BS2789 Grade 420-12 SG
This material grade is not common material
grade of sg cast iron, so normally, we will use
65-45-12 to replace it.
BS EN 1563 GJS 420-12 60-40-10 65-45-12 FGS420-12 SF400 SFP400 DIN
1693 ISO 185 250
Carbon 3.40-3.85% Phosphorous 0.10% max
Manganese 0.10-0.30% Sulphur 0.02% max
Silicon 2.30-3.10% Magnesium 0.07% max
BS2789 Grade 420-12 is suitable for applications where the optimal
impact, fatigue, electrical conductivity and magnetic permeability
Typical applications include valves, dies, pistons and moulds.
Tensile Strength N/mm² min 420
Elongation % 12
Typical Hardness HB 212
Mechanical properties shown are typical and may vary subject to the
size and section of this sg iron grade.
Certification BS2789 420-12 S G Iron is available with a certificate
or conformity, please request when placing any orders.