Ductile Iron Casting

Ningbo Supreme Machinery Co., Ltd is a professional ductile Iron casting manufacturer and supplier in China.

We have been in this line for more than 25 years, products are mainly exported to USA, Australia, Germany, Italy, Japan, South Africa, etc.

What is Ductile Iron Casting?

It can be obtained by spheroidizing treatment of molten iron of grey iron , and the precipitated graphite is spherical, so we call it ductile iron for briefly. It has higher strength, better toughness and plasticity than common grey cast iron, mainly used in the manufacturing of internal combustion engines, auto spare parts and agricultural machinery.

Ductile Iron Casting Advantage

high strength, ductility, and wear resistance

Lower costs than that of steel casting

Higher production rate

Dimensional accuracy, clear external outline

Smooth surface, good quality

Energy saving, labor saving.

Material Grade

Country	Standard	Equivalent Grades of Ductile iron (SG Iron, Nodular Graphite Iron)
ISO	ISO 1083	400-15 400-18	450-10	500-7	600-3	700-2	800-2	900-2
China	GB 1348	QT400-18	QT450-10	QT500-7	QT600-3	QT700-2	QT800-2	QT900-2
USA	ASTM A536	60-40-18	60-42-10 65-45-12	70-50-05	80-55-06 80-60-03	100-70-03	120-90-02	—
Germany Austria	DIN 1693	GGG40	—	GGG50	GGG60	GGG70	GGG80	—
European	EN 1563	EN-GJS-400-15 EN-GJS-400-18	EN-GJS-450-10	EN-GJS-500-7	EN-GJS-600-3	EN-GJS-700-2	EN-GJS-800-2	EN-GJS-900-2
Japan	JIS G5502	FCD400	FCD450	FCD500	FCD600	FCD700	FCD800	—
Italy	UNI 4544	GS370-17	GS400-12	GS500-7	GS600-2	GS700-2	GS800-2	—
France	NF A32-201	FGS370-17	FGS400-12	FGS500-7	FGS600-2	FGS700-2	FGS800-2	—
UK	BS 2789	400/17	420/12	500/7	600/7	700/2	800/2	900/2
India	IS 1865	SG370/17	SG400/12	SG500/7	SG600/3	SG700/2	SG800/2	—
Spain	UNF	FGE38-17	FGE42-12	FGE50-7	FGE60-2	FGE70-2	FGE80-2	—
Belgium	NBN 830-02	FNG38-17	FNG42-12	FNG50-7	FNG60-2	FNG70-2	FNG80-2	—
Australia	AS 1831	300-17 400-12	—	500-7	600-3	700-2	800-2	—
Sweden	SS 14 07	0717-02	—	0727-02	0732-03	0737-01	0864-03	—
Norway	NS11 301	SJK-400.3 SJK-400	—	SJK-500	SJK-600	SJK-700	SJK-800

Ductile Iron Castings Applications

high strength and high elastic of ductile iron casting can be used in making various products as per following

bearing housing,

brake block,

chassis mount,

wheel hub,

connecting rod bracket,

valve body,

exhaust manifold,

Hydraulic cylinder

Production Process

Sand Casting, Automatic Molding, Shell Molding, Green Sand Casting, Resin Sand Casting

Ductile iron casting in different grades, such as QT400-15, QT400-15, QT450-10, QT500-7, QT600-3, etc

View as

Cast Iron Bearing Housing and Bearing Seat

Ningbo Supreme Machinery is a professional manufacturer and supplier of cast iron bearing housing and bearing seat with mature R&D, exporting and after-sales service team. We always strive to become better and provide competitive products and professional service.