quality Alloy 400 ASTM B546 Slip On Forged Flange for Offshore Petroleum Engineering factory

Alloy 400 ASTM B546 Slip On Forged Flange for Offshore Petroleum Engineering

Alloy 400 ASTM B546 Slip On Forged Flanges deliver outstanding seawater corrosion resistance, high strength, and reliable performance for demanding marine and offshore petroleum engineering applications. Precision-forged to standards, they ensure leak-tight connections, reduced maintenance, and safer operations in harsh environments.

Product Description

Alloy 400 ASTM B546 Slip On Forged Flanges

Power your offshore projects with flanges engineered to perform where others fail. Alloy 400 ASTM B546 Slip On Forged Flanges are designed specifically for the extreme demands of marine and offshore petroleum engineering – where corrosion, pressure, and reliability are non‑negotiable.

Key Performance Features

Outstanding seawater and salt‑spray corrosion resistance
Excellent performance in sour gas and harsh offshore environments
High strength and toughness across a wide temperature range
Reliable, leak‑tight connections for critical piping systems

Why Choose Our Alloy 400 Flanges

Offshore‑focused expertise: We specialize in nickel alloy flanges for offshore petroleum engineering, so every flange is designed with real field conditions in mind.
Consistent, high‑quality forging: Precision‑forged to ASTM B546 standards for structural integrity, dimensional accuracy, and long service life.
Reduced downtime and maintenance: Superior corrosion resistance helps extend inspection intervals and lower lifecycle costs.
Safer, more reliable operations: Dependable performance under high pressure and in aggressive media supports safer platforms and pipelines.

When your project is offshore, your margins for error are zero. Choose Alloy 400 ASTM B546 Slip On Forged Flanges that are engineered, tested, and trusted for demanding marine oil applications.

Specify our Alloy 400 flanges in your next offshore project or contact our team now for technical support, documentation, and a tailored quotation.

Alloy 400 (also known as Monel 400 or UNS N04400) is a nickel–copper alloy widely used for its excellent corrosion resistance, especially in seawater and acidic environments.

Its typical chemical composition is approximately:

• Nickel (Ni): 63.0% min
• Copper (Cu): 28–34%
• Iron (Fe): up to about 2.5%
• Manganese (Mn): up to about 2.0%
• Silicon (Si): up to about 0.5%
• Carbon (C): up to about 0.3%
• Sulfur (S): very low, usually max 0.024%

Key points that make Alloy 400 distinctive:

High nickel and copper content
The alloy is essentially a solid solution of nickel and copper, both of which are completely miscible. This gives it:
• Very good resistance to seawater and brine
• Excellent resistance to many acids and alkalis
• Good mechanical properties over a wide temperature range
Low impurity levels
Elements like carbon, sulfur, and silicon are tightly controlled at low levels to maintain:
• Good toughness
• Weldability
• Stable corrosion resistance
Standards and designations
You’ll often see Alloy 400 specified by:
• UNS: N04400
• W.Nr.: 2.4360 / 2.4361
• Trade name: Monel 400

If you are selecting an alloy for marine service, chemical processing, or oil & gas applications where chloride stress-corrosion cracking and general corrosion are concerns, the chemical composition of Alloy 400 is a strong reason it’s so widely trusted.