NAS601； Ni Base Heat/Oxidation Resistant Alloy
Characteristics of NAS 601
A nickel base alloy also containing chromium and aluminum, NAS 601 (NCF 601, UNS N06601), comparable to alloy 601, is resistant at high temperatures, and has powerful resistance to oxidation, carburization and sulfurization. It excels particularly in exfoliation resistance in repeated oxidation applications with a high temperature variation, and is therefore used in various parts for heat treatment furnaces, diesel vehicle glow plugs and the like.
Chemical composition
(%)
| - | C | Si | Mn | P | S | Ni | Cr | Cu | Al |
| JIS G4902 NCF601 |
≦0.10 | ≦0.50 | ≦1.00 | ≦0.030 | ≦0.015 | 58.00～ 63.00 |
21.00～ 25.00 |
≦1.00 | 1.00～ 1.70 |
| NAS 601 | 0.03 | 0.20 | 0.50 | 0.005 | 0.001 | 59.8 | 22.4 | 0.02 | 1.30 |
Corresponding Standard
Corresponding standards are as follows;
ASTM B168 / UNS N06601
ASME SB168 / UNS N06601
SAE AMS 5870
JIS G4902 / NCF601
Mechanical Properties
| Grade | 0.2% Proof stress (MPa) |
Tensile strength (MPa) |
Elongation （％） |
Vickers's hardness (HV) |
| JIS G4902 / NCF601 | ≧195 | ≧550 | ≧30 | - |
| NAS 601 | 385 | 763 | 40 | 197 |
Oxidation Resistance
Cyclic oxidation test results at 1000℃ in air.
Cyclic oxidation test results at 1100℃ in air.
One cycle: 30 minutes at test temperature followed by 10 minutes cooling
