| modulo |
ASTM |
| Asta |
B 581 |
| Piatto, foglio e striscia |
B 582 |
| Tubo e tubo senza saldatura |
B 622 |
| Tubo saldato |
B 619, B 775 |
| Tubo saldato |
B 626, B 751 |
| Raccordo per saldatura |
B 366 |
| Flangia e raccordo forgiati forgiati o laminati |
B 462 |
| Billette e bar per riforgiare |
B 472 |
Composizione chimica
| % |
Ni |
Cr |
Fe |
Mo |
W |
Co |
C |
Mn |
Si |
P |
S |
Cu |
Nb + Ta |
| verbale |
equilibrio |
28.0 |
13.0 |
4.0 |
1.5 |
|
|
|
|
|
|
1.0 |
0.30 |
| max |
31.5 |
17.0 |
6.0 |
4.0 |
5.0 |
0.030 |
1.5 |
0.80 |
0.040 |
0.020 |
2.4 |
1.50 |
Proprietà fisiche
| Densità |
8.22 g / cm3 |
| Intervallo di fusione |
1370-1400 ℃ |
Caratteristiche: Hastelloy G-30 is a high chromium nickel-base alloy which has superior corrosion resistance over most other nickel and iron-base alloys in commercial phosphoric acid as well as many complex environments containing highly oxidizing acids such as nitric/hydrochloric, nitric/hydrofluoric and sulfuric acids. It resists the formation of grain boundary precipitates in the heat-affected zone, making it suitable for use in most chemical process environments in the as-welded condition.
Applicazioni: Chemical processing involving phosphoric acid, sulfuric acid and nitric acid; nuclear fuel reprocessing; nuclear waste processing; pickling operations; petrochemical; fertilizer manufacture; pesticide manufacture; and gold ore extraction.
Janet Chang 
