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Special nodular cast iron - SiMo |
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Ferritic nodular iron with silicon-molybdenum is an alloy cast with a basis of iron, silicon, molybdenum and carbon. Carbon can be found mainly as nodular particles. CHEMICAL COMPOSITION OF CASTINGS
| Description of the material |
Chemical composition (in specific %) of moulded parts |
| Symbol |
number |
C |
Si |
Mn |
Mo |
P |
S |
| GJSF-XSiMo4-0,6 |
JS3010 |
3,1 - 3,6 |
3,8 - 4,2 |
≤ 0,5 |
0,4 - 0,8 |
≤ 0,07 |
≤ 0,02 |
| GJSF-XSiMo4-1 |
JS3020 |
3,1 - 3,6 |
3,8 - 4,2 |
≤ 0,5 |
0,8 - 1,2 |
≤ 0,07 |
≤ 0,02 |
| GJSF-XSiMo4,8-0,6 |
JS3030 |
3,0 - 3,6 |
4,5 - 5,1 |
≤ 0,5 |
0,4 - 0,8 |
≤ 0,07 |
≤ 0,02 |
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MECHANICAL PROPERTIES
| Description of the material |
Brinell hardness (1) |
Given values (1)(2) |
| Symbol |
Number |
HBS |
Yield strength 0,2 %
R p0,2
MPa |
Tensile strengthRm
MPa |
Minimal extension
A
% |
| GJSF-XSiMo4-0,6 |
JS3010 |
190 - 240 |
400 |
500 |
3 |
| GJSF-XSiMo4-1 |
JS3020 |
190 - 250 |
400 |
500 |
3 |
| GJSF-XSiMo4,8-0,6 |
JS3030 |
220 - 300 |
420 |
550 |
3 |
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(1) values at room temperature (2) Given values for test samples of a 5 mm Ø taken from the pieces complementary information on the mechanical and physical characteristicsMECHANICAL CHARACTERISTICS
| Description of the material |
Density |
Linear expansion coefficient 10-6K-1
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Thermal conductivity
W.m-1. K-1
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MOE longitunidal GPa
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| Symbol |
Number |
kg/m3 |
from 20 to 200 °C |
100°C |
400 °C |
at 20 °C |
| GJSF-XSiMo4-0,6 |
JS3010 |
6800 - 7000 |
11 to13 |
22 to 26 |
25 to 30 |
160 to 180 |
| GJSF-XSiMo4-1 |
JS3020 |
6800 - 7000 |
11 to 13 |
22 to 26 |
25 to 30 |
160 to 180 |
| GJSF-XSiMo4,8-0,6 |
JS3030 |
6800 - 7000 |
11 to 13 |
22 to 26 |
25 to 30 |
160 to 180 |
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Coercion necessary to cause a lengthening
| Description of the material |
Coercion necessary to cause a lengthening MPa
|
| Symbol |
Number |
from 0,01%/h
to 650°C |
from 0,001%/h
to 650°C |
from0,01%/h
to 705°C |
from 0,001%/h
to 705°C |
from 0,01%/h
to 815 °C |
from 0,001%/h
to 815 °C |
from 0,01%/h
to 850 °C |
from 0,001%/h
to 850 °C |
| GJSF-XSiMo4-0,6 |
JS3010 |
- |
- |
25 |
18 |
- |
- |
- |
- |
| GJSF-XSiMo4-1 |
JS3020 |
28 |
20 |
27 |
21 |
7 |
5 |
3,3 |
2 |
| GJSF-XSiMo4,8-0,6 |
JS3030 |
- |
- |
- |
- |
- |
- |
- |
- |
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FORCE NEEDED TO CAUSE A BREAK
| Description of the material |
Force needed to cause a break MPa |
| Symbol |
Number |
in 100h
at 540°C |
in 1000h
at 540°C |
in 100h
at 595 °C |
in1000h
at 595°C |
in 100h
at 650°C |
in 1000h
at 650°C |
in 10000h
at 650°C |
in 100h
at 705°C |
in 1000h
at 705 °C |
| GJSF-XSiMo4-0,6 |
JS3010 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| GJSF-XSiMo4-1 |
JS3020 |
150 |
100 |
88 |
62 |
43 |
35 |
8,3 |
23 |
23 |
| GJSF-XSiMo4,8-0,6 |
JS3030 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
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| Description of the material |
Force needed to cause a break MPa |
| Symbol |
Number |
en 100h
à 760°C |
en 1000h
à 760°C |
en 10000h
à
760°C |
en
100h
à
815°C |
en 1000h
à 815°C |
en 10000h
à
815°C |
en 1000h
à 850°C |
en 10000h
à
850°C |
en 100h
à
870°C |
en
1000h
à 870°C |
en
100h
à
925°C |
| GJSF-XSiMo4-0,6 |
JS3010 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| GJSF-XSiMo4-1 |
JS3020 |
20 |
9,2 |
5,3 |
9 |
5 |
2,9 |
3,3 |
1,8 |
- |
- |
- |
| GJSF-XSiMo4,8-0,6 |
JS3030 |
- |
- |
- |
- |
5,5 |
2,8 |
- |
- |
4,5 |
2 |
2 |
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MICROSTRUCTUREUnless there is a particular agreement, the microstructure of ferritic nodular iron with silicon-molybdenum must contain at least 85% of graphite particles V or VI according to NF EN ISO 945 excluding the presence of forms I and II The structure must contain at least 85 % of ferritic substances. The maximum level limit of carbides is 5% and they can be found as thin split nets.
Associated areas of activity
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