UNS N07718 Alloy 718 Inconel Hollow Rod Nickel-base Alloy Bar

INCONEL 718 hollow rod is a high-performance nickel-based high-temperature alloy material. With its excellent high temperature resistance, corrosion resistance and oxidation resistance, it is widely used in complex working environments in aerospace, energy, chemical and other fields.

INCONEL 718 (UNS N07718) is a nickel-chromium-based high-temperature alloy that achieves precipitation strengthening by adding elements such as niobium (Nb) and molybdenum (Mo).

Core characteristics:

1. High temperature performance: long-term working temperature can reach 700°C (1290°F), short-term resistance to 980°C (1800°F).
2. High strength: yield strength (≥1030 MPa) and tensile strength (≥1240 MPa) far exceed ordinary stainless steel.
3. Corrosion resistance: Resistant to chloride stress corrosion, oxidation, and sulfidation environments, suitable for acidic and marine environments.
4. Processing friendliness: Mechanical properties can be further improved by age-hardening.

Heat treatment:

Solution treatment: 955°C ±10°C, 1 hour/25mm thickness, water quenching.

Age hardening: 720°C ±5°C (8 hours) → 620°C ±5°C (8 hours), air cooling.

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• Typical application areas
  Aerospace: engine combustion chamber liners, turbine shafts, rocket nozzles.

  Energy industry: nuclear power reactor pressure tubes, gas turbine ducts.

  Petrochemical: valve housings and pump shafts in highly corrosive environments.

  Medical equipment: MRI components, surgical instruments (requires biocompatibility treatment)
  Quality Assurance: From melting (VIM+ESR) to cold rolling/extrusion, full NDT testing (ultrasonic + eddy current).

More grades:

Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications.

We have complete advanced technology facilities to produce best quality alloys to meet exacting your specifications such as VIM (Vacuum lnduction Melting) furnace to provide high purity Alloys,ESR (Electro Slag Re-melting) furnace to enhances the structure and purity of the Alloys, and CNC machining equipments (Lathe, Wire cutting, Drilling,Milling) to provide high precision finished products.

We are dedicated to providing our customers with best quality products,fastest possible deliveries, most competitive prices of Nickel Based Corrosion Resistant and High Temperature alloys in bars,rods,forged flanges, valve parts, forged shapes (shafts, discs, blocks, hubs,rings, cylinders and tailor shapes) according to ASTM,ASME,API,AMS, NACE and other industry standards.

We can help you gain a competitive edge in the market by responding to a rush quote in less than 24 hours and even complex requests for price and delivery quotations are responded to within 48 hours.