Description
Product Detail
A slip on flange Incoloy is a ring-type flange that slides over the pipe and is secured by fillet welding at the inside and outside, providing simple installation, good alignment and cost-effective assembly. Incoloy slip-on flanges are selected for high-temperature and corrosive service where nickel-iron-chromium alloy performance is required, including petrochemical units, heat exchangers, offshore systems, flue gas desulfurization and chloride-containing process lines.
SASA FLANGE supplies Incoloy slip-on flanges in standard and customized dimensions according to ASME B16.5, ASME B16.47, EN 1092-1, DIN, JIS, GB and project drawings. All products can be delivered with chemical analysis, mechanical testing, dimensional inspection, PMI testing, EN 10204 3.1 certificate and full heat number traceability to meet strict global industrial procurement requirements.
- ✓Product Name: Slip On Flange Incoloy
- ✓Material Grade: Incoloy 800 / 800H / 800HT / 825
- ✓Product Type: Nickel Alloy Slip-On Flange
- ✓Main Feature: Excellent oxidation, carburization and corrosion resistance with easy pipe alignment and welding
- ✓Applications: Oil and gas, chemical processing, power generation, marine, offshore and water treatment
Product Parameters
| Product Name | Slip On Flange Incoloy |
| Material Grade | Incoloy 800, 800H, 800HT, 825 / UNS N08800, N08810, N08811, N08825 |
| Material Type | Nickel-Iron-Chromium Alloy |
| Product Form | Slip-On Raised Face / Flat Face / Ring Type Joint Flange |
| Size Range | DN15 – DN1500 (1/2 inch – 60 inch) |
| Pressure Class | Class 150 – 2500 / PN6 – PN100 |
| Sealing Face | RF, FF, RTJ, TG, MFM |
| Surface Treatment | Machined, pickled, passivated, protective oil on machined areas if required |
| Standard | ASME B16.5, ASME B16.47, EN 1092-1, DIN, JIS B2220, GB/T 9119 or customer specification |
| Inspection | Chemical Analysis, Mechanical Test, PMI Test, Dimensional, Hydrostatic |
| Certificate | EN 10204 3.1 Material Certificate available |
| Processing Service | Cutting, CNC Machining, Custom Drilling, Custom Size Processing |
Chemical Composition
The chemical composition below is a typical reference for common Incoloy grades used in slip-on flanges. Exact composition depends on the selected alloy grade and applicable product standard. Final supplied chemistry will follow the relevant ASTM or project specification and be confirmed by the mill test certificate and inspection records.
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|---|
| Incoloy 825 | 0.05 max | 0.50 max | 1.00 max | 0.03 max | 0.03 max | 19.5-23.5 | 38.0-46.0 | 2.5-3.5 | Fe balance, Cu 1.5-3.0, Ti 0.6-1.2, Al 0.2 max |
Mechanical Properties
Mechanical properties shown are typical minimum values for commonly specified Incoloy grades for flange manufacturing. Actual values may vary depending on grade, forging route, heat treatment condition and section thickness. Certified tensile and other test results can be provided according to order requirements and applicable standards.
| Grade | Tensile Strength | Yield Strength | Elongation | Hardness | Density |
|---|---|---|---|---|---|
| Incoloy 800H | 450 MPa min | 180 MPa min | 30% min | 170 HB max | 7.94 g/cm3 |
| Incoloy 825 | 586 MPa min | 241 MPa min | 30% min | 200 HB max | 8.14 g/cm3 |
Common Size Table
| Size Range | Pressure Class | Sealing Face | Material | Availability |
|---|---|---|---|---|
| DN15 – DN50 | Class 150 – 600 | RF | Incoloy 800 / 825 | Stock / Production |
| DN65 – DN300 | Class 150 – 1500 | RF / RTJ | Incoloy 800H / 825 | Stock / Production |
| DN350 – DN600 | Class 150 – 2500 | RF / RTJ | Incoloy 800HT / 825 | Production |
| DN700 – DN1500 | Class 150 – 900 | RF | Incoloy 800 / 800H | Made to Order |
Different Specifications Comparison
| Type | Description | Typical Use |
|---|---|---|
| Slip-On RF | Standard raised face slip-on flange for general process piping | Chemical plants, utility lines, low to medium pressure service |
| Slip-On FF | Flat face slip-on flange for flat-face connections and cast equipment | Water treatment, low-pressure process systems, pump connections |
| Slip-On RTJ | Ring type joint slip-on flange for higher pressure sealing reliability | Oil and gas, refinery and high-pressure process lines |
| Custom Drilled Slip-On | Non-standard drilling, thickness or facing according to drawing | Project-specific offshore, skid package and replacement applications |
Equivalent Standards and International Names
Slip-on flanges in Incoloy can be produced to major international dimensional standards while the alloy grade is specified separately by ASTM, ASME or project material requirements. Equivalent naming may vary by region, but SASA FLANGE matches dimensions, drilling, facing and material traceability to the required international standard and purchase specification.
