: 1 Piece/Pieces
Price: negotiation
Payment Terms: T/T, L/C
Supply Ability: 300 Tons every month
Delivery Time: within 60 days
Packaging Details: Plywood crate + VCI Anti-Rust Bag
Machining: CNC Machining
Material: Ductile Iron GGG40; Gray Iron GG20
Used For: Pump Industry
Packing: Crate
Surface: Anti-Rust Oil
Process: Green Sand Casting Process
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Malleable Ductile Cast Iron Sand Casting Pump Parts Casting Impeller

Malleable Cast Iron Sand Casting Pump Parts Casting Impeller With Gray Iron HT200

Product Description and Process

1. Ductile Iron Casting Material Pump Castings Impeller Castings Sand Casting Process

2. Production process: green sand molding, pre-coated sand molding and resin sand molding which can produce iron castings from 50 gram to 2000 kilograms

3. Machining process: CNC machine, machining center, lathe, mill machine, drill machine, etc.

4. Surface treatment process: paint coating, electrophoretic coating, electrogalvanizing coating, black oxide coating, phosphate coating, powder coating, etc.

Product Material and Uses

1. Normally produce with gray iron HT200, HT250, Ductile Iron 65-45-12, 60-40-18, 80-55-06, 80-60-03, etc.

2. The ductile iron casting products are widely used for Auto-cars, trains, trucks, vehicle components, mining machinery components, agricultural machinery parts, textile machinery parts, construction machinery parts, valves and pump parts, etc.

What is Ductile Iron Used For? (Applications)

Ductile iron is great for use where you need strong metal with wear resistance.

Here is a sample list of things made from or contain ductile iron:

Pipe and pipe fittings (almost 50% of ductile iron sold in the US is for pipe and fittings)


Connecting rods (like in engines)



Disc brake calipers

Gears and Gear Boxes

Housings and manifolds

Hydrostatic Barrels

Idler arms

Large Machines

Machine Tooling

Military uses

Piano Harps (the part that holds the strings of a piano)

Spindle supports

Steering knuckles

Suspension system parts

Truck axles

Valves (especially high-pressure valves)

Wheel hubs

Yokes for power transmission


Selecting the right pump type and sizing it correctly are critical components to the success of any pump application. Equally important is selecting construction materials. The initial cost of these materials is normally the first consideration. Operational costs, replacement costs and longevity of service and repair costs will, however, determine the actual cost of the pump during its lifetime.

Standard pump part materials (such as cast irons, bronzes and low-carbon steels) are typically the least expensive first cost -- and the most readily available for replacement. However, these materials can become more expensive if they cause premature failure and unexpected service and replacement.

Factors that must be considered in selecting materials for wetted pump parts are, for example, user's experience, expected pump life, intermittent or continuous duty, pumping of hazardous or toxic liquids, condition of the liquid, pump suction energy level, and conditions of service (especially suction conditions).


Corrosion is the destructive attack of a metal by chemical or electrochemical reaction with its environment. Corrosion by itself is usually not a difficult problem; in fact, many materials are available to handle most fluids. It is, however, important to understand the various types of corrosion and factors affecting the corrosion rate in order to select the appropriate materials. It can be quite difficult to choose a material to withstand multiple factors, such as corrosion in addition to erosion and/or cavitation.

A general rule of thumb is to first select materials that will withstand corrosion and then select the one with the most appropriate abrasion and/or cavitation resistance. Further, the corrosive properties of the liquid may vary with one or more of the following liquid conditions: temperature, concentration, purity, velocity, suction pressure, entrained air, and entrained solids.

Abrasive Wear

Abrasive wear is the mechanical removal of metal from the cutting or abrading action of solids carried in suspension in the pumped liquid. The rate of wear for any material is dependent upon the following characteristics of the suspended solids:

  1. Solid concentration
  2. Solids size and mass
  3. Solids shape (spherical, angular or sharp fractured surfaces)
  4. Solids hardness
  5. Relative velocity between solids and metal surface

Common Ductile Iron Grades

While there are many different ductile iron specifications, foundries routinely offer 3 common grades;

Physical and Mechanical PropertiesASTM A536, Grade 60-40-18ASTM A536, Grade 65-45-12ASTM A536, Grade 80-55-06
Tensile Strength, min, psi60,00065,00080,000
Tensile Strength, min, MPa414448552
Yield Strength, min, psi40,00045,00055,000
Yield Strength, min, MPa276310379
Elongation in 2 in. or 50 mm, min %18126
Density lb/in30.2560.2560.256
Density g/cm37.17.17.1
Melting Temperature (Degrees F)2,100 – 2,1902,100 – 2,1902,100 – 2,190
Melting Temperature (Degrees C)1,150 - 1,2001,150 - 1,2001,150 - 1,200
Compressive Strength Ksi429429429
Compressive Strength MPa296029602960

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