BS2789 Grade 420-12 SG Iron

This material grade is not common material grade of sg cast iron, so normally, we will use ASTM A536 65-45-12 to replace it.

Related Specifications

BS EN 1563 GJS 420-12 60-40-10 65-45-12 FGS420-12 SF400 SFP400 DIN 1693 ISO 185 250

Chemical Analysis

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

Applications

BS2789 Grade 420-12 is suitable for applications where the optimal impact, fatigue, electrical conductivity and magnetic permeability features。

Typical applications include valves, dies, pistons and moulds.

Typical Properties

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.

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