High-Performance Nickel Overlay Flanges – Superior Corrosion and Wear Resistance

SSM offers high-quality Nickel Overlay Flanges, specifically designed for the oil & gas, marine, and highly corrosive environments. The overlay layer is made of advanced nickel-based alloys, providing excellent corrosion resistance, wear resistance, and high-temperature performance.

Material and Chemical Composition

Base Material: Carbon steel or alloy steel (e.g., ASTM A105 / A182 F304/F316)
Cladding Material: Nickel-based alloy (Ni-Cr-Fe series)

Typical chemical composition of the overlay:

Nickel (Ni): 60–70%

Chromium (Cr): 20–25%

Iron (Fe): Balance

Trace elements: Molybdenum (Mo), Titanium (Ti), etc.

Overlay thickness typically ranges from 1–5 mm and can be customized according to customer requirements.

Performance Features

Excellent Corrosion Resistance: Resistant to saltwater, hydrogen sulfide, and acidic media

Wear and Impact Resistance: High hardness overlay layer extends flange service life

High-Temperature Performance: Suitable for long-term use in 500–900°C environments

Welding Reliability: Strong metallurgical bond between overlay and base material ensures mechanical strength

Flange Types and Standards

SSM provides a wide range of nickel overlay flanges to meet various piping system requirements:

Types: Weld Neck (WN), Slip-On (SO), Blind (BL), Socket Weld (SW), Ring-Type Joint (RTJ)

Size Range: 1/2″–72″ or DN15–DN1800

Standards: ASME B16.5, ASME B16.47, API 6A

Pressure Rating: 150#–2500#

Typical Applications

Nickel overlay flanges are widely used in:

Highly corrosive pipelines in chemical and petrochemical plants

Offshore platforms and marine pipelines exposed to high-salinity environments

Pipelines carrying hydrogen sulfide (H2S) and acidic media

High-temperature, high-pressure applications in chemical and power industries

Why Choose SSM

Full range of nickel overlay flanges with customization options

Base material options: Carbon steel or stainless steel + nickel alloy overlay

Complete inspection and certification available (Material Test Report / NDT)

Experienced in providing flanges for extreme operating conditions

SSM Nickel Overlay Flanges ensure safe and reliable operation of piping systems under extreme corrosion, high temperature, and high-pressure conditions.

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