OCr15Al5,1Cr13Al4, 0Cr21Al4, 0Cr21Al6, 0Cr23Al5, 0Cr25Al5, 0Cr21Al6Nb,0Cr27Al7Mo2, and etc. | Alloy Nomenclature Performance | 1Cr13Al4 | 0Cr21Al4 | 0Cr23Al5 | 0Cr25Al5 | 0Cr21Al6 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Main Chemical composition | Cr | 12.0-15.0 | 18.0-21.0 | 21.5-23.5 | 23.0-26.0 | 19.0-22.0 | 21.0-23.0 | 26.5-27.8 |
| Al | 4.0-6.0 | 3.0-4.2 | 4.2-5.3 | 4.5-6.5 | 5.0-7.0 | 5.0-7.0 | 6.0-7.0 | |
| Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune | |
| Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| Max. continuous service temp. of element(°C) | 950 | 1100 | 1250 | 1250 | 1250 | 1350 | 1400 | |
| Resistivity at 20ºC(μΩ·m) | 1.25 | 1.23 | 1.35 | 1.42 | 1.42 | 1.45 | 1.53 | |
| Density(g/cm3) | 7.4 | 7.35 | 7.25 | 7.1 | 7.16 | 7.1 | 7.1 | |
| Thermal conductivity(KJ/m·h·ºC) | 52.7 | 46.9 | 60.2 | 46.1 | 63.2 | 46.1 | -- | |
| Coefficient of lines expansion(α×10-6/ºC) | 15.4 | 13.5 | 15 | 16 | 14.7 | 16 | 16 | |
| Melting point approx.( ºC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Tensile strength(N/mm2) | 580-680 | 600-700 | 637-784 | 630-780 | 630-780 | 650-800 | 686-784 | |
| Elongation at rupture(%) | >16 | >14 | >12 | >12 | >12 | >12 | >12 | |
| Variation of area(%) | 65-75 | 65-75 | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | |
| Repeat Bending frequency(F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
| Hardness(H.B.) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| continuous service time(Hours/ ºC) | -- | ≥80/1250 | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥50/1350 | ≥50/1350 | |
| Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
