Welcome to Maduka Metals, your trusted partner in Abuja for high-performance nickel-iron-chromium alloys. We specialize in supplying and manufacturing top-quality Incoloy 800, 800H, and 800HT bars and rods, providing Nigerian industries with reliable materials built to withstand extreme conditions. Our commitment is to deliver not just products, but durable solutions backed by expert knowledge and dependable local service, ensuring your projects have the robust foundation they need to succeed right here at home.
The strength of these alloys comes from a robust composition primarily of nickel, iron, and chromium, with added stability from titanium and aluminum. This blend grants them exceptional mechanical properties, including high tensile strength and outstanding creep-rupture resistance, especially in the 800H and 800HT grades which are thermally treated for enhanced performance. This makes them uniquely suited to maintain their integrity and resist deformation under intense heat and stress over long periods.
Incoloy 800/800H/800HT Bars Specifications
Specification : ASTM B166, A479 / ASME SB166, SA479
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Incoloy Round Bars: Outside Diameter in the range of 4mm to 500mm
Incoloy Bright Bars : Outside Diameter in the range of 4mm to 200mm
Incoloy Hex Bars : 4mm – 101.6mm
Incoloy Square Bars : 3mm – 100mm
Incoloy Flat Bars : 1/2″ to 10″ in thickness range of 1.6mm to 150mm, Custom Size Stainless Steel Flats available
Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Length : 1 to 6 Meters, Custom Cut Lengths
Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| 800 | 0.10 max | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
| 800H | 0.05 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
| 800HT | 0.06 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Alloy 800 / 800H / 800HT | 7.94 g/cm3 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30 % |
| STANDARD | WERKSTOFF NR. | UNS | GOST | AFNOR | JIS | BS | EN | OR |
| Incoloy 800 | 1.4876 | N08800 | ЭИ670 | Z8NC32-21 | NCF 800 | NA 15 | X10NiCrAlTi32-20 | XH32T |
| Incoloy 800H | 1.4958 / 1.4876 | N08810 | ЭИ670 | Z8NC33-21 | NCF 800H | NA 15(H) | X5NiCrAlTi31-20 | XH32T |
| Incoloy 800HT | 1.4859 / 1.4876 | N08811 | ЭИ670 | – | NCF 800HT | NA 15(HT) | X8NiCrAlTi32-21 | XH32T |
| Incoloy 800 Round bar | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr |
| 3mm | 0.017 | 0.055 | 20mm | 0.753 | 2.470 | 3″ | 10.900 | 35.762 |
| 1/8″ | 0.019 | 0.062 | 22mm | 0.908 | 2.979 | 3-1/4″ | 12.800 | 41.996 |
| 5/32″ | 0.029 | 0.095 | 7/8″ | 0.926 | 3.038 | 3-1/2″ | 14.850 | 48.772 |
| 4mm | 0.030 | 0.098 | 24mm | 1.080 | 3.543 | 3-3/4″ | 17.001 | 55.780 |
| 3/16″ | 0.043 | 0.141 | 25mm | 1.180 | 3.871 | 4″ | 19.306 | 63.340 |
| 5mm | 0.047 | 0.154 | 1″ | 1.210 | 3.970 | 4-1/4″ | 21.908 | 72.249 |
| 7/32″ | 0.058 | 0.190 | 26mm | 1.271 | 4.170 | 4-1/2″ | 24.4487 | 80.340 |
| 6mm | 0.068 | 0.223 | 27mm | 1.368 | 4.490 | 4-3/4″ | 27.366 | 90.249 |
| 1/4″ | 0.076 | 0.249 | 1-1/8″ | 1.534 | 5.033 | 5″ | 30.461 | 99.940 |
| 7mm | 0.091 | 0.298 | 30mm | 1.691 | 5.548 | 5-1/2″ | 36.690 | 121.000 |
| 5/16″ | 0.118 | 0.387 | 1-1/4″ | 1.924 | 6.349 | 6″ | 43.860 | 143.900 |
| 8mm | 0.120 | 0.398 | 32mm | 1.894 | 6.314 | 6-1/2″ | 51.093 | 167.630 |
| 9mm | 0.152 | 0.498 | 1-3/8″ | 2.303 | 7.550 | 7″ | 59.432 | 196.000 |
| 3/8″ | 0.170 | 0.557 | 35mm | 2.390 | 7.553 | 7-1/2″ | 68.226 | 225.000 |
| 10mm | 0.189 | 0.620 | 36mm | 2.438 | 7.999 | 8″ | 77.586 | 254.55 |
| 11mm | 0.228 | 0.748 | 38mm | 2.792 | 8.903 | 10″ | 121.048 | 397.140 |
| 7/16″ | 0.232 | 0.761 | 1-1/2″ | 2.715 | 8.951 | |||
| 12mm | 0.271 | 0.889 | 40mm | 3.009 | 9.872 | |||
| 1/2″ | 0.303 | 0.994 | 1-5/8″ | 3.200 | 10.449 | |||
| 13mm | 0.318 | 1.043 | 1-3/4″ | 3.712 | 12.179 | |||
| 14mm | 0.368 | 1.207 | 45mm | 3.807 | 12.555 | |||
| 9/16″ | 0.383 | 1.256 | 1-7/8″ | 4.260 | 13.977 | |||
| 15mm | 0.424 | 1.391 | 48mm | 4.330 | 14.205 | |||
| 5/8″ | 0.473 | 1.551 | 50mm | 4.698 | 15.414 | |||
| 16mm | 0.481 | 1.578 | 2″ | 4.848 | 15.906 | |||
| 17mm | 0.543 | 1.791 | 2-1/8″ | 5.475 | 17.963 | |||
| 11/16″ | 0.573 | 1.880 | 2-1/4″ | 6.135 | 20.128 | |||
| 18mm | 0.610 | 2.001 | 60mm | 6.768 | 22.205 | |||
| 3/4″ | 0.682 | 2.237 | 2-3/8″ | 6.838 | 22.435 | |||
| 2-1/2″ | 7.576 | 24.856 | ||||||
| 2-5/8″ | 8.354 | 27.409 | ||||||
| 2-3/4″ | 9.169 | 30.083 | ||||||
Yes, Incoloy 800, 800H, and 800HT bars and rods are highly corrosion-resistant, particularly to oxidation and carburization at high temperatures. They are commonly used in harsh environments such as chemical processing and power generation due to their excellent resistance to sulfur and other corrosive elements.
Yes, Incoloy 800, 800H, and 800HT bars and rods can be customized in size and length to meet specific industrial requirements. They are available in various diameters, lengths, and finishes to suit different applications.
Incoloy 800, 800H, and 800HT bars and rods perform exceptionally well in high-temperature environments, maintaining their strength and resistance to oxidation and carburization. They are ideal for applications in furnaces, heat exchangers, and gas turbines.
These versatile bars and rods are essential in demanding environments where heat and corrosion are a constant challenge. You’ll find them at the heart of heat-treating equipment, industrial furnaces, and critical components within the chemical processing and petrochemical industries. They are also invaluable in power generation for superheater tubes and nuclear applications, proving their reliability in everything from thermal processing to aerospace engineering, wherever exceptional strength at elevated temperatures is non-negotiable.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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