Ductile Iron Casting

Ductile iron is a type of graphite-rich casting iron, but it has not a long history that it was discovered in 1943.

Ductile iron actually is not a single material. It's a group of materials that can be produced with a wide range of properties through control of their microstructure. The ductile graphite is in the form of nodules rather than flakes as in the grey iron. Whereas sharp flakes create stress concentration points within the metal matrix, rounded nodules inhibit the creation of cracks, thus providing the enhanced ductility that gives the alloy its name.

Of course, casting is one of the major ductile iron applications. The casting part result from molten ductile iron being poured into voids in a mold. The ductile iron can be produced from steel or iron scrap, but pig iron is the primary source of infeed for most modern ductile iron casting manufacturers. Pig iron is an intermediate product.

Can ductile iron pipe be welded?

Ductile cast iron is different from gray cast iron, which is spheroidized to make its mechanical properties significantly improved, mainly for the manufacture of mechanical properties required for higher castings, but also with a certain range instead of carbon steel or alloy steel to create a higher strength, complex shape of the casting. This requires that when welding ductile iron, not only to ensure that no welding defects, but also from the strength point of view so that the weld has good strength and plasticity. Ductile cast iron commonly used magnesium alloy as a nebulizer, and magnesium is an element that prevents graphitization, which will cause white mouth organization when welding, which is one of the main difficulties of welding ductile iron. As the ductile iron castingmanufacturer, RAY FORCE is committed to providing high-quality ductile iron casting for customers.

Which is ductile cast iron?

Cast iron was developed by the French in 1722 when it was developed as white heart malleable cast iron and later developed successively as black heart malleable cast iron. It was not until 1947 that an Englishman discovered the presence of spheroidal graphite in a cast iron, which is actually a kind of ductile cast iron. Later on, through continuous improvement, some rare earth and magnesium were added to the cast iron to get a real sense of ductile cast iron. And from then on, it also began to be mass-produced and applied, and became the most widely used cast iron material. As we know, China is one of the first countries in the world to start metal smelting. So in some iron excavated from ancient smelting sites in China, the test found a small amount of radial spheroidal graphite appearing. It is proved that these iron appeared in the Western Han Dynasty, more than 2,000 years ago, which proves once again that China had very high smelting technology and investment casting technology in ancient times.

Ductile Iron Applications

Ductile iron is commonly used in the production of the complex force, strength, toughness, wear resistance, and other parts with high requirements, such as crankshafts, camshafts of automobiles, tractors, internal combustion engines, etc., and medium pressure valves of general machinery. The stainless steel casting China products made by ductile iron casting manufacturers can also be used as storage and transportation containers for highly radioactive objects.

Grey Cast Iron VS Ductile Cast Iron

Ductile cast iron has better wear resistance and toughness, but poor heat dissipation. And ductile cast iron is suitable for the crankshaft, and joints in auto parts.

Gray cast iron has high hardness, poor toughness, and wear resistance, but good heat dissipation. But heat dissipation is good, and it is suitable for gasoline cylinders and other products that need good heat dissipation in automobile casting.

Rayforce Manufacture is a private castings company, we provide metal casting china, vacuum die casting, casting small object bronzeand etc. Want to know more? Please contact us.

Other supplier products

	Vacuum Die Casting	The vacuum pressure casting, as this name indicates, is casting method which the major processes including the melting, pouring, solidifying are pe...
	Metal Casting	Casting process usually refers to the metal casting process, is one of heating processing technologies handled by humans can be found recorded as e...
	Aluminum Casting	Aluminum is a lightweight metal with silvery-white color. Because of its chemical features, aluminum never exists in the metallic form in nature. B...
	Low Pressure Die Casting	The low pressure die casting is to let the melted metal flow into the casting mold under a certain degree of pressure, and solidify the casting par...
	Brass, Bronze, Copper Casting	As defined by its main properties, copper offers excellent electrical and heat conductivity, and good corrosion resistance ability as well. But nat...

供应产品

Same products

	METAL BRACKETS	卖方: JCL Precision Part Co.Ltd.	Custom metal brackets are some of the strongest supports. JCL precision-engineers them to your cu...
	陶瓷型芯注射机	卖方: 秦皇岛埃孚科技有限公司	陶瓷型芯注射机主要用于形状复杂，高品质、高精度铸件的陶瓷型芯的成型。该设备通过吸收国内外先进制造技术和精铸行业的自身特点，研制开发成功。 合模力：35T-100T
	压蜡机	卖方: 秦皇岛埃孚科技有限公司	注蜡机用于精密铸造生产中蜡模的制作。合模力最大 ：10T-150T
	全自动脱蜡釜	卖方: 秦皇岛埃孚科技有限公司	脱蜡釜，是精铸生产中的型壳脱蜡专用设备 内腔尺寸: Φ1000×1200mm/ Φ1200×1500mm/ Φ1400×1600mm
	CNC TURNING	卖方: Baoji Haiqiao Industrial & Trading Co., Ltd.	As a CNC turning manufacturerin China, HQ has the capacity to dealing with both small lot and mas...