Hastelloy Fasteners: The Ultimate Solution for Corrosive Environments
Hastelloy fasteners are an integral part of many industries, renowned for their excellent resistance to corrosion and outstanding durability in harsh environments. If you’re looking for high-performance fasteners that can withstand extreme conditions, Hastelloy fasteners are the ideal choice. In this comprehensive guide, we will explore what Hastelloy fasteners are, their unique properties, the advantages they offer, and why ASC LLP stands out as one of the leading Hastelloy Fasteners manufacturers in India.
What Are Hastelloy Fasteners?
Hastelloy fasteners are a type of hardware made from the Hastelloy family of alloys, primarily known for their exceptional corrosion resistance. These alloys contain varying amounts of nickel, molybdenum, and chromium, which give them their distinct anti-corrosive properties. Hastelloy fasteners are used extensively in industries such as chemical processing, oil and gas, marine, aerospace, and power generation, where resistance to extreme temperatures and corrosive substances is crucial.
Properties of Hastelloy Fasteners
Hastelloy fasteners are sought after for their extraordinary properties. Below are some key Hastelloy fasteners properties:
- Exceptional Corrosion Resistance: Hastelloy fasteners offer one of the highest levels of corrosion resistance among all metallic fasteners. They can resist chemical attacks from acidic, alkaline, and neutral environments, making them invaluable for industries dealing with corrosive substances.
- Resistance to Pitting and Crevice Corrosion: Pitting and crevice corrosion are common problems in many industrial environments, especially when materials are exposed to stagnant water or chemicals. Hastealloy fasteners excel in resisting these localized forms of corrosion, significantly extending the life of the equipment they are used in.
- High-Temperature Strength: These fasteners can operate in high-temperature environments without losing their strength or becoming brittle. Hastelloy alloys can handle extreme temperatures ranging from cryogenic conditions up to 1000°C, making them ideal for use in industries like aerospace and power generation.
- Excellent Mechanical Properties: Hastelloy offers high tensile strength, flexibility, and durability. Their excellent mechanical properties allow them to withstand heavy loads and mechanical stress in various industrial applications.
- Oxidation Resistance: In high-temperature applications, Hastelloy fasteners offer resistance to oxidation, a common problem that degrades the metal surface. Their ability to maintain integrity under such conditions is invaluable for equipment longevity.
Advantages of Hastelloy Fasteners
Hastelloy fasteners come with several benefits that make them the preferred choice in demanding industries. Here are some of the Hastelloy fasteners advantages:
- Longer Lifespan: Due to their excellent corrosion resistance and mechanical properties, Hastelloy fasteners last significantly longer than fasteners made from other materials. Their resistance to wear and tear reduces the need for frequent replacements, leading to cost savings over time.
- Versatility: Hastealloy fasteners can be used across a variety of applications, including extreme environments like chemical processing plants, oil refineries, and marine settings. Their adaptability makes them a versatile solution for many industries.
- Minimal Maintenance: Fasteners made from Hastelloy require little maintenance, even in the most corrosive environments. Their durability and resistance to environmental wear reduce the need for constant monitoring and repairs.
- Resistant to Chemical Attack: Whether it’s sulfuric acid, hydrochloric acid, or other harsh chemicals, Hastelloy fasteners stand up to aggressive chemical attacks. This makes them essential in industries dealing with chemical processes or storage.
- Cost-Effective: While the upfront cost of Hastelloy may be higher than other materials, their longevity, durability, and minimal maintenance requirements make them a cost-effective solution in the long run.
- Environmental Sustainability: The durability and corrosion resistance of fasteners mean less frequent replacements, which helps reduce environmental waste from industrial maintenance and part disposal.
