High Temperature Alloy Round Bar (Inconel®, Haynes®, Nimonic®, etc.)
✓ Ultra-High Temperature Stability: Maintains tensile strength at 1,000°C (1,832°F) with **<0.1% creep strain** after 1,000 hours (Nimonic 90).
✓ Corrosion Immunity: Resists chloride stress corrosion cracking (Cl-SCC), molten salts, and sulfuric acid (H₂SO₄) with **<0.02mm/year corrosion rate**.
✓ Precision Machinability: Cold-drawn/hot-rolled bars with **±0.05mm diameter tolerance** and Ra ≤1.6μm surface finish for CNC turning, milling, and grinding.
✓ Thermal Fatigue Resistance: Withstands 10,000+ thermal cycles between 25°C–1,100°C (77°F–2,012°F) without cracking.
High Temperature Alloy Round Bar (Inconel®, Haynes®, Nimonic®, etc.)
Engineered for industries operating in extreme thermal, corrosive, and high-stress environments, our high-temperature alloy round bars deliver unmatched performance in aerospace, energy, and industrial applications. Made from nickel-chromium-based superalloys (e.g., Inconel 718: Ni-52.5%, Cr-19%, Mo-3%), these bars withstand continuous temperatures up to 1,200°C (2,192°F) while resisting oxidation, sulfidation, and creep deformation. Certified to AMS 5662, ASTM B637, and ASME SB637, they outperform conventional alloys with 10x longer lifespan in aggressive conditions.
- Diameter: 5mm–300mm (cold-drawn/hot-rolled)
- Length: 1m–6m (standard) / custom-cut to 12m
- Surface Finishes: Hot Rolled, Cold Drawn, Polished (Ra ≤0.8μm)
- Mechanical Properties (Inconel 718): Yield Strength ≥1,100 MPa | Tensile Strength ≥1,400 MPa | Elongation ≥12% | Hardness ≤35 HRC
| Parameter Category | Inconel 718 | Haynes 282 | Waspaloy | Nimonic 80A |
|---|---|---|---|---|
| Material Standard | ASTM B637, UNS N07718 | ASTM B637, UNS N07208 | AMS 5708, UNS N07001 | BS HR 901, UNS N07080 |
| Chemical Composition (%) | Ni: 50–55, Cr: 17–21, Fe: Balance, Mo: 2.8–3.3, Nb+Ta: 4.75–5.5, Ti: 0.65–1.15, Al: 0.2–0.8 | Ni: 56–59, Co: 9–11, Cr: 19–21, Mo: 8.5–9.5, Ti: 2.0–2.4, Al: 1.4–1.6 | Ni: 54–57, Cr: 18–21, Co: 12–15, Mo: 3.5–5.0, Ti: 2.75–3.25, Al: 1.2–1.6 | Ni: 70–75, Cr: 18–21, Ti: 1.8–2.7, Al: 1.0–1.8, Fe: ≤3.0 |
| Tensile Strength (MPa) | 1275–1550 (Aged) | 1000–1170 (Aged) | 1170–1380 (Aged) | 900–1100 (Aged) |
| Yield Strength (MPa) | 1035–1350 (Aged) | 760–895 (Aged) | 830–1030 (Aged) | 600–850 (Aged) |
| Elongation (%) | ≥12 (in 50mm gauge length) | ≥15 (in 50mm gauge length) | ≥12 (in 50mm gauge length) | ≥15 (in 50mm gauge length) |
| Hardness | Rockwell C35–45 | Rockwell C30–38 | Rockwell C35–42 | Rockwell C25–35 |
| Density (g/cm³) | 8.19 | 8.28 | 8.22 | 8.19 |
| Melting Range (°C) | 1260–1336 | 1315–1370 | 1330–1390 | 1360–1425 |
| Thermal Conductivity (W/m·K) | 11.4 (20°C) | 11.0 (20°C) | 11.8 (20°C) | 12.5 (20°C) |
| Thermal Expansion (10⁻⁶/°C) | 13.0 (20–100°C) | 12.9 (20–100°C) | 13.2 (20–100°C) | 13.8 (20–100°C) |
| Max Service Temperature (°C) | 700 (continuous) | 800 (continuous) | 815 (continuous) | 750 (continuous) |
| Creep Rupture Strength | 200 MPa (100h at 650°C) | 150 MPa (100h at 750°C) | 170 MPa (100h at 730°C) | 120 MPa (100h at 700°C) |
| Oxidation Resistance | Excellent up to 700°C in air. | Good up to 800°C (Cr-rich oxide). | Excellent up to 815°C (Cr/Ti oxide). | Good up to 750°C (Cr/Al oxide). |
| Heat Treatment | Aging: 720°C/8h + 620°C/8h. | Solution: 1120°C + Aging: 800°C/8h. | Solution: 1080°C + Aging: 760°C/16h. | Aging: 700–800°C for 16h. |
| Surface Finishes | Hot Rolled, Cold Drawn, Polished. | Hot Rolled, Annealed & Descaled. | Hot Rolled, Peeled, Polished. | Hot Rolled, Pickled & Passivated. |
| Diameter Range (mm) | 5–300 | 5–250 | 5–300 | 5–200 |
| Length (m) | 3–6 (standard), Custom up to 12. | 3–6 (standard) | 3–6 (standard) | 3–6 (standard) |
