Nodular cast iron


Fonderia Quaglia & Colombo also produces ductile or spheroidal graphite cast iron, an iron-carbon alloy in which the free carbon is present in the form of graphite nodules. This combination produces a very ductile and workable material, with considerable yield strength and durability. The addition of alloying elements makes the material highly resistant to acids, to high temperatures, and to wear.

With the use of special heat treatments it is possible to alter the matrix and therefore the mechanical characteristics of the iron. Ductile cast iron is an excellent modern construction material that combines the positive qualities of grey iron with those offered by molten steel. Indeed, with its combination of yield strength, elongation and workability, it provides designers with a wide range of possibilities, which can be used to resolve any problems with their project. Moreover, in many applications, ductile iron can be used instead of molten, forged or electro-welded steel, often providing better performance at a lower cost.

For more information about the services and operations offered by Fonderia Quaglia & Colombo simply call (+39) 0331 402473 during office hours, Monday to Friday from 9.00 to 13.00 and from 14.00 to 18.00, or fill out the form in the dedicated section, accessible by clicking on this text.

Material Rm N/mm2 Rp0,2 N/mm2 Elongation A% Prevalent structure Brinell Hardness HB
EN-GJS 350-22 350 220 22 Ferrite structure ≤ 160
EN-GJS 400-18 400 250 18 Ferrite structure 130 ÷ 180
EN-GJS 400-15 400 250 15 Ferrite structure 130 ÷ 180
EN-GJS 450-10 450 310 10 Ferrite structure 160 ÷ 210
EN-GJS 500-7 500 320 7 Ferrite – pearlite structure 170 ÷ 230
EN-GJS 600-3 600 370 3 Pearlite – ferrite structure 190 ÷ 270
EN-GJS 700-2 700 420 2 Pearlite structure 225 ÷ 305


All values ​​are obtained from standard test pieces made from separately cast samples.