Alloy 800 Bar for Aviation

2. International Material Standards: ASTM B408 (Bar and Rod), ASTM B564 (Forgings), ASME SB408, ASME SB564, DIN 17459, EN 1.4876

3. Pressure Vessel Standards: ASME Section VIII Div. 1, PED 2014/68/EU

4. Testing Standards: ASTM E8, ASTM E23, ASTM E10, ASTM G48, ASTM E243, ASTM E1444 (Magnetic Particle), ASTM A388 (Ultrasonic)

5. Quality Management Standards: AS9100D, ISO 9001, ISO 14001, NADCAP (Non-Destructive Testing)

2. International Designations: UNS N08800, W.Nr. 1.4876, Incoloy 800, NiCr21Fe32

3. Equivalent Grades: NS1101 (China), Alloy 800 (USA), Nicrofer 3221 (Germany), fully compatible with all global aerospace manufacturing standards

4. Special Grades: Alloy 800H (High Carbon) for enhanced creep resistance; Alloy 800HT (High Temperature) for maximum high-temperature strength; precision ground grade for tight tolerance applications

2. Chromium (Cr): 19.0 – 23.0 (for oxidation resistance and high-temperature strength)

3. Iron (Fe): Balance (base element for cost-effectiveness and formability)

4. Carbon (C): ≤0.10 (standard); 0.05-0.10 (800H grade); 0.06-0.10 (800HT grade)

5. Aluminum (Al): 0.15 – 0.60

6. Titanium (Ti): 0.15 – 0.60

7. Manganese (Mn): ≤1.50

8. Silicon (Si): ≤1.00

9. Sulfur (S): ≤0.015

10. Phosphorus (P): ≤0.020

11. Copper (Cu): ≤0.75

Note: Controlled aluminum and titanium content provides excellent high-temperature strength and thermal stability without compromising weldability

1. Tensile Strength (Room Temperature): 515 – 690 MPa

2. 0.2% Yield Strength (Room Temperature): ≥205 MPa

3. Elongation (δ5): ≥40%

4. Reduction of Area: ≥50%

5. Hardness (HB): 120 – 180

Solution Treated State (AMS 5767):

1. Tensile Strength (Room Temperature): 485 – 655 MPa

2. 0.2% Yield Strength (Room Temperature): ≥170 MPa

3. Elongation (δ5): ≥45%

High-Temperature Properties:

1. Tensile Strength (600℃): ≥240 MPa

2. Tensile Strength (800℃): ≥100 MPa

3. Creep Rupture Strength (760℃, 1000h): ≥35 MPa

4. Modulus of Elasticity: 196 GPa

5. Thermal Expansion Coefficient: 15.1 × 10⁻⁶ /℃ (20-100℃)

6. Maximum Continuous Service Temperature: 900℃

– Diameter 6mm – 50mm: ±0.3mm

– Diameter 50mm – 150mm: ±0.5mm

– Diameter 150mm – 300mm: ±0.8mm

2. Cold Drawn Bars:

– Diameter 6mm – 30mm: ±0.03mm

– Diameter 30mm – 80mm: ±0.05mm

– Diameter 80mm – 150mm: ±0.10mm

3. Precision Ground Bars:

– Diameter 6mm – 100mm: ±0.01mm

4. Rectangular/Square Bars:

– Width/Thickness: ±0.05mm for dimensions ≤50mm; ±0.10mm for dimensions >50mm

5. Length Tolerance:

– Fixed Length (1m – 6m): ±2mm

– Custom Length up to 12m available

6. Straightness Tolerance: ≤0.5mm/m for precision grade; ≤0.3mm/m for ultra-precision grade

– Alloy 800 fills the critical performance gap between stainless steel and high-cost nickel alloys, providing excellent strength and oxidation resistance in the 600-900℃ range where stainless steels fail rapidly due to rapid oxidation and strength loss.

– Forms a dense, adherent chromium oxide scale that resists spalling even during extreme thermal cycling, preventing material degradation in engine exhaust and combustion environments.

– Maintains sufficient mechanical strength for structural applications at temperatures up to 900℃, making it ideal for non-critical hot-section components that do not require the extreme performance of Inconel alloys.

2. Superior Carburization and Sulfidation Resistance:

– The 30% minimum nickel content provides significantly better resistance to carburization and sulfidation than stainless steels, critical for components exposed to engine combustion products containing unburned fuel and sulfur.

– Resists oxidation in both oxidizing and reducing atmospheres, ensuring reliable performance in variable engine operating conditions from idle to full power.

– Excellent resistance to halogen gas corrosion from de-icing fluids and cleaning agents, ensuring long-term reliability in all operating environments.

3. Exceptional Thermal Stability:

– Maintains a stable austenitic microstructure even after 100,000+ hours of high-temperature exposure, with no harmful σ phase precipitation or grain growth that would cause embrittlement and premature failure.

– Excellent thermal fatigue resistance, withstanding millions of heating and cooling cycles encountered in aircraft engine operation, including takeoff, cruise and landing cycles.