| Standard / Region | Standard Code | Typical Grade / Equivalent |
|---|---|---|
| USA | ASME B16.5 | Incoloy 800 / 800H / 825 to ASTM B564 or forged equivalent project spec |
| Europe | EN 1092-1 | Nickel alloy slip-on flange in 1.4876 / alloy 800 or 2.4858 / alloy 825 by project specification |
| Germany | DIN 2527 / 2566 | DIN dimensions with Incoloy 800 or 825 material as specified |
| Japan | JIS B2220 | JIS drilling with Incoloy 800H or 825 equivalent nickel alloy |
| China | GB/T 9119 | GB flange dimensions with UNS N08800 / N08810 / N08825 material |
Production Process Flow
Manufacturing control is critical for nickel alloy flanges to maintain dimensional accuracy, alloy integrity and traceability. SASA FLANGE follows documented process control from raw material verification to final inspection and export packing.
- 1. Raw Material Selection
- 2. Forging / Cutting
- 3. Heat Treatment
- 4. Rough Machining
- 5. Finish Machining
- 6. Drilling
- 7. Surface Treatment
- 8. Inspection
- 9. Marking
- 10. Packing
- 11. Delivery
| Process Step | Description | Quality Control Point |
|---|---|---|
| Raw Material | Select certified forging billets or plates | Material certificate and traceability |
| Forging | Hot forging to achieve required shape | Forging temperature and reduction ratio |
| Heat Treatment | Solution annealing or stabilization as required by alloy grade | Temperature and holding time control |
| Machining | Sealing face, bolt holes, dimensions | Dimensional accuracy and surface finish |
| Inspection | Final inspection before shipment | Dimension, surface, PMI, hydrostatic |
Product Inspection
1. Chemical Composition Inspection
Chemical composition inspection is carried out to verify that the supplied Incoloy flange matches the specified alloy grade such as 800H or 825. Testing is performed through mill certification review and, when required, spectrometer analysis to confirm key elements including nickel, chromium, molybdenum, titanium and carbon within the applicable standard limits.
2. Mechanical Properties Testing
Mechanical testing confirms that the flange material achieves the required tensile strength, yield strength, elongation and hardness for service conditions. Test results may be taken from the original forged material heat or supplementary testing as requested. This ensures the Incoloy slip-on flange performs reliably under pressure, temperature fluctuation and corrosive process environments.
3. Dimensional Inspection
Dimensional inspection covers outside diameter, bore size, flange thickness, hub profile where applicable, bolt circle, bolt hole diameter and quantity, facing height and overall standard tolerances. Sealing face finish is also checked to ensure proper gasket seating. Inspection is performed according to ASME, EN, DIN, JIS, GB or approved customer drawings before shipment.
4. PMI Testing and Hydrostatic Testing
Positive Material Identification is available to verify the nickel alloy grade and prevent material mix-up in critical projects. Hydrostatic or system pressure testing can be arranged when required by contract or project documentation. SASA FLANGE supplies inspection records together with EN 10204 3.1 certificate, heat number traceability and relevant dimensional and material verification reports.
