GH2132 High-Temperature Alloy Bar

GH2132 alloy bar, a Fe-Ni-Cr-based precipitation-hardening superalloy, exhibits the following three key performance characteristics:

1. Excellent high-temperature strength and creep resistance: Under long-term service below 650°C, the bar maintains strengths of Rm ≥ 950 MPa and Rp0.2 ≥ 680 MPa through γ′ phase (Ni₃(Ti,Al)) aging strengthening and Mo solid solution strengthening, while exhibiting significantly lower creep rates than comparable alloys.

2. Excellent corrosion and oxidation resistance: A 13.5–16% Cr content forms a dense Cr₂O₃ protective film, which resists sulfiding environments (such as cyclic oxidation at 1100°C) and hot corrosion, extending component life.

3. Excellent processing and weldability: The bar can be formed through processes such as cold drawing and hot rolling, and exhibits stable weldability, making it suitable for the manufacture of complex structural components.

GH2132 alloy bars are widely used in high-temperature, load-bearing components in the aviation, energy, and petrochemical sectors:
1. Aircraft engines: Used in compressor discs, fasteners, and other components. Its high strength and fatigue performance below 650°C meet demanding operating conditions.

2. Gas turbines: Used in turbine discs and casing supports. Its creep resistance ensures long-term stability.

3. Petrochemical equipment: Used in furnace tubes and heat exchangers, its resistance to sulfidation corrosion surpasses that of conventional alloys.

Through optimized composition and process control (such as vacuum melting to reduce impurities), this alloy bar achieves a balance of strength, corrosion resistance, and processability, making it the material of choice for critical high-temperature components.