ASTM B637 Inconel 718 Bar
Grade: UNS N07252, N07001, N07500, N07750, N07718, N07080, N09925
Round Bar Dia: 6-300mm
Features
ASTM B637 Waspaloy, Nimonic 80A, Inconel 718/X-750 Nickel Alloy Bar, Forgings, and Forging Stock
Chemical Composition (wt.%)
| Element | UNS N07252 | UNS N07001 | UNS N07500 | UNS N07750 | UNS N07718 | UNS N07080 | UNS N09925 |
|---|---|---|---|---|---|---|---|
| C | 0.10–0.20 | 0.03–0.10 | 0.15 max | 0.08 max | 0.08 max | 0.10 max | 0.03 max |
| Mn | 0.50 max | 1.00 max | 0.75 max | 1.00 max | 0.35 max | 1.00 max | 1.0 max |
| Si | 0.50 max | 0.75 max | 0.75 max | 0.50 max | 0.35 max | 1.00 max | 0.5 max |
| P | 0.015 max | 0.030 max | 0.015 max | – | 0.015 max | – | 0.03 max |
| S | 0.015 max | 0.030 max | 0.015 max | 0.01 max | 0.015 max | 0.015 max | 0.03 max |
| Cr | 18.00–20.00 | 18.00–21.00 | 15.00–20.00 | 14.00–17.00 | 17.0–21.0 | 18.00–21.00 | 19.5–22.5 |
| Co | 9.00–11.00 | 12.00–15.00 | 13.00–20.00 | 1.00 max | 1.0 max | – | – |
| Mo | 9.00–10.50 | 3.50–5.00 | 3.00–5.00 | – | 2.80–3.30 | – | 2.5–3.5 |
| Nb + Ta | – | – | – | 0.70–1.20 | 4.75–5.50 | – | 0.5 max (Nb only) |
| Ti | 2.25–2.75 | 2.75–3.25 | 2.50–3.25 | 2.25–2.75 | 0.65–1.15 | 1.80–2.70 | 1.9–2.40 |
| Al | 0.75–1.25 | 1.20–1.60 | 2.50–3.25 | 0.40–1.00 | 0.20–0.80 | 0.50–1.80 | 0.1–0.5 |
| Fe | 5.00 max | 2.00 max | 4.00 max | 5.00–9.00 | – | 3.00 max | 22.0 min |
| Ni | Remainder | Remainder | Remainder | 70.00 min | 50.0–55.0 | Remainder | 42.0–46.0 |
Technical Specifications
| Specification | Value |
| Standard | ASTM B637 Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High-Temperature Service |
| Grade | UNS N07252 (M-252), N07001 (Waspaloy), N07500 (Udimet 500), N07750 (Inconel X-750), N07718 (Inconel 718), N07080 (NIMONIC 80A), N09925 (Incoloy 925) |
| Corrosion Resistance | Excellent |
| Delivery Condition | Hot- and cold-worked precipitation-hardenable |
| Shapes | Rod and Bar |
| Density | 8.17g/cm³ |
| Dimension | Rod Dia.: 6 – 300mm |
| Length | 50 – 6000mm |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical Analysis, Tensile Test, UT/ET |
Packing
Small diameter packed in plywood box; large diameter packed on plywood pallets.
Application
Engine Components: These are used in manufacturing high-strength, heat-resistant parts like turbine blades, discs, and rings.
Airframe Parts: These alloys serve for structural components that require high strength-to-weight ratios and durability under high stress and temperature variations.
Landing Gear: Components that need to withstand high stress and corrosion.
Gas Turbine Parts: These are for turbine blades, seals, and combustors where high-temperature strength and corrosion resistance are critical.
Nuclear Reactors: These materials are suitable for control rods, pressure vessels, and reactor cores due to their excellent high-temperature corrosion resistance and strength.
Drilling and Wellhead Equipment: Used in corrosive environments and under high pressure and temperature.
Piping Systems: For transporting hot fluids and gases in corrosive environments.
Reactors and Heat Exchangers: Components that require resistance to high temperature and corrosion by acids, gases, and other aggressive materials.
Pumps and Valves: For handling corrosive chemicals at high temperatures without degradation.
Propulsion Systems: For components that are exposed to seawater and require corrosion resistance and strength.
Naval Ships: In parts of ships, strength, corrosion resistance, and durability are necessary under marine conditions.
Exhaust Systems: Exhaust manifolds and turbocharger rotors are manufactured using alloys that can withstand high temperatures and corrosive environments.
Molds for Plastic Injection: Certain nickel alloys are used in making molds for plastic injection due to their excellent thermal fatigue strength, wear resistance, and ability to withstand the corrosive byproducts of plastics.
