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Sumer Metal Industries Private Limited manufactures, supplies and exports premium Inconel 800, 800H and 800HT U-tubes tailored for high-temperature heat-exchanger and furnace applications. Manufactured from vacuum-melted or high-quality mill-certified Incoloy/Inconel alloy billets, these U-tubes are produced to tight dimensional tolerances, pickled and passivated, and are offered in seamless and welded construction depending on customer requirements. Sumer Metal Industries exports these U-tubes across the Middle East (Oman, Qatar, Saudi Arabia, UAE, Kuwait), Europe (Spain, Germany), North America (USA, Canada) and multiple regions of Africa.
The Inconel 800 family (sometimes sold under the Incoloy trade name) is an iron-nickel-chromium, solid-solution strengthened alloy noted for excellent resistance to oxidation, carburization and sulfidation at elevated temperatures, combined with good mechanical strength and toughness over a wide temperature range. The 800H and 800HT variants are produced and heat-treated to give improved creep and stress-rupture properties for prolonged high-temperature service. This makes 800/800H/800HT U-tubes ideal for petrochemical heaters, reformers, heat exchangers and other thermal process equipment.
Typical chemical composition and specification controls for the three grades follow the common industry standards: Alloy 800 (UNS N08800) is the base composition; 800H (UNS N08810) is carbon-controlled and grain-size controlled for creep resistance; 800HT (UNS N08811) has restricted Al/Ti and optimized heat treatment for still higher creep strength. These alloys are routinely supplied to the standard mill specifications and tested per ASTM/ASME/NACE requirements and ship with traceable mill test certificates (MTCs).
Mechanical performance (room temperature and elevated) includes good tensile strength, moderate yield strength and high elongation (excellent ductility), plus superior long-term creep strength for the H/HT variants when annealed appropriately. In practical terms you can expect annealed tensile strength values in the region of ≥ 450 MPa, yield ~170–205 MPa, and elongation ≥ 30% for typical annealed material — while 800H/HT will give notably improved rupture/creep performance at operating temperatures. Hardness and exact properties vary by product form (tube OD/wall, anneal condition).
Specification of Inconel 800 800H 800HT U tubes
| Property | Detail |
|---|---|
| Alloy family / UNS | Inconel / Incoloy 800 family — UNS N08800 (800), UNS N08810 (800H), UNS N08811 (800HT) |
| Typical applications | High-temperature heat exchangers, furnace coils, reformer tubes, petrochemical heaters, power plant recuperators |
| Product forms | Seamless U-tubes (commonly used) and welded U-tubes; custom bend radii and end preparations available |
| Surface finish | Mill finish; pickled & passivated (on request); custom surface treatment available for export packaging |
| Documentation | Mill Test Certificate (EN 10204 3.1 / 3.2 on request), chemical analysis, dimensional report; NDE/PMI/3rd-party inspection optional |
| Typical density | ~7.94 g/cm³ |
| Melting range | ~1350–1390 °C (approx. range depending on composition) |
Sumer Metal supplies tubes compliant with international standards such as ASTM B407 / B829 for seamless, ASTM B514 / B515 for welded, alongside EN, ISO, and other certifications. Their offerings include thorough documentation like mill test certificates (EN 10204) and customized testing upon request
Chemical Composition of Inconel 800 800H 800HT U tubes
| Element | Alloy 800 / 800H / 800HT (typical) |
|---|---|
| Nickel (Ni) | 30.0 – 35.0% |
| Chromium (Cr) | 19.0 – 23.0% |
| Iron (Fe) | Balance (typically ~39 – 45%) |
| Carbon (C) | 800: ≤ 0.10%; 800H: ~0.05 – 0.10% (controlled for creep); 800HT: similar control |
| Manganese (Mn) | ≤ 1.0% (typical) |
| Silicon (Si) | ≤ 1.0% (typical) |
| Aluminium + Titanium (Al + Ti) | Small amounts; 800HT may have tighter control on Al/Ti to improve creep properties (combined typically ≤ ~1.2%) |
| Other | Trace Cu, S, P controlled per mill spec |
With a proven track record as a Inconel 800 800H 800HT U tubes exporter in over 30 countries, Sumer Metal Industries ensures global availability, third-party inspection support, and client-specific customization. Our wide export network combined with strict quality standards has made us a preferred choice for SS 800 800H 800HT tubing worldwide.
Specification of Inconel 800 800H 800HT U tubes
| Property | Detail |
|---|---|
| Alloy family / UNS | Inconel / Incoloy 800 family — UNS N08800 (800), UNS N08810 (800H), UNS N08811 (800HT) |
| Typical applications | High-temperature heat exchangers, furnace coils, reformer tubes, petrochemical heaters, power plant recuperators |
| Product forms | Seamless U-tubes (commonly used) and welded U-tubes; custom bend radii and end preparations available |
| Surface finish | Mill finish; pickled & passivated (on request); custom surface treatment available for export packaging |
| Documentation | Mill Test Certificate (EN 10204 3.1 / 3.2 on request), chemical analysis, dimensional report; NDE/PMI/3rd-party inspection optional |
| Typical density | ~7.94 g/cm³ |
| Melting range | ~1350–1390 °C (approx. range depending on composition) |
🏭 Industry & Application
- ✅ SS 800 800H 800HT U Tubes for Medical Industry
- ✅ SS 800 800H 800HT U Tubes for Chemical Processing
- ✅ SS 800 800H 800HT Tubes for U Lines
- ✅ Inconel 800 800H 800HT U tubes for Gas & Liquid Flow
- ✅ SS 800 800H 800HT Tubes for Heat Exchangers
❓ Frequently Asked Questions (FAQs)
Q1:What are the main differences between Inconel 800, 800H and 800HT U-tubes?
Alloy 800 is the base grade; 800H has controlled carbon and grain size for improved creep/rupture resistance at high temperatures; 800HT tightens Al/Ti limits and uses a higher-temperature heat treatment to deliver still better long-term creep strength. Use 800H/800HT where prolonged exposure above ~700°C is expected.
Q2:What documentation and testing does Sumer Metal Industries provide with Inconel U-tubes?
Standard supply includes mill test certificate (MTC / EN 10204), chemical analysis, dimensional check, and optional NDE (UT/eddy current), PMI, hardness and third-party inspection as requested — ideal for export projects to Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, USA, Canada and Africa.
Q3: Can I get custom sizes, bends and special surface finishes?
Sumer Metal Industries offers custom OD/wall, U-bend radii, end preparations (milled, beveled), pickled & passivated finishes, and packing suitable for long overseas shipment. MOQ and lead time vary by specification and testing requirements.
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At Sumer Metal Industries Pvt. Ltd., we follow a zero-defect policy by implementing stringent quality checks, using certified raw materials, and continuously improving our processes to deliver reliable and consistent tubing solutions
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