EN-GJS-450-10, ASTM A536
65-45-12, Ductile Iron, SG Iron
Chemical Composition, Mechanical and Physical Properties
EN-GJS-450-10 (ASTM A536 65-45-12) is an
excellent ductile iron (SG iron) material grade. It has
comparatively high tensile strength, high elongation, and good
impact resistance. So,
this cast iron grade has very wide application.
Our dandong foundry has producing this
material grades for many years, and herein, we share its chemical
composition, mechanical and physical properties.
Material Grades of Ductile
The equivalent grades of EN 1563
EN-GJS-450-10 are ASTM A536 65-45-12, FCD400, FGS400, FGE42-12,
FNG42-12, GS400-12, 60-42-10, QT450-10, ISO 450-10. Although some
grades just require elongation 10%, the iron foundries just need to
adjust the chemical composition to make the elongation a little
higher, then they will meet the requirement.
Chemical Composition of SG Iron, Ductile Iron GJS-450
According to all international material
standards, the chemical composition should not be taken as the
inspection standard, unless the clients have special requirements.
However, by our experience, the
approximate chemical components of ductile iron GJS-450 should be
as C: 3.50-4.00, Si: 2.20-2.90, Mn: 0.3-0.6, P: 0.03-0.06, S:
0.02-0.040, Mg: 0.020-0.060.
3. Mechanical &
Physical Properties of Ductile Iron GJS-450
Tensile Strength ≥ 450 MPa. Yield
Strength ≥ 310 MPa. Elongation ≥ 10%.
As for A536 65-45-12, its elongation ≥
12%. Other requirements will be as same as GJS-450.
There is no strict stipulation to the
hardness of GJS-450, however, normal hardness range should be 160 -
210 BH (Brinell Hardness).
Main Application of Ductile Iron GJS-450
Because of the comparatively high
elongation, this GJS-450 ductile iron could be used for producing
impact resistance casting parts. In addition, it has good low
temperature impact resistance, and good hardness, so it has been
used for producing plow point, blade plough, furrow plough, furrow
plough, plough pile, differential shell, valve body, and high
The followings are some ductile iron
castings we produced.