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| Material: | ASTM A536 65-45-12 | Process: | Moulding Machine Green Sand Casting |
|---|---|---|---|
| Machining: | CNC Machining | Surface: | Shot Blasting |
| Packing: | Crate |
ASTM A356 Ductile Iron Casting Process Cast Iron Parts Supplier For Agricultural Machinery
Product Description and Process
1. ASTM A356 Ductile Iron Casting Process Cast Iron Parts Supplier For Agricultural Machinery
2. Production process:
green sand castings process by moulding machine or by handwork
pre-coated sand casting process
resin sand castings process
automatic production line
we 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 in Ductile Iron? (Composition)
If you were to do a chemical analysis of ductile iron, this is what you would normally find:
Iron ~94%
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 |
| Density lb/in3 | 0.256 | 0.256 | 0.256 |
| Density g/cm3 | 7.1 | 7.1 | 7.1 |
| 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 |
| UNS | F32800 | F33100 | F33800 |
Recent development of ductile cast iron production technology in China
With the constant growth of national economy, the castings output in China increases quickly. China has been ranked the top manufacturer of casting production in the world since 2000. The casting output had reached 24,420,000 tons in 2005, accounting for about 28.5% of the world's total output [1]. In addition, the output of ductile iron had also developed rapidly, which reached 5,838,000 tons in 2005, increasing to 2.46 times of output in 2000. The ratio of ductile iron castings to total castings increased from 18% in 2000 to 23.9% in 2005. Over the past five years, the production of centrifugal-cast iron pipe had achieved an average 40% growth in China, to 1.9 million tons in 2004.
Moreover, huge quantities of various centrifugal-cast iron pipes have been exported to Southeast Asian countries. However, the ratio of ductile iron castings to total castings in developed countries, such as France (40.8%), the United States (32.88%) and Japan (28.9%), is still beyond that of China in 2005. With the development of automotive and cast pipe industries, as well as the gradual improvement of ductile iron casting quality in China, the applications of ductile iron castings will be continuously expanded. In the "11th Five-Year Plan," the production of ductile iron in China will be greater than that of the world's average level, and will continue to be an important casting alloy for various engineering fields in the future. Therefore, further stabilizing ductile iron production process, improving ductile iron quality, exploiting and introducing new technologies for ductile iron production, are still an important task for Chinese casting manufacturing industry.
