GH3030
GH3030 solid solution strengthened superalloy is an early developed 80Ni-20Cr solid solution strengthened superalloy with simple chemical composition, satisfactory thermal strength and high plasticity below 800°C, and good resistance to oxidation, thermal fatigue, Cold stamping and welding process performance. The alloy becomes single-phase austenite after solid solution treatment, and the structure is stable during use.
Content
Content
Chemical composition of GH3030(%)
| Element | Minimum (%) | Maximum (%) |
|---|---|---|
| Ni | Balance | Balance |
| Cr | 19 | 22 |
| Fe | – | 1.5 |
| C | – | 0.12 |
| Mn | – | 0.7 |
| Si | – | 0.8 |
| S | – | 0.02 |
| P | – | 0.03 |
| Al | – | 0.15 |
| Ti | 0.15 | 0.35 |
Physical properties of GH3030
| Property | Value |
|---|---|
| Density | 8.4 g/cm³ |
| Melting Point | 1374-1420 °C |
| Thermal Conductivity | 15.1 W/m·K (at 100°C) |
| Specific Heat Capacity | 565.2 J/kg·K |
| Modulus of Elasticity | 224Gpa |
| Electrical Resistivity | 1.09 µΩ·m |
| Coefficient of Thermal Expansion | 12.8 x 10⁻⁶ /°C (20-100°C) |
Mechanical properties of GH3030 alloy
| Property | Value |
|---|---|
| Tensile Strength | ≥785Mpa |
| Elongation | ≥35% |
Applications of GH3030
(1) Mainly used for turbine engine combustion chamber components operating below 800°C
(2) Other high-temperature parts that require oxidation resistance below 1100 ℃ but bear small load
(3) Used to make a mobile firing frame in the enamel furnace
(4) GH3030 has strong hot and cold processing properties and is used to make various chemical equipment and supporting accessories.
