Hastelloy Fasteners Supplier
MT.BOLTS manufactures Hastelloy fasteners using premium corrosion-resistant nickel-based alloys such as Hastelloy C-22, C-276, and C-2000. These fasteners are engineered for extreme environments involving strong oxidizing and reducing agents, and are widely used in chemical processing, marine applications, pollution control, and high-temperature systems.
Our HASTELLOY fasteners have the following specifications:
- Diameter: M3 to M64 | #4 to 2.5″
- Length: 6mm to 500mm | 0.25″ to 20″
- Thread Pitch: Metric (Coarse/Fine) | UNC/UNF
- Standards: ASME B18.2.1, ASME B18.3, ASME B18.2.2, DIN/ISO/EN (e.g., DIN 933, DIN 934)
- Material Specifications: ASTM B574 (Hastelloy C-276), ASTM B564, ASTM B619, ASTM B622
- Types: Bolts, Screws, Nuts, Washers, Studs
We regularly supply Hastelloy fasteners and bolts from these material grades: Hastelloy C276, C22, C2000, X, B2, and B3. For your procurement reference, their chemical compositions and physical properties are below.
| Alloy Grade | UNS Number | Characteristics |
| Hastelloy C276 | N10276 | Excellent resistance to strong oxidizing and reducing agents; resists pitting, crevice corrosion, and stress corrosion cracking |
| Hastelloy C22 | N06022 | Superior oxidation resistance compared to C-276; suitable for mixed acid environments |
| Hastelloy C2000 | N06200 | Copper-enhanced alloy designed for mixed oxidizing and reducing environments |
| Hastelloy X | N06002 | Excellent high-temperature strength and oxidation resistance, up to 1200掳C |
| Hastelloy B2 | N10665 | Outstanding resistance to hydrochloric, hydrofluoric, and phosphoric acids; not suitable for oxidizing environments |
| Hastelloy B3 | N10675 | Improved version of B-2 with better thermal stability |
Hastelloy Fasteners Chemical Composition
| Alloy | Ni | Mo | Cr | Fe | Co | W | Cu | Mn | C | Others |
| C-276 | Bal. | 15–17 | 14.5–16.5 | 4–7 | ≤2.5 | 3–4.5 | ≤0.5 | ≤1.0 | ≤0.01 | Si ≤0.08, S ≤0.03 |
| C-22 | Bal. | 12.5–14.5 | 20–22.5 | 2–6 | ≤2.5 | 2.5–3.5 | ≤0.5 | ≤0.5 | ≤0.015 | Si ≤0.08, S ≤0.02 |
| C-2000 | Bal. | 15–17 | 22–24 | 2–4 | ≤2 | — | 1.3–1.9 | ≤0.5 | ≤0.01 | Si ≤0.08, S ≤0.03 |
| X | 47.5–53 | 8–10 | 20.5–23 | 17–20 | 0.5–2.5 | — | — | ≤1.0 | ≤0.05 | Si ≤1.0, W ≤1.0 |
| B-2 | Bal. | 26–30 | ≤1.0 | 2–4 | ≤1.0 | — | ≤0.5 | ≤1.0 | ≤0.02 | Si ≤0.1, S ≤0.02 |
| B-3 | Bal. | 28.5–30.5 | 1.0–3.0 | 1–3 | ≤1.0 | — | ≤0.2 | ≤3.0 | ≤0.01 | Si ≤0.1, S ≤0.02 |
Hastelloy Fasteners Mechanical Properties
| Alloy | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) | Hardness (HRB) |
| C-276 | ≥ 690 | ≥ 283 | ≥ 40 | ≤ 100 |
| C-22 | ≥ 690 | ≥ 283 | ≥ 45 | ≤ 95 |
| C-2000 | ≥ 690 | ≥ 280 | ≥ 45 | ≤ 96 |
| X | ≥ 750 | ≥ 275 | ≥ 30 | ≤ 95 |
| B-2 | ≥ 760 | ≥ 345 | ≥ 40 | ≤ 90 |
| B-3 | ≥ 760 | ≥ 345 | ≥ 40 | ≤ 90 |
Hastelloy Fastener Types
MT.BOLTS offers a comprehensive range of Hastelloy Fasteners for your selection to meet various application requirements:
Hastelloy Hex Head Screw Bolts
Hastelloy Square Head Bolts
Hastelloy Flange Bolts
Hastelloy Serrated Flange Bolts
Hastelloy Eye bolts
Hastelloy Carriage Bolts
Hastelloy Elevator Bolts
Hastelloy U-Bolts
Hastelloy Anchor Bolts
