Incoloy 800 Lap Joint Flange JIS B2220 3”
📌 Product Name
Incoloy 800 Lap Joint Flange, JIS B2220, 3"
📄 Product Description
The Incoloy 800 Lap Joint Flange conforms to the JIS B2220 standard and is designed for 3-inch piping systems. It is used in conjunction with a stub end, offering ease of installation, alignment, and removal. Manufactured from high-temperature-resistant nickel-iron-chromium alloy Incoloy 800, this flange is ideal for corrosive and high-temperature environments.
⭐ Material Characteristics (Incoloy 800)
Composition: Approx. 32% Ni, 21% Cr, iron-based
Heat Resistance: Excellent creep-rupture strength from 600°C to 1100°C
Oxidation Resistance: Resists oxidation, carburization, and sulfidation
Structural Stability: Maintains austenitic microstructure at elevated temperatures
Weldability: Good weldability without the need for pre- or post-weld heat treatment
✅ Advantages
Enhances system flexibility; easy to align and disassemble
Excellent corrosion and high-temperature resistance
Cost-effective when used with stub ends (only the stub end needs to be high alloy)
Long service life and low maintenance
Fully compliant with Japanese Industrial Standards (JIS B2220)
⚠️ Disadvantages
The flange itself does not bear pressure; sealing depends on the stub end
Higher cost compared to carbon steel flanges
Not suitable for extremely high-pressure applications
🛠️ Applications
Petrochemical equipment
Heat treatment furnaces and heat exchangers
Nuclear and thermal power systems
High-temperature acid processing and chemical systems
Seawater desalination systems
High-temperature gas transfer and condenser lines
📐 Technical Specifications (Reference)
| Item | Specification |
|---|---|
| Size | 3 inch (DN80) |
| Standard | JIS B2220 |
| Material | Incoloy 800 (UNS N08800) |
| Type | Lap Joint Flange |
| Pressure Rating | 5K / 10K / 16K (based on request) |
| Surface Finish | Galvanized, Oiled, Polished, or Rough |
| Facing Type | RF (Raised Face) or FF (Flat Face) |
| Compliance | NACE MR0175, EN 10204 3.1/3.2 available |
💼 Our Advantages (SSM Strengths)
✅ Over 30 years of experience in alloy flange manufacturing and export
✅ Full stock availability and complete size range
✅ Mill Test Certificates (MTC) and third-party inspection reports provided
✅ Customizable to JIS, ANSI, DIN, EN, GB, and other standards
✅ Fast delivery and worldwide shipping
✅ Professional technical support and one-on-one service
✅ Strict quality control complying with ISO, PED, and NORSOK standards
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