UNS No6022 Hastelloy C22 Spectacle Blind Flanges Manufacturer Stockist Exporter
We are manufacturers, stockist and exporters of UNS No6022 Hastelloy C22 Spectacle Blind Flanges in Mumbai.
Hastelloy C-22 (UNS N06022, W.Nr. 2.4602) spectacle blind flanges from Synergy Engineering Solution are designed for the harshest chemical environments where both oxidizing and reducing media may be present. Alloy C-22 is a nickel-chromium-molybdenum-tungsten superalloy with nominal chemistry that delivers exceptional resistance to general corrosion, pitting, crevice attack and stress-corrosion cracking — making it a top choice for isolation and testing duties in aggressive process lines.
Synergy manufactures C-22 spectacle blinds from certified plate or forgings using controlled fabrication and finishing processes to ensure flatness, correct face finish (RF / FF / RTJ options) and precise bolt-hole alignment. Each flange is supplied with full traceability: Material Test Certificate (MTC), heat number, and inspection reports as requested. Where required by clients or project specifications, Synergy can arrange third-party inspection, PMI verification, and EN 10204 3.1/3.2 certification to satisfy international procurement and owner requirements.
From a metallurgical standpoint, Hastelloy C-22’s high chromium (~20–22%), molybdenum (~12–14%), and significant tungsten additions give it superior resistance to oxidizing acids compared with many other nickel alloys, while its molybdenum/tungsten content also defends against reducing environments — a balance that makes C-22 more versatile than C-276 in many service conditions. This alloy’s nickel balance also provides good toughness and fabricability, so spectacle blinds can be produced, welded, and machined to project specifications when handled by experienced fabricators like Synergy.
Stockist & logistics: Synergy maintains strategic inventories of common sizes and pressure classes for Hastelloy C-22 spectacle blind flanges to support fast turnaround for maintenance spares and shutdown projects across the GCC (Oman, Qatar, Saudi Arabia, UAE, Kuwait), Europe (Spain, Germany), North America (USA, Canada) and Africa. For special sizes, large diameters or custom face/drillings, Synergy offers batch production and consolidated export shipments with compliant packaging and complete export paperwork (commercial invoice, packing list, MTC, COA) to simplify customs clearance and onsite handling. (company logistics and export practice).
Types Of Flanges manufacturer
Typical applications and performance guidance: Hastelloy C-22 spectacle blind flanges are widely used in chemical processing, chlorine and chlorinated-product handling, pickling/polishing lines, flue-gas desulfurization, pharmaceuticals and waste treatment where mixed acids, halides or variable oxidizing/reducing conditions occur. For engineers specifying C-22, Synergy can provide guidance on face type, gasket selection and bolt torque recommendations to ensure leak-tight performance and long service life under the anticipated pressure–temperature and chemical conditions.
Why source from Synergy Engineering Solution & Exporter: beyond alloy expertise and documented quality systems, Synergy combines competitive pricing for project volumes with flexible minimum order quantities for maintenance spares, responsive pre-sales technical support, and reliable international shipping lanes. Customers benefit from single-point procurement for material sourcing, inspection documentation and export logistics.
Specification
| Property | Details |
|---|---|
| Product Name | Hastelloy C22 Spectacle Blind Flange |
| Grade | UNS N06022 / WNR 2.4602 |
| Standard | ASTM B574 / ASME SB574, ASTM B575 / ASME SB575 |
| Manufacturing Type | Forged / Plate Cut / Machined |
| Face Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Size Range | ½” to 24” (DN15 to DN600) and custom sizes |
| Pressure Rating | Class 150 to 2500 / PN6 to PN400 |
| Certifications | EN 10204 3.1 / 3.2, NACE MR0175, ISO 9001 |
Chemical Composition (Typical)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | Balance (~56%) |
| Chromium (Cr) | 20.0 – 22.5% |
| Molybdenum (Mo) | 12.5 – 14.5% |
| Tungsten (W) | 2.5 – 3.5% |
| Iron (Fe) | 2.0 – 6.0% |
| Cobalt (Co) | ≤ 2.5% |
| Manganese (Mn) | ≤ 0.5% |
| Silicon (Si) | ≤ 0.08% |
| Carbon (C) | ≤ 0.015% |
| Phosphorus (P) | ≤ 0.02% |
| Sulfur (S) | ≤ 0.02% |
Mechanical Properties (Annealed Condition)
| Property | Value |
|---|---|
| Tensile Strength | 690 MPa (min) |
| Yield Strength (0.2% offset) | 283 MPa (min) |
| Elongation | ≥ 40% |
| Hardness | ≤ 95 HRB |
| Density | 8.69 g/cm³ |
| Melting Range | 1350 – 1390°C |
Equivalent Grades
| Standard | Grade |
|---|---|
| UNS | N06022 |
| Werkstoff Nr. | 2.4602 |
| Alloy | Hastelloy® C22 |
| EN / DIN | NiCr21Mo14W |
| JIS | NW6022 |
| ASTM | B574 / B575 / B619 / B622 |
Frequently Asked Questions (FAQ)
Q1: What are the advantages of Hastelloy C22 Spectacle Blind Flanges?
A: Hastelloy C22 flanges provide exceptional resistance to both oxidizing and reducing agents, chlorides, and a wide variety of strong acids, making them ideal for highly corrosive industrial applications.
Q2: Where are C22 Spectacle Blind Flanges commonly used?
A: They are used in industries such as chemical processing, marine, pulp and paper, pharmaceuticals, and pollution control systems, where corrosion resistance and reliability are crucial.
Q3: What face types are available for these flanges?
A: Synergy offers Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ) options depending on piping design and sealing requirements.
Q4: Does Synergy Engineering provide export documentation?
A: Yes, every export includes MTC (EN 10204 3.1/3.2), packing list, commercial invoice, and country-of-origin certificate. Third-party inspections can also be arranged upon request.
Q5: How does Hastelloy C22 compare with C276?
A: C22 offers better resistance to oxidizing environments compared to C276 due to its higher chromium content, making it more versatile in mixed acid service conditions.
In order to alter the physical and mechanical characteristics of metal without altering its original shape and size, we offer a variety of heat treatment services, including hydrogen heat treatment, HIC testing, blasting and painting, cutting, arc welding, epoxy cutting, PMI testing, hydro testing, NACE testing, and SSC testing. Although heat treatment is frequently linked to a metal's increased strength, it can also be used to change specific manufacturability goals, such enhancing machinability, formability, ductility, etc. The metal and heavy manufacturing sectors use our services. Customers have expressed great pleasure with our services' precision, efficacy, cost, and prompt delivery.
Flanges Testing Methods
Flanges Applications
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