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quality Alloy K500 Forged Steel WN Flanges with High Corrosion Resistance for Marine and Chemical Applications factory
quality Alloy K500 Forged Steel WN Flanges with High Corrosion Resistance for Marine and Chemical Applications factory
quality Alloy K500 Forged Steel WN Flanges with High Corrosion Resistance for Marine and Chemical Applications factory
quality Alloy K500 Forged Steel WN Flanges with High Corrosion Resistance for Marine and Chemical Applications factory
quality Alloy K500 Forged Steel WN Flanges with High Corrosion Resistance for Marine and Chemical Applications factory

Alloy K500 Forged Steel WN Flanges with High Corrosion Resistance for Marine and Chemical Applications

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seamless mild steel pipe

seamless steel tube

seamless pipe steel
Product Summary
Alloy K500 forged steel WN flanges offer high strength and excellent corrosion resistance in marine and chemical environments, with age-hardening from aluminum and titanium additions. Ideal for marine hardware, pump shafts, and oil & gas tools.

Product Details

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Alloy K500 forged steel WN flanges

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High corrosion resistance welding neck flanges

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Marine and chemical application WN flanges
Product Description
Alloy K500 Forged Steel WN Flanges
Alloy K500 (often written as Monel K-500 or UNS N05500) is a nickel-copper-based alloy with added aluminum and titanium that provides high strength and excellent corrosion resistance, particularly in marine and chemical environments.
Chemical Composition
Element Composition Range
Nickel (Ni) 63.0% minimum
Copper (Cu) 27.0–33.0%
Aluminum (Al) 2.30–3.15%
Titanium (Ti) 0.35–0.85%
Iron (Fe) 1.0–2.0%
Manganese (Mn) up to 1.5%
Silicon (Si) up to 0.5%
Carbon (C) up to 0.25%
Sulfur (S) up to 0.010%
Other elements residual, usually very low
Key Composition Benefits
High Nickel and Copper Content
The high Ni–Cu base provides excellent corrosion resistance in seawater, brine, and many acids and alkalis, while maintaining good mechanical properties across a wide temperature range.
Aluminum and Titanium Additions
The 2–3% Al and ~0.4–0.8% Ti serve as key strengthening elements. After age-hardening heat treatment, they form finely dispersed Ni₃(Al,Ti) precipitates that significantly increase strength and hardness while largely retaining corrosion resistance.
Controlled Impurities
Elements like carbon, sulfur, silicon, and manganese are tightly controlled to improve weldability, toughness, and resistance to stress-corrosion cracking. Low sulfur particularly enhances corrosion resistance in reducing environments.
Typical Applications
  • Marine hardware and fasteners
  • Pump shafts and impellers
  • Valve components and springs
  • Oil and gas tools exposed to sour and chloride-containing environments
Material Standards
When specifying material for design or procurement, always confirm exact composition ranges from the relevant standard or mill certificate. Common standards include:
  • UNS N05500
  • ASTM B865 (for bar, rod, wire, forging stock, etc.)
These standards provide the precise allowable ranges required for material certification as Alloy K500.

Mrs. amy

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