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ISO 1083 JS 450-10 ductile cast iron has the characteristics of good strength, very high ductility even at low temperatures and good machinability.
Our Dandong Foundry normally use ISO 1083/JS/450-10 ductile cast iron to produce exhaust manifolds, dental chair brackets, cradle brackets, gas valve parts, gas compressor parts, security parts for low temperature applications, etc.
Main Chemistry Composition of ISO 1083/JS/450-10 |
Reference analysis for medium wall thicknesses |
C |
Si |
Mn |
Microstructure |
3.20 – 3.50 |
2.80 – 3.20 |
0.40 max |
Ferrite and pearlite |
As for normal ductile iron, the chemical composition is not important comparatively. The iron foundries could adjust the compositions according to their experience as long as they could meet the physical and mechanical requirements.
The followings are the mechanical properties, physical properties and technological properties of ISO 1083/JS/450-10 ductile cast iron:
Mechanical Properties1) of ISO 1083/JS/450-10 |
Tensile strength |
Rm |
MPa |
450 |
0.2 yield strength |
Rp0.2 |
MPa |
310 |
Elongation at fracture |
A5 |
% |
10 |
Elastic modulus |
E |
GPa |
169 |
Brinell hardness |
BHN |
|
160-210 |
Fatigue limit2) |
|
MPa |
210 |
Fatigue limit3) |
|
MPa |
128 |
1) The mechanical properties of cast iron with spheroidal graphite in integrally cast Y-shaped test specimens (minimum values)
2) Wöhler rotating bending fatigue test, unnotched test specimen
3) Wöhler rotating bending fatigue test, notched test specimen |
Physical Propertiesof ISO 1083/JS/450-10 |
Density |
ρ |
kg/dm3 |
7.10 |
Thermal conductivity |
λ at 300 °C |
W/(K*m) |
36.2 |
Thermal expansion coefficient |
α up to 400 °C |
10-6/K |
12.5 |
Technological Properties of ISO 1083/JS/450-10 |
Usage temperature |
<500 |
Machinability |
Good |
Wear resistance |
Low |
Induction or flame-hardening capacity |
Low |
Nitriding capacity |
Good |
Weldability |
Only weldable using special electrodes |
Equivalent Grades of ISO 1083/JS/450-10 ductile cast iron:
Country |
Standard |
Material Grade |
ISO |
ISO 1083 |
GRADE 450-10 |
China |
GB 1348 |
QT450-10 |
USA |
ASTM A536 |
60-42-10, 65-45-12 |
European |
EN 1563 |
EN-GJS-450-10 |
Japan |
JIS G5502 |
FCD450 |
Italy |
UNI 4544 |
GS400-12 |
France |
NF A32-201 |
FGS400-12 |
UK |
BS 2789 |
420/12 |
Spain |
UNF |
FGE42-12 |
Belgium |
NBN 830-02 |
FNG42-12 |
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