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Inconel X-750 Spring Wire UNS N07750 AMS 5698 0.1-8mm Cold Drawn Nickel Alloy Wire for High Temperature Springs
| Place of Origin | Shanghai, China |
|---|---|
| Brand Name | HUONA |
| Certification | ISO 9001:2015, EN 10204 3.1 |
| Model Number | Inconel X-750 / UNS N07750 |
| Minimum Order Quantity | 20 Kilograms |
| Price | USD 30-70 / Kilogram |
| Packaging Details | Layer wound spool, VCI paper, sealed foil bag with desiccant, export plywood case |
| Delivery Time | 7-10 working days for stock diameters, 20-30 days for custom temper and sizes |
| Payment Terms | T/T,L/C at sight,Western Union |
| Supply Ability | 50 Tons per Month |
Product Details
| Grade | Inconel X-750 / UNS N07750 / W.Nr. 2.4669 / GH4145 | Nickel Plus Cobalt | >= 70.0% |
|---|---|---|---|
| Chromium Content | 14.0-17.0% | Titanium Content | 2.25-2.75% |
| Aluminium Content | 0.40-1.00% | Niobium Plus Tantalum | 0.70-1.20% |
| Wire Diameter | 0.1-8.0mm (customizable) | Condition | Spring Temper, Bright Annealed, Solution Treated, Solution Plus Aged |
| Tensile Strength | 1400-1700 MPa (spring Temper) | Hardness | 38-45 HRC (spring Temper) |
| Density | 8.28 G/cm3 | Max Oxidation Temperature | Approx. 980 C |
| Max Relaxation Temperature | Approx. 540 C | Electrical Resistivity | 1.18 UOhm.m At 20 C |
| Standard | AMS 5698 / AMS 5699 / ASTM B637 / B865 | Inspection | EN 10204 3.1 MTC, Tensile, Wrap Test, Grain Size |
| Highlight | AMS 5698 X-750 Spring Wire,UNS N07750 Cold Drawn Wire,GH4145 High Temp Spring Wire |
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Product Description
Product Overview
Inconel X-750 spring wire (UNS N07750, W.Nr. 2.4669, GH4145) is an age-hardenable nickel-chromium alloy wire that combines high tensile strength with excellent relaxation resistance up to approximately 540 °C and good oxidation resistance up to 980 °C. Compared with alloy 718, it retains its spring properties at elevated temperature for longer, which is why X-750 is the standard choice for high-temperature springs, seals, retainers and wire mesh.
We supply the wire cold drawn to spring temper, bright annealed, or solution treated and ready for ageing. Diameter range is 0.1 mm to 8.0 mm with tight tolerance control, uniform surface and consistent coil-to-coil properties. Each lot is checked for tensile strength, wrap test, grain size and dimensional accuracy, and delivered with an EN 10204 3.1 mill test certificate.
Chemical Composition (wt. %)
| Element | Ni + Co | Cr | Fe | Ti | Al | Nb + Ta | Mn | Si | C | Cu |
|---|---|---|---|---|---|---|---|---|---|---|
| Specification | ≥ 70.0 | 14.0–17.0 | 5.0–9.0 | 2.25–2.75 | 0.40–1.00 | 0.70–1.20 | ≤ 1.00 | ≤ 0.50 | ≤ 0.08 | ≤ 0.50 |
Mechanical Properties (Wire, Room Temperature)
| Condition | Tensile Strength | Yield Strength (0.2%) | Elongation | Hardness |
|---|---|---|---|---|
| Spring temper, cold drawn | 1400–1700 MPa | 1150–1400 MPa | ≥ 8% | 38–45 HRC |
| Solution treated + aged | ≥ 1240 MPa | ≥ 790 MPa | ≥ 12% | 30–38 HRC |
| Bright annealed | 900–1100 MPa | ≥ 550 MPa | ≥ 20% | ≤ 25 HRC |
Physical and High-Temperature Properties
| Parameter | Value | Remark |
|---|---|---|
| Density | 8.28 g/cm³ | Room temperature |
| Melting range | 1390–1430 °C | — |
| Max. oxidation service temperature | approx. 980 °C | Intermittent, oxidising atmosphere |
| Max. stress relaxation temperature | approx. 540 °C | Spring applications |
| Electrical resistivity | 1.18 µΩ·m | at 20 °C |
| Modulus of elasticity | 213 GPa | Tension, room temperature |
| Creep rupture strength | approx. 200 MPa at 650 °C / 1000 h | Typical |
| Magnetic behaviour | Weakly magnetic below Curie point | Non-magnetic in most aged service |
Wire Sizes and Conditions
| Diameter | Condition Available | Tolerance | Spool Weight |
|---|---|---|---|
| 0.10–0.50 mm | Spring temper, bright annealed | ±0.005 mm | 0.5–3 kg |
| 0.51–2.00 mm | Spring temper, annealed, solution treated | ±0.01 mm | 2–10 kg |
| 2.01–5.00 mm | Annealed, solution + aged | ±0.02 mm | 5–20 kg |
| 5.01–8.00 mm | Annealed, solution + aged, straight length | ±0.03 mm | Coil or 3 m bar |
Standards and Designations
| Standard | Designation |
|---|---|
| AMS | 5698 (wire), 5699 (spring temper wire), 5598 |
| ASTM | B637, B865 |
| UNS | N07750 |
| DIN / EN | W.Nr. 2.4669, NiCr15Fe7TiAl |
| GB | GH4145 |
| Inspection | EN 10204 3.1 MTC, tensile, wrap test, grain size |
Typical Applications
- High-temperature springs for gas turbines, exhaust systems and valves
- Nuclear reactor core springs, seals and hold-down springs
- Aerospace fasteners, bolts and lock wire
- Wire mesh, filter screens and catalyst support mesh
- Heat-treatment furnace fixtures, retorts and baskets
- Cryogenic components and pressure vessel internals
Why Choose This X-750 Wire
- Cold-drawn spring temper delivers high tensile strength with reliable coiling behaviour
- Excellent stress relaxation resistance keeps spring load stable at 540 °C
- Oxidation resistant to approximately 980 °C, suitable for hot-section hardware
- Constant diameter and bright surface help avoid tool wear and coiling cracks
- Available in spring temper or aged condition to match your forming sequence
Packing and Delivery
Wire is layer-wound on plastic or wooden spools, interleaved with VCI paper, sealed in foil bags with desiccant and packed in export plywood cases. Straight lengths are bundled in PVC sleeves. Stock diameters ship in 7–10 working days; custom temper and sizes take 20–30 days after deposit. FOB Shanghai or CIF per request.
Ordering Information
Please confirm diameter, condition (spring temper, bright annealed or solution treated), spool weight, surface requirement and annual quantity. Sample coils of 1–2 kg are available for coiling and relaxation trials. Send your specification and we will confirm price, lead time and MTC the same working day.
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