⚡ Product At a Glance — Hastelloy C276 Fasteners
Table of Contents
- Introduction
- What are Hastelloy C276 Fasteners?
- Types of Hastelloy C276 Fasteners We Supply
- Chemical Composition & Mechanical Properties
- Equivalent Grades & Designations
- Applications & Industries
- Hastelloy C276 vs Other Alloys
- Why Hastelloy C276 is Preferred
- Why Choose Sankalp Alloys
- Our Export Process
- Quality Standards & Certifications
- Supply Across India
- Global Export Destinations
- Packaging, Delivery & Documentation
- FAQs
- Conclusion
Introduction — Hastelloy C276 Fasteners Exporter in India
When industries demand fasteners that refuse to corrode — even when exposed to concentrated hydrochloric acid, hot sulfuric acid, wet chlorine gas, or aggressive seawater — Hastelloy C276 fasteners are the answer. As a trusted Hastelloy C276 Fasteners Exporter in India, Sankalp Alloys has been supplying precision-engineered UNS N10276 fasteners to industries across 50+ countries, backed by full material traceability, international certifications, and competitive pricing.
Whether you are sourcing Hastelloy C276 hex bolts, stud bolts, heavy hex nuts, washers, screws, or custom-engineered fastening solutions, Sankalp Alloys delivers consistent quality with every shipment — from India to UAE, Saudi Arabia, USA, UK, Germany, Singapore, Australia, and beyond.
🔥 Looking for Hastelloy C276 fasteners at competitive export prices? We respond within 24 hours.
Get Free Quote →What are Hastelloy C276 Fasteners?
Hastelloy C276 fasteners are precision-manufactured fastening components made from the nickel-molybdenum-chromium superalloy Hastelloy C276 (also called UNS N10276, DIN 2.4819, or Alloy C-276). Originally developed by Haynes International, this alloy is recognised globally as one of the most versatile and corrosion-resistant nickel alloys available.
Key properties that make Hastelloy C276 fasteners unique:
- Outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC)
- Excellent performance in both oxidising and reducing chemical environments
- Resistance to wet chlorine gas, hypochlorite, and chlorine dioxide
- Excellent resistance to concentrated HCl, H₂SO₄, HNO₃/HCl mixtures, and acetic acid
- High-temperature strength and oxidation resistance up to 1040°C
- Ultra-low carbon content (0.010% max) prevents sensitisation and grain boundary carbide precipitation
- Meets NACE MR0175 requirements for sour gas service
These properties make Hastelloy C276 fasteners the preferred choice wherever stainless steel, duplex steel, or standard nickel alloy fasteners fail due to aggressive corrosion.
Types of Hastelloy C276 Fasteners Supplied by Sankalp Alloys
We manufacture and export the complete range of Hastelloy C276 (UNS N10276) fasteners to meet any industrial requirement:
| Fastener Type | Standard / Specification | Size Range | Common Head Types |
|---|---|---|---|
| Hastelloy C276 Hex Bolts | ASME B18.2.1 / DIN 931 / DIN 933 | M6–M100 / 1/4"–4" | Hex, Heavy Hex |
| Hastelloy C276 Stud Bolts | ASME B16.5 / ASTM A193 | M8–M64 / 3/8"–2-1/2" | Full Thread, Double End |
| Hastelloy C276 Hex Nuts | ASME B18.2.2 / DIN 934 | M6–M100 | Hex, Heavy Hex, Jam Nut |
| Hastelloy C276 Heavy Hex Nuts | ASME B18.2.2 / ASTM A194 | 1/4"–4" | Heavy Hex, Slotted |
| Hastelloy C276 Flat Washers | ASME B18.22.1 / DIN 125 | M6–M100 | Plain, Beveled |
| Hastelloy C276 Spring Washers | DIN 127 / BS 4464 | M6–M64 | Split, Curved, Wave |
| Hastelloy C276 Socket Cap Screws | ASME B18.3 / DIN 912 | M3–M36 | Socket Head, Button Head |
| Hastelloy C276 Set Screws | ASME B18.3 / DIN 916 | M4–M24 | Cup Point, Flat Point |
| Hastelloy C276 Machine Screws | DIN 963 / DIN 965 | M3–M12 | Pan, Countersunk, Cheesehead |
| Hastelloy C276 Threaded Rods | ASME B18.31.1 / DIN 975 | M8–M100 | Fully Threaded |
| Hastelloy C276 U-Bolts | Custom / DIN 3570 | As per drawing | Square, Round Bend |
| Hastelloy C276 Eye Bolts | DIN 580 / DIN 582 | M8–M52 | Collar, Plain |
| Hastelloy C276 Coupling Nuts | DIN 6334 | M6–M64 | Hex Coupling |
| Hastelloy C276 Castle Nuts | DIN 935 / ISO 7036 | M10–M100 | Slotted Castellated |
| Hastelloy C276 Weld Nuts | DIN 929 | M6–M20 | Hex Weld |
| Hastelloy C276 Foundation Bolts | Custom | M16–M100 | J-Bolt, L-Bolt, Anchor |
* Non-standard thread forms available: UNC, UNF, UNEF, BSW, BSP, Metric Coarse, Metric Fine. Custom lengths, head configurations, and finishes on request.
