316 Stainless Steel Flange Nut A4-80 For Marine And Offshore Applications

Name: "316 Stainless Steel Flange Nut A4-80 For Marine And Offshore Applications"
Rating: 5 (127 reviews)

SKU: 0473390493

Modelo: hex nut ,coupling nut, weld nut, flange nut, nylon nut. heavy nut,Jam nut, castle nut, slot nut, self-locking nut

UHC fastener and hardware

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316 Stainless Steel Flange Nut (A4-80) for Marine and Offshore Use

Our 316 stainless steel flange nuts offer outstanding resistance to seawater and aggressive chemicals, making them a preferred choice for marine and offshore applications. With A4-80 strength grade and available in M2 to M64, these nuts meet ISO, DIN, ASTM, and JIS standards, ensuring reliable performance in corrosive environments.

Key Features

Superior seawater corrosion resistance: 316 stainless steel provides excellent protection against chloride-induced corrosion, ideal for marine and offshore structures.
High strength A4-80 grade: Tensile strength up to 800 MPa, ensuring secure fastening under high loads.
Integrated flange design: Distributes load over a wider area, reducing the risk of damage to mating surfaces.
Wide size range: M2 – M64, with full customization for other dimensions.
Multiple surface treatments: Natural finish, passivation, or Dacromet coating to enhance corrosion protection.

Technical Specifications

Dimensions	M2 – M64
Strength Grades	A4-70, A4-80
Thread Tolerance	6H / 2B / 3B
Raw Materials	316 stainless steel, also available 304, duplex, nickel alloys
Surface Treatments	Natural, passivation, Dacromet, adhesive pre-coating
Standards	ISO, DIN, ASTM, ASME, ANSI, JIS

Models and Options

Types: hex nut, coupling nut, weld nut, flange nut, nylon nut, heavy nut, jam nut, castle nut, slot nut, self-locking nut.

Custom sizes and dimensions supported.

Materials and Structure

316 stainless steel is a molybdenum-bearing austenitic steel that offers superior corrosion resistance compared to 304. It is particularly effective in chloride environments. The flange nut design incorporates a wide bearing surface to prevent loosening and reduce stress.

Applications

Widely used in marine & offshore, petrochemical, desalination, and water treatment facilities. Also suitable for power generation and industrial machinery in corrosive environments.

Customization

We provide OEM services for custom lengths, materials, and finishes. Strict pre-delivery inspection ensures each batch meets your specifications.

Case Study

Our 316 stainless steel flange nuts have been supplied to marine equipment manufacturers, demonstrating resistance to seawater corrosion over a decade of service. Customers report greatly reduced maintenance costs.

FAQ

What is the difference between A4-70 and A4-80?

A4-70 has a tensile strength of 700 MPa, while A4-80 has 800 MPa. A4-80 is commonly used for higher strength requirements.

Can flange nuts be used in high-vibration environments?

Yes, the flange design provides additional resistance to loosening under vibration. For extreme conditions, we recommend self-locking versions.

Do you supply nuts with Dacromet coating?

Yes, Dacromet coating is available for enhanced corrosion protection, especially for offshore applications.

What is the maximum size available?

Standard range goes up to M64, but larger sizes can be custom-made upon request.

Are your products compliant with JIS standards?

Yes, we manufacture to ISO, DIN, ASTM, ASME, ANSI, and JIS standards.

Can you provide samples for testing?

Please contact us with your specifications to request samples.

What is the production capacity?

Our company produces 25,000 tons of stainless and special materials annually.

Inquiry Information

Contact: Michael Shen

Email: michaelshen@uhc-group.com.cn / sales@uhc-group.com.cn

Tel/WhatsApp: +86 13575349247

Website: www.jxuhc.com

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