30 tons Incoloy 800 Alloy Pipe Shipped to Kuwait

What Was in the Shipment? (Order Summary)

The Kuwaiti client required pipe capable of withstanding extreme heat and oxidation in a petrochemical proc

essing facility. After order confirmation and rigorous quality testing, the following items were released for transit. The total net weight of 30,622 kg (about 30.6 tonnes) matches the order headline.

Table 1. Customer order bill of materials (as supplied by the client)

Name	Qty	thickness [mm]	length [mm]	width [mm]	weight [kg]	Rev.
P1	2	20	5435	2400	4174
P2	2	20	3665	2330	2733
P3	4	14	6000	1750	4704
P4	1	14	2420	1750	474
P6	1	14	6365	1705	1215
P7	2	14	6365	1705	2431
P8	1	14	6365	1705	1215
P9	4	12	6604	2255	5719
P10	1	12	1700	1135	185
P11	4	10	6605	2255	4765
P12	1	8	3820	1870	457
P13	4	8	3270	1880	1574	1
P1 RGD*	1	8	2750	1470	259
P2 RGD	1	8	2870	1460	268
P3 RGD	1	8	2910	2400	447
					30622

Why Does Kuwait's Oil & Gas Industry Demand Alloys Like Incoloy 800?

Kuwait holds roughly 101 billion barrels of proved crude oil - around 6 percent of the world total and among the ten largest reserves on the planet - and produces about 2.7 to 3.0 million barrels per day. That production is concentrated in a few giant operators: the Kuwait Oil Company (KOC) for upstream, and the Kuwait National Petroleum Company (KNPC) and KIPIC for refining and petrochemicals at Mina Al-Ahmadi, Mina Abdullah, Shuaiba and the new Al-Zour refinery, plus Petrochemical Industries Company (PIC) and EQUATE for polymers and intermediates.

What matters for materials is not the volume of oil but the temperature of the process. Crude distillation units, catalytic reformers, hydrogen plants, ethylene crackers, amine and acid-gas treaters, and the furnaces that feed them all run metal-skin temperatures from about 400 degC up to 900 degC and beyond. The flue gas in those furnaces is oxidizing and often carburizing; the process side can be sour (H2S, CO2), wet, and at high pressure. Carbon and low-alloy steels embrittle or carburize in that window, and ordinary stainless steels lose strength and sensitize. Nickel-iron-chromium alloys of the Incoloy 800 family are the established workhorse for furnace tubes, transfer lines, pigtails, outlet manifolds and convection-section tubing in exactly these units.

That demand is structural, not cyclical. Kuwait's downstream expansion - the Al-Zour refinery, KNPC upgrade packages and PIC / EQUATE petrochemical capacity - keeps adding high-temperature units that need 800-family alloys, while ageing assets require the same material for repairs and revamps. For a supplier, that means repeat orders of pipe, fittings and forgings qualified to exactly the chemistry, grain size and test regime the standards require, which is the discipline this shipment was built around.

• Kuwait's process units run at 400-900 degC skin temperature - far above the design range of 316H stainless.

• Furnace flue gases are oxidizing and carburizing; high nickel content resists both.

• Sour service (H2S/CO2) and high pressure demand alloys that resist HTHA and sensitization.

• Refinery and petrochemical expansions (Al-Zour, PIC/EQUATE) keep demand for 800-family alloys high.

Why Was Incoloy 800 / 800H Selected for This Project?

The client's order specified Incoloy 800 (UNS N08800). In practice, the 800 family is a set of three closely related grades, and the choice of which one to specify depends on the design temperature. Incoloy 800 is the base chemistry; Incoloy 800H (UNS N08810) adds a controlled carbon range (0.05-0.10 percent) for improved creep and rupture strength; Incoloy 800HT (UNS N08811) further tightens aluminium-plus-titanium to 0.85-1.20 percent for the highest elevated-temperature strength. For furnace and pyrolysis duty above 593 degC (1100 degF), 800H or 800HT is the grade called out in the ASME Code, while base 800 is generally limited to lower temperatures.

For this Kuwait petrochemical application the deciding factors were, in order: (1) retained strength and creep resistance at operating temperature; (2) resistance to carburization and oxidation in furnace flue gas; (3) low risk of sensitization and intergranular corrosion after welding, thanks to the stabilized chemistry; and (4) good fabricability into pipe and fittings. The combination is why 800-family material is specified across Kuwait's crackers, reformers and hydrogen plants rather than a lower-cost stainless.

• Creep / rupture strength: 800H and 800HT are Code-approved above 593 degC where base 800 is not.

• Carburization resistance: the high nickel balance forms a stable, adherent scale in furnace gas.

• No sensitization: low carbon plus Ti/Al stabilization keeps grain boundaries chromium-rich after welding.

• Fabricability: readily welded with ENiCrFe-2 / ERNiCr-3 and formed into pipe, plate and forgings.

