Golden Steel Material is a premier ISO-certified stockist based in Al Jubail. We supply high-performance pipes, fittings, valves, and flanges to the Oil & Gas and Industrial sectors across Saudi Arabia and the GCC.
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Golden Steel Material is a premier Incoloy Alloy 20 Tubes Supplier in Saudi Arabia, providing high-performance, super-stainless piping solutions tailored for the Kingdom’s most rigorous chemical processing and acid-handling infrastructure. Incoloy Alloy 20 (UNS N08020) is an austenitic nickel-iron-chromium superalloy, specifically stabilized with niobium to prevent intergranular corrosion. Its primary utility lies in its unrivaled resistance to sulfuric acid environments and oxidizing chemicals, making it the preferred specification for high-efficiency heat exchangers, chemical mixing vessels, and aggressive processing loops where standard austenitic stainless steels (like 316L) would fail due to pitting or stress-corrosion cracking (SCC).
As a specialized Incoloy Alloy 20 seamless and welded tube stockist, we supply tubing manufactured to strict ASTM B729 (Seamless) and ASTM B468 (Welded) standards. This dual-capability ensures we can support your project whether it requires the maximum integrity of seamless pipe for high-pressure fluid transfer or the cost-effective structural reliability of welded tubing for chemical processing arrays. Alloy 20’s unique chemistry—rich in nickel, chromium, and molybdenum—ensures long-term structural stability and minimizes maintenance downtime in phosphate fertilizer plants, pharmaceutical synthesis lines, and organic chemical manufacturing facilities across the Jubail and Yanbu industrial clusters.
We serve as a trusted Incoloy Alloy 20 Tubes exporter in Saudi Arabia, guaranteeing that every shipment meets the stringent quality mandates of Saudi Aramco, SABIC, and major EPC contractors. Our inventory is fully supported by MTC EN 10204 3.1 certification and undergoes rigorous PMI, hydrostatic, and eddy current testing. Whether your needs involve critical plant maintenance, large-scale chemical infrastructure expansion, or emergency repair, our technical team provides the precision-grade alloys necessary to ensure your critical processing systems operate with maximum reliability and chemical safety.
Incoloy Alloy 20 Seamless Tube Supplier
Incoloy Alloy 20 Welded Tube
Incoloy Alloy 20 Tubing Bends
| Technical Product Details | |
|---|---|
| Item / Trade Name | Incoloy Alloy 20 Tube | ASTM B729/B468 Incoloy Alloy 20 |
| Available Grades | Inconel 600 (UNS N06600), 601 (N06601), 617, 625 (N06625), 718 (N07718), 740, X-750 (N07751), Incoloy 20, 330, 800 (N08800), 800H (N08810/11), 800HT, 825 (N08825), 925 |
| Standards & Specifications | ASTM / ASME SB 163, 167, 517, 704, 705, 161, 165, 444, 622, 677, 722, 729, 730 | AMS 5581 | GB, ISO, EN, JIS |
| Tube Type | Seamless, Welded (ERW), Fabricated, LSAW Tubes |
