FGG15 is also a type of low material grade of grey cast iron in Belgium standard NBN 830-01, it is equal to cast iron EN-GJL-150 in standard EN 1561 by European.

This lower grade of grey iron is mainly used for applications where strength is not essential, such as counterweight, molded parts as well as precision castings.

We summarize the following chemical composition and mechanical properties for FGG15 grey cast iron according to EN-GJL-150 in standard EN 1561 of European.

The Chemical Composition of FGG15 (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:

Mechanical properties in separately cast test pieces with 30 mm as cast casting diameter

Only the tensile strength is the quality inspection standard. Other mechanical properties are only for reference unless the buyers have particular requirements.

Equivalent Grades of FGG15 (Belgium: NBN 830-01)

Besides EN-GJL-150 in standard EN 1561, this grade is also equivalent to the following grades:
ISO 185 – GRADE 150
GB 9439 - HT150 in China
ASTM A48 - Class 20, or 25 in USA
DIN 1691 – GG15 in Germany or Austria
JIS G5501 – FC150 in Japan
UNI 5007 - G15 in Italy
NF A32-101 – FGL150 in France
BS 1452 – 150 in UK
UNE - FG15 in Spain
AS 1830 - T150 in Australia
SS 14 01 – O115 in Sweden
NS11 100 - SJG150 in Norway

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