Introduction
GH4033(GH33) is a high-temperature alloy, nickel-chromium as the matrix, adding aluminum, titanium to form γ, phase dispersion strengthening alloy, at 700~ 750 ℃ with sufficient high-temperature strength, below 900 ℃ has good oxidation resistance. The alloy, good heating performance, the main supply hot-rolled rods and blanks, used in engine rotor parts.
Chemical components Chemical element composition content(%)
Composition | C | Si | Mg | P | S | Cr | Ti | Ni | Mo | Al | Cu | Nb |
Min | \ | \ | \ | \ | \ | 19.00 | 0.60 | 55.00 | 9.00 | 2.00 | \ | \ |
Max | 0.05 | 0.50 | 0.015 | 0.015 | 0.015 | 22.00 | 1.20 | 59.00 | 10.00 | 2.50 | 0.03 | 0.03 |
Mechanical properties
Rigidity | Tensile strength | Yield strength | Elongation |
≤310 | ≥960MPa | ≥670MPa | ≥15% |
Physical properties
Density | Melting points | Specific heat | Magnetism | Resistivity | Thermal conductivity | Linear expansivity |
8.19g/cm3 | 1345-1380℃ | 377J/(Kg.℃) | \ | 1.33μΩ·m(20℃) | 11.8W/(m.k)(100℃) | 11.27×10-6/K(20-100℃) |
Advantages
(1)High temperature strength:GH4033 can maintain sufficient high temperature strength in the temperature range of 700℃ to 750℃, which is suitable for applications that need to withstand high temperature loads.
(2)Oxidation resistance:Below 900°C, GH4033 shows good oxidation resistance, which can effectively resist oxidative corrosion at high temperatures and extend its service life.
(3)Processing performance:GH4033 alloy has good heating processing properties and is suitable for hot rolling into bars and disc billets for further processing and manufacturing.
Applications
(1)Aerospace field: engine parts, turbine blades and other parts
(2)Chemical industry:
(3)Nuclear industry:nuclear reactor pressure vessels, nuclear fuel cladding and other fields
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