UNS N08800, more commonly known as Inconel® 800 (also referred to as Alloy 800), is an iron-nickel-chromium alloy known for its strong resistance to oxidation and high-temperature stability. When utilized in socket weld SWRF (spigot weld / raised face) flanges, the alloy’s thermal strength, oxidation resistance and creep properties make it a suitable choice for high-temperature piping systems—such as in petrochemical, power generation, chemical process, or furnace systems. The socket weld joint configuration provides compact, leak-resistant connections especially in moderate-size piping runs, offering a robust alternative to butt-weld in certain installations.
At Synergy Engineering Solution, we take pride in manufacturing, stocking and exporting precision-finished UNS N08800 socket weld SWRF flanges with full process control and a commitment to quality. Beginning from certified alloy 800 forgings or rounds, we carry out forging, heat treatment (solution annealing), machining, and final finishing under strict quality protocols. We maintain traceability so that each flange is accompanied by a mill test certificate (MTC), and we also support non-destructive testing (such as dye-penetrant, ultrasonic testing) or third-party inspection, depending on project requirements. We ensure the socket bore, spigot depth, raised face surfaces and bolt-hole configurations meet customer drawings or the applicable standards.
Given that socket weld connections depend heavily on tight tolerances and clean fit-up, our machine shop uses modern CNC lathes and milling centers to produce accurate concentricity, bore tolerances, and face flatness. The SWRF (raised face) profile enhances gasket sealing performance in bolted connections, while the socket weld geometry ensures reduced stress at welded joints. These attributes suit systems subject to thermal cycling and mechanical vibration, common in power plants, petrochemical refineries, or high-temperature furnaces.
To serve fast-moving projects and reduce lead times, Synergy Engineering Solution maintains a strategic inventory of commonly used sizes and pressure classes of Inconel 800 socket weld SWRF flanges. For more specialized demands—unusual diameters, special bore profiles, exotic face finishes or custom wall thicknesses—we accept customized orders, subject to the customer’s specification, inspection and certification needs. Our experienced team coordinates material procurement, machining scheduling, inspection and packing to align with project timelines.
From an export standpoint, Synergy Engineering Solution handles the end-to-end supply chain for clients across the globe. We currently supply into the Gulf region (Oman, Qatar, Saudi Arabia, UAE, Kuwait) where high-temperature process plants are common, as well as into Spain and Germany’s advanced industrial markets, into the USA and Canada for specialty applications, and across Africa for energy, mining and infrastructure projects. We take care of export packing (corrosion-preventive wrapping, wooden crates, labeling), documentation (commercial invoices, certificates, customs forms) and logistics so the flanges arrive in your country ready for on-site integration.
If you’d like a formal datasheet, dimensional drawing, or a tailored offer for specific sizes, pressure classes or test requirements, just send us your requirements (size, bore, face type, quantity, inspection requirements, destination). We at Synergy Engineering Solution will furnish a complete technical proposal including material certificates, inspection reports, lead times and delivered cost to your site—whether it's a refinery in Saudi Arabia, an offshore platform in UAE, a plant in Germany, or a mining facility in Africa.
| Material designation | UNS N08800 (Incoloy® / Alloy 800) |
|---|---|
| Standards & specs | Typical production/inspection standards include ASTM / ASME product specs (refer to ASTM/ASME for specific product form), ANSI/ASME B16.5 / B16.47 for dimensions, and EN equivalents on request. |
| Flange type | Socket Weld (SW) / Raised Face (SWRF) — standard SW bore & RF face per class |
| Size range | Commonly ½" — 48" (depends on forging/stock). Custom sizes produced to order. |
| Pressure classes | 150#, 300#, 600#, 900#, 1500#, 2500# (ANSI) — metric PN classes available on request. |
| Surface finish & machining | Precision machined socket bore, RF face finish per ASME class; CNC machining for concentricity and face flatness to ensure sound weld fit-up. |
| Certificates & testing | EN 10204/3.1 (MTC) as standard; optional PMI, UT, PT, RT and third-party inspection per order. |
| Packing & export | Corrosion preventive inner wrap plus wooden crates, labelled with heat number, size, qty; export documentation and customs support available. |
| Element | Typical range / limit (wt%) |
|---|---|
| Nickel (Ni) | 30.0 – 35.0 |
| Chromium (Cr) | 19.0 – 23.0 |
| Iron (Fe) | Balance (remainder) |
| Carbon (C) | ≤ 0.10 |
| Manganese (Mn) | ≤ 1.50 |
| Silicon (Si) | ≤ 1.00 |
| Copper (Cu) | ≤ 0.75 |
| Aluminium (Al) | 0.15 – 0.60 |
| Titanium (Ti) | 0.15 – 0.60 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.015 |
| Boron (B) | trace (as specified) — typically ≤ 0.006 if controlled |
| Property | Typical value / range |
|---|---|
| Ultimate tensile strength (Rm) | ~420 – 600 MPa (varies by form & heat treatment) |
| Yield strength (0.2% offset) | ~170 – 295 MPa (depends on product form and temper) |
| Elongation | ≥ 30% (typical for annealed material; depends on thickness/form) |
| Hardness | Typical Brinell / Rockwell values vary by condition (annealed values commonly below ~200 HB) |
| Service temperature | Good oxidation and carburization resistance up to high temperatures; 800H/800HT variants used where enhanced creep strength at elevated temperatures is required. |
| System | Equivalent / common ID |
|---|---|
| UNS | N08800 |
| Trade / common name | Incoloy® 800 / Alloy 800 (also supplied as 800H / 800HT for high-temperature variants) |
| W.-Nr. (Werkstoff) | ~1.4876 (EN equivalents / national numbers depend on standard) |
| ASTM/Product specs | Various ASTM/ASME product specs apply depending on form (bars, forgings, plate, pipe) — confirm per order. |
Alloy 800 socket weld flanges are commonly used in high-temperature piping systems, furnaces, petrochemical reforming, heat treating equipment and process lines where oxidation/carburization resistance and good mechanical stability are required.
Standard deliverables include mill test certificates (EN 10204/3.1 or equivalent). PMI, UT/PT/RT and third-party inspection services can be arranged on request.
Yes — we manufacture custom bore sizes, special wall thicknesses, and face finishes. Please provide drawing/specification, quantity, and required inspections so we can quote accurately.
Flanges are wrapped with corrosion preventive film, slotted into timber crates or pallets, labelled with heat/lot numbers and accompanied by necessary export paperwork to your destination country.
Yes — Synergy Engineering Solution regularly exports UNS N08800 socket weld SWRF flanges to Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, USA, Canada and many countries across Africa. We manage logistics, documentation and customs support.
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.
Exporting Steel Pipes & Tubes to over 60 countries including Afghanistan, Albania, Andorra, Angloa, Austria, Australia, Bahrain, Bangladesh, Bhutan, Brazil, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus, Croatia, Czech Republic, Canada, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Madagascar, Mexico, Moldova, Monaco, Malaysia, Maldives, Mongolia, Myanmar (Burma), Nepal, New Zealand, North Korea, Netherlands, Norway, Nigeria, Oman, Poland, Portugal, Pakistan, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, Singapore, South Korea, South Africa, Sri Lanka, Sudan, Syria, Taiwan, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Venezuela, Vietnam, Yemen, etc.

