Aisha Nickel Alloys is a trusted manufacturer and supplier of Hastelloy Bolts in Muscat, Oman, offering high-performance fastening solutions for the most demanding industrial environments. Made from premium Hastelloy alloys, these bolts provide exceptional resistance to corrosion, oxidation, and high-temperature degradation. Manufactured using advanced forging and precision machining techniques, they ensure accurate dimensions, strong thread integrity, and long-lasting durability. Aisha Nickel Alloys adheres to international quality standards, supplying reliable bolts that serve the chemical, petrochemical, marine, oil and gas, and power generation industries worldwide.
| Specifications | ASTM B 574 ASME SB 574 |
| 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, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
Hastelloy Bolts |
Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
| Balance | 0.01 max | 15 – 17 | 1.0 max | 0.08 max | 4 – 7 | 0.04 max | 0.03 max | 2.5 max | 14.5 – 16.5 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.89 g/cm3 | 1370 °C (2500 °F) | Psi – 52,000 , MPa – 355 | Psi – 1,15,000 , MPa – 790 | 40 % |
Hastelloy bolts are typically made from nickel-molybdenum alloys with controlled additions of iron, cobalt, and chromium. This composition delivers excellent corrosion resistance in highly oxidizing and reducing environments, including acids like hydrochloric, sulfuric, and nitric acid. Hastelloy bolts exhibit high tensile and yield strength, superior toughness, and good fatigue resistance. They maintain mechanical stability and dimensional integrity under high temperature, pressure, and aggressive chemical exposure, making them ideal for critical industrial applications.
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Hastelloy bolts are widely used in industries where corrosion resistance, strength, and durability are essential. They are commonly employed in chemical and petrochemical plants, including reactors, heat exchangers, and piping systems exposed to aggressive acids and chemicals. In oil and gas, marine, and offshore applications, Hastelloy bolts resist seawater corrosion and extreme environmental conditions. They are also suitable for power generation, desalination plants, and specialty industrial equipment where long service life, reliability, and safety under harsh conditions are critical.