| Size Range (Seamless) | 6.35 mm OD to 101.6 mm OD (As per ASTM B163) |
| Size Range (Welded/ERW) | 6.35 mm OD to 152 mm OD (As per ASTM B730) |
| General Dimensions | OD: 10mm - 219mm | Length: 1000mm - 15000mm |
| Wall Thickness | 0.5mm to 60mm | SWG: 10, 12, 14, 16, 18, 20 Swg |
| Condition & Finish | Condition: Hard (Y) / Soft (M) Finish: Polished, Annealed & Pickled (AP), Bright Annealed (BA), MF |
| Form & End Connection | Form: Round, Coil, ‘U’ Shape, Square, Rectangular Ends: Plain End, Beveled End, Threaded |
| Inspection & Testing | Ultrasonic Testing, Non-Destructive Electric Test, Hydrostatic, Eddy Current, Flattening, Flaring, Visual Surface Inspection, Dimensional Inspection, Tensile Properties, Chemical Analysis, Bend Test, Heat Treatment, Hardness, I.C. Test |
| Certification | ISO EN 10204 3.1 / 3.1B / 3.2, PED, DNV, TUV Certified |
| Marking | Standard, Grade, OD, Thickness, Length, Heat No. (Custom Marking available upon request) |
| Delivery & Origin | Delivery: Specialized in Shutdown, Emergency, and Project Rush Demands Origin: American, Russian, Japanese, Chinese Standard stock |
Incoloy Alloy 20 Precision Tubes
Incoloy Alloy 20 Heat Exchanger Tube
Incoloy Alloy 20 Cold Drawn Seamless Tube
Incoloy Alloy 20 Extruded Seamless Tube
Incoloy Alloy 20 Round Tube
Incoloy Alloy 20 Capillary Tube
| Element | Composition Percentage (%) |
|---|---|
| Nickel (Ni) | 32.00 – 38.00 |
| Chromium (Cr) | 19.0 – 21.0 |
| Copper (Cu) | 3.0 – 4.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Niobium (Nb) | 8xC – 1.0 Max |
| Carbon (C) | 0.07 Max |
| Manganese (Mn) | 2.0 Max |
| Phosphorus (P) | 0.045 Max |
| Sulfur (S) | 0.035 Max |
| Silicon (Si) | 1.0 Max |
| Iron (Fe) | Balance |
Physical Properties
| Property | Value / Specification |
|---|---|
| Density | 8.1 g/cm³ |
| Melting Point | 1443 °C (2430 °F) |
| Tensile Strength | 80,000 psi / 551 MPa |
| Yield Strength (0.2% Offset) | 35,000 psi / 241 MPa |
| Elongation | 30% |
| Standard Organization | Designation / Grade |
|---|---|
| UNS | N08020 |
| Werkstoff Nr. | 2.4660 |
| EN (European) | NiCr20CuMo |
| JIS (Japanese) | NW 4400 |
| AFNOR (French) | Z2NCUD31-20AZ |
| BS (British) | — |
| GOST (Russian) | — |
| NPS (in) | Outside Diameter (in) | Incoloy Alloy 20 Wall Thickness per Schedule (in) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SCH 10 | SCH 20 | SCH 30 | SCH STD | SCH 40 | SCH 60 | SCH XS | SCH 80 | SCH 100 | SCH 120 | SCH 140 | SCH 160 | SCH XXS | ||
| 1/8 | 0.405 | - | - | - | 0.068 | 0.068 | - | 0.095 | 0.095 | - | - | - | - | - |
| 1/4 | 0.540 | - | - | - | 0.088 | 0.088 | - | 0.119 | 0.119 | - | - | - | - | - |
| 3/8 | 0.675 | - | - | - | 0.091 | 0.091 | - | 0.126 | 0.126 | - | - | - | - | - |
| 1/2 | 0.840 | - | - | - | 0.109 | 0.109 | - | 0.147 | 0.147 | - | - | - | 0.187 | 0.294 |
| 3/4 | 1.050 | - | - | - | 0.113 | 0.113 | - | 0.154 | 0.154 | - | - | - | 0.219 | 0.308 |
| 1 | 1.315 | - | - | - | 0.133 | 0.133 | - | 0.179 | 0.179 | - | - | - | 0.250 | 0.358 |
