Most conventional fasteners lose strength and oxidation resistance at elevated temperatures above 1000°C. Hastelloy X nuts are specifically designed to retain their mechanical properties in these demanding environments. This is why Hastelloy X is widely specified for gas turbines, furnace fixtures, and other high-temperature equipment instead of conventional stainless steel. It offers a minimum room-temperature tensile strength of approximately 690 MPa while maintaining excellent oxidation resistance at elevated temperatures. As a trusted Hastelloy X Nut Manufacturer, we supply standard hex nuts, Hastelloy locknuts, and custom fasteners manufactured to customer specifications. Every order is supplied with complete mill test certification and full material traceability to ensure consistent quality and performance.
HASTELLOY X LOCK NUTS
HASTELLOY X HEAVY HEX NUTS
HASTELLOY X HEX NUTS
What is Hastelloy x nuts?
Hastelloy X nuts are nuts made of Hastelloy X, which is a nickel-based super alloy. This alloy has high-temperature strength, excellent oxidation resistance, and good fabricability. Hastelloy X nuts are commonly used in high-temperature and high-stress applications such as gas turbines, jet engines, and other aerospace applications. They are also used in industrial furnace applications where resistance to high-temperature corrosion is required. The use of Hastelloy X nuts ensures excellent performance in extreme environments, making them suitable for applications that require high-temperature strength & corrosion resistance.
What are the properties of Hastelloy x alloy nuts?
Hastelloy X alloy nuts are made of a nickel-based super alloy with excellent high temperature strength and corrosion resistance. The material is also easily fabricable and weldable also non magnetic. The nuts are suitable for high temperature & high stress applications.
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Hastelloy Alloy X Nuts Specification
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MaterialSpecification
Standards Size
LengthHastelloy Alloy X
IS
BS
ASTM
ASTM B5723 mm
to
200 mmM02 to M33
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Alloy X Nuts Chemical Composition
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ElementPercentageCarbon0.05 - 0.15Manganese1.00 maxCobalt0.50 - 2.50Boron0.01 maxCopper0.50 maxTungsten020 - 1.00 maxPhosphorus0.040 maxNickelBalanceMolybdenum8.00 - 10.00Iron17.00 - 20.00Sulfur0.030 maxSilicon1.00 maxChromium20.50 - 23.00Titanium0.15 maxAluminum0.50 max
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X Alloy Nuts Physical Properties
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PropertiesMetricImperialDensity9.13 g/cm³0.33 lb/in³
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Hastelloy Alloy X Nuts Grade Designation
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AlloyCommon NameRelated SpecificationBritishEuropeanASTMUNSAlloy XHastelloy X ®
2.4655B572N06002
Types Of Hastelloy Alloy X Nuts
![]() Hastelloy Alloy X self locking nuts |
![]() Alloy X Hex Nuts |
![]() X Alloy Heavy Hex Nuts |
![]() Hastelloy Alloy X Nylon Insert Nut |
![]() Hastelloy X Coupler Nuts |
![]() Hastelloy X Wing Nuts |
Other Types Of Hastelloy X Nuts
| Hastelloy X Nuts | Hastelloy Alloy X Nuts |
| Hastelloy X hex nuts | Hastelloy Alloy X heavy hex nuts Supplier |
| Hastelloy Alloy X hex nuts | Hastelloy X heavy hex nuts |
| X Alloy lock nut | Alloy X self locking nuts |
| Hastelloy Alloy X lock nut Exporter | Hastelloy X self locking nuts |
| Alloy X nylon insert nut | X Alloy coupler nuts Manufacturer |
| Hastelloy Alloy Square Nut | Hastelloy X Castle Nut |
| Hastelloy Alloy X Flex Lock Nut Exporter | Hastelloy X Steel High Nut Stockist |
| DIN 2.4655 K Lock Nut Manufacturer | Hastelloy UNS N06002 Serrated Flange Nut |
| Hastelloy Alloy X Flange Lock Nut | Hastelloy X Nylon Lock Nut Exporter |
| Hastelloy X Slotted Nut Supplier | Hastelloy Alloy 2 Way Lock Nut Distributor |
| Hastelloy Alloy X Custom Nut Supplier | Hastelloy X Coupler Nuts |
| Hastelloy Alloy Acorn Nut | Hastelloy Alloy Locking Nuts Manufacturer |
| Hastelloy Alloy Wing Nut | Hastelloy X T Nuts |
| Hastelloy Alloy X nylon insert nut | ISO Certified Hastelloy X coupler nuts |
Uses and Applications of Hastelloy X Nuts
- Turbine combustion chambers operating under continuous high-temperature conditions.
