No.
|
País
|
Fundición de hierro
|
El hierro dúctil
|
Acero inoxidable 304
|
Acero inoxidable 316
|
1
|
China
|
HT250
|
QT500-7
|
0CR18Ni9
|
0CR17Ni12Mo2
|
2
|
Ee. Uu.
|
NO. 35
|
70-50-05
|
SS304
|
SS316
|
3
|
Japón
|
FC250
|
FCD500
|
SUS304
|
SUS316
|
4
|
Alemania
|
GG25
|
GGG50
|
X5CrNi18.9
|
X5CrNiMo18.10
|
5
|
Italia
|
El G25
|
GS500-7
|
|
|
6
|
Francia
|
FGL250
|
FGS500-7
|
Z6CN18.09
|
Z6cde17.12
|
7
|
La norma ISO
|
250
|
500-7
|
11
|
20, 20un
|