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NF A32 - 201 1997 Standard for Ductile Cast Iron
We met the FGS degrees from Franch and
Italy clients, but it is very difficult
to find the standard NF A32-201 from
internet. We found they are similar with
China standard GB T1348 1998, so we
modified the GB T1348 into NF A32 - 201
1997 according to our understanding.
Therefore, the following main content is
not real NF A32-201 standard. We just
made it for your reference.
This standard is similar with the other
standards for nodular iron such as
ASTM A536
in USA, GB
T1348 in China,
KS D4302
in Korea, DIN
1693 in Germany and
ISO 1083.
Mechanical properties and microstructure of Cast integral test bar of ductile cast iron
|
Grade |
Tensile strength
σb≥/MPa |
Yield strength
σ0.2≥/MPa |
Elongation
δ5≥(％) |
Hardness
HBS |
Main microstructure |
|
FGS370-17 |
370 |
220 |
17 |
130~180 |
ferrite |
|
FGS400-12 |
400 |
250 |
12 |
130~180 |
ferrite |
|
FGS500-7 |
500 |
320 |
7 |
170~230 |
ferrite＋perlite |
|
FGS600-2 |
600 |
370 |
2 |
190~270 |
perlite＋ferrite |
|
FGS700-2 |
700 |
420 |
2 |
225~305 |
perlite |
|
FGS800-2 |
800 |
480 |
2 |
245~335 |
perlite or tempered structure |
Mechanical properties and microstructure of attached test bar of ductile cast iron
|
Grade |
Thickness
/mm |
Tensile strength
σb≥/MPa |
Yield strength
σ0.2≥/MPa |
Elongation
δ5≥(％) |
Hardness
HBS |
Main microstructure |
|
FGS370-17 |
>30~60
>60~200 |
390
370 |
250
240 |
17
11 |
130~180 |
ferrite |
|
FGS400-12 |
>30~60
>60~200 |
390
370 |
250
240 |
12
7 |
130~180 |
ferrite |
|
FGS500-7 |
>30~60
>60~200 |
450
420 |
300
290 |
7
5 |
170~240 |
ferrite＋perlite |
|
FGS600-2 |
>30~60
>60~200 |
600
550 |
360
340 |
2
1 |
180~270 |
perlite＋ferrite |
|
FGS700-2 |
>30~60
>60~200 |
700
650 |
400
380 |
2
1 |
220~320 |
perlite |
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