Chemical Composition & Mechanical Properties of Hastelloy C276
⚙ Hastelloy C276 (UNS N10276 / DIN 2.4819) — Full Technical Data
- Nickel (Ni): Balance (~57%)
- 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
- Vanadium (V): 0.35% max
- Silicon (Si): 0.08% max
- Carbon (C): 0.010% max
- Sulfur (S): 0.03% max
- Phosphorus (P): 0.04% max
- Tensile Strength: 690 MPa (100 ksi) min
- 0.2% Yield Strength: 283 MPa (41 ksi) min
- Elongation (2"): 40% min
- Hardness: 100 HRB max / 240 HB max
- Density: 8.89 g/cm³ (0.321 lb/in³)
- Melting Range: 1325 – 1370°C
- Max Service Temp (cont.): 1040°C
- Thermal Conductivity: 10.2 W/m·K
- Coefficient of Thermal Exp: 11.2 µm/m·°C
- Modulus of Elasticity: 205 GPa
- Poisson's Ratio: 0.305
- Electrical Resistivity: 1.30 µΩ·m
Hastelloy C276 Equivalent Grades & International Designations
Sankalp Alloys supplies Hastelloy C276 fasteners referenced by any of the following international grade designations:
| Standard Body | Designation | Full Name |
|---|---|---|
| UNS (USA) | N10276 | Nickel-Molybdenum-Chromium Alloy |
| DIN / WERKSTOFF (Germany) | 2.4819 | NiMo16Cr15W |
| JIS (Japan) | NW 0276 | — |
| BS (UK) | NA 17 | — |
| ISO | NiMo16Cr15W | — |
| ASTM | B574 / B575 / B619 / B622 | — |
| ASME | SB574 / SB575 / SB619 / SB622 | — |
| Trade Name | Hastelloy® C-276 | Haynes International |
| French (AFNOR) | NC17D | — |
Applications of Hastelloy C276 Fasteners Across Industries
Chemical Processing
Reactors, heat exchangers, pressure vessels, agitators, piping for HCl, H₂SO₄, HNO₃, chlorinated solvents, and organic acids.
Oil & Gas
Offshore platforms, subsea equipment, sour gas pipelines (NACE MR0175), wellheads, and downhole completion tools.
Marine & Desalination
Seawater cooling systems, desalination plants (MSF, RO), offshore structures, and shipbuilding components.
Power Generation (FGD)
Flue Gas Desulfurisation (FGD) systems, nuclear waste processing, gas turbines, and pollution control equipment.
Pharmaceutical
Process vessels, reactors, and fasteners in contact with aggressive solvents, APIs, and sterilisation media.
Pulp & Paper
Digesters, bleach washers, chlorine dioxide equipment, and chemical recovery boilers.
Nuclear
Radioactive waste processing, nuclear fuel reprocessing, and critical containment equipment.
Aerospace & Defence
High-temperature structural components, gas turbine engine parts, and defence applications.
Additional uses include: pickling tank heaters, chlorination systems, acetic acid plants, fertiliser production, sugar industry equipment, food processing, textile industry, and electronic industries.
Hastelloy C276 vs Other Alloys — Corrosion Resistance Comparison
| Property | Hastelloy C276 (N10276) | SS 316L | Hastelloy C22 (N06022) | Inconel 625 (N06625) | Monel 400 (N04400) |
|---|---|---|---|---|---|
| PREN (Pitting Resistance) | ~73 | ~24 | ~68 | ~52 | N/A |
| HCl Resistance | ✅ Excellent | ❌ Poor | ✅ Very Good | ✅ Good | ✅ Good |
| H₂SO₄ Resistance | ✅ Excellent | ⚠️ Limited | ✅ Very Good | ✅ Good | ⚠️ Limited |
| Wet Chlorine Resistance | ✅ Excellent | ❌ Poor | ✅ Very Good | ✅ Good | ⚠️ Fair |
| Stress Corrosion Cracking | ✅ Excellent | ❌ Poor | ✅ Excellent | ✅ Very Good | ✅ Good |
| Oxidizing Media | ✅ Very Good | ✅ Good | ✅ Excellent | ✅ Very Good | ⚠️ Fair |
| Max Service Temp (°C) | 1040 | 870 | 1040 | 982 | 482 |
| NACE MR0175 (Sour Service) | ✅ Yes | ⚠️ Limited | ✅ Yes | ✅ Yes | ⚠️ Limited |
PREN = Pitting Resistance Equivalent Number (higher = better pitting resistance). ✅ = Suitable | ⚠️ = Conditional | ❌ = Not suitable.