Schedule and Size Chart
| Fastener Type | Size Range (inches) | Thread Type | Length Range (inches) |
| Bolts | 1/4″ to 4″ | UNC, UNF | 1/4″ to 12″ |
| Nuts | 1/4″ to 4″ | UNC, UNF, Metric | N/A |
| Washers | 1/4″ to 4″ | Flat, Spring, Lock | N/A |
| Screws | 1/4″ to 3″ | UNC, UNF, Metric | 1/4″ to 6″ |
| Studs | 1/4″ to 4″ | UNC, UNF | 1″ to 36″ |
Mechanical Properties Chart
| Property | Value |
| Tensile Strength | 690 – 850 MPa (100 – 123 ksi) |
| Yield Strength | 275 – 340 MPa (40 – 50 ksi) |
| Elongation at Break | 40% – 50% |
| Hardness (Rockwell B) | 85 – 95 HRB |
| Modulus of Elasticity | 205 – 220 GPa |
| Impact Toughness (Charpy V) | 135 J at room temperature |
Specifications Chart
| Standard | Description |
| ASTM B574 | Standard for Nickel Alloy Fasteners, including Hastelloy |
| ASTM F467 | Specification for Nonferrous Bolts, Hex Cap Screws |
| ASTM F468 | Specification for Nonferrous Nuts |
| ASME SB574 | Standard Specification for Nickel Alloy Bolts and Fasteners |
| DIN 933 | Specification for Hexagonal Head Bolts |
| ISO 3506 | Fasteners made of corrosion-resistant nickel alloys |
Chemical Composition Chart
| Element | Percentage (%) |
| Nickel (Ni) | 58% min |
| Molybdenum (Mo) | 15.0% – 17.0% |
| Chromium (Cr) | 14.5% – 16.5% |
| Iron (Fe) | 4.0% – 7.0% |
| Tungsten (W) | 3.0% – 4.5% |
| Cobalt (Co) | 2.5% max |
| Manganese (Mn) | 1.0% max |
| Silicon (Si) | 0.08% max |
| Carbon (C) | 0.01% max |
| Phosphorus (P) | 0.04% max |
| Sulfur (S) | 0.03% max |
Physical Properties Chart
| Property | Value |
| Density | 8.89 g/cm³ |
| Melting Point | 1370°C – 1420°C (2500°F – 2590°F) |
| Thermal Conductivity | 10.0 W/m·K |
| Coefficient of Thermal Expansion | 12.4 µm/m·K (20°C to 100°C) |
| Electrical Resistivity | 1.24 µΩ·m |
| Specific Heat Capacity | 427 J/kg·K |
Application Chart
| Industry | Application | Hastelloy Grade |
| Chemical Processing | Reactors, heat exchangers, piping systems | Hastelloy C276, C22 |
| Oil & Gas | Refineries, offshore drilling rigs, gas processing | Hastelloy B2, C276 |
| Marine Engineering | Shipbuilding, offshore platforms, seawater handling | Hastelloy C22, C276 |
| Aerospace | Turbine engines, exhaust systems, fuel systems | Hastelloy X |
| Pharmaceuticals | Clean room equipment, contamination-free storage | Hastelloy C276, B3 |
| Power Generation | Gas turbines, flue gas desulfurization systems | Hastelloy X, C276 |
| Waste Treatment | Corrosive liquid handling, flue gas systems | Hastelloy C22, B2 |
| Pollution Control | Emission control, flue gas scrubbers | Hastelloy C22, C276 |
Hastelloy Fasteners Suppliers and Manufacturers
At ASC LLP, we are one of the premier Hastelloy Fasteners manufacturers in India. Our wide range of fasteners is crafted using top-quality Hastelloy alloys, ensuring superior performance in even the harshest conditions. Whether you need Hastelloy bolts, nuts, screws, or washers, we have the expertise and manufacturing capability to meet your needs.
As one of the leading Hastelloy Fasteners suppliers, we cater to various industries, offering custom solutions that align with your specific requirements. Our fasteners are manufactured to strict industry standards and undergo rigorous testing to ensure optimal performance.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality Hastelloy Fasteners. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
