Alloy 800 (UNS N08800) bar for automobile manufacturing is a cost-effective iron-nickel-chromium solid solution alloy bar with exceptional high-temperature oxidation resistance, carburization resistance and thermal stability. Specially engineered for automotive high-temperature solid components, it maintains stable mechanical properties up to 900℃, making it the ideal material for turbocharger systems, exhaust manifolds and EGR components where optimal cost-performance balance is critical.
As the industry-standard general-purpose high-temperature alloy, Alloy 800 bar offers comparable oxidation resistance to Inconel 600 at 30-40% lower material cost, with excellent forgeability, machinability and weldability. It has been widely used in automotive high-temperature applications for over 50 years, proven in billions of vehicles worldwide.
| Item | Details |
|---|---|
| Executive Standards | 1. International Material Standards: ASTM B408 (Bar, Rod and Wire), ASTM B564 (Forgings), ASME SB408, ASME SB564, DIN 17459, EN 1.4876
2. Automotive Industry Specific Standards: IATF 16949, ISO/TS 16949, SAE J467, SAE AMS 5587, SAE AMS 5588 3. Fastener Standards: ASTM F468, ISO 898-1, SAE J429 4. Testing Standards: ASTM E8 (Tensile), ASTM E23 (Impact), ASTM E10 (Hardness), ASTM G48 (Corrosion) 5. Quality Management Standards: ISO 9001, ISO 14001, IATF 16949, PED 2014/68/EU |
| Material Grade | 1. Main Grade: Alloy 800 (Iron-Nickel-Chromium Alloy, General-Purpose High-Temperature Automotive Grade)
2. International Designations: UNS N08800, W.Nr. 1.4876, Incoloy 800, X10NiCrAlTi32-20 3. Equivalent Grades: NS1101 (China), Alloy 800 (USA), Nicrofer 3220 (Germany), fully compatible with all global automotive manufacturing standards 4. Special Grades: Alloy 800H (high carbon, 0.05-0.10% C) and Alloy 800HT (high temperature, 0.06-0.10% C) available for applications requiring enhanced creep strength above 600℃ |
| Chemical Composition (Weight %) | 1. Nickel (Ni): 30.0 – 35.0 (for high-temperature stability and corrosion resistance)
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. Aluminum (Al): 0.15 – 0.60 (for enhanced high-temperature oxidation resistance) 5. Titanium (Ti): 0.15 – 0.60 (for grain refinement and improved creep strength) 6. Carbon (C): ≤0.10 (standard grade); 0.05-0.10 (Alloy 800H); 0.06-0.10 (Alloy 800HT) 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 |
| Mechanical Properties | Annealed State (Standard for General Applications):
1. Tensile Strength (Room Temperature): 550 – 700 MPa 2. 0.2% Yield Strength (Room Temperature): ≥240 MPa 3. Elongation (δ5): ≥40% 4. Hardness (HB): 120 – 180 5. Tensile Strength (300℃): ≥420 MPa 6. Tensile Strength (500℃): ≥320 MPa 7. Tensile Strength (800℃): ≥120 MPa Alloy 800HT High-Temperature Grade: 1. Creep Rupture Strength (800℃, 1000h): ≥40 MPa 2. Modulus of Elasticity: 196 GPa 3. Thermal Expansion Coefficient: 15.1 × 10⁻⁶ /℃ (20-100℃) |
| Dimensional Tolerance (Automotive Precision Grade) | 1. Hot Rolled Bars:
– 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 Turned & Ground Bars: – Diameter 6mm – 100mm: ±0.01mm 4. Length Tolerance: – Fixed Length (1m – 6m): ±3mm – Custom Length up to 12m available 5. Straightness Tolerance: ≤0.5mm/m for all grades |
| Why This Material Is Used in Automobile Manufacturing (Detailed) | 1. Exceptional High-Temperature Oxidation and Carburization Resistance:
– Alloy 800 forms a dense, adherent chromium oxide scale at high temperatures that resists oxidation and spalling during thermal cycling, providing reliable performance up to 900℃ in continuous service. – Excellent resistance to carburization and nitridation in high-temperature exhaust atmospheres containing carbon monoxide, hydrocarbons and nitrogen oxides, preventing material embrittlement and premature failure. – Outperforms 304/316L stainless steel by 5-10x in high-temperature oxidation resistance, making it ideal for components operating above 600℃. 2. Superior Stress Corrosion Cracking Resistance: – Completely resistant to chloride-induced stress corrosion cracking in high-temperature water and steam environments, a critical property for EGR cooler components. – Resists SCC in both aqueous and gaseous environments, even under high tensile stress conditions, eliminating the risk of sudden catastrophic failure. – Excellent resistance to caustic corrosion from alkaline solutions used in automotive cleaning processes. 3. Outstanding Thermal Stability and Thermal Fatigue Resistance: – Maintains a stable austenitic microstructure even after 100,000+ hours of high-temperature exposure, with no phase transformations or grain growth that would cause embrittlement. – Excellent thermal fatigue resistance, withstanding millions of heating and cooling cycles encountered in stop-and-go driving conditions without cracking. – Good thermal conductivity and moderate thermal expansion coefficient minimize thermal stress in components subjected to rapid temperature changes. 4. Unbeatable Cost-Performance Ratio: – Offers comparable high-temperature oxidation resistance to Inconel 600 at 30-40% lower material cost, making it the most economical choice for mid-to-high temperature automotive applications. – Longer service life compared to stainless steel reduces warranty claims and replacement costs, resulting in significantly lower total cost of ownership. – Enables automotive manufacturers to meet performance requirements without excessive cost increases, particularly for mass-produced vehicles. 5. Excellent Manufacturability: – Outstanding weldability with no post-weld heat treatment required for most applications, reducing manufacturing costs and cycle times. – Excellent forgeability allows for the production of complex shapes such as turbine wheels and exhaust manifold flanges without cracking or defects. – Good machinability for precision components such as fasteners and sensor housings. 6. Long-Term Reliability and Durability: – Service life of 10-15 years or 200,000+ miles, significantly longer than stainless steel in high-temperature environments. – Reduces maintenance costs and downtime for commercial vehicles operating in harsh conditions. – Proven performance in automotive applications for over 50 years, with a well-established track record of reliability. |
