EN-GJS-400-15, GGG40 Cast Iron Material
EN-GJS-400-15 is a very common ductile
cast iron material grades in Europe standard
DIN EN 1563,
which is equivalent to GGG40 in standard
DIN 1693. The followings are its equivalent grades, material
specification, chemical composition, density and hardness.
EN-GJS-400-15 Equivalent Grades
This grade is equal to the
cast iron grades
ISO 1083 400-15, China GB1348 QT400-15, USA ASTM A536 60-40-18,
Japan FCD400, Italy GS400-12, France FGS400-12, Spain FGE42-12,
Belgium FNG42-12, Australia AS1831 400-12, Norway SJK-400.
EN-GJS-400-15 Material Specification
Tensile strength is minimum 400 Mpa.
Yield strength is minimum 250 Mpa.
Elongation is minimum 15%.
There is no impact requirement for this ductile iron grade. The
tensile strength, yield strength and elongation will be taken as the
main quality inspection factors.
EN-GJS-400-15 Chemical Composition
In different material standards, the recommended chemical
composition is different, so there is no mandatory stipulation to
them. The iron foundries could adjust the chemical components
according to their experience and production conditions, as long as
they could meet the mechanical properties. The normal chemical
composition for this grade is as the following:
EN-GJS-400-15 Material Density and Hardness
The density of this material is 7.3 g/cubic centimeter, or 7.3
Hardness range is Brinell Hardness 130-180.
EN-GJS-400-15 Material Properties
This material grade is the most common used cast iron in China and
worldwide. Its tensile strength, ductility and toughness are much
more better than grey cast iron, and its mechanical properties could
be compared with cast steel.
However, its disadvantages are also obvious. Its shrinkage rate is
large, so easily to cause shrinkage defects. The casting process is
more complex and requirements to raw pig iron is also higher than
other cast iron. Moreover, the technical requirements to the whole
production process are also strict and high.
This grade of ductile iron
could be used to produce impact-resistant and shock-resistant parts,
such as the wheel hub of automotive and tractors, drive axle
housings, differential carrier, cases, valve bodies, pipe and
fittings, high and low pressure cylinders, Motor casings, gear boxes
and flywheel and covers etc.