All Products
-
Alfred***We received the goods, everything went fine. Perfect packaging, good product quality, good price - we are satisfied. -
May***The product quality is very good, beyond my expectations, the actual use of fully meet my needs, we will buy again. -
Matthew***I bought low expansion alloy from Joy, She is a very responsible lady, Huona's products quality is pretty good.
Inconel 718 Forged Round Bar UNS N07718 10-300mm Triple Melt AMS 5662 Nickel Alloy Rod for Gas Turbine Discs
| Place of Origin | Shanghai, China |
|---|---|
| Brand Name | HUONA |
| Certification | ISO 9001:2015, EN 10204 3.1 |
| Model Number | Inconel 718 / UNS N07718 |
| Minimum Order Quantity | 50 Kilograms |
| Price | USD 25-60 / Kilogram |
| Packaging Details | End caps, plastic strapping bundle, waterproof paper, export wooden case with heat number marking |
| Delivery Time | 7-10 working days for stock diameters, 25-35 days for forged sizes |
| Payment Terms | T/T,L/C at sight,Western Union |
| Supply Ability | 300 Tons per Month |
Product Details
| Grade | Inconel 718 / UNS N07718 / W.Nr. 2.4668 / GH4169 | Nickel Content | 50.0-55.0% |
|---|---|---|---|
| Chromium Content | 17.0-21.0% | Niobium Plus Tantalum | 4.75-5.50% |
| Molybdenum Content | 2.80-3.30% | Melting Route | VIM + ESR + VAR (triple Melt) |
| Diameter Range | 10-300mm | Length | 1000-6000mm |
| Surface | Black, Turned, Peeled, Ground Or Polished | Condition | Solution Annealed Or Solution Plus Aged |
| Tensile Strength | >= 1240 MPa (aged) | Yield Strength | >= 1034 MPa (aged) |
| Elongation | >= 12% (aged) | Hardness | 36-44 HRC (aged) |
| Density | 8.19 G/cm3 | Max Service Temperature | Approx. 700 C |
| Standard | AMS 5662 / AMS 5663 / ASTM B637 | Inspection | Ultrasonic Test, EN 10204 3.1 MTC |
| Highlight | Triple Melt Inconel 718 Bar,UNS N07718 Forged Round Bar,AMS 5662 Turbine Disc Bar |
||
Product Description
Product Overview
Inconel 718 round bar (UNS N07718, W.Nr. 2.4668, GH4169) is a precipitation-hardening nickel-chromium-iron alloy with niobium and molybdenum additions. It retains high strength up to approximately 700 °C, resists oxidation and chloride stress corrosion, and remains non-magnetic after ageing. Our bars are produced by triple melting (VIM + ESR + VAR), forged and rolled to a fine, uniform grain structure, then supplied solution treated plus aged (AMS 5662 / AMS 5663) or solution annealed only, depending on the machining route.
Diameter range is 10 mm to 300 mm in black, turned, peeled, ground or polished condition, with lengths up to 6000 mm. Each heat is ultrasonic tested and delivered with an EN 10204 3.1 mill test certificate. Bars can be cut to length, trepanned for rings, or machined into pre-forms on request.
Chemical Composition (wt. %)
| Element | Ni | Cr | Nb+Ta | Mo | Ti | Al | Co | C | Fe |
|---|---|---|---|---|---|---|---|---|---|
| Specification | 50.0–55.0 | 17.0–21.0 | 4.75–5.50 | 2.80–3.30 | 0.65–1.15 | 0.20–0.80 | ≤ 1.00 | ≤ 0.08 | Balance |
Mechanical Properties (Room Temperature)
| Property | Value | Condition |
|---|---|---|
| Tensile strength | ≥ 1240 MPa | Solution + aged |
| Yield strength (0.2%) | ≥ 1034 MPa | Solution + aged |
| Elongation | ≥ 12% | Solution + aged |
| Hardness | 36–44 HRC | Solution + aged |
| Tensile strength | ≥ 965 MPa | Solution annealed |
| Yield strength (0.2%) | ≥ 550 MPa | Solution annealed |
| Elongation | ≥ 20% | Solution annealed |
Physical Properties
| Parameter | Value | Remark |
|---|---|---|
| Density | 8.19 g/cm³ | Room temperature |
| Melting range | 1260–1336 °C | — |
| Max continuous service temperature | approx. 700 °C | Oxidation limited |
| Curie temperature | approx. -250 °C | Non-magnetic in service |
| Thermal conductivity | 11.4 W/m·K | at 20 °C |
| Coefficient of expansion | 13.0 µm/m·K | 20–100 °C |
| Electrical resistivity | 1.25 µΩ·m | at 20 °C |
| Modulus of elasticity | 200 GPa | Tension |
Size Range and Forms
| Form | Diameter | Length | Surface / Tolerance |
|---|---|---|---|
| Forged round bar | φ 80–300 mm | 1000–6000 mm | Black or turned, +2/+3 mm |
| Rolled round bar | φ 10–80 mm | 3000–6000 mm | Peeled / turned, h9–h11 |
| Ground bar | φ 10–120 mm | 1000–4000 mm | Ground, h7–h9, Ra 0.8 |
| Polished bar | φ 6–80 mm | 1000–3000 mm | Polished, Ra 0.4 |
| Cut blanks | as required | 20–1000 mm | Sawn, ±0.5 mm |
Standards and Grades
| Standard | Designation |
|---|---|
| AMS | 5662 (bar, forging stock), 5663 (forged), 5664 (high strength) |
| ASTM | B637 (bar and forging stock) |
| UNS | N07718 |
| DIN / EN | W.Nr. 2.4668, NiCr19Fe19Nb5Mo3 |
| GB | GH4169 |
| Inspection | EN 10204 3.1 MTC, ultrasonic test, grain size, hardness |
Typical Applications
- Gas turbine discs, shafts, casings and fasteners
- Aerospace engine compressor components and cryogenic hardware
- Oil and gas wellhead, downhole tools and high-pressure valves
- Nuclear reactor components and instrument drive shafts
- High-strength bolts, studs and threaded fasteners for high-temperature service
- Moulds, dies and extrusion tooling for hot working
Why Choose This Triple Melt Bar
- VIM + ESR + VAR melting keeps oxygen, nitrogen and segregation low for critical rotating parts
- Forged structure with fine uniform grain size for stable ultrasonic response
- Full diameter range 10–300 mm covers both machined fasteners and large disc blanks
- AMS 5662 heat treatment condition ready for direct machining — no re-solution needed
- Each heat comes with EN 10204 3.1 MTC, traceable to melt number
Packing and Delivery
Bars are protected with end caps, bundled with plastic strapping, wrapped in waterproof paper and packed in export wooden cases with heat number marking on each bar. Container or LCL shipment, FOB Shanghai or CIF per request. Stock sizes ship in 7–10 working days; forged sizes in 25–35 days after deposit.
Ordering Information
Please state diameter, length, condition (solution annealed or solution plus aged), surface requirement and quantity. Cut-to-length and trepanned rings are available. Send your specification and we will reply with price, lead time and MTC sample the same working day.
Recommended Products
