Inconel 690
Inconel 690 is a high-chromium nickel‑based alloy with exceptional resistance to stress corrosion cracking, especially in high‑temperature water and steam environments. It offers excellent oxidation resistance, good mechanical properties, and high structural stability. With high chromium content, it provides superior corrosion resistance in nuclear, chemical, and high‑temperature applications. It also features good formability and weldability, making it a preferred material for critical components requiring long‑term reliability in aggressive media.
  • 01
  • 02
  • 03
  • 04
  • 05
  • 06
  • 07
  • 08
  • 09
Send Us Online Message

Product Specification

Equivalent Grade

UNS: N06690

W.Nr.: 2.4642

Chinese Standard: GH3690

Standard

● Sheet/Plate: ASTM B168

Seamless Pipe: ASTM B167

Bar: ASTM B166

Complies with nuclear grade standards

Alloy TypeNickel-Chromium-Iron Alloy (High Chromium Content, Intergranular Corrosion Resistant Type)
StandardSheet, Bar, Pipe, Tube, Fittings, Flange, Welding Products, etc.
Key Properties

● High chromium content, excellent resistance to intergranular corrosion, pitting and crevice corrosion

Good high-temperature oxidation and creep resistance, stable mechanical properties

Excellent weldability, no heat treatment required after welding, suitable for nuclear grade scenarios

Applicable EnvironmentNuclear reactor environment, high-temperature steam environment, alkaline media, chloride-containing corrosive environment, chemical strong corrosion scenarios, nuclear power high-temperature and high-pressure scenarios
Typical ApplicationsNuclear Reactor Pressure Vessels, Steam Generator Heat Transfer Tubes, Nuclear Power Equipment Components, High-Temperature Heat Exchangers, Chemical Corrosion-Resistant Equipment, Nuclear Grade Pipes, etc.


Packaging and Shipping

  • 板2
  • 卷6
  • 管2
  • 棒4
  • 其他3

Strength Demonstration

  • 04
  • 01
  • 05
  • 08
  • 03
  • 02
  • 06
  • 07
  • 10
  • 09

Complete Products

We offer a comprehensive range of steel products for diverse industrial needs

Professional Services

We provide one-stop professional steel services with dedicated technical support

Customization Supported

We support tailored steel customization to match your specific project requirements

Quality Control

We implement strict full-process quality control for all steel products supplied

Fast Delivery

We ensure fast and on-time delivery for all your steel order requirements

After-Sales Service

We offer reliable all-round after-sales service for all steel product purchases

Production and Testing

View More
  • 02
  • 03
  • 01
  • 04
  • 07
  • 06
  • 05
  • 08

FAQ

Q: What is the terms of packing?
A:

Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirement.

Q: Could you provide the samples?
A:

Yes, we could provide the free samples on conditions it is available in stocks, however, the transportation fee is borne by buyer.

Q: How could you guarantee your products?
A:

Each piece of products is manufactured by certified workshops, inspected piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

Q: Do you make custom products?
A:

Yes, we could make custom products according to your specific requirements.

Q: Do you accept third-party inspection?
A:

We accept third-party inspections such as SGS, V-trust, TUV, DNV, etc.

Q: Can I go to your company to visit?
A:

Of course, we welcome customers from all over the world to visit our factory.

Q: What product information do I need to provide?
A:

You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Q: What is your delivery time?
A:

For stocks, we could transport the goods to loading port within 7 days after we received your deposit. For production period, it usually takes about 15 days-30 days after receiving the deposit.

Q: Do you have any discounts for large orders?
A:

Our company has the ability to supply large projects and offers excellent preferential policies for large orders.

Related Products

Request A Quote

We promise any of your information will be safe here. It will only be used for business between us

Submit