Como grado superior de AISI 321H, la corrosión intergranular de 347H se logra mediante el uso de niobio (Nb) como un elemento estabilizador para maximizar esta característica. SS 347 tiene un buen rendimiento de soldadura de propiedades mecánicas, excelente resistencia a la corrosión intergranular.
Tuberías de acero inoxidable 347H Composición química según ASTM A312, ASTM A269, ASTM A213
|
Calificación |
C |
Minnesota |
P |
S |
Si |
Ni |
Cr |
Nótese bien |
Peso % |
|
347 |
9.00 |
17.00 |
10C |
Min. |
|||||
|
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
13.00 |
19.00 |
1.00 |
Max. |
|
|
347H |
0.04 |
11.00 |
18.00 |
8C |
Min. |
||||
|
0.10 |
2.00 |
0.045 |
0.03 |
1.00 |
15.00 |
20.00 |
1.00 |
Max. |
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