Description
Product Detail
Slip on zirconium flanges are bored slightly larger than the pipe outside diameter so the flange slips over the pipe and is joined by fillet welds at the hub and back side. This design provides economical installation, reliable alignment and good performance in low to medium pressure piping systems handling highly corrosive fluids. Zirconium flanges are widely selected for acetic acid, hydrochloric acid, sulfuric acid, seawater, urea and high-purity chemical service due to their excellent corrosion resistance.
SASA FLANGE supplies zirconium slip-on flanges in standard and customized dimensions according to ASME B16.5, EN 1092-1, DIN, JIS and GB requirements. Each order can be supported with chemical analysis, mechanical testing, dimensional inspection, PMI testing, EN 10204 3.1 certificate and full heat number traceability to meet demanding project and end-user specifications.
- ✓Product Name: Slip On Zirconium Flange
- ✓Material Grade: Zirconium 702 / Zirconium 705
- ✓Product Type: Slip-On Flange
- ✓Main Feature: Excellent corrosion resistance, clean internal flow transition, economical installation
- ✓Applications: Chemical processing, acid service, seawater systems, power plants, marine and offshore piping
Product Parameters
| Product Name | Slip On Zirconium Flange |
| Material Grade | Zirconium 702, Zirconium 705, UNS R60702, UNS R60705 |
| Material Type | Reactive metal, corrosion-resistant zirconium alloy |
| Product Form | Forged flange, cut and machined flange, plate flange |
| Size Range | DN15 – DN600 (1/2 inch – 24 inch) |
| Pressure Class | Class 150 – 600 / PN10 – PN40 |
| Sealing Face | RF, FF, TG, MFM |
| Surface Treatment | Pickling, passivation, degreasing, machined finish, clean packed |
| Standard | ASME B16.5, 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 following chemical composition is for reference for common industrial zirconium flange grades. Actual composition may vary slightly by grade, raw material form and applicable ASTM or customer specification. Final supply chemistry shall comply with the relevant standard and be confirmed by the mill test certificate and inspection records provided with shipment.
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|---|
| Zirconium 702 | 0.05 max | 0.05 max | 0.05 max | 0.015 max | 0.015 max | – | – | – | Zr+Hf 99.2 min; Fe+Cr 0.2 max; H 0.005 max; N 0.025 max; O 0.16 max |
| Zirconium 705 | 0.05 max | 0.05 max | 0.05 max | 0.015 max | 0.015 max | – | 2.0-3.0 | – | Zr+Hf balance; Nb 2.0-3.0; Fe 0.2 max; H 0.005 max; N 0.025 max; O 0.18 max |
Mechanical Properties
Mechanical properties shown below are typical reference values for commonly supplied zirconium grades used in flange manufacturing. Actual results depend on grade, product form, forging ratio, heat treatment condition and section thickness. Certified test values can be provided according to the applicable ASTM material specification and project inspection requirements.
| Grade | Tensile Strength | Yield Strength | Elongation | Hardness | Density |
|---|---|---|---|---|---|
| Zirconium 702 | 380 MPa min | 205 MPa min | 16% min | 200 HB max | 6.51 g/cm3 |
| Zirconium 705 | 550 MPa min | 380 MPa min | 14% min | 250 HB max | 6.70 g/cm3 |
Common Size Table
| Size Range | Pressure Class | Sealing Face | Material | Availability |
|---|---|---|---|---|
| DN15 – DN50 | Class 150 – 600 | RF / FF | Zirconium 702 / 705 | Production |
| DN65 – DN300 | Class 150 – 600 | RF / TG / MFM | Zirconium 702 / 705 | Production |
| DN350 – DN600 | Class 150 – 300 | RF / FF | Zirconium 702 | Production |
| DN15 – DN600 | PN10 – PN40 | Type B RF / FF | Zirconium 702 / 705 | Made to Order |
Different Specifications Comparison
| Type | Description | Typical Use |
|---|---|---|
| ASME Slip-On Flange | Imperial size zirconium slip-on flange with hub and raised face or flat face to ASME drilling pattern | Process piping in chemical, offshore and power plants |
| EN 1092-1 Type 12 | European plate or forged slip-on style flange with PN rating and metric dimensions | Chemical plants, water treatment and European projects |
| DIN Slip-On Pattern | Metric flange configuration manufactured to DIN dimensional and drilling requirements | Replacement service and legacy European systems |
| JIS / GB Slip-On Flange | Metric slip-on zirconium flange produced to Japanese or Chinese industrial standards | Regional process systems and export fabrication packages |
Equivalent Standards and International Names
Slip on zirconium flanges can be produced to different international flange standards according to project location and piping design code. While flange dimensions and drilling vary by standard, the zirconium material grade is normally specified separately by ASTM or equivalent material designation. SASA FLANGE can match the required dimensional standard together with approved zirconium raw material grades.
| Standard / Region | Standard Code | Typical Grade / Equivalent |
|---|---|---|
| USA | ASME B16.5 | Zirconium 702 / Zirconium 705 to ASTM B493 or ASTM B551 |
| Europe | EN 1092-1 | Zr 702 / Zr 705, material supplied to ASTM equivalent on request |
| Germany | DIN 2527 / 2566 | Zirconium 702 / 705 for DIN drilling and facing dimensions |
| Japan | JIS B2220 | Zirconium 702 / 705 for JIS 5K, 10K, 16K applications |
| China | GB/T 9119 | Zr702 / Zr705 slip-on flange for PN series piping |
Production Process Flow
Manufacturing of zirconium slip-on flanges requires strict control of raw material identity, clean processing conditions and precision machining. SASA FLANGE follows documented production routes and inspection procedures to ensure dimensional accuracy, corrosion performance and traceability for each delivered flange.
