Gh4145
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Product name：
National standard grade
Material：
00Cr25Ni7Mo4WCuN（S32760）
Warehouse：
Tianjin
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Keyword：
Gh4145
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Details description
Basic Information
Material Name: GH4145, also known as GH145
Type: Precipitation Hardening Nickel-Based Superalloy
Similar Grades: Inconel X-750 (USA), NiCr15Fe7TiAl (Germany), NC15FeTNbA (France), NCF750 (Japan)
Implementation Standards: Q/3B 4088-1994 "GH4145 Alloy Capillary Material", Q/3B 4098-1995 "GH4145 Alloy Wire Material", Q/3B 4198-1993 "GH4145 Alloy Cold-Rolled Sheet and Strip Material"
Chemical Composition
Carbon (C): ≤0.08
Silicon (Si): ≤0.5 in bars, forgings, rings, and wire; ≤0.35 in sheets, strips, and tubes
Manganese (Mn): ≤1.0 in bars, forgings, rings, and wire; ≤0.35 in sheets, strips, and tubes
Phosphorus (P): ≤0.015
Sulfur (S): ≤0.01
Chromium (Cr): 14.0～17.0
Nickel (Ni): ≥70.0
Aluminum (Al): 0.40～1.00
Titanium (Ti): 2.25～2.75
Iron (Fe): 5.00～9.00
Niobium (Nb): 0.70～1.20
Copper (Cu): ≤0.5
Performance Characteristics
Physical Properties
Density: 8.25g/cm³
Melting Point: 1395～1425℃
Thermal Conductivity: 14.7W/(m・℃) at 50℃, 37.3 W/(m・℃) at 900℃
Coefficient of Linear Expansion: 16.2×10⁻⁶/℃ from 20℃ to 800℃
Resistivity: 1.22×10⁻⁶Ω・m at 50℃
Magnetic Properties: Non-magnetic
Mechanical Properties
Tensile Strength at Room Temperature: ≥950MPa
Yield Strength at Room Temperature: ≥550MPa
Elongation at Room Temperature: ≥15%
High-Temperature Strength: High strength below 800℃, good creep resistance below 700℃, and good stress-rupture resistance below 540℃
Process Properties
Hot Working Properties: Easily formed at forging temperatures between 1220～950℃. Heating temperature for ingot forging is 1200℃, and the final forging temperature is ≥950℃.
Cold Working Properties: Cold drawing and cold rolling can be performed, but the processing difficulty is relatively high, and appropriate process measures, such as intermediate annealing, are needed to eliminate work hardening.
Welding Properties: Good weldability, various welding methods such as TIG welding and electron beam welding can be used.
Product Specifications and Supply Forms
Supply Forms: Sheets, strips, bars, forgings, rings, wires, tubes, etc.
Product Specifications: The thickness of sheets and strips is generally between 0.2mm and 10.0mm; the diameter of bars can be customized according to needs, the common diameter range is 5.0mm-200.0mm; the outer diameter of tubes is generally less than 5.0mm, and the wall thickness is less than 0.5mm; the diameter of welding wire is generally between 0.2mm and 1.5mm.
Application Fields
Aerospace: Used to manufacture rings, structural parts, bolts, etc., operating below 800℃ in aero-engines, and flat wave springs, circumferential helical springs, helical compression springs, spring clips, and sealing rings, etc., operating below 540℃.
Energy: Such as nuclear reactor components in nuclear power generation, and high-temperature components in gas turbine power generation, such as turbine blades and combustion chambers.
Petrochemical: Used to manufacture corrosion-resistant pipelines, valves, pump bodies, and other equipment, capable of withstanding corrosion from acidic, alkaline, and saline media.
Qualification certification
Corporate video
Seamless steel pipe manufacturing
3PE anti-corrosion pipe manufacturing
Spiral steel pipe manufacturing
Application fields
Petrochemicals
Petrochemicals
Aerospace
Aerospace
Energy equipment
Energy equipment
Oil/gas/water pipelines
Oil/gas/water pipelines
Building construction
Building construction
Dredging & piling works
Dredging & piling works
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