– Good thermal conductivity and moderate thermal expansion coefficient minimize thermal stress in components subjected to rapid temperature changes.

4. Significant Cost Advantage:

– 30-40% lower material cost than Inconel 600 and 50-60% lower than Inconel 625, making it ideal for large-scale aerospace applications where cost is a critical factor.

– Lower processing costs due to excellent forgeability and machinability, resulting in additional savings for aerospace manufacturers.

– Long service life reduces maintenance and replacement costs, providing a low total cost of ownership over the 30+ year lifecycle of aircraft.

5. Excellent Forgeability and Machinability:

– Outstanding hot forgeability allows for the production of complex shapes such as turbine blades, engine mounts and structural components without cracking or defects.

– Good machinability compared to higher nickel content superalloys, reducing machining time and tool wear.

– Excellent weldability with all conventional welding processes used in aerospace, including TIG, MIG, laser and electron beam welding.

6. Proven Long-Term Reliability:

– Over 50 years of proven performance in commercial and military aviation applications, with an excellent safety record.

– Extensively tested and qualified by all major aircraft and engine manufacturers.

– Excellent fracture toughness ensures that any potential defects will not propagate catastrophically, enhancing aircraft safety.

– Applications: Low-pressure turbine blades, turbine discs, combustion chamber outer liners, exhaust system components, engine mounts, fasteners, bolts, studs, shafts and structural brackets

– Customers: General Electric Aviation, Pratt & Whitney, Rolls-Royce, Safran Aircraft Engines, CFM International, IAE, Honeywell Aerospace

2. Auxiliary Power Units (APU):

– Applications: Combustion chamber components, turbine wheels, exhaust systems, heat exchangers, structural parts and fasteners for aircraft auxiliary power units

– Customers: Honeywell Aerospace, Pratt & Whitney Canada, Safran Power Units, UTC Aerospace Systems

3. Aircraft Environmental Control Systems (ECS):

– Applications: High-temperature ducting components, heat exchanger tubes, valve bodies, actuator parts, manifold blocks and fasteners

– Customers: Collins Aerospace, Safran Cabin, Liebherr Aerospace

4. Aerospace Heat Exchangers:

– Applications: Tube sheets, headers, baffles, support rods, fasteners and structural components for oil coolers, fuel coolers and air-to-air heat exchangers

– Customers: Parker Hannifin, Eaton Aerospace, UTC Aerospace Systems, Liebherr Aerospace

5. Sensors and Instrumentation:

– Applications: Thermocouple protection tubes, temperature sensor housings, pressure sensor components, probe bodies and instrument parts

– Customers: Rosemount Aerospace, Meggitt, Sensata Technologies, UTC Aerospace Systems

6. Aerospace Heat Treatment Equipment:

– Applications: Furnace fixtures, trays, racks, heating elements, retorts and muffles for vacuum furnaces, brazing furnaces and heat treatment furnaces used in aerospace component manufacturing

– Customers: Bodycote, Wall Colmonoy, Solar Atmospheres, major aircraft and engine manufacturers’ in-house heat treatment facilities

– Medium-High Temperature Strength: Must maintain sufficient strength and ductility across the entire operating temperature range (-40℃ to 900℃).

– Oxidation and Corrosion Resistance: Must resist oxidation, carburization and sulfidation from engine combustion products for the entire service life of the component.

– Thermal Fatigue Resistance: Must withstand millions of thermal cycles without cracking or failure.

– Thermal Stability: Must maintain a stable microstructure and mechanical properties after long-term high-temperature exposure.

– Forgeability: Must be forgeable into complex shapes without cracking or defects.

– Machinability: Must be easily machinable using conventional CNC equipment to produce precision components.

2. Quality and Compliance Requirements:

– AS9100 Certification: Must comply with the AS9100 aerospace quality management system standard.

– AMS Standard Compliance: Must meet all requirements of the applicable AMS aerospace material specifications.

– Full Material Traceability: Must provide 100% traceability from raw material ore to finished product, including all processing steps and test results.

– NADCAP Certification: Non-destructive testing must be performed by NADCAP-accredited facilities.

– First Article Inspection (FAI): Must provide complete first article inspection reports for all new parts.

– Material Certification: Must provide comprehensive material test reports (MTR) with each shipment, including chemical analysis, mechanical properties and non-destructive test results.

3. Manufacturing Requirements:

– Precision Dimensional Tolerances: Must meet extremely tight dimensional tolerances to ensure proper fit and assembly in aircraft systems.

– Surface Quality: Must have a smooth, defect-free surface to prevent fatigue crack initiation and oxidation acceleration.

– Internal Quality: Must be free from internal defects such as inclusions, porosity and segregation, verified by 100% ultrasonic testing.

– Consistent Quality: Must have uniform chemical composition and mechanical properties across all batches and throughout the entire cross-section of the bar.

