UNS NO7041 is also known as GH4141,R41,Carpenter 41
UNS NO7041 is precipitate-hardened nickel based deformation superalloy with high tensile strength, permanent creep strength and good oxidation resistance in the range of 650 ~ 950℃. Due to the high content of aluminum, titanium and molybdenum in the alloy, it is difficult for ingot formation, but the deformed material has good plasticity. It can be cold formed or welded in the annealing state and the strain aging cracks are easy to occur during the welded parts heat treatment. It is mainly used in the manufacture on the heating surface components of various gas turbine, industrial furnace and etc equipment , such as burner tube plate and collecting box, hot gas duct and flue pipe.
Process Performance and Requirements
Vacuum Induction Furnace(VIM) and Electroslag Remelting Furnace(ESR)
- Product Chemical Composition
| Alloy | % | C | Cr | Co | Mo | Al | Ti | Fe | B | Zr |
| GH4141 | Min | 0.06 | 18 | 10 | 9 | 1.4 | 3 | | 0.003 | |
| Max | 0.12 | 20 | 12 | 10.5 | 1.8 | 3.5 | 5 | 0.01 | 0.07 |
| % | S | Mn | P | Cu | Pb① | Bi① | Sn① | As① | Sb① |
| Min | | | | | | | | | |
| Max | 0.015 | 0.5 | 0.015 | 0.5 | 0.001 | 0.0001 | 0.0012 | 0.0025 | 0.0025 |
- Product Physical Property
| Density | ρ=8.27g/cm3 |
| Melting Point | 1316～1371℃ |
- Heat Treatment Technology
(1)When the parts are required to have high tensile strength and fatigue performance at low temperature,it is recommended to use 1080℃, air cooling +760℃, 16h, air cooling
(2)For working at high temperature and requiring material to have high thermal strength, the appropriate heat treatment specification is 1180℃, air cooling +900℃, 4h, air cooling.
(3)For ring parts and etc parts that require welding, it is recommended to use 1120℃, 30min, air cooling +900 ℃, 4h, air cooling.
| Cold-drawn Wire | ¢0.3~¢18mm(Delivery in rolls or trays) |
| Hot-Rolling Wire | ¢5.5~¢20mm(Delivery in rolls) |
| Strip | thickness 0.1~4.5*width 6~350mm(Supply in rolls or straight strips) |
| Smooth Forged Rod on a Lathe | ¢60~350mm,L800-2500mm |
| Hot-rolled Burnishing | ¢20~80mm,L1000-5000mm |
| Cold Drawn and Burnishing | ¢2.5~18mm,L1000-8000mm |
| Seamless Tube | ¢1~275mm,wall thickness 0.2~30,L1000-8000mm |
