Santner Nickel Alloys is a reputable manufacturer and supplier of top-notch Incoloy 800/800H/800HT Bolts based in Hamilton, New Zealand. They specialize in providing dependable fastening solutions tailored for tough industrial settings. Thanks to their cutting-edge manufacturing processes and rigorous quality checks, the company produces bolts that excel in heat resistance, mechanical strength, and corrosion resistance. Designed to endure extreme temperatures and harsh environments, their Incoloy 800 series bolts are perfect for critical applications. Santner Nickel Alloys caters to various industries, including petrochemical, power generation, chemical processing, and heat treatment, delivering robust fastening products that guarantee long-lasting performance, safety, and structural integrity even in the most challenging conditions.
Incoloy 800/800H/800HT Bolts are made up of nickel (30–35%), chromium (19–23%), and iron, with carefully controlled amounts of titanium and aluminum to boost stability. The 800H grade has a higher carbon content, enhancing its creep and rupture strength, while the 800HT variant is optimized with Al+Ti levels for outstanding high-temperature resistance. These bolts provide remarkable tensile strength, oxidation resistance, and stability when exposed to high temperatures for extended periods. They effectively resist carburization, chloride stress cracking, and scaling, ensuring they maintain their mechanical integrity under varying thermal conditions and heavy loads, making them perfect for demanding industrial applications.
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Alloy 800/800H/800HT Bolt Specifications |
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| Specifications | : | ASTM B 408 ASME SB 408 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts. |
| Grade | C | Mn | Si | Fe | S | Cr | Al-Ti | Ni | |
| 800 | min. | – | – | – | 39.5 | – | 19.0 | 0.15 | 30.0 |
| max. | 0.1 | 1.5 | 1.0 | – | 0.015 | 23.0 | 0.60 | 35.0 | |
| 800H | min. | 0.05 | – | – | 39.5 | – | 19.0 | 0.15 | 30.0 |
| max. | 0.1 | 1.5 | 1.0 | – | 0.015 | 23.0 | 0.60 | 35.0 | |
| 800HT | min. | 0.06 | – | – | 39.5 | – | 19.0 | 0.85/0.25 | 30.0 |
| max. | 0.1 | 1.5 | 1.0 | – | 0.015 | 23.0 | 1.20/0.60 | 35.0 | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 800-H-HT | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa –205 | 30 | – | – |
At Santner Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Incoloy 800/800H/800HT Bolts in Hamilton, New Zealand, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the New Zealand, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Incoloy 800/800H/800HT Bolts find extensive use in industries where high-temperature strength and corrosion resistance are crucial. You’ll often see them in heat exchangers, boilers, furnace components, petrochemical processing units, and thermal oxidizers. Their exceptional stability makes them ideal for power plant equipment, cracking units, piping systems, and superheater assemblies. Chemical plants rely on these bolts in reactors and pressure vessels, ensuring they can handle the rigors of their environments.