| 1 1/4 | 1.660 | - | - | - | 0.140 | 0.140 | - | 0.191 | 0.191 | - | - | - | 0.250 | 0.382 |
| 1 1/2 | 1.900 | - | - | - | 0.145 | 0.145 | - | 0.200 | 0.200 | - | - | - | 0.281 | 0.400 |
| 2 | 2.375 | - | - | - | 0.154 | 0.154 | - | 0.218 | 0.218 | - | - | - | 0.344 | 0.436 |
| 2 1/2 | 2.875 | - | - | - | 0.203 | 0.203 | - | 0.276 | 0.276 | - | - | - | 0.375 | 0.552 |
| 3 | 3.500 | - | - | - | 0.216 | 0.216 | - | 0.300 | 0.300 | - | - | - | 0.438 | 0.600 |
| 3 1/2 | 4.000 | - | - | - | 0.226 | 0.226 | - | 0.318 | 0.318 | - | - | - | - | - |
| 4 | 4.500 | - | - | - | 0.237 | 0.237 | - | 0.337 | 0.337 | - | 0.438 | - | 0.531 | 0.674 |
| 5 | 5.563 | - | - | - | 0.258 | 0.258 | - | 0.375 | 0.375 | - | 0.500 | - | 0.625 | 0.750 |
| 6 | 6.625 | - | - | - | 0.280 | 0.280 | - | 0.432 | 0.432 | - | 0.562 | - | 0.719 | 0.864 |
| 8 | 8.625 | - | 0.250 | 0.277 | 0.322 | 0.322 | 0.406 | 0.500 | 0.500 | 0.594 | 0.719 | 0.812 | 0.906 | 0.875 |
| 10 | 10.750 | - | 0.250 | 0.307 | 0.365 | 0.365 | 0.500 | 0.500 | 0.594 | 0.719 | 0.844 | 1.000 | 1.125 | 1.000 |
| 12 | 12.750 | - | 0.250 | 0.330 | 0.375 | 0.406 | 0.562 | 0.500 | 0.688 | 0.844 | 1.000 | 1.125 | 1.312 | 1.000 |
| 14 | 14.000 | 0.250 | 0.312 | 0.375 | 0.375 | 0.438 | 0.594 | 0.500 | 0.750 | 0.938 | 1.094 | 1.250 | 1.406 | - |
| 16 | 16.000 | 0.250 | 0.312 | 0.375 | 0.375 | 0.500 | 0.656 | 0.500 | 0.844 | 1.031 | 1.219 | 1.438 | 1.594 | - |
| 18 | 18.000 | 0.250 | 0.312 | 0.438 | 0.375 | 0.562 | 0.750 | 0.500 | 0.938 | 1.156 | 1.375 | 1.562 | 1.781 | - |
| 20 | 20.000 | 0.250 | 0.375 | 0.500 | 0.375 | 0.594 | 0.812 | 0.500 | 1.031 | 1.281 | 1.500 | 1.750 | 1.969 | - |
| 22 | 22.000 | 0.250 | 0.375 | 0.500 | 0.375 | - | 0.875 | 0.500 | 1.125 | 1.375 | 1.625 | 1.875 | 2.125 | - |
| 24 | 24.000 | 0.250 | 0.375 | 0.562 | 0.375 | 0.688 | 0.969 | 0.500 | 1.219 | 1.531 | 1.812 | 2.062 | 2.344 | - |
| 30 | 30.000 | 0.312 | 0.500 | 0.625 | 0.375 | - | - | 0.500 | - | - | - | - | - | - |
| 32 | 32.000 | 0.312 | 0.500 | 0.625 | 0.375 | 0.688 | - | - | - | - | - | - | - | - |
| 34 | 34.000 | 0.312 | 0.500 | 0.625 | 0.375 | 0.688 | - | - | - | - | - | - | - | - |
| 36 | 36.000 | 0.312 | 0.500 | 0.625 | 0.375 | 0.750 | - | - | - | - | - | - | - | - |
| 42 | 42.000 | - | 0.500 | 0.625 | 0.375 | 0.750 | - | - | - | - | - | - | - | - |
| Industrial Locations & Keywords |
|---|
| Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair) |
| Jeddah Industrial Cities (1st, 2nd & 3rd) |
| Dammam Industrial Areas (1st, 2nd & 3rd) |
| Jubail Industrial City |
| Yanbu Industrial City |
| Rabigh Industrial City |
| Al Khobar Industrial Area |
| Al Ahsa Industrial City |
| Madinah Industrial City |
| Makkah Industrial City |
| Taif Industrial City |
| Tabuk Industrial City |
| Jazan Industrial City |
| Industrial supplier in Saudi Arabia |
| Pipe fittings supplier in Jubail / Dammam / Riyadh |
| Flange and valve supplier Saudi Arabia |
| Fast delivery industrial materials KSA |
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