Choice of cast iron

FONDERIE Birdie foundry provides you with a cast iron guide to help you choose the best cast iron according to your needs.

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Guide to Cast Iron

Reference Guides

Spheroidal Graphite Cast Iron (SG)

Type of cast iron	Operating temperature (°C)	Machinability	Wear resistance	Surface hardening by induction or low	Surface hardening by nitriding	Weldability
EN GJS 350 22 LT	<500	very good	low	low	good	Only with special cast iron electrodes
EN GJS 400 18 LT	<500	very good	low	low	good
EN GJS 400 15	<500	very good	low	low	good
EN GJS 450 10	<500	good	low	low	good
EN GJS 500 7	<500	good	good	good	good
EN GJS 600 3	<500	good	good	good	good
EN GJS 700 2	<500	average	very good	very good	very good
EN GJS 800 2	<500	average	very good	very good	very good
EN GJS 450 18	<500	good	low	low	good
EN GJS 500 14	<500	good	low	low	good
EN GJS 600 10	<500	good	low	low	good

Spheroidal Graphite Cast Iron (SG) – High Strength Grade

High strength grade	Operating temperature (°C)	Machinability	Wear resistance	Surface hardening by flame or induction	Surface hardening by nitriding	Weldability
EN GJS 800 10	<200	average	very good	Not hardenable, not weldable
EN GJS 1050 6	<200	average	very good
EN GJS 1200-3	<200	difficult	very good

Spheroidal Graphite Cast Iron (SG) – Alloyed Grades

Alloyed grades	Operating temperature (°C)	Machinability	Wear resistance	Surface hardening by flame or induction	Surface hardening by nitriding	Weldability
EN GJS SiMo40-6	<700	average	good	-	-	Only with electrons
EN GJS SiMo45-10	<700	average	good	-	-
EN GJSA XNiSiCr35-5-2	<900	good	average	-	-

Lamellar Graphite Cast Iron

Service properties	Machinability	Damping capacity	Wear resistance	Surface hardening by flame or induction	Surface hardening by nitriding	Weldability
EN - GJL 150	very good	very good	average	not suitable	good	Weldable under conditions with special cast iron electrodes
EN - GJL 200	very good	very good	good	low	good
EN - GJL 250	very good	very good	very good	good	good
EN - GJL 300	very good	very good	very good	very good	very good

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