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Inconel X-750 (UNS N07750 / W.Nr. 2.4669, equivalent to China Grade GH4145) is a precipitation-hardenable nickel-chromium-iron superalloy strengthened by the precipitation of the gamma prime [γ′—Ni₃(Al, Ti, Nb)] phase. Its defining advantages are high tensile strength up to 815°C and exceptional stress relaxation resistance in the 540°C–650°C range, making it the industry standard for aircraft engine fasteners, gas turbine components, and high-temperature springs. Shanghai COCESS Special Alloys Co., Ltd operates as a direct manufacturer and wholesale supplier, eliminating intermediary markups to offer Inconel X-750 at competitive factory prices with full EN 10204 3.1 certification.
Certified Chemical Composition & Mechanical Baseline
Factory-direct does not mean compromised quality. Every heat is spectrographically verified to meet ASTM B637 and AMS specifications:
Chemical Composition (wt.%): Ni ≥ 70.0 (Balance), Cr 14.0 – 17.0, Fe 5.0 – 9.0, Ti 2.25 – 2.75 (primary γ′ former), Al 0.40 – 1.00, Nb+Ta 0.70 – 1.20, C ≤ 0.08, S ≤ 0.010, Si ≤ 0.50, Mn ≤ 1.00.
Mechanical Properties (Aged Condition):
Tensile Strength (Rm): ≥ 1138 MPa (Typical 1200–1400 MPa).
Yield Strength (Rp0.2): ≥ 965 MPa (Typical 800–1050 MPa).
Elongation (A): ≥ 15–20%.
Hardness: HRC 32–38.
Physical Data: Density 8.28 g/cm³; Melting Range 1393–1427°C; Modulus of Elasticity 214 GPa; CTE (20–100°C) 13.1×10⁻⁶/°C.
Wholesale Supply Forms & Standards
Shanghai COCESS Special Alloys Co., Ltd stocks and produces Inconel X-750 in all major commercial forms for wholesale distribution:
Round Bars & Rods (ASTM B637 / ASME SB-637, AMS 5667/5668): Diameter range from 6mm to 300mm+. Supplied in Solution Treated (soft for machining/cold heading) or Fully Aged (hard). Surface options: Black, Peeled, or Centerless Ground.
Plate, Sheet & Strip (AMS 5542, AMS 5598): Thickness from 0.5mm to 50mm+. Cold-rolled sheets (1000/1219mm width) and hot-rolled plates (1500x6000mm) available in solution annealed condition for forming.
Wire (AMS 5698/5699): Precision drawn wire for spring winding and fastener heading (diameters 0.3–12mm).
Forgings (Open Die Blocks, Rings): Custom forged to print per ASTM B564 conceptual requirements, with UT inspection and grain size control (ASTM 5–8).
Competitive Factory Price Advantages
Sourcing wholesale Inconel X-750 directly from Shanghai COCESS Special Alloys Co., Ltd provides distinct commercial benefits:
No Middleman Markup: Prices are based on actual mill conversion and material costs, not resale margins, allowing significant savings on bulk or project-based orders.
Volume Discounts: Structured wholesale pricing tiers for container-load or annual contract quantities.
Reduced Lead Time: Large standing inventory of standard bars (Φ20/50/80/100/150mm) and plates (3–25mm thick) allows for immediate allocation and faster ex-works dates compared to made-to-order mills.
Custom Processing In-House: Value-added services such as saw cutting to length, plate waterjet cutting, and rough turning are performed internally, saving you external processing costs.
Quality Assurance & Applications
Our wholesale Inconel X-750 is engineered for:
Aerospace & Gas Turbines: High-temp fasteners (bolts/studs/nuts), turbine blade locking pins, thrust reverser parts.
Springs & Fasteners: Helical springs, Belleville washers, wave springs requiring >90% load retention after 1000h at 540–600°C.
Nuclear & Industrial: Control rod drive mechanism springs, heat treat fixtures, high-pressure vessel studs.
Every wholesale shipment is accompanied by an EN 10204 3.1 Mill Test Certificate with full heat number traceability. We support Third-Party Inspection (SGS, TUV, BV) and provide technical guidance on heat treatment (standard aging: 704–732°C plus 618–649°C) and machining parameters.
For a formal wholesale quotation on Inconel X-750 Bars, Plates, Wire, or Forgings at our competitive factory price, please contact the sales team at Shanghai COCESS Special Alloys Co., Ltd with your required specifications and quantity.
Website: https://en.cocessalloys.com
Email: sales@cocessalloys.com