How Does Incoloy 800 Compare With Alternative Alloys for Kuwait Service?

Within the JN ALLOY catalogue, the natural alternatives are Incoloy 825, Inconel 625 and 316H. Incoloy 825 adds molybdenum and copper, which makes it better in sulfuric and phosphoric acid but no stronger at temperature. Inconel 625 is corrosion-king but considerably more expensive and usually specified for marine or extremely corrosive duty. 316H is cheap but loses strength and sensitizes well below the temperatures Kuwait furnaces reach. The 800 family sits in the sweet spot of temperature capability and cost for furnace and high-pressure process piping.

For buyers comparing grades, the https://www.jnalloy.com/incoloy-800-pipes.html and the https://www.jnalloy.com/incoloy-800h.html give full chemistry and property data, while https://www.jnalloy.com/incoloy-825.html covers the acid-service alternative.

What Did the Test Reports Show? (Mill Test & Inspection Summary)

Each heat shipped to Kuwait was released only after it met the mechanical, chemical and non-destructive requirements of ASTM B407 / B829. The summary below is representative of the Incoloy 800 / 800H family; the exact figures on every order are recorded on the mill test certificate (EN 10204 3.1) that accompanies the material. Values shown are typical, not a substitute for the heat-specific MTC.

Read together, the results tell a consistent story: the material has margin on strength, is ductile enough to form and weld without cracking, is clean of sensitization, and is confirmed to be the correct grade. For the client, that means the pipe can go straight into a high-temperature circuit without a second round of incoming inspection, and any future audit can trace each bundle back to its own certificate.

Beyond the numbers, two checks matter most for long service life: the intergranular-corrosion (Huey) test confirms the heat is not sensitized, and PMI confirms the delivered material is genuinely N08800 / N08810 and not a substitute grade. Both were part of this shipment's release.

How Did JN ALLOY Protect Quality During Production and Shipping?

Quality control started at the melt and ended at the container. Material was produced and inspected to ASTM B829 general requirements, then verified by PMI, ultrasonic / eddy-current examination, hydrostatic testing and dimensional checks. For export to the Gulf, pipe was packed in seaworthy bundles with end caps and moisture barriers, braced to prevent movement, and labelled with heat and certificate numbers so the client could trace every piece back to its MTC.

• Mill test certificate (EN 10204 3.1) issued per heat, with chemistry and mechanical results.

• PMI (XRF / OES) on finished product to confirm the grade before release.

• UT / eddy-current and hydrostatic testing per ASTM B829 to exclude defective pipe.

• Seaworthy export packaging with end protection, moisture barrier and bracing.

• Heat-to-certificate traceability on every bundle label.

Which Incoloy 800 Products and ASTM Standards Apply?

Incoloy 800 is supplied across the full range of product forms. The table below maps each form to its governing ASTM / ASME specification so specifiers and inspectors can write the correct call-out. JN ALLOY stocks and produces pipe, plate, bar, forgings and flanges in the 800 family.

Related product and technical pages: https://www.jnalloy.com/incoloy-800-pipe-material-properties-a-comprehensive-guide.html, https://www.jnalloy.com/incoloy-800ht.html, and https://www.jnalloy.com/incoloy-800-uns-n08800-flanges-manufacturer-exporter.html.

Why Choose JN ALLOY for Gulf Petrochemical Projects?

This Kuwait order reflects the four reasons clients return to JN ALLOY. First, product performance: our nickel alloys deliver the high-temperature strength and corrosion resistance the application demands. Second, selection: a broad portfolio across Incoloy, Inconel, Hastelloy and duplex grades means the right alloy - not a compromise - is specified. Third, quality: every batch is produced under a controlled system and released only against international standards. Fourth, service: our team works closely with clients from enquiry through delivery and after-sales, responding quickly and shipping on time.

For regional context, see our https://www.jnalloy.com/oil-and-gas.html, the https://www.jnalloy.com/chemical-equipment.html overview, and the guide to https://www.jnalloy.com/how-to-select-nickel-alloy-pipe-for-offshore-oil-gas.html.

Related Case Studies From the Gulf and Beyond

Other recent shipments that show the range of our nickel-alloy exports:

• https://www.jnalloy.com/84-pcs-uns-s32750-buttwelding-pipe-fittings-to-saudi-arabia.html - super-duplex for the Gulf.

• https://www.jnalloy.com/41-tons-inconel-625-pipe-shipped-to-malaysia.html - marine and corrosive duty.

• https://www.jnalloy.com/16-pcs-uns-n06022-steel-pipe-shipped-to-finland.html - Hastelloy C22 process line.

• https://www.jnalloy.com/904l-f347h-flange-and-fittings-successfully-shipped.html - stainless and high-alloy package.

Frequently Asked Questions About Incoloy 800 for Kuwait Service