ASME B16.5 B16.47 Inconel Alloy Incoloy825 Uns No8825 Monel Alloy RF FF 150# 6" Forged So Flange Stainless Steel Slip On Flange
ASME B16.5 / B16.47 Inconel, Incoloy 825, Monel, and Stainless Steel 6" RF/FF Forged Slip-On Flanges | SSM
SSM is a trusted global manufacturer and supplier of high-performance alloy and stainless steel slip-on flanges designed to meet ASME B16.5 and B16.47 standards. These flanges are widely used in chemical, petrochemical, offshore, and marine applications where corrosion resistance, mechanical strength, and reliability are critical.
1. Product Overview
The 6" Forged Slip-On Flange (SO Flange) is designed for ease of installation and alignment on pipelines. Available in nickel alloys (Inconel, Incoloy 825, Monel) and stainless steel, these flanges can handle high-pressure and corrosive environments.
Standard: ASME B16.5 / B16.47
Material Options:
Inconel Alloy (UNS N06600/N06625)
Incoloy 825 (UNS N08825)
Monel Alloy (UNS N04400)
Stainless Steel (304, 316, 316L, 321)
Size: 6" (DN150)
Pressure Rating: 150#
Facing Type: RF (Raised Face) / FF (Flat Face)
Form: Slip-On (SO) Forged Flange
2. Material Properties
Inconel Alloy (UNS N06625)
Excellent oxidation and corrosion resistance in high-temperature environments
High tensile and yield strength at elevated temperatures
Incoloy 825 (UNS N08825)
Resistant to strong acids, seawater, and industrial chemicals
Superior stress corrosion cracking resistance
Monel Alloy (UNS N04400)
Exceptional resistance to seawater and hydrofluoric acid
High toughness and fatigue strength
Stainless Steel (304 / 316 / 316L / 321)
Good corrosion resistance and mechanical strength
Suitable for general industrial applications
3. Mechanical Properties (Typical)
| Material | Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|---|
| Inconel 625 | ≥ 827 MPa | ≥ 414 MPa | ≥ 30% | 95 HRB |
| Incoloy 825 | ≥ 585 MPa | ≥ 205 MPa | ≥ 30% | 90 HRB |
| Monel 400 | ≥ 550 MPa | ≥ 240 MPa | ≥ 30% | 80–90 HRB |
| 316/316L | ≥ 515 MPa | ≥ 205 MPa | ≥ 35% | ≤ 217 HB |
4. Key Features
✅ High Corrosion Resistance: Performs reliably in acidic, marine, and chloride-rich environments
✅ High-Temperature Strength: Maintains mechanical integrity under extreme heat
✅ Easy Installation: Slip-on design simplifies pipeline assembly
✅ Customizable: RF or FF facing options to match flange connections
✅ Durable and Reliable: Forged construction ensures long service life
5. Advantages and Limitations
Advantages:
Resistant to oxidation, acids, and stress-corrosion cracking
Long service life in harsh environments
Easy installation and alignment on pipelines
Limitations:
Higher cost than standard carbon steel flanges
Requires skilled welding or bolting for alloy materials
6. Applications
Oil & Gas Pipelines
Chemical & Petrochemical Plants
Offshore & Marine Platforms
Heat Exchangers & Pressure Vessels
Power Generation Systems
Seawater & Desalination Plants
7. Why Choose SSM
30+ years of experience in alloy and stainless steel flange manufacturing
Certified ISO 9001 and EN 10204 3.1
Full compliance with ASME B16.5 / B16.47 and MSS SP-44
Advanced forging, CNC machining, and NDT inspection
Global delivery and custom design services available
8. Conclusion
The SSM 6" RF/FF Forged Slip-On Flanges made of Inconel, Incoloy 825, Monel, or Stainless Steel offer excellent corrosion resistance, high strength, and easy installation, making them ideal for critical pipelines and industrial applications.
📩 Contact SSM today for a quotation or custom design for your high-performance alloy or stainless steel flanges.
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