2.4952 | NiCr20TiAl | Alloy 80A | UNS N07080 | BS NA20 | GL2
2.4952 | NiCr20TiAl | Alloy 80A | UNS N07080 | BS NA20 | GL2
This nickel alloy is available from stock.
Please send enquiries to:
- Lothar Wendt
- phone: +49 (2133) 2706-28
- email: [email protected]
VALBRUNA GRADE
GL2
STEEL TYPE
High temperature Alloys
Profil shapes
- Round EN 10060 / EN 10278
- Flat EN 10058 / EN 10278
- Square EN 10059 / EN 10278
- Hexagonal EN 10278
- Angle EN 10056
- Bar steel, bright steel, wire, wire rod, billets, ingots, semi-finished products
Description of material
GL2 is an age-hardening Nickel – Chromium – Titanium – Aluminum alloy designed for temperatures up to 820°C and provides a high corrosion resistance with high strength obtained by precipitation hardening heat treatment. This grade is normally produced by the ESR steelmaking process.
Applications
Exhaust valves for gasoline and diesel internal combustion engines where a high temperature strength and corrosion resistance to engine combustion products are needed. GL2 should be primarily used for exhaust valves operating in severe thermal and mechanical conditions and in corrosion environments where other Mn-N valve grades couldn’t supply suitable performance. Other applications: die casting, die forging, blades, bolting for turbine, discs forging and fixture/devices for service at 800°C temperature.
Designations
| Commercial name | Alloy 80A |
| International Designation | NiCr20TiAl |
| W.N. | 2.4952 |
| UNS | N07080 |
| BS | NA20 |
Chemical composition
| Chemical element | C | Mn | Si | S | P | Ni | Cr | Fe | Cu | Ti | Al | Co | B |
| Minimum value % | 0,04% | - | - | - | - | 65% | 18% | - | - | 1,8% | 1% | - | - |
| Maximum value % | 0,1% | 1% | 1% | 0,015% | 0,02% | - | 21% | 3% | 0,2% | 2,7% | 1,8% | 1% | 0,008% |
Mechanical properties
| Condition | Subtype | Rm [N/mm²] | Rm [Ksi] | Rp0,2% [N/mm²] | Rp0,2% [Ksi] | E4d [%] |
| Hot Worked - Solution Annealed | HW - A | 1000 max | 145 max | - | - | 18 min |
| Hot Worked - Solution Annealed and Aged | HW - A+PH | 1000 min | 145 min | 600 min | 87 min | 12 min |
| Hot Worked - Solution Annealed - Stabilized - Aged | HW - A+H+PH | 930 min | 135 min | 620 min | 90 min | 20 min |
| Cold Worked - Solution Annealed | CW - A | 1000 min | 145 min | 620 min | 90 min | 12 min |
| Cold Worked - Solution Annealed - Stabilized - Aged | CW - A+H+PH | 1000 min | 145 min | 620 min | 90 min | 12 min |