– Cleanliness Requirements: Must meet strict cleanliness standards to prevent contamination of aircraft systems.

– Custom Fabrication Capability: Must be able to produce custom sizes, shapes and configurations according to customer drawings.

4. Supply Chain Requirements:

– Reliable Delivery: Must provide on-time delivery to support aircraft production schedules.

– Long-Term Supply Assurance: Must be able to provide a stable supply of material for the entire lifecycle of aircraft programs (up to 50 years).

– Small Batch Capability: Must be able to produce small batch quantities for prototype development and spare parts.

– Global Supply Capability: Must be able to supply to manufacturing facilities worldwide with consistent quality and lead times.

– Emergency Response: Must be able to respond quickly to unexpected demand spikes and AOG (Aircraft On Ground) situations.

5. Cost Requirements:

– Competitive Pricing: Must offer competitive pricing while maintaining the highest quality standards.

– Low Total Cost of Ownership: Must provide lower total cost of ownership through longer service life, reduced maintenance and fewer replacement costs.

– Value-Added Services: Must offer value-added services such as cutting, turning, milling and heat treatment to reduce customer manufacturing costs.

2. Alloy 800 Square/Rectangular Bars: Custom sizes available for structural applications and machine components

3. Alloy 800 Hexagonal Bars: Used for manufacturing nuts, bolts, screws and other threaded fasteners

4. Alloy 800 Forgings: Custom forgings including turbine discs, engine mounts, valve bodies, flanges and structural components

5. Alloy 800 Fasteners: Bolts, nuts, screws, studs, washers and rivets in all standard and custom sizes

6. Alloy 800 Wire: Solid wire and welding wire for manufacturing springs, fasteners and welding applications

7. Alloy 800 Welding Materials: Electrodes, wires and filler metals specifically formulated for aerospace welding applications

8. Alloy 800 Machined Components: Precision-machined parts including shafts, pins, valves, fittings and sensor housings

9. Alloy 800 Sheets and Plates: Used for manufacturing heat shields, ducting and structural components

10. Alloy 800 Pipes and Tubes: Used for aerospace exhaust systems, heat exchangers and instrumentation

2. AS9100 Certified: Our production facilities are fully certified to AS9100D, the international standard for aerospace quality management systems.

3. Dedicated Aerospace Bar Production Line: We operate a dedicated clean production line for aerospace-grade Alloy 800 bars, ensuring strict control over chemical composition, mechanical properties and internal quality.

4. Full-Process Quality Control: We implement a comprehensive quality control system from raw material inspection to finished product testing, including 100% ultrasonic testing and magnetic particle testing for all aerospace-grade bars.

5. AMS Standard Compliance: All our products are manufactured in strict accordance with AMS 5766, AMS 5767 and other applicable aerospace material standards.

6. Advanced Customization Capability: We can produce custom sizes, lengths, tempers and surface finishes according to your drawings and technical specifications, including precision-machined bars and forged blanks.

7. Global Aerospace Supply Chain Experience: We have extensive experience supplying to major aircraft and engine manufacturers worldwide, with reliable logistics partners ensuring on-time delivery to manufacturing facilities anywhere in the world.

8. Professional Aerospace Technical Support: Our team of metallurgical engineers and aerospace specialists provides expert guidance on material selection, design optimization and manufacturing techniques for medium-high temperature aerospace applications.

2. Full Material Traceability: Every bar comes with a unique heat number and complete traceability documentation from raw material ore to finished product, meeting the strictest aerospace industry requirements.

3. Value-Added Processing: We offer comprehensive value-added services including precision cutting, CNC turning, milling, grinding, heat treatment and surface finishing, providing ready-to-machine aerospace components.

4. Prototype Development Support: We support small batch prototype orders with fast turnaround times to help you accelerate product development and testing for new aerospace programs.

5. Long-Term Supply Assurance: We maintain strategic inventory levels to ensure a stable supply of material for the entire lifecycle of aircraft programs.

6. AOG Emergency Service: We provide 24/7 emergency response service for Aircraft On Ground (AOG) situations, with expedited production and shipping available.

7. Market Growth: The global aerospace Alloy 800 market is projected to grow at a CAGR of over 5% through 2030, driven by increasing demand for new commercial aircraft and the need for cost-effective high-temperature materials.

8. Sustainability Commitment: All our products are manufactured using sustainable practices and are 100% recyclable, helping you meet your environmental targets and comply with global sustainability regulations.

2. Waterproof Film: Each bar is individually wrapped in waterproof and anti-corrosion film to protect against moisture and rust

3. Bundle Packing: Bars of the same size are bundled together with steel straps and wooden spacers to prevent contact and damage

4. Wooden Case: Bundles are packed in sturdy fumigated wooden cases with steel reinforcement to prevent damage during international shipping

5. Export Standard Packing: All packaging complies with international export standards and ISPM 15 regulations for wooden packaging

6. Marking: Each package is clearly marked with product specifications, heat number, quantity, gross weight, net weight and destination information