- Furnace fixtures and heat-treat racks that cycle hot and cold hundreds of times a year
- Aerospace exhaust assemblies, where heat and vibration hit the fastener at once
- Chemical plant joints carrying corrosive, high-temperature streams
- Nuclear components requiring stable mechanical properties under elevated temperatures and radiation exposure.
- Petrochemical flanges in pressure loops running hot
- Heat exchangers where a cheaper alloy would fatigue within a season
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We are Experts in Exporting Fasteners Worldwide
- We are Exporter of Hastelloy X Nuts in Worldwide Such as India, Iran, Romania, Yemen, Argentina, Oman, Libya, Singapore, Brazil, Trinidad & Tobago,Tunisia, China, Azerbaijan, Namibia, Saudi Arabia, Lithuania, Poland, United Kingdom, Thailand, Denmark, Finland, Russia, Mexico, Bhutan, Iran, Jordan, Malaysia, South Korea, Indonesia, Chile, Peru, Netherlands, New Zealand, Costa Rica, Gambia, Serbia, Kenya, South Africa, Nepal, Ireland, Gabon, Tibet, Belarus, Australia, Ukraine, Algeria, Afghanistan, Canada, Sri Lanka, Spain, Colombia, Hungary, Nigeria, Bahrain, Ecuador, Angola, Puerto Rico, Portugal, Israel, Croatia, Estonia, Mongolia, United States, India, Taiwan, Nigeria, Switzerland, Vietnam, Norway, Lebanon, Qatar, Turkey, Czech Republic, Egypt, Greece, Mexico, Poland, Ghana, Japan, Bolivia, Kazakhstan, Pakistan, Sweden, Austria, France, United Arab Emirates, Slovakia, Bangladesh, Philippines, Venezuela, Bulgaria, Morocco, Belgium, Kuwait, Macau, Italy, Germany, Zimbabwe, Hong Kong, Iraq, Chile.
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We are Supplier of Fasteners in India
- We are Suppliers of Hastelloy Alloy X Nut in India Such as Mumbai, Algiers, Haryana, Singapore, Noida, Brisbane, Los Angeles, Aberdeen, Tehran, Atyrau, Jaipur, Toronto, Chennai, Seoul, Chiyoda, Pune, Lahore, New York, Thiruvananthapuram, Howrah, Muscat, Dallas, Ankara, Hanoi, Bangkok, Bogota, Kuala Lumpur, Manama, Baroda, Kolkata, Dubai, Hong Kong, Pimpri-Chinchwad, Nagpur, Ludhiana, Ahvaz, Rio de Janeiro, Jakarta, Secunderabad, Rajkot, Ahmedabad, Al Jubail, Riyadh, Chandigarh, Kanpur, Bengaluru, Cairo, Bhopal, Petaling Jaya, La Victoria, Mumbai, Santiago, Houston, Ho Chi Minh City, Jeddah, London, Istanbul, Navi Mumbai, Colombo, Hyderabad, New Delhi, Geoje-si, Sydney, Al Khobar, Indore, Perth, Moscow, Nashik, Gimhae-si, Surat, Thane, Ernakulam, Sharjah, Faridabad, Doha, Abu Dhabi, Caracas, Port-of-Spain, Vadodara, Gurgaon, Karachi, Lagos, Coimbatore, Melbourne, Edmonton, Ranchi, Montreal, Ulsan, Courbevoie, Madrid, Dammam, Vung Tau, Milan, Busan, Calgary, Jamshedpur, Visakhapatnam, Granada, Kuwait City, Mexico City.
FAQ
How do Hastelloy X nuts compare with standard stainless steel nuts?
304 and 316 stainless steel soften well below 980°C. Hastelloy X keeps its grip past that point.
Can Hastelloy X nuts be manufactured in custom thread sizes?
Yes, send a drawing. That's the whole reason this alloy shows up in gas turbines and furnace fixtures instead of ordinary stainless steel; it maintains a sample part and we'll match pitch, diameter, and bore.
What tests are performed on Hastelloy Alloy Nuts before dispatch?
Composition, hardness, dimensions, and every batch, with a mill certificate to back it up.
Can Hastelloy X nuts be used in furnace equipment?
That's one of its main applications. Oxidation resistance to 1200°C is why furnace shops specify it.





