| Form |
ASTM |
| Rod |
B 335 |
| Plate, sheet and strip |
B 333, B 906 |
| Seamless pipe and tube |
B 622 |
| Welded pipe |
B 619, B 775 |
| Welded tube |
B 626, B 751 |
| Welding fitting |
B 366 |
| Forged or rolled pipe flange and forged fitting |
B 462 |
| Billet and bar for reforging |
B 472 |
| Forging |
B 564 |
Chemical composition
| % |
Ni |
Mo |
Fe |
Cr |
Co |
C |
Mn |
Si |
P |
S |
| min |
balance |
26.0 |
|
|
|
|
|
|
|
|
| max |
30.0 |
2.0 |
1.00 |
1.00 |
0.020 |
1.00 |
0.10 |
0.040 |
0.030 |
Physical properties
| Density |
9.22 g/cm3 |
| Melting range |
1330-1380℃ |
Features: 2.4617 has outstanding resistance to hydrochloric acid at all concentrations and temperatures. It also has significant resistance to reducing environments like sulfuric, phosphoric, acetic acids and other nonoxidizing media. 2.4617 has excellent resistance to pitting corrosion, stress corrosion cracking, and knife line and weld heat-affected zone attack. 2.4617 has poor resistance to oxidizing environments, therefore, it should not be used where ferric or cupric salts are present as these salts may cause rapid corrosion failure.
Applications: Equipment handling reducing chemical environments; and chemical process industry involving hydrochloric, sulfuric, phosphoric and acetic acids.
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