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
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