GH4049
Description
Étendue de la fourniture pour le groupe Aviation
Pièces forgées, barres rondes, plaques d'acier, anneaux, tuyaux sans soudure, plaques d'acier/courroies d'acier, matériaux de soudage par fil, n'hésitez pas à nous contacter !
1. Introduction to GH4049 Materials
GH4049 alloy is a Ni-Co-Cr-based precipitation hardened deformation high-temperature alloy, used at below 950 degrees Celsius. This alloy has good oxidation resistance below 1000 degrees Celsius and has a high high temperature strength below 950 degrees Celsius. Compared with nickel-based alloys of similar purposes, the alloy has poor thermal processing plasticity. It can improve its processing plasticity after electroslag remelting or vacuum arc remelting. This alloy is suitable for the manufacture of gas turbine blades with operating temperatures between 850-950°C.
Materials Technical Standards
GB/T14992 Classification and grade of high-temperature alloys and intermetallic compounds
GB/T14993 Specification for hot rolled rods for rotating components
GJB1953A Specification for hot rolled bars for high-temperature alloys for rotating parts of aircraft engines
HB/Z140 Aviation high-temperature alloy heat treatment process
2. Chemical composition of GH4049
| alliage | % | C | Cr | En | Al | De | V | W | Mo | Fe | cerium
Ce |
B | S | P | Et | Mn |
| Gh4049/gh49 | Valeur minimale | – | 9.50 | marge | 3.7 | 1.4 | 0.200 | 5.0 | 4.5 | – | – | – | – | – | – | – |
| Valeur maximale | 0.10 | 11.0 | 4.4 | 1.9 | 0.500 | 6.0 | 5.5 | 1.50 | 0.020 | 0.025 | 0.010 | 0.10 | 0.50 | 0.50 |
3. GH4049 physical properties
| densité | g / cm3 | 8.44 |
| Point de fusion | ℃ | 1320-1390 |
| Magnetic performance | Alloy is non-magnetic |
Minimum value of mechanical properties of GH4049 alloy at room temperature:
| Statut de l'alliage | résistance à la traction | Limite d'élasticité RP0,2 N/mm |
Élongation | Dureté Brinell |
| Rm N/mm | A5 % | HB | ||
| État de fusion solide | ≥570 | ≥275 | ≥8.0 | ≤363 |
4. GH4049 application fields
GH4049 is suitable for gas turbine working blades with operating temperatures of 850-950℃, and this is the most widely used.
Used to manufacture aircraft engine turbine blades and other high-temperature bearing workpieces.
Forgings can be used to manufacture structural parts for marine gas engines and military equipment.