| Key Applications | Aerospace turbine discs, fasteners, nuclear reactors. | Gas turbine blades, exhaust systems, power generation. | Jet engine shafts, bolts, afterburner components. | Gas turbine blades, exhaust valves, industrial furnace parts. |
High Temperature Alloy Round Bar (Inconel®, Haynes®, Nimonic®, etc.) Applications
| Industry | Critical Use Cases | High-Temperature Alloy Round Bar Advantage |
|---|---|---|
| Aerospace | Jet engine shafts, turbine discs | Resists creep deformation at 950°C (1,742°F). |
| Power Generation | Nuclear reactor control rods, turbine blades | Withstands 1,200°C (2,192°F) in CO/H₂-rich atmospheres. |
| Oil & Gas | Downhole tools, flare stack components | Immunity to sulfidation at 650°C (1,202°F). |
| Chemical Processing | Ethylene cracker components, reactor agitators | Resists 20% H₂SO₄ at 200°C (392°F). |
High Temperature Alloy Round Bar (Inconel®, Haynes®, Nimonic®, etc.) Product Packaging
High Temperature Alloy Round Bar (Inconel®, Haynes®, Nimonic®, etc.) are engineered for aerospace turbines, nuclear reactors, and high-stress industrial applications (operating up to 1,300°C). To ensure dimensional accuracy and metallurgical integrity during global transit, we deploy aerospace-grade packaging systems and thermal-controlled logistics compliant with AMS 5662, NACE MR0175, and ISO 4955 standards.
Small Bars (<50mm)
Bundled with steel straps + VCI-coated wraps, crated on reinforced wooden pallets.
Large Bars (≥50mm)
End caps + edge protectors, stacked in custom steel racks with desiccant units.
Anti-Scratch Sleeving
Silicone-impregnated fabric for polished/ground surfaces.
RFID Tags
Embedded tracking chips with real-time material certification access.
High Temperature Alloy Round Bar (Inconel®, Haynes®, Nimonic®, etc.) Shipping
Sea transport
40HQ container (loading capacity 28 tons) / bulk carrier (LCL minimum 1 ton)
Air transport
reach major airports around the world within 7 days (DDP/DAP terms)
Land transport
door-to-door within China (qualification for dangerous goods transportation)
Our Services
We guarantee global door-to-door delivery within 7–15 business days via partnerships with DHL, Maersk, and UPS.
Why Choose Us?
Where Precision Meets Partnership，25 years of focus on metal material science，Not only a supplier, but also your engineering consultant，Fast and zero compromise，Sustainable trust cycle。
Full specifications and customization
Unlimited size, support non-standard cutting. Multiple surface treatments.
Professional capabilities
25 Years Of Focus On Metal Materials Science
Certification & Quality Assurance
Products comply with international standards such as ASTM, EN, JIS, etc., and are 100% tested from raw materials to finished products
Fast delivery & global supply
Global urgent orders are delivered within 15 days. One-stop service
FAQ
Q1: How does Inconel 718 compare to Haynes 282 in high-temperature service?
A: Inconel 718 offers higher tensile strength (1,400 MPa) below 650°C (1,202°F), while Haynes 282 excels in creep resistance above 750°C (1,382°F).
Q2: What machining parameters prevent work hardening?
A: Use carbide tools with cutting speeds ≤80 m/min and coolant flow ≥10 L/min for Inconel 718/Haynes 230.
Q3: Are bars certified for aerospace engines?
Full compliance includes:
- AMS 5662/AMS 5663 (Aerospace Material Specifications)
- ASME Section III Nuclear Components
- NACE MR0175/ISO 15156
Q4: What’s the minimum order quantity (MOQ)?
Standard stock: 1 ton MOQ.
Custom sizes/tempers: 5 tons MOQ (lead time 35 days).
Q5: How to verify material authenticity?
Scan QR codes with AlloyGuard™ app to access:
- XRF validation against PMI certificates
- Third-party SGS/BV test reports
- Blockchain-validated EN 10204 3.1/3.2 certifications
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