What material is GGG50?

GGG-50, a ferritic-perlitic cast iron material with nodular cast iron for cast pieces for static and dynamic loadings in the construction of vehicles, in civil engineering and plastics processing, in the machine tool manufacture, in mechanical engineering, manufacture of fittings, energy mechanical engineering.


What is the difference between GGG40 and GGG50?

Let’s compare these material grades! GGG40 (EN-GJS-400-15) has normal tensile strength min. GGG50 (EN-GJS-500-7) has high tensile strength min. 500 Mpa, but its elongation is min. 7%, so its ductility is relatively bad, the good point is its tensile strength is very high, so some clients prefer to use it too.


What is SGI 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. The main characteristic of this material is the structure of the graphite.


What is GGG40?

GGG40 is the most commonly used nodular cast iron alloy and has a predominantly ferritic structure. This cast iron offers excellent machinability combined with good impact resistance, high electrical conductivity, good elongation properties and magnetic permeability. The material cannot be welded.

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What is ASTM 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 GG25?

GG25 is the most commonly used cast iron alloy. It is a lamellar cast iron with a predominantly pearlitic structure. Heat treatment to increase hardness is not recommended. GG25 is similar to GG20, but – due to the slightly finer structure – offers a higher tensile strength.


Is tensile a strength?

tensile strength, maximum load that a material can support without fracture when being stretched, divided by the original cross-sectional area of the material. When stresses less than the tensile strength are removed, a material returns either completely or partially to its original shape and size.


Is 1865 a chemical composition?

Spheroidal or nodular graphite cast iron or ductile iron is a casting alloy of iron and carbon, carbon being present in the spheroidal form. Graphite flakes in cast iron act as discontinuities in the matrix and thus lower its mechanical proper- ties. The sharp corners of the flakes also act as stress raisers.


What is the difference between SG iron and cast iron?

Ductile iron can be bent without breaking, whereas cast iron is brittle and breaks when bent. As ductile iron can be bent, it can be made into different shapes and forms. But one cannot make out different shapes and forms using cast iron.

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How is SG iron made?

To make S.G. Iron, mild steel scrap, Fe-Si, Coke etc. is melted in induction furnace. Once the melt is ready, it is inoculated with small addition of Magnesium or Chromium available in Ferro blends. The metal is then poured into moulds, cooled and fettled.


Is ductile iron cast?

Invented in 1943, ductile iron is a modern iteration of cast iron. Cast iron and ductile iron have contrasting physical properties caused by differences in their microstructures.


How do you make cast iron ductile?

How is Ductile Iron Made? Rather than being cast from iron or steel scrap, ductile iron is made primarily from the crude iron that’s produced by smelting ore in a blast furnace, commonly called ‘pig iron. ‘ Pig iron is about 90% iron with high carbon content, and its chemical properties are very stable.


Is ductile iron stronger than steel?

While there is no large difference when it comes to tensile strength, ductile iron has the greater yield strength (40 ksi). Cast steel, on the other hand, can only reach 36 ksi yield strength. As the strength of ductile iron increases ductility decreases.


What is ASTM A27?

ASTM A27 is a specification developed for carbon steel castings for general applications. Often referred to as mild steel, or plain carbon steel, the balance of cost vs. ASTM A27 includes carbon steel castings for applications requiring up to 70 ksi (485 MPa) minimum tensile strength.

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What is gjl250?

Grey Iron EN-GJL-250, or grey cast iron, is a type of cast iron that has a graphite microstructure. It is named after the grey colour of the fracture it forms, which is due to the presence of graphite. It is the most common cast iron and the most widely used cast material based on weight.


What is C45 steel?

C45 grade steel is a medium carbon steel offering moderate tensile strengths. The material is capable of through hardening by quenching and tempering on limited sections but can also be flame or induction hardened to Hrc 55. Machinability similar to that of mild steel can be expected, however weldability is reduced.


What is ASTM A126?

ASTM A126 Gray Iron casting is intended for use as valve pressure retaining parts, pipe fittings and flanges only, include three casting metal grades: Class A, Class B and Class C.

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