718 Sheet

High-Performance 718 Sheet – Precision Nickel-Chromium Superalloy for Aerospace and High-Temperature Applications

TSM Technology is a manufacturer of premium 718 Sheet (Inconel 718, UNS N07718) for harsh situations requiring exceptional corrosion and temperature resistance from cryogenic to 704°C. Our 60,000㎡ facility with 8 manufacturing lines and 100+ precision machines supplies tight-tolerance sheets in thicknesses 0.5-50mm, hot-rolled, cold-rolled or annealed to ASTM B670, ASME SB670 and AMS 5596. This precipitation-hardenable nickel-chromium alloy is known for excellent high-temperature creep rupture and stress corrosion cracking resistance, as well as excellent weldability. The product is well suited for aerospace turbines, power generation and complex fabricated assemblies where structural integrity is required.

What are the 718 Sheets?

The product is a high-strength, precipitation-hardenable nickel-chromium superalloy for use demanding great corrosion resistance and harsh temperatures. It addresses essential industrial problems, including high-temperature creep rupture and stress-corrosion cracking. It differs from other superalloys in that it is good in weldability as it resists post-weld age cracking. It is the material of choice for complicated manufactured aerospace and power generation components where structural integrity is of the utmost importance.

Specifications

Physical and Chemical Properties

Standards for 718 Sheet

718 Sheet meets ASTM B670, ASME SB670 and AMS 5596 and is suitable for worldwide aerospace, petrochemical and power generating applications. TSM is AS9100D and ISO 9001 certified therefore quality control is followed from raw material procurement until final inspection.

What is the Features of 718 Sheet?

· High Strength: Exceptional yield and tensile strength through precipitation hardening

· Temperature Resistance: Stable performance from cryogenic to 704°C

· Excellent Weldability: Resists post-weld age cracking

· Corrosion Resistance: Superior protection against oxidation and stress-corrosion cracking

· Fatigue Resistance: Long service life under cyclic loading

· Dimensional Stability: Maintains tight tolerances after heat treatment

Application

718 Sheet is extensively used in:

· Aerospace: Turbine discs, engine components, thrust reversers

· Power Generation: Gas turbine components, nuclear reactor parts

· Oil & Gas: Downhole tools, wellhead equipment, valve seats

· Chemical Processing: Reactor vessels, piping systems

· Marine Engineering: Fasteners, springs, high-stress fittings

· Cryogenic Applications: Liquid fuel rocket motors, cryogenic storage

Production and Processing Technology

TSM Technology’s contemporary 60,000㎡ plant enables integration of whole process manufacturing. Ultra pure ingot casting is done via vacuum induction melting (VIM) and vacuum arc remelting (VAR). We have more than 100 equipment of accuracy, including as multi-pass hot rolling mills, cold rolling units and controlled environment annealing furnaces. The product is solution treated at 954–982°C followed by precipitation hardening at 718°C to get optimum mechanical characteristics. Custom measurements with ±0.05 mm accuracy are produced using advanced CNC cutting, sandblasting and surface finishing lines.

Production Process

1. Melting and Refining
2. Ingot Casting
3. Homogenization
4. Hot Rolling
5. Cold Rolling (if required)
6. Solution Treatment and Aging

Quality Inspection

At TSM Technology, we maintain rigorous quality control:

• 100% material traceability
• Advanced spectrometry for composition verification
• Mechanical testing for strength and ductility
• Non-destructive testing (ultrasonic, X-ray)
• Microstructure analysis

Every batch includes full traceability documentation (QAC/ITP/MTR).

Why Choose TSM Technology?

TSM Technology combines 14+ years of global export experience serving 70+ countries with AS9100D aerospace certification. Our vertically integrated supply chain sources only qualified high-purity raw materials, ensuring consistency. We offer:

· Fast technical consultation and quotation

· Custom thickness, width, and surface treatments

· Full certifications (MTC, SGS, EN 9120:2018, ISO 13485:2016)

· Timely delivery through global logistics network

· Free sample provision

· Professional after-sales support

Our Certificate

TSM Technology maintains internationally recognized quality certifications:

· AS9100D: Aerospace quality management for manufacturing titanium and nickel alloys

· EN 9120:2018: Aerospace distribution quality system

· ISO 13485:2016: Medical device quality management for titanium materials

· EN 9100:2018: Certified machining of aerospace-grade components

· ISO 9001: Comprehensive quality management system

Customer Cases

Our product is used in essential applications across the globe, including turbine components for aerospace manufacturers, downhole equipment for oil platforms in the North Sea and cryogenic rocket motor assembly. Our long-term relationships with Fortune 500 organizations are a testament to our dedication to quality, accuracy and dependability in the most demanding high temperature and corrosive situations.

Package and Shipping

Each product is covered with moisture-proof paper, foam cushioning, and wooden boxes following international shipment regulations. We offer marine freight, air express, and multimodal transport solutions. Full paperwork included with package: commercial invoice, packing list, MTC, SGS reports, certificate of origin. Our Hong Kong logistics center provides simple customs clearance and quick worldwide delivery.

FAQ

Q1: Is the product weldable in the aged condition?

A: While possible, we recommend welding the product in the annealed or solution-treated condition to prevent cracking, followed by post-weld heat treatment.

Q2: How does our product compare to 625 sheet?

A: The product is age-hardenable and offers significantly higher yield and tensile strength than 625, which is solid-solution strengthened.

Q3: What is the typical lead time for AMS 5596 certified product?

A: Depending on thickness, stock availability ranges from immediate to 12–16 weeks for custom mill runs.

Q4: Does product require vacuum heat treatment?

A: Yes, vacuum or inert gas atmosphere heat treatment is preferred to avoid depleted zones or oxidation layers.

Q5: Can product be used in hydrofluoric acid environments?

A: It shows good resistance, but specific corrosion rate testing is advised based on concentration and temperature variables.

Q6: What surface finishes are available for the product?

A: We provide hot-rolled, cold-rolled, annealed, sandblasted, and anodized finishes per your specifications.

Contact Us

Ready to explore how our 718 sheet can enhance your projects? Contact TSM Technology today for expert advice, custom solutions, and competitive pricing.

Email: info@tsmnialloy.com

Let's work together to meet your advanced material needs with our superior products!