Inconel 690 Sheet

Inconel 690 Sheet: Premium Nickel-Chromium Alloy for Critical Applications

Are you looking for superior corrosion resistance in high-temperature environments? Inconel 690 Sheet works very well in nuclear power, chemical processing, and other tough industry settings. This nickel-chromium-iron superalloy is very stable at high temperatures and very good at resisting stress corrosion cracking. TSM Technology makes products with great care that meet the highest international standards. This makes sure that your important systems work safely and reliably even in the worst circumstances.

What are the Inconel 690 Sheet?

Our products are high-quality nickel-based superalloy plates that have about 60% nickel, 30% chromium, and 10% iron. Because of its carefully balanced makeup, this material is perfect for harsh settings. The high amount of chromium creates an oxide layer that protects against rust and oxidation at high temperatures.

These sheets excel in nuclear power applications, particularly as steam generator tubing material. The alloy's unique metallurgical structure provides superior resistance to stress corrosion cracking compared to other nickel alloys. Your operations benefit from extended service life and reduced maintenance requirements.

Specification

Physical and Chemical Properties

Product Standards

Our Inconel 690 Sheet manufacturing strictly follows these international standards:

• ASTM B443: Standard specification for nickel-chromium-iron alloy sheet
• ASME SB443: Pressure vessel code requirements
• EN 10095: European standard for heat-resistant steels and nickel alloys
• RCC-M: French nuclear code for materials
• JIS G4901: Japanese industrial standard

All products include complete material traceability certificates and third-party testing reports.

What is the features of the product?

• Superior Corrosion Resistance: The high chromium content creates an ultra-stable passive film that resists various corrosive media, including nitric acid and high-temperature water.
• Stress Corrosion Cracking Immunity: Unlike other alloys, this material shows exceptional resistance to primary water stress corrosion cracking in nuclear environments.
• High-Temperature Stability: Maintains excellent mechanical properties and oxidation resistance at temperatures up to 1000°C.
• Excellent Weldability: Easy to weld using standard techniques without compromising corrosion resistance properties.
• Thermal Stability: Resists carbide precipitation and maintains ductility after long-term exposure to elevated temperatures.

Application

• Nuclear Power Industry: Steam generator tubes, reactor vessel internals, and primary loop components where radiation resistance matters.
• Chemical Processing: Equipment handling nitric acid, mixed acids, and high-temperature chemical reactions requiring long-term reliability.
• Petrochemical Plants: Reformer tubes, cracking furnaces, and heat exchangers operating in severe service conditions.
• Environmental Systems: Waste incineration plants, flue gas desulfurization equipment, and pollution control systems.
• Marine Applications: Seawater-cooled heat exchangers and offshore platform components exposed to chloride environments.

Production and Processing Technology

TSM Technology employs advanced vacuum induction melting followed by electroslag remelting for superior cleanliness. Our controlled atmosphere hot rolling process ensures uniform grain structure and optimal mechanical properties.

Cold rolling operations achieve precise thickness control within ±0.05mm tolerance. Solution annealing at 1050°C followed by rapid cooling provides the ideal metallurgical condition. Advanced surface finishing techniques deliver various surface conditions to meet your specific requirements.

Quality control includes ultrasonic testing, eddy current inspection, and comprehensive chemical analysis throughout production.

What is the production process of the product?

• Raw Material Preparation: Premium nickel, chromium, and iron are carefully selected and analyzed before melting.
• Vacuum Melting: Induction melting under controlled atmosphere prevents contamination and ensures chemical homogeneity.
• Hot Rolling: Multi-pass rolling at controlled temperatures develops the desired microstructure and mechanical properties.
• Solution Treatment: Heating to 1050°C followed by rapid cooling dissolves carbides and optimizes corrosion resistance.
• Cold Rolling: Precision rolling achieves final thickness with excellent surface quality and dimensional accuracy.
• Final Annealing: Stress relief and recrystallization treatment provides optimal ductility and workability.

Quality Inspection

Our comprehensive quality system ensures every product meets your exact specifications. We perform 100% chemical composition verification using optical emission spectrometry.

Mechanical property testing includes tensile strength, yield strength, and elongation measurements. Non-destructive testing encompasses ultrasonic examination and eddy current inspection for internal soundness.

Corrosion resistance verification through standardized testing confirms performance in service environments. Dimensional inspection using coordinate measuring machines guarantees precise tolerances.

All documentation includes material test certificates, third-party inspection reports, and complete traceability records.​​​​​​​

Factory

TSM Technology operates a state-of-the-art manufacturing complex featuring dedicated sheet production lines with advanced rolling mills and heat treatment facilities. Our quality laboratory includes spectrometers, tensile testing machines, and corrosion testing equipment.

Temperature-controlled warehouses maintain material integrity during storage. Automated material handling systems ensure efficient processing and minimize contamination risks throughout production.

Package and Shipping

Each product receives protective packaging using moisture-resistant materials and wooden crates for international shipping. Sheets are separated with protective paper and secured to prevent movement during transport.

Sea freight typically takes 15-30 days depending on destination. Air freight available for urgent orders with 3-7 day delivery. All shipments include detailed packing lists and handling instructions.

Export documentation includes commercial invoices, packing lists, certificates of origin, and material test reports as required.

FAQ

Q: What makes Inconel 690 superior to other nickel alloys?

A: The optimized nickel-chromium ratio provides exceptional stress corrosion cracking resistance while maintaining excellent high-temperature properties and weldability.

Q: Can you provide custom sizes beyond standard dimensions?

A: Yes, our flexible manufacturing process accommodates special widths, lengths, and thickness requirements with minimal lead time impact.

Q: What quality documentation do you provide?

A: Complete material traceability including mill test certificates, chemical analysis, mechanical property results, and third-party inspection reports.

Q: How do you ensure consistent quality across production batches?

A: Our integrated quality management system includes incoming material verification, in-process monitoring, and final inspection with statistical process control.

Q: What are typical lead times for standard sheet sizes?

A: Standard sizes typically ship within 10-25 days. Custom specifications may require additional 5-10 days depending on complexity and current production schedule.

Contact Us

Ready to enhance your operations with premium Inconel 690 Sheet? Our technical team stands ready to discuss your specific requirements and provide detailed quotations. Email: info@tsmnialloy.com

Contact us today for technical specifications, pricing information, and delivery schedules. Let TSM Technology be your trusted partner for superior nickel alloy solutions.