| Application Scenarios and Corresponding Customers (Detailed) | 1. Turbocharger Systems:
– Applications: Turbocharger turbine housings, wastegate components, actuator rods, bearing housings, heat shields and fasteners – Customers: BorgWarner, Garrett Motion, Mitsubishi Heavy Industries, Honeywell, Cummins, IHI Corporation, global automotive OEMs 2. Exhaust System Components: – Applications: Exhaust manifold flanges, catalytic converter flanges, exhaust headers, muffler brackets, exhaust hangers and heat shield fasteners – Customers: Tenneco, Faurecia, Magna, Bosal, Akrapovič, Mercedes-Benz, BMW, Audi, Porsche 3. Exhaust Gas Recirculation (EGR) Systems: – Applications: EGR valve bodies, EGR cooler flanges, EGR pipe fittings, actuator components and fasteners – Customers: Daimler Trucks, Volvo Trucks, PACCAR, Scania, MAN, Cummins, Tier 1 thermal management system suppliers 4. Sensors and Actuators: – Applications: Oxygen sensor housings, temperature sensor housings, pressure sensor bodies, EGR actuator parts and fuel injector components – Customers: Bosch, Continental, Denso, Delphi, Vitesco Technologies, Sensata Technologies 5. Automotive Manufacturing Process Equipment: – Applications: Fixtures, jigs, trays and components for heat treatment furnaces, brazing furnaces and sintering furnaces used in automotive component manufacturing – Customers: Automotive manufacturing plants, industrial furnace manufacturers, automotive component suppliers 6. Specialty and Racing Vehicles: – Applications: Racing exhaust manifolds, turbocharger components, engine parts and heat exchangers for Formula 1, NASCAR and endurance racing teams – Customers: Formula 1 teams, NASCAR teams, IndyCar teams, luxury sports car manufacturers, aftermarket performance parts manufacturers |
| Customer Requirements in This Industry (Detailed) | 1. Performance Requirements:
– High-Temperature Oxidation Resistance: Must resist oxidation and scaling at temperatures up to 900℃ for the entire service life of the vehicle. – Carburization and Sulfidation Resistance: Must resist carburization and sulfidation from exhaust gases to prevent material embrittlement. – Stress Corrosion Cracking Resistance: Must be completely immune to chloride-induced SCC in high-temperature water and steam environments. – Thermal Fatigue Resistance: Must withstand millions of thermal cycles without cracking or failure. – Mechanical Strength: Must maintain sufficient strength and ductility across the entire operating temperature range (-40℃ to 900℃). – Creep Resistance: Must have adequate creep strength for long-term operation at temperatures above 600℃ (Alloy 800H/HT). 2. Manufacturing Requirements: – Consistent Quality: Must have uniform chemical composition (especially aluminum and titanium content) and mechanical properties across all batches. – Tight Dimensional Tolerances: Must meet strict dimensional tolerances to ensure proper fit and assembly in automated manufacturing lines. – Excellent Forgeability: Must be forgeable into complex shapes such as turbine wheels and flanges without cracking or defects. – Good Machinability: Must be easily machinable using conventional CNC equipment to produce precision components with tight tolerances. – Excellent Weldability: Must be compatible with high-speed automated welding processes with no post-weld heat treatment required. – Surface Quality: Must have a smooth, defect-free surface to prevent corrosion initiation and ensure proper sealing. 3. Supply Chain Requirements: – Just-In-Time (JIT) Delivery: Must provide reliable on-time delivery to support JIT manufacturing systems used by automotive OEMs. – Scalable Production: Must be able to scale production from prototype volumes to mass production volumes of millions of units per year. – Global Supply Capability: Must be able to supply to manufacturing facilities worldwide with consistent quality and lead times. – Inventory Management: Must offer inventory management solutions to reduce customer inventory costs and minimize supply chain risks. – Emergency Response: Must be able to respond quickly to unexpected demand spikes or supply disruptions. 4. Compliance Requirements: – IATF 16949 Certification: Must comply with the IATF 16949 automotive quality management standard. – Full Traceability: Must provide 100% traceability from raw material ore to finished product, including heat treatment records and test results. – Environmental Compliance: Must comply with global environmental regulations including REACH, RoHS and ELV (End-of-Life Vehicle). – Material Certification: Must provide comprehensive material test reports (MTR) with each shipment, including chemical analysis, mechanical properties and non-destructive test results. – Safety Standards: Must meet all applicable automotive safety standards for critical components. 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 warranty claims. – Value-Added Services: Must offer value-added services such as cutting, turning, milling and heat treatment to reduce customer manufacturing costs. – Long-Term Price Stability: Must provide stable pricing over the multi-year lifecycle of automotive programs. |
