| |
ISO 1083 JS 400-15 SG iron is suitable for applications requiring the electrical conductivity, optimal impact, fatigue and magnetic permeability features.
Typical applications include dies, pistons, valves, general mechanics, vibrating motors and moulds.
Chemical Composition of ISO 1083/JS/400-15 ductile cast iron:
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:
C: 2.5-3.8. Si: 0.5-2.5 Mn: 0.2-0.5 P: ≤0.08 S: ≤0.02
The followings are the mechanical properties, physical properties and technological properties of ISO 1083/JS/400-15 ductile cast iron:
Mechanical Properties1) of ISO 1083/JS/400-15 |
Tensile strength |
Rm |
MPa |
400 |
0.2 yield strength |
Rp0.2 |
MPa |
250 |
Elongation at fracture |
A5 |
% |
15 |
Elastic modulus |
E |
GPa |
169 |
Brinell hardness |
BHN |
|
130-180 |
1) The mechanical properties of cast iron with spheroidal graphite in integrally cast Y-shaped test specimens (minimum values) |
Physical Propertiesof ISO 1083/JS/400-15 |
Density |
ρ |
kg/dm3 |
7.20 |
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/400-15 |
Usage temperature |
<500 |
Machinability |
Excellent |
Wear resistance |
Low |
Induction or flame-hardening capacity |
Low |
Nitriding capacity |
Good |
Weldability |
Only weldable using special electrodes |
Equivalent Grade for ISO 1083/JS/400-15 ductile cast iron:
Country |
Standard |
Material Grade |
ISO |
ISO 1083 |
GRADE 400-15, 400-18 |
China |
GB 1348 |
QT400-18 |
USA |
ASTM A536 |
60-40-18 |
Germany/Austria |
DIN 1693 |
GGG40 |
European |
EN 1563 |
EN-GJS-400-15,EN-GJS-400-18 |
Japan |
JIS G5502 |
FCD400 |
Italy |
UNI 4544 |
GS370-17 |
France |
NF A32-201 |
FGS370-17 |
UK |
BS 2789 |
400/17 |
Spain |
UNF |
FGE38-17 |
Belgium |
NBN 830-02 |
FNG38-17 |
Australia |
AS 1831 |
GRADE 370-17, 400-12 |
Sweden |
SS 14 07 |
0717-02 |
Norway |
NS11 301 |
SJK-400.3, SJK-400 |
|
|
