What is NiAlBr (Nickel Aluminium Bronze)?

Nickel Aluminium Bronze (NiAlBr) is a copper-based alloy containing aluminium, nickel, iron, and manganese. ASTM B148 C95800 grade offers excellent corrosion resistance in seawater, making it ideal for marine, desalination, and offshore applications.

What NiAlBr valve types are available?

We supply NiAlBr Ball Valves, Check Valves (swing, dual plate), Butterfly Valves (wafer, lug), Gate Valves, Globe Valves, and Diaphragm Valves in sizes from 1/2 inch to 48 inches.

Where are NiAlBr valves used?

NiAlBr valves are used in desalination plants (SWCC, DEWA), offshore platforms, shipyards, LNG terminals (Ras Laffan, Jubail), power plant cooling systems, and marine vessels for seawater service.

Nickel Aluminium Bronze (NAB) Valves

Name: Nickel Aluminium Bronze (NiAlBr) Valves
Brand: Supreme Valves India
Availability: InStock
Rating: 4.8 (127 reviews)

Premium Grade ASTM B148 C95800 / C95500 Valves for Marine & Seawater Service

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Superior Corrosion Resistance for Marine Environments

Nickel Aluminium Bronze (NAB) is the material of choice for aggressive seawater environments where standard stainless steels fail. Supreme Valves India manufactures high-performance NAB valves conforming to ASTM B148 UNS C95800, offering exceptional resistance to chloride stress corrosion cracking, cavitation, and biofouling.

Our NAB valves are widely used in offshore platforms, naval vessels, desalination plants, and coastal power stations.

Why Choose NAB (C95800)?

Seawater Corrosion Resistance

Forms a protective oxide film that self-heals, providing longevity in aerated seawater.

Anti-Biofouling

Naturally inhibits the growth of marine organisms like barnacles and algae, maintaining flow efficiency.

Cavitation Resistance

Superior to Stainless Steel and Monel in resisting damage from high-velocity turbulent flow.

Our NAB Valve Range

NAB Butterfly Valves

Concentric and Double Offset designs for large bore seawater cooling lines.

Sizes: 2" to 48"
Pressure: PN10 / PN16 / Class 150

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NAB Gate & Globe Valves

API 600 / BS 1873 designs for isolation and throttling service.

Trim: Monel or NAB
Ends: Flanged RF / FF

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NAB Check Valves

Swing Check and Dual Plate Check valves to prevent backflow in saline systems.

Type: Swing, Dual Plate, Lift
Standard: API 594 / API 6D

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FAQ: NAB Valves

What is the difference between C95800 and C95500?

C95800 (Alpha-Beta) is optimized for seawater corrosion resistance and weldability, making it standard for marine valves. C95500 offers higher strength but lower corrosion resistance.

Can NAB valves be used with firewater systems?

Yes, NAB is widely used in offshore firewater deluge systems due to its reliability in stagnant seawater conditions.