| Common Related Products in This Industry | 1. Alloy 800 Bars and Rods: Round bars, square bars, hexagonal bars and rectangular bars in various sizes and tempers
2. Alloy 800 Forgings: Custom forgings including flanges, turbine wheels, valve bodies and structural components 3. Alloy 800 Fasteners: Bolts, nuts, screws, studs, washers and rivets in all standard and custom sizes 4. Alloy 800 Wire: Solid wire and welding wire for manufacturing springs, fasteners and welding applications 5. Alloy 800 Welding Materials: Electrodes, wires and filler metals specifically formulated for welding Alloy 800 components 6. Alloy 800 Machined Components: Precision-machined parts including shafts, pins, valves and fittings 7. Alloy 800 Sheets and Plates: Used for manufacturing exhaust heat shields, catalytic converter housings and furnace components 8. Alloy 800 Tubing: Used for EGR coolers, exhaust gas recirculation lines and sensor tubing 9. Alloy 800 Powder: Used for additive manufacturing (3D printing) of complex automotive components 10. Custom Fabricated Assemblies: Pre-fabricated exhaust manifolds, turbocharger components and EGR system parts |
| Why Choose Us (Emily PIPE) | 1. 20+ Years of Automotive Alloy Expertise: We have been supplying high-performance Alloy 800 bar products to the global automotive industry for over 20 years, with deep understanding of the unique requirements of turbocharger and exhaust system applications.
2. IATF 16949 Certified: Our production facilities are fully certified to IATF 16949, the international standard for automotive quality management systems. 3. Dedicated Alloy 800 Bar Production Line: We operate a dedicated production line for automotive-grade Alloy 800 bars, ensuring strict control over chemical composition (especially aluminum and titanium content), mechanical properties and surface 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 automotive-grade bars. 5. Advanced Customization Capability: We can produce custom sizes, lengths, tempers and surface finishes according to your drawings and technical specifications, including precision-turned bars and forged blanks. 6. In-House Testing Laboratory: We operate a fully equipped testing laboratory that can perform all required automotive industry tests, including high-temperature oxidation testing, creep testing and non-destructive testing. 7. Global Automotive Supply Chain Experience: We have extensive experience supplying to global automotive OEMs and Tier 1 suppliers, with reliable logistics partners ensuring on-time delivery to manufacturing facilities worldwide. 8. Professional Automotive Technical Support: Our team of metallurgical engineers and automotive specialists provides expert guidance on material selection, design optimization and manufacturing techniques for high-temperature automotive applications. |
| Inquiry Guidance Words | 1. If you need high-quality automotive-grade Alloy 800 bars for your turbocharger system, exhaust system, EGR system or other high-temperature automotive application, please send us your specific requirements including dimensions, quantity, required temper, surface finish and delivery date, and we will provide a detailed quotation within 12 hours.
2. For any questions about material properties, high-temperature performance, welding guidelines or automotive industry certifications, our alloy specialists are available to assist you promptly. 3. Emily PIPE is your trusted partner for cost-effective high-performance automotive alloy solutions. Contact us today to discuss how our Alloy 800 bar products can help you develop more durable, reliable and efficient automotive components while optimizing your total project costs. |
| Supplementary Industry Information | 1. Comprehensive Test Reports: Each batch comes with a full Material Test Report (MTR) including chemical composition analysis (with verified aluminum and titanium content), mechanical properties testing, heat treatment records and non-destructive test results.
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 automotive 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 automotive components. 4. Specialized Automotive Packaging: We use protective packaging designed for bar products, including end caps, anti-corrosion wrapping and steel crates to prevent damage during transportation. 5. Prototype Development Support: We support small batch prototype orders with fast turnaround times to help you accelerate product development and testing for new automotive programs. 6. Mass Production Capability: We have the capacity to produce thousands of tons of Alloy 800 bars per year to support mass production automotive and commercial vehicle programs. 7. Dedicated After-Sales Service: We provide dedicated after-sales support for automotive customers, including technical assistance, quality issue resolution and supply chain management. 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. 9. Growing Market Demand: The global demand for Alloy 800 bars in the automotive industry is projected to grow at a CAGR of over 10% through 2030, driven by the widespread adoption of turbocharged engines and hybrid electric vehicles. |