Grade 250 cast iron chemical composition. Typical Properties of BS145...
Grade 250 cast iron chemical composition. Typical Properties of BS1452 250 Grey Cast Iron Typical Tensile range of material (subject to section) N/mm² 155-195 Typical Hardness HB 145-240 Mechanical Equivalent grades of cast iron EN-GJL-250 (EN-JL1040) Warning! Only for reference Note for engineers and buyers: Always verify the mechanical properties, graphite class, and chemical composition in supplier certificates rather than relying solely on nominal grade names, as slight variations in matrix structure can affect performance, machinability, and damping. Thermal conductivity and vibration damping are excellent. Chemical Composition % EN1561 EN GJL 250 is commonly supplied as a continuous cast grey iron bar in rounds and flats. EN-GJL-250, GG25 Equivalent Grades Equivalent grades of cast iron EN-GJL-250 (EN-JL1040) Warning! Only for reference EN-GJL-250, also known as GG25, is a high-grade grey cast iron defined by European standard EN 1561 and has equivalent grades in various international standards. . The iron foundries could adjust the compositions according to their experience as long as they could meet the physical and mechanical requirements. 250 is the ISO numeric designation. Its typical chemical composition includes carbon, silicon, manganese, phosphorus, and sulfur, but foundries can adjust these as long as mechanical properties are met, with tensile strength being the primary quality inspection standard Material Physical Property of Grey Iron: Grey Iron Chemical Requirements in EN 1561: No standard specifies the chemical composition, so we only recommend the following composition based on actual production. It has a dense, homogeneous structure with fine graphite flakes, allowing for machining to a good polished surface suitable for plating. The grade supersedes BS1452 Grade 17 and is suited for applications requiring strength and wear resistance, such as pistons, moulds, dies EN-GJL-250 is a high material grade of grey cast iron in European standard EN 1561, it is also named as cast iron GG25 in standard DIN 1691 by Germany and Austria. jbgftvlgfgrqiathuubjplccqpjitrjderkixsonikvnhdxxpspxlq