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Introduction
GH3044(GH44) is a single-phase austenite-type solid solution strengthening alloy, below 800℃ with moderate thermal strength and good thermal fatigue properties, 1000℃ below the good oxidation resistance. Long-term use of tissue stability, but also has good cold formability and welding performance. Suitable for long-term use of 850℃ below the aero-engine combustion chamber and afterburner parts.
Chemical components(%)
Composition | C | Si | Mn | P | S | Cr | Fe | Mo | Al | W | Ti | Cu |
Min | \ | \ | \ | \ | \ | 23.50 | \ | \ | \ | 13.00 | 0.30 | \ |
Max | 0.10 | 0.80 | 0.50 | 0.013 | 0.013 | 26.50 | 4.00 | 1.50 | 0.50 | 16.00 | 0.70 | 0.25 |
Mechanical properties
Rigidity | Tensile strength | Yield strength | Elongation |
85-100B | ≥930MPa | ≥620MPa | ≥25% |
Physical properties
Density | Melting points | Specific heat | Magnetism | Resistivity | Thermal conductivity | Linear expansivity |
8.26g/cm3 | 1345-1390℃ | 420J/(Kg.℃) | \ | 1.099×10-6Ω·m (20℃) | 12.9W/(m.k) (100℃) | 13.9×10-6/K (20-1000℃) |
Specification:
Product type | Products | Dimension | Processes | Deliver Status |
Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
Advantages
(1)High temperature strength:GH3044 has excellent strength and creep resistance at high temperatures and can maintain high strength in high temperature environments.
(2)Oxidation resistance:GH3044 alloycan be used stably for a long time in high temperature, high pressure and counter environments.
(3)Corrosion resistance:GH44 can be used stably for a long time in complex industrial environments.
(4)High strength and high hardness:GH3044 alloycan withstand the huge pressure in working environments such as high pressure, high temperature and high speed.
(5)Processing performance:Although GH44 is a difficult-to-process material, its processing performance can be improved through reasonable process design and appropriate heat treatment.
(6)Thermal stability:GH3044 maintains good physical properties and structural stability at high temperatures.
(7)Thermal fatigue resistance:GH44 alloycan operate safely for a long time in high temperature cycle fatigue environment.
(8)Creep resistance:GH3044can maintain stable mechanical properties under high load and high temperature environments.
Applications
Aerospace field:GH3044 alloy is widely used in high-temperature components of aerospace engines, such as turbine blades, combustion chambers, gas turbines, etc.
Chemical industry:In the chemical industry,GH44 alloy can be used to manufacture high-temperature furnace tubes, catalyst carriers, reactors and other equipment.
Nuclear industry:GH3044 alloy can be used to manufacture key components such as fuel elements and fuel cladding of nuclear reactors.
Petrochemical industry:GH3044 alloycan be used to manufacture high-temperature furnace tubes, catalyst carriers, reactors and other equipment.
Other fields:In addition to the above application fields, GH3044 alloy can also be used to manufacture high-temperature stoves, heating elements, ship engines, etc.
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