Hastelloy C276 Instrumentation Tube Fittings Suppliers in India
Hastelloy C276 is a high corrosion resistant nickel molybdenum chromium alloy engineered to deliver consistent performance in both reducing and oxidizing environments. Hastelloy C276 tube fittings and Hastelloy C276 pipe fittings are both qualified for corrosive, high pressure service across chemical processing and petrochemical plants. Products such as ASTM B366 UNS N10276 buttweld fittings and Hastelloy C276 double ferrule fittings are manufactured to ASTM B574 and ASME B16.9 dimensional standards, and every batch undergoes PMI testing, hydrotesting, and visual and dimensional inspection to ensure quality, safety, and fit.
Kalpataru Piping Solution is a leading Hastelloy C276 fittings supplier and Hastelloy C276 instrumentation fittings exporter, manufacturing fittings by laser welding, electric resistance welding, and automatic arc welding, generally supplied without post weld heat treatment. Female run tee and female branch tee fittings are produced from electric fusion welded austenitic nickel chromium tubing suitable for high temperature and corrosive service. Ferrule nut fittings are designed for instrumentation and process connections requiring leak free performance in corrosive media, high pressure, and high temperature environments up to the alloy’s melting range of approximately 1370 degrees Celsius.
Where heat treatment is required, Alloy C276 instrumentation fittings are solution treated followed by acid cleaning or an equivalent finishing process, and each fitting is individually packed to preserve material quality during transit. We also manufacture large diameter front ferrule and back ferrule fittings using graded raw material and precision tooling for diverse industrial applications. For the complete instrumentation range, see our full Tube Fittings catalogue or browse related Hastelloy C22 Tube Fittings.
Table of Contents
- Hastelloy C276 Instrumentation Tube Fittings Specification
- Types of Hastelloy C276 Instrumentation Tube Fittings
- Equivalent Material of Hastelloy C276 Instrumentation Tube Fittings
- Chemical Composition of Hastelloy C276 Tube Fittings
- Mechanical Properties of Hastelloy C276 Instrumentation Tube Fittings
- Nickel Alloy C276 Single Ferrule Fittings Physical Properties
- Nickel Alloy C276 Single Ferrule Fittings Physical Properties
- ASME SB366 Hastelloy Tee Range
- Threaded and Socket Weld Hastelloy C276 Pipe Fittings
- Hastelloy C276 Tube Fittings Size Chart
- Werkstoff Nr. 2.4819 Reducer Gasket Size Chart
- Other Available Stock of Hastelloy Alloy C276 Instrumentation Tube Fittings
- Frequently Asked Questions About Hastelloy C276 Tube Fittings
Hastelloy C276 Instrumentation Tube Fittings Specification
| Specification | Detail |
| Material | Hastelloy Alloy C276 (UNS N10276) |
| Straight Fittings & Tube Adapters | ASTM B574 |
| Elbows, Crosses & Tees | ASTM B564 |
| Pressure Ratings | 3000, 6000, 10000, 15000 and 20000 PSI (up to 400 Bar) |
| Pipe Threads | BSP (ISO 228, BS 2779), SAE Unified (ASME B1.1), NPT (ASME B1.20.1), BSPP and BSPT (BS 21, ISO 7, JIS B 0203) |
| Product Range | Hydraulic, pneumatic, push to connect, instrumentation and JIC fittings in ASTM B574 / ASTM B564 grade UNS N10276 |
| Features | Gaugeable bodies, gas tight seal, fully interchangeable with Swagelok type connections, easy to disconnect and retighten, leak proof under high pressure, vacuum and vibration service |
| Test & Certification | ECE R110, EC 79, NACE MR0175 / ISO 15156 and MR0103 |
| Compatible Types Also Stocked | Tylok, Bilok, Swagelok, Parker, DK Lok, Hamlet Letlok, Duolok and Gyrolok type fittings |
Why Choose Kalpataru Piping Solution
Kalpataru Piping Solution manufactures C276 hydraulic tube fittings and instrumentation fittings to customer specification with full PMI, hydrotest, and dimensional inspection on every batch. Our manufacturing is ISO certified with documented mill test certificate (MTC) traceability on all material, and we offer flexible payment terms for international buyers along with consistent on time export delivery. Speak with our team through our contact page for a verified quote and current lead time.
