Iron Trading

Cast iron is highly favoured for its ability to be easily cast into complex shapes when molten and for its low cost.

Iron Trading Across Industries

There are two major types of iron produced: wrought iron and cast iron. Within those, cast iron includes its own family of metals - gray iron, white iron, malleable iron, ductile iron, and compacted graphite iron.

Wrought iron has become famous for decorative pieces. Churches of the 15th and 16th century contain fine wrought iron pieces produced by skilled artisans. In the modern world, railings, doors, and benches are still made from wrought iron as custom pieces.

The primary difference in production between wrought iron and cast iron is that cast iron is not worked with hammers and tools. In composition—cast iron contains 2–4% carbon and other alloys, and 1–3% of silicon, which improves the casting performance of the molten metal.

A few industries that use cast iron:

Pipes
Machinery
Automotive Parts
Pots Pans and Utensils
Anchors

Cast iron is highly favoured for its ability to be easily cast into complex shapes when molten and for its low cost. Cast Iron properties can be easily altered by adjusting the composition and cooling rate without significant changes to production methods.

Cast Iron advantages over cast steel include ease of machining, vibration dampening, compressive strength, wear resistance and corrosion resistance. Corrosion resistance of cast iron is improved via the addition of minor elements such as silicon, nickel, chromium, molybdenum and copper.

We can help source the iron you desire at a competive price. Contact us through our Base Metal Enquiry Form and we will get back to as soon as we can.

Types of Cast Iron

Various types of cast irons are produced using different heat treatment and processing techniques, including gray iron, white iron, malleable iron, ductile iron, and compacted graphite iron.
    Gray Iron

    Gray iron is not as ductile as other forms of cast iron and its tensile strength is also lower. Gray iron is a better thermal conductor and has a higher level of vibration damping. It has a damping capacity that is 20–25 times higher than steel and superior to all other cast irons. Gray iron is also easier to machine than other cast irons, and its wear resistance properties make it one of the highest volume cast iron products. Gray iron is used to make engine blocks and cylinder heads, manifolds, gas burners, gear blanks, enclosures, and housings.

    White Iron

    When white iron is sheared, the fractured face appears white due to the absence of graphite. The cementite microcrystalline structure is hard and brittle with a high compressive strength and good wear resistance. In certain specialised applications, it is desirable to have white iron on the surface of the product. This can be achieved by using a good conductor of heat to make part of the mold. White Iron is used to make mill linings, shot-blasting nozzles, railroad brake shoes, slurry pump housings, rolling mill rolls, and crushers.

    Malleable Iron

    White iron can be further processed into malleable iron through a process of heat treatment. An extended program of heating and cooling, results in the breakdown of the iron carbide molecules, releasing free graphite molecules into the iron. Different cooling rates, and the addition of alloys, produces a malleable iron with a microcrystalline structure. Malleable iron is used for heavy duty bearing surfaces, chains, sprockets, connecting rods, drive train and axle components, railroad rolling stock, and farm and construction machinery.

    Ductile Iron

    Ductile iron obtains its properties through the addition of magnesium into the alloy. The presence of magnesium causes the graphite to form in a spheroid shape as opposed to the flakes of gray iron. Because ductile iron deforms on impact, rather than shattering into shards, the material is used to make cast iron bollards. Ductile iron can be used to make steering knuckles, plow shares, crankshafts, heavy duty gears, automotive and truck suspension components, hydraulic components, and automobile door hinges.

    Compacted Graphite Iron

    Compacted graphite iron has a graphite structure and associated properties that are a blend of gray and white iron. Compacted graphite iron has a higher tensile strength and improved ductility compared to gray iron. Compact graphite iron is suitable for diesel engine blocks and frames, cylinder liners, brake discs for trains, exhaust manifolds, and gear plates in high pressure pumps.

 

Choosing the right cast iron for your application is important as their properties can be quite different from each other. At Global Trading we can help and guide you through the process in selecting the right iron for your applications.

Other Base Metal Types

Steel

Steel is an important commodity because it is extremely strong and relatively low cost, making it suitable for industrial uses in construction, infrastructure and manufacturing.

Copper

The applications of copper make it a sought-after metal by a large number of industries. Its wide range of uses makes it a popular commodity to buy and trade. It’s an efficient conductor of heat and electricity.

Aluminium

Aluminium is the most abundant mineral on Earth behind oxygen and silicon, making it the most abundant metal naturally found on the planet, and the second-most used metal globally, behind only iron.

Iron

Cast iron is highly favoured for its ability to be easily cast into complex shapes when molten and for its low cost. Cast Iron properties can be easily altered by adjusting the composition and cooling rate without significant changes to production methods.

Global Trading Can Help You Purchase Base Metals

At Global Trading we can help you source the base metal your require. We will explain the process and address any questions that you might have. Please contact us at any time or message us via WhatsApp or Skype