Product Packaging
- ✓Wooden Case Packaging: Suitable for high-pressure and large-diameter products
- ✓Pallet Packing with Shrink Wrap: Suitable for batch shipments and standard sizes
- ✓Anti-rust Oil Coating + Waterproof Paper: Used for ocean freight protection
- ✓Individual Plastic Bag + Carton: Used for small fittings and threaded products
- ✓Clear Marking: Grade, size, pressure class, heat number and PO number
Applications
Incoloy slip-on flanges are widely used where corrosion resistance, high-temperature stability and reliable welded assembly are required. Their nickel alloy composition makes them suitable for aggressive media, oxidizing and reducing environments, and elevated service temperatures across major industrial sectors.
| Industry | Typical Applications | Why This Product Is Used |
|---|---|---|
| Oil and Gas | Produced water systems, sour service auxiliary lines, offshore piping and process skids | Provides corrosion resistance and dependable flange connection in demanding environments |
| Chemical Processing | Acid handling, fertilizer plants, phosphoric and sulfuric service, heat exchangers | Incoloy grades offer strong resistance to chemical attack and stress corrosion cracking |
| Power Generation | Boiler auxiliary lines, high-temperature ducts, FGD systems and condensate units | Suitable for elevated temperature service and oxidation resistance |
| Water Treatment | Desalination units, brine lines, aggressive water handling and chemical dosing systems | Nickel alloy performance helps resist chloride-bearing media and corrosive chemicals |
| Marine and Offshore | Seawater piping, topside process modules and offshore utility systems | Combines corrosion resistance with practical installation for marine atmospheres |
Why Choose SASA FLANGE?
- ✓Professional manufacturer of Slip-On Flanges for global industrial projects
- ✓Customized size, pressure class and material grade according to drawings
- ✓Full standard support: ASME, EN, DIN, JIS, GB, GOST and customer specifications
- ✓Material traceability with heat number control and EN 10204 3.1 material certificate
- ✓Chemical analysis, mechanical testing, PMI testing, hydrostatic and dimensional inspection
- ✓Stock availability for standard items, lead time 3-7 days; custom production 15-30 days
- ✓Export-grade packaging for sea, air and land transportation
- ✓15+ years experience supplying 50+ countries worldwide
FAQ
Q: What is a slip on flange Incoloy?
A: A slip on flange Incoloy is a nickel alloy flange designed to slide over the pipe before welding on both the inside and outside. It is used where easy alignment, convenient installation and corrosion resistance are required. Compared with carbon steel or stainless steel flanges, Incoloy versions are selected for more demanding chemical and high-temperature service.
Q: What materials are available for slip on flange Incoloy?
A: SASA FLANGE commonly supplies Incoloy slip-on flanges in Incoloy 800, 800H, 800HT and 825, corresponding to UNS N08800, N08810, N08811 and N08825. Material selection depends on operating temperature, corrosion media and project specification. We can also review special nickel alloy requirements based on drawings, standards and end-user data sheets.
Q: What pressure class is supported?
A: Slip-on flanges in Incoloy are available in ASME Class 150, 300, 400, 600, 900, 1500 and 2500, depending on size and dimensional standard. EN and DIN pressure ratings such as PN6, PN10, PN16, PN25, PN40, PN63 and PN100 are also supported. The final pressure class should be selected according to design code and operating conditions.
Q: Can SASA FLANGE supply custom sizes?
A: Yes. SASA FLANGE can manufacture custom Incoloy slip-on flanges according to customer drawings or project specifications. We support non-standard bore sizes, special drilling patterns, custom flange thickness, RTJ or raised face machining, and alternative dimensions to ASME, EN, DIN, JIS or GB standards. Customized marking, packaging and inspection documentation are also available.
Q: What certificate is provided?
A: Standard supply includes EN 10204 3.1 material certificate with heat number traceability. Depending on order requirements, we can also provide mill test certificate, PMI testing report, dimensional inspection report, hardness or mechanical test records, and hydrostatic or additional NDE documentation where applicable. This helps international buyers meet project QA and end-user approval requirements.
Contact Us
If you are looking for slip on flange incoloy or related custom flange products, please contact SASA FLANGE with your required size, pressure class, material grade, standard, surface treatment, quantity and inspection requirements. Our team will provide professional technical solutions and competitive quotation within 24 hours.
- 📧 Email: sales@sasaflange.com
- 📱 WhatsApp: +86 13764965049
- ☎️ Tel: +86 21 52236361
- 🌐 Website: www.sasaflange.com
