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FGL350 is a high material grade of gray cast iron used in France by standard NF A32-101. It is also known as grade 350 (ISO 185), GG35 (DIN 1691) and EN-GJL-350 (EN 1561).
Application for NF A32-101 FGL350 Gray Cast Iron:
FGL350 gray cast iron used for machine and apparatus pieces with increasing physical properties, for work things machines, compressors.
Chemical Composition for NF A32-101 FGL350 Gray Cast Iron:
There is no any requirement about chemistry in the NF A32-101 standard. The iron foundries could adjust the chemical components according to their own experience, as long as their material could meet the mechanical properties. The following chemical composition for FGL350 gray cast iron is just for your reference.
C |
Si |
Mn |
P |
S |
2.9-3.0% |
1.2-1.5% |
0.7-1.1% |
P ≤ 0.20% |
S ≤ 0.12% |
Technological and physical values:
The followings are the technical and physical values for gray cast iron EN-GJL-350, which should be equivalent to FGL350
Item according to DIN EN 1561 |
Measure |
Unit |
EN-GJL-350 |
Equal to NF A32-101 |
|
|
FGL350 |
Tensile Strength |
Rm |
MPA |
350-450 |
0.1% Yield Strength |
Rp0,1 |
MPA |
228-285 |
Elongation Strength |
A |
% |
0,3 – 0,8 |
Compressive Strength |
σdB |
MPa |
1080 |
0,1% Compressive Strength |
σd0,1 |
MPa |
455 |
Flexural Strength |
σbB |
MPa |
490 |
Schuifspanning |
σaB |
MPa |
400 |
Shear Stress |
TtB |
MPa |
400 |
Modules of elasticity |
E |
GPa |
123 – 143 |
Poisson number |
v |
– |
0,26 |
Brinell hardness |
|
HB |
210 – 250 |
Ductility |
σbW |
MPa |
145 |
Tension and pressure change |
σzdW |
MPa |
85 |
Breaking Strength |
Klc |
N/mm3/2 |
650 |
Density |
|
g/cm3 |
7,30 |
Casting involved mechanical properties:
The following mechanical properties are for gray cast iron EN-GJL-350, which should be equivalent to FGL350.
Item according to DIN EN 1561 |
Tensile Strength cast in apart test piece [MPa] |
Wall thickness [mm] |
Tensile Strength in moded test piece
[MPa] Min. |
Expectation Values in the casting |
from |
to |
Tensile Strength [MPa] min. Values |
Brinell hardness [HB] Max. Values |
EN-GJL-350 |
350 – 450 |
10
20
40
80
150 |
20
40
80
150
300 |
–
290
260
230
210 |
315
280
250
225
– |
275
260
240
225
215 |
Worldwide equivalents of grade FGL350 (NF A32-101 ) Gray Cast Iron
EU
EN |
USA
- |
Germany
DIN,WNr |
Japan
JIS |
France
AFNOR |
England
BS |
Italy
UNI |
Belgium
NBN |
EN-GJL-350 (EN-JL1060) |
50 |
0.06035
GG35 |
FC350 |
FGL350 |
350 |
G35 |
FGG35 |
Spain
UNE |
China
GB |
Sweden
SS |
Bulgaria
BDS |
Hungary
MSZ |
Poland
PN |
Romania
STAS |
Austria
ONORM |
FG35 |
HT350 |
0135 |
Vch35 |
OV35 |
Z135 |
FC350 |
GG35 |
Australia
AS |
Russia
GOST |
Inter
ISO |
India
IS |
Netherlands
NEN |
Luxembourg
- |
COPANT
- |
T350 |
SCH35 |
350
JL350 |
FG350 |
GG35 |
FGG35 |
FG350 |
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