Payment & Shipping Terms:
|Material:||Ductile Iron GGG40; Gray Iron GG20||Process:||Green Sand Casting Process|
|Machining:||CNC Machining||Surface:||Anti-Rust Oil|
|Used For:||Pump Industry||Packing:||Crate|
nodular cast iron,
spheroidal cast iron
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
Piano Harps (the part that holds the strings of a piano)
Suspension system parts
Valves (especially high-pressure valves)
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 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:
If you were to do a chemical analysis of ductile iron, this is what you would normally find:
Carbon 3.2 – 3.60%
Silicon 2.2 – 2.8%
Manganese 0.1 – 0.2%
Magnesium 0.03 – 0.04%
Phosphorus 0.005 – 0.04%
Sulfur 0.005 – 0.02%
Copper <= 0.40%
To improve the strength of ductile iron, additional tin or copper can be added. To improve corrosion resistance, copper, nickel, or chromium can replace anywhere from 15-30% of the iron.
Common Ductile Iron Grades
While there are many different ductile iron specifications, foundries routinely offer 3 common grades;
|Physical and Mechanical Properties||ASTM A536, Grade 60-40-18||ASTM A536, Grade 65-45-12||ASTM A536, Grade 80-55-06|
|Tensile Strength, min, psi||60,000||65,000||80,000|
|Tensile Strength, min, MPa||414||448||552|
|Yield Strength, min, psi||40,000||45,000||55,000|
|Yield Strength, min, MPa||276||310||379|
|Elongation in 2 in. or 50 mm, min %||18||12||6|
|Melting Temperature (Degrees F)||2,100 – 2,190||2,100 – 2,190||2,100 – 2,190|
|Melting Temperature (Degrees C)||1,150 - 1,200||1,150 - 1,200||1,150 - 1,200|
|Compressive Strength Ksi||429||429||429|
|Compressive Strength MPa||2960||2960||2960|
Contact Person: Mr. James Wang
Tel: +86 13213152686