Why Hastelloy C276 Fasteners are Preferred
Engineers and procurement professionals specify Hastelloy C276 fasteners for five key reasons:
- Broadest Chemical Resistance: Among all nickel alloys, C276 offers the widest resistance to diverse corrosive environments — reducing AND oxidising media.
- Minimal Maintenance Cost: Long service life in aggressive environments dramatically reduces shutdown time and replacement costs.
- NACE MR0175 Compliance: Approved for sour gas (H₂S) service — mandatory in many oil & gas applications.
- Weldability: Ultra-low carbon content prevents weld sensitisation, making it easy to fabricate into complex assemblies.
- Proven Track Record: 50+ years of proven performance across chemical, marine, oil & gas, and nuclear industries globally.
Why Choose Sankalp Alloys as Your Hastelloy C276 Fasteners Exporter from India?
🏆 ISO 9001:2015 Certified
Our quality management system ensures every batch meets the same exacting standards. EN 10204 3.1 MTC provided with every shipment.
🌍 50+ Country Export Network
Established logistics to UAE, USA, UK, Saudi Arabia, Germany, Singapore, Australia, and more — with complete export documentation.
⚙ Custom Manufacturing
Any size, thread form, head type, or finish as per your drawing or OEM specification. No minimum order restrictions.
📦 Export-Grade Packaging
Polybag inner + wooden crate outer with clear marking: grade, heat no., size, quantity — prevents damage and customs delays.
⏱ Stock + Fast Lead Times
Standard sizes in ready stock. Special orders: 2–4 week lead time. Expedited delivery available for urgent requirements.
💬 Expert Technical Team
Material selection, NACE compliance, specification matching, and substitution guidance — our engineers support your procurement.
💰 Competitive Pricing
Direct manufacturer pricing with no middlemen. Volume discounts available for bulk and repeat orders.
📋 Complete Documentation
MTC, COC, COO, commercial invoice, packing list, NACE certificate, PED certificate — everything your bank and customs need.
Our Export Process — From Inquiry to Delivery
Inquiry
Send us grade, type, size, quantity, and destination via email, WhatsApp, or our contact form.
Quotation
We respond with competitive pricing, lead time, and available stock information within 24 hours.
Order Confirmation
PO received, order entered into production. Material sourced from approved mills with traceable heat numbers.
QC & Testing
Chemical analysis, mechanical testing, dimensional inspection. MTC and COC generated per EN 10204 3.1.
Packaging
Export-grade packing in polybags + wooden crates/cartons. Each package clearly marked.
Shipment
Sea/air freight arranged via trusted forwarders. Full set of export documents provided for smooth customs clearance.
Quality Standards & Certifications
All Hastelloy C276 fasteners from Sankalp Alloys are manufactured and tested in compliance with:
Hastelloy C276 Fasteners Supply Across India
Sankalp Alloys supplies and exports Hastelloy C276 fasteners from India to all major industrial hubs and port cities:
🏭 Maharashtra
We are a leading Hastelloy C276 Fasteners supplier in Mumbai, Pune, Navi Mumbai, Thane, Nashik, Nagpur, Pimpri-Chinchwad, Aurangabad, Solapur, and across Maharashtra. Mumbai being India's primary port city, we facilitate fast export clearance for global shipments.
🏭 Gujarat
Serving industries in Ahmedabad, Surat, Vadodara (Baroda), Rajkot, Ankleshwar, Vapi, Bharuch, and across Gujarat's chemical and petrochemical corridor — one of India's largest chemical processing hubs requiring high volumes of Hastelloy C276 fasteners.
🏭 South India
Supplying to Chennai, Coimbatore, Hyderabad, Bengaluru (Bangalore), Visakhapatnam, Secunderabad, Ernakulam (Kochi), Thiruvananthapuram, Mangalore, and other South Indian industrial centres.