Hastelloy Expansion Bolt
Hastelloy Lag Bolts
Hastelloy U-Bolts
Hastelloy Hex Head Lag Screws
Hastelloy Shoulder Screws
Hastelloy Socket Cap Screws
Hastelloy Self-Tapping Screws
Hastelloy Hex Nuts
Hastelloy Serrated Flange Nuts
Hastelloy Lock Nuts
Hastelloy Wing Nuts
Hastelloy Coupling Nut
Hastelloy Square Nuts
Hastelloy Acorn Nuts
Hastelloy Wing Nuts
Hastelloy Fully Threaded Rods & Studs
Hastelloy Equal Thread Length Rods & Studs
Hastelloy Unequal Thread Length Rods & Studs
Hastelloy Single End Threaded Studs
Hastelloy Weld Studs
Hastelloy Press-In Captive Studs
Hastelloy Flat Washers
Hastelloy Lock Washers
Hastelloy Curved Washers
Hastelloy Wave Washers
Hastelloy Square Washers
Hastelloy Belleville Washers
Why Choose MT.BOLTS
- Material Diversity
- Standardized Production
- Ample Inventory
- Competitive Pricing
- Low-MOQ Customization
Reasons to Choose Hastelloy Fasteners
Hastelloy fasteners are selected for their outstanding resistance to a wide range of aggressive chemicals, including strong oxidizing and reducing agents, acids, and chlorides. They offer excellent protection against pitting, crevice corrosion, and stress corrosion cracking. With multiple alloy grades such as C-276, C-22, and B-2, they provide tailored solutions for harsh environments. In addition to their superior corrosion resistance, these fasteners maintain high mechanical strength and thermal stability across a broad temperature range, making them ideal for demanding industrial applications.
Send Us A Message
Application of Hastelloy Fasteners
Hastelloy fasteners are widely used in industries that demand both chemical resistance and structural reliability. Common applications include chemical processing equipment, marine and offshore structures, pollution control systems, pharmaceutical production lines, high-temperature aerospace components, and pulp and paper processing systems. Their ability to withstand corrosive media and extreme conditions makes them essential for critical fastening in aggressive service environments.
FAQ About Hastelloy Fasteners and Bolts
Hastelloy is a trademarked series of corrosion-resistant metal alloys primarily composed of nickel, with additions like molybdenum, chromium, iron, and cobalt depending on the grade.
Most Hastelloy grades are non-magnetic in the annealed condition, making them suitable for sensitive equipment.
No, they are highly resistant to rust and corrosion even in extreme chemical and marine environments.
Common standards include ASTM B574, ASTM B564, ASTM F467, ASTM F468, and ASME B18 series for dimensions and threads.
Related Products
17-4 PH Stainless Steel Fasteners
17-4 PH Stainless Steel Fasteners Supplier MT.BOLTS manufactures 17-4 PH stainless steel fasteners using high-quality precipitation-hardening stainless steel. These fasteners
18-8 stainless steel fasteners
18-8 Stainless Steel Fasteners Supplier MT.BOLTS manufactures 18-8 stainless steel fasteners using high-quality austenitic stainless steel grades such as 304,
ASTM A307 Bolts
ASTM A307 Bolts Supplier MT.BOLTS manufactures ASTM A307 carbon steel bolts using high-quality low-carbon steel materials. These bolts offer reliable