What is A536?

Ductile Iron ASTM A536 ASTM A536 65-45-12 is a nodular Iron with a ferritic and pearlitic microstructure and mechanical properties comparable to low alloy steels. Ductile iron 65-45-12 is one grade in a family of many. Chemistry requirements are not specified in the ASTM A536 standard.

What is the difference between SG iron and ductile iron?

As the name Ductile Iron suggests this grade of Cast Iron has a degree of ductility. The main characteristic of this material is the structure of the graphite. In SG Cast Iron the graphite is in the form of spherical nodules (hence the name Spheroidal Graphite) rather than flakes as in Grey Iron.

Is SG an iron standard?

S G Iron / Ductile Iron Chemical Components Ductile iron is also called as nodular iron or SG iron. Its chemical components did not have strict range for many material standards, however, its range should be useful for buyers to evaluate the quality of cast iron.

What is SG material?

SG Iron is also known as Ductile Cast Iron, Nodular Cast Iron, Spheroidal Graphite Iron and Spherulitic Cast Iron. This grade of Iron was developed over 60 years ago and in the USA.

What is SG casting?

In SG Cast Iron the graphite is in the form of spherical nodules (hence the name Spheroidal Graphite) rather than flakes as in Grey Iron. This nodular graphite structure inhibits the creation of linear cracks hence the ability to withstand distortion.

Is standard for ductile iron?

The current ISO standard for ductile iron is ISO 1085 (2004), the grades being much the same as BS EN 1563. It says a lot for the extensive, worldwide applications for ductile iron that an ISO standard is available for it.

Which is heavier cast iron or ductile iron?

This is because they are much stronger than cast iron. Moreover, ductile iron is better than cast iron in difficult terrains. Ductile iron is mainly used in the automobile industry such as trucks, tractors and oil pumps.

Why is SG iron used?

SG Iron has long been used to transport water and other liquids. Its remarkable strength to weight ratio, alongside its toughness makes SG Iron a suitable material to withstand the high operating pressures faced by pressure pipes and fittings.

Is SG standard for cast iron?

SG Iron is a type of cast iron that has been treated while molten with an element such as magnesium or cerium to induce the formation of free graphite as nodules or spherulites….

Country	ISO
Standard	ISO 1083
Equivalent Grades of Ductile Iron (SG Iron, Nodular Graphite Iron)	400-15 400-18
450-10
500-7

What is the difference between SG iron and gray cast iron?

Continuous casting of ductile and gray iron dominates the industry in terms of low material cost, high machinability and high performance….Gray Iron/Ductile Iron Comparison.

	Gray Iron	Ductile Iron
Yield Strength	–	+
Machinability	+	+
Contact continuous cast iron suppliers for gray & ductile iron raw stock.

How do I increase hardness in my SG iron?

Alloying elements are added to increase the hardenability of S.G. iron. Mn and Mo are much more effective (per weight percent added) than Ni or Cu. Moreover, the combinations of elements such as Ni and Mo, or Cu and Mo, or Cu, Ni and Mn are much more effective than the individual elements.

What is the main difference between ductile iron and gray iron?

Ductile iron has a greater resistance to impacts, and is able to resist a minimum of 7 foot pounds of impact (versus 2 pounds of impact for gray iron). This means that while ductile iron can be used in critical applications that involve impact, gray iron has limits that prohibit it from being used for certain purposes.