🏭 North India
Delivering to Delhi (New Delhi), Noida, Gurgaon (Gurugram), Faridabad, Ludhiana, Chandigarh, Jaipur, Kanpur, Indore, Bhopal, and all major North Indian procurement hubs.
🏭 East India
Serving Kolkata, Jamshedpur, Howrah, Ranchi, Bhubaneswar, and industrial clients across East India's steel and chemical sectors.
All cities served:
Global Export — Hastelloy C276 Fasteners from India to the World
As a certified Hastelloy C276 Fasteners Exporter in India, Sankalp Alloys serves clients in 50+ countries across 6 continents:
🌍 Middle East (Largest Export Market)
We are a trusted Hastelloy C276 Fasteners supplier to UAE (Dubai, Abu Dhabi, Sharjah), Saudi Arabia (Riyadh, Jeddah, Al Jubail, Al Khobar, Dammam), Qatar (Doha), Kuwait, Bahrain (Manama), Oman (Muscat), and Iraq. The Middle East's massive oil & gas and petrochemical sector is a primary consumer of Hastelloy C276 fasteners.
🌍 USA & Canada
Exporting to clients in Houston (Texas), Los Angeles, New York, Dallas, Chicago, Canada (Toronto, Calgary, Edmonton, Montreal) — serving chemical, oil & gas, and marine industries.
🌍 Europe
Supplying to Germany (Frankfurt, Hamburg), UK (London, Aberdeen), Netherlands, Italy (Milan), France (Paris, Courbevoie), Norway, Spain (Madrid, Granada), Belgium, Sweden, Denmark, Czech Republic, Poland, Russia (Moscow), Ukraine, Portugal, Greece, Hungary, Austria, Switzerland, and more.
🌍 Asia Pacific
Serving Singapore, Malaysia (Kuala Lumpur, Petaling Jaya), Indonesia (Jakarta), Thailand (Bangkok), Vietnam (Ho Chi Minh City, Hanoi, Vung Tau), South Korea (Seoul, Busan, Ulsan, Geoje-si, Gimhae-si), Japan (Chiyoda), Australia (Sydney, Melbourne, Perth, Brisbane), New Zealand, Philippines, Bangladesh, Sri Lanka (Colombo).
🌍 Africa & Others
Exporting to South Africa, Nigeria (Lagos), Egypt (Cairo, Alexandria), Algeria (Algiers), Libya, Angola, Gabon, Kenya, and other African industrial markets.
🌍 Latin America
Supplying Brazil (Rio de Janeiro, São Paulo), Mexico (Mexico City), Argentina (Buenos Aires, La Victoria), Colombia (Bogota), Chile (Santiago), Venezuela (Caracas), Peru, Ecuador, Trinidad & Tobago (Port-of-Spain), and Puerto Rico.
Complete country list:
Packaging, Delivery & Export Documentation
Packaging: Hastelloy C276 fasteners are packed in polythene bags (inner) and placed in wooden boxes or double-walled corrugated cartons (outer). All packages are clearly marked with: material grade, UNS number, heat number, size, quantity, Sankalp Alloys name, and destination marks.
Lead Time: Standard sizes available ex-stock or within 1 week. Customised sizes and large-volume orders: 2–4 weeks. Expedited production available on request.
Export Documentation provided:
- EN 10204 3.1 Mill Test Certificate (MTC) — Chemical & Mechanical
- Certificate of Conformance (COC)
- Certificate of Origin (COO) — for all countries
- Commercial Invoice & Packing List
- Bill of Lading / Airway Bill
- NACE MR0175 Compliance Certificate (on request)
- PED 2014/68/EU Compliance Certificate (on request)
- Third-party inspection reports (SGS, Bureau Veritas, Lloyds, TUV — on request)
Frequently Asked Questions — Hastelloy C276 Fasteners
Conclusion
Hastelloy C276 fasteners (UNS N10276 / DIN 2.4819) represent the pinnacle of corrosion-resistant fastening technology for the world's most demanding industrial environments. From offshore oil platforms battling sour gas to pharmaceutical plants handling aggressive solvents, these fasteners deliver unmatched performance, longevity, and reliability where conventional materials fail.
As a proven Hastelloy C276 Fasteners Exporter in India, Sankalp Alloys combines rigorous quality control, a complete product range (bolts, nuts, studs, screws, washers, and custom forms), full material traceability with EN 10204 3.1 MTC, and established export logistics to serve clients in UAE, Saudi Arabia, USA, UK, Germany, Singapore, Australia, and 50+ countries worldwide.
Whether you need standard stock sizes urgently or custom-engineered fasteners per your drawing, Sankalp Alloys is your single-source partner for all Hastelloy C276 fastening requirements.