- 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 zirconium forging billets, bars or plates from approved mills | Material certificate, grade verification and traceability |
| Forging | Hot working or profile cutting to obtain required flange blank | Controlled temperature, reduction ratio and contamination prevention |
| Heat Treatment | Stress relief or annealing according to grade and product condition | Temperature, atmosphere and holding time control |
| Machining | Sealing face, bore, hub, bolt holes and flange thickness machined to standard | Dimensional accuracy, concentricity and surface finish |
| Inspection | Final inspection before shipment | Dimension, surface, PMI, visual and document review |
Product Inspection
1. Chemical Composition Inspection
Chemical composition is verified against the specified zirconium grade using mill certificates and, when required, independent laboratory analysis. Key controlled elements such as oxygen, nitrogen, hydrogen, iron, chromium and alloying additions are checked to confirm compliance with ASTM material requirements and customer project specifications for corrosion-resistant service.
2. Mechanical Properties Testing
Mechanical testing is performed according to the applicable material standard and order requirements. Typical verification includes tensile strength, yield strength, elongation and hardness to ensure the zirconium flange material meets the required mechanical performance after forging and heat treatment. Test records can be linked to each heat number for full traceability.
3. Dimensional Inspection
Each slip on zirconium flange is inspected for outside diameter, bore size, thickness, bolt circle, bolt hole quantity, hole diameter, hub dimensions and facing details. Raised face or flat face finish is checked carefully to ensure proper gasket seating, fit-up and interchangeability with mating flanges produced to ASME, EN, DIN, JIS or GB standards.
4. PMI Testing and Hydrostatic Testing
PMI testing is available to confirm zirconium grade identity and prevent material mix-up in critical corrosive service. Hydrostatic testing is generally performed at the assembled piping or spool level, but additional pressure-related inspections can be arranged if specified. Supply documentation includes EN 10204 3.1 certificate, inspection reports and heat number traceability.
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
Slip on zirconium flanges are selected for piping systems where corrosion resistance is more critical than very high pressure capability. Their excellent compatibility with many aggressive acids, organic chemicals and seawater media makes them a preferred option for long service life, low contamination risk and reliable maintenance performance in demanding industrial plants.
| Industry | Typical Applications | Why This Product Is Used |
|---|---|---|
| Oil and Gas | Offshore seawater handling, produced water and corrosion-critical utility lines | Zirconium offers excellent resistance to seawater and chloride-rich environments |
| Chemical Processing | Acetic acid units, hydrochloric acid systems, urea, organic acid and solvent lines | Outstanding corrosion resistance and purity for aggressive chemical media |
| Power Generation | FGD systems, condenser auxiliary lines and chemical dosing systems | Long service life in corrosive wet process and utility applications |
| Water Treatment | Desalination, high-chloride brine systems and specialty chemical injection lines | High resistance to chloride attack and low maintenance requirements |
| Marine and Offshore | Seawater cooling, ballast treatment skids and offshore process modules | Reliable anti-corrosion performance in marine atmospheres and seawater service |
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 zirconium flange?
A: A slip on zirconium flange is a pipe flange with a bore slightly larger than the pipe outside diameter, allowing it to slide over the pipe before welding. It is typically fillet welded at two locations and used in corrosive process systems where zirconium’s excellent resistance to acids, chlorides and seawater is required.
Q: What materials are available for slip on zirconium flanges?
A: The most common materials are Zirconium 702 and Zirconium 705, usually supplied to ASTM material specifications such as ASTM B493 or ASTM B551 depending on raw material form. Zirconium 702 is widely used for high corrosion resistance, while Zirconium 705 offers higher strength for selected engineering conditions.
Q: What pressure class is supported?
A: SASA FLANGE commonly supplies slip on zirconium flanges in ASME Class 150, 300 and 600, as well as EN or DIN pressure ratings such as PN10, PN16, PN25 and PN40. Higher classes are less common for slip-on zirconium construction, but custom engineering review can be offered based on size and application.
Q: Can SASA FLANGE supply custom sizes?
A: Yes. SASA FLANGE can manufacture custom slip on zirconium flanges according to drawings or project specifications, including non-standard bore, special drilling, customized bolt holes, special facing types and unique dimensions. We can also match mating flange requirements in ASME, EN, DIN, JIS, GB or mixed-standard piping packages.
Q: What certificate is provided?
A: Standard supply can include EN 10204 3.1 material certificate together with mill test certificate, dimensional inspection report and heat number traceability. PMI testing records are available for positive material identification, and additional third-party inspection support can be arranged according to project requirements or end-user approval procedures.
Contact Us
If you are looking for flange slip on zirconium 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
