FGG30 is a type of high material grade of grey cast iron in Belgium standard NBN 830-01, it is equivalent to EN-GJL-300 in European standard EN 1561.
We summarize the following chemical composition and mechanical properties for FGG30 grey cast iron according to EN-GJL-300 in European standard EN 1561.
The Chemical Composition of FGG30 (Belgium: NBN 830-01)
In any standard, the chemical composition to this grade were not mandatory, they allow iron casting manufacturers to adjust the chemical composition according to the production conditions, as long as the manufacturers could meet the mechanical properties.
The normal chemical composition for this grade is as the following:
C |
Si |
Mn |
S |
P |
3 - 3.2 |
1.3 – 1.9 |
0.7 - 1 |
max 0.12 |
max 0.2 |
Mechanical properties in separately cast test pieces with 30 mm as cast casting diameter
Characteristic |
SI-unit |
Material designation |
FGG30 (Belgium: NBN 830-01) |
Basic structure |
Pearlitic |
Tensile strength |
N/mm2 |
300 to 400 |
0,1% proof stress |
N/mm2 |
190 to 260 |
Elongation |
% |
0,8 to 0,3 |
Compression strength |
N/mm2 |
960 |
0,1% compression yield point |
N/mm2 |
390 |
Bending strength |
N/mm2 |
390 |
Shear strength |
N/mm2 |
345 |
Torsional strength |
N/mm2 |
345 |
Modulus of elasticity |
kN/mm2 |
108 to 137 |
Poisson’s ratio |
- |
0,26 |
Bending fatigue strength |
N/mm2 |
140 |
Fatigue limit under reversed tension-compression stresses |
N/mm2 |
75 |
Fracture toughness |
N/mm3/2 |
560 |
Only the tensile strength is the quality inspection standard. Other mechanical properties are only for reference unless the buyers have particular requirements.
Applications for FGG30 (Belgium: NBN 830-01) Gray Cast Iron:
Cheeks for machine tools, large pump and turbine housings, castings for diesel engines, large gearwheels and flywheels, hydraulic castings, valves etc.
Worldwide equivalents of grade FGG30 (Belgium: NBN 830-01):
Belgium
NBN |
EU
EN |
USA
- |
Germany
DIN,WNr |
Japan
JIS |
France
AFNOR |
England
BS |
Italy
UNI |
Spain
UNE |
FGG30 |
EN-GJL-300 (EN-JL1050) |
CLASS40
CLASS45 |
0.6030
GG30 |
FC300 |
FGL300
Ft30D |
300
Grade300 |
G30 |
FG30 |
China
GB |
Sweden
SS |
Bulgaria
BDS |
Hungary
MSZ |
Poland
PN |
Romania
STAS |
Austria
ONORM |
Australia
AS |
HT3-54
HT300 |
01-30-00
0130 |
Vch30 |
OV30 |
Z130 |
FC300 |
GG30 |
T300 |
Norway
NS |
Russia
GOST |
Inter
ISO |
India
IS |
Netherlands
NEN |
Taiwan
- |
Luxembourg
- |
COPANT
- |
SJG300 |
SCH30 |
300
JL300 |
FG300 |
GG30 |
FC300 |
FGG30 |
FG300 |
|
