Gh5188
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Product name：
Tantalum, niobium, tungsten, molybdenum, nickel
Material：
Pure nickel N4
Warehouse：
Tianjin
Surface treatment：
Keyword：
Gh5188
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Details description
Basic Information
Grade: GH5188, also known as GH188.
Standards: GB/T 14992, GJB 3317A, HB/Z 140, etc.
Similar Grades: Haynes Alloy No.188 (HA188), UNSR30188 (USA), KCN22W (France).
Chemical Composition
Carbon (C): 0.05-0.15
Silicon (Si): 0.2-0.5
Manganese (Mn): ≤1.25
Phosphorus (P): ≤0.02
Sulfur (S): ≤0.015
Chromium (Cr): 20-24
Nickel (Ni): 20-24
Lanthanum (La): 0.03-0.12
Nitrogen (N): No clear specification
Copper (Cu): ≤0.07
Iron (Fe): ≤3.00
Boron (B): ≤0.015
Tungsten (W): 13-16
Cobalt (Co): Balance
Performance Characteristics
Physical Properties
Density: 9.09g/cm³
Melting Point: 1300-1360℃
Magnetic Properties: Non-magnetic
Thermal Conductivity: 12.23-29.06W/(m・K) in the range of 200℃ to 900℃
Resistivity: 1.051-1.213Ω・mm²/m in the range of 20℃ to 900℃
Specific Heat Capacity: 208-588J/(kg・K) in the range of 100℃ to 900℃
Coefficient of Thermal Expansion: 15.7×10⁻⁶/K in the range of 20℃ to 900℃
Mechanical Properties
Tensile Strength: ≥860MPa (room temperature)
Yield Strength: ≥380MPa (room temperature)
Elongation: ≥45% (room temperature)
Creep Performance: At 927℃, σ/MPa is 166MPa, t/h is 23 hours
Process Properties
Weldability: Good weldability, various welding processes can be used, among which TIG welding has the best effect, with less reduction in joint strength and plasticity.
Cold and Hot Working Plasticity: It has good cold and hot working plasticity, which is easy to process into various shapes of parts.
Product Specifications and Supply Form
Supply Form: Plates, strips, bars, forgings, wires, precision castings, etc.
Product Specifications: Cold-rolled thin plates with δ0.5-4mm, hot-rolled medium plates with δ4-14mm, cold-rolled strips with δ0.05-0.8mm, and various sizes of bars, forgings, welding wires and precision castings are supplied.
Application Fields
Aerospace: Used to manufacture high-temperature components such as combustion chamber flame tubes, guide vanes, turbine disks, and combustion chamber casings for aero-engines.
Energy: It can be used in heat exchangers, combustion chambers and other components of high-end energy equipment such as gas turbines and nuclear reactors.
Chemical Industry: Widely used in reactors, heat exchangers, pipelines and other key equipment in the petrochemical and coal chemical industries.
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