Types of Hastelloy C276 Instrumentation Tube Fittings
Each type is available as Hastelloy C276 compression fittings or Hastelloy C276 double ferrule fittings, with full interchangeability across standard twin ferrule tube fitting systems.
Hastelloy C276 Tube Fittings Equivalent Grades & Standards
Hastelloy C276 instrumentation tube fittings are designated under several international standards. Use the table below to cross reference the equivalent grade or material number for your project specification.
Standard | Grade / Material No. | UNS Number | JIS | GOST | Other Names |
ASTM | B366 | N10276 | NW 0276 | ЭП760 | Alloy C276 / NiMo16Cr15W |
ASME | SB366 | N10276 | NW 0276 | ХН65МВУ | Nickel Alloy C276 |
DIN | 2.4819 | N10276 | NW 0276 | N/A | NiMo16Cr15W |
EN | 2.4819 | N10276 | N/A | N/A | Nickel Alloy C276 |
Chemical Composition of Hastelloy C276 Tube Fittings
Nominal nickel molybdenum chromium tungsten limits define the corrosion resistance of Hastelloy C276 and support quality control and MTC verification.
Symbol | Element | Composition (%) |
Ni | Nickel | Balance, approx. 57.0% min |
Mo | Molybdenum | 15.0 to 17.0 |
Cr | Chromium | 14.5 to 16.5 |
W | Tungsten | 3.0 to 4.5 |
Fe | Iron | 4.0 to 7.0 |
Co | Cobalt | 2.5 max |
Mn | Manganese | 1.0 max |
Si | Silicon | 0.08 max |
C | Carbon | 0.01 max |
P | Phosphorus | 0.04 max |
S | Sulfur | 0.03 max |
V | Vanadium | 0.35 max |
Hastelloy C276 Tube Fittings Mechanical Properties
Hastelloy C276 instrumentation tube fittings are designed to perform reliably in highly corrosive and high temperature environments, offering strong resistance to deformation under stress.
Property | Value |
Yield Strength | 283 MPa (41,000 psi) |
Tensile Strength | 690 MPa (100,000 psi) |
Elongation | 40% min |
Hardness | 100 HRB max |
Hastelloy C276 Alloy Physical Properties
| Property | Unit | Value | ||
| Density | g/cm3 (lb/in3) | 8.89 (0.321) | ||
| Specific Heat | J/kg·°C (Btu/lb·°F) | 427 (0.102) | ||
| Melting Range | °C (°F) | 1325 to 1370 (2415 to 2500) | ||
| Thermal Conductivity | W/m·K (Btu·in/ft²·h·°F) | 9.8 (67.9) | ||
| Young’s Modulus | GPa (ksi) | 205 (29.8 x 10³) | ||
| Shear Modulus | GPa (ksi) | 79 (11.4 x 10³) | ||
| Poisson’s Ratio | N/A | 0.307 | ||
Hastelloy C276 Fittings Dimensions Chart
Fitting Types | Sizes | Schedules |
90° LR/SR Elbows, 45° Elbows, Concentric & Eccentric Reducers, Tees, Reducing Tees, Stub Ends | 1/2″ to 12″ | Sch 10S to 80S |
Threaded and Socket Weld Hastelloy C276 Pipe Fittings
Connection Type | Products | Size & Class |
Socket Weld | 90 and 45 degree elbow, tee, cross, union, coupling, half coupling, cap, boss, outlet, welding outlet, insert | 1/8″ to 4″ (DN6 to DN100), 3000 / 6000 / 9000 LBS, per ASME B16.11, MSS SP 79/83/95/97, BS 3799 |
Threaded (NPT) | 90 and 45 degree elbow, tee, cross, union, street elbow, coupling, half coupling, reducing coupling, cap, hex bushing, hex/square/round head plug, bull plug, boss, outlet, hex nipple, swage nipple | 1/8″ to 4″ (DN6 to DN100), 3000 / 6000 / 9000 LBS, per ASME B16.11, MSS SP 79/83/95/97, BS 3799 |
Hastelloy C276 Tube Fittings Size Chart
Standard outside diameter, decimal equivalent, nominal pipe size and thread pitch for Hastelloy C276 tube fittings and matched NPT connections.
O.D. | Decimal Equivalent | Nominal Diameter | Threads (TPI) |
5/16 | 0.313 | 1/16 | 27 |
13/32 | 0.405 | 1/8 | 27 |
35/64 | 0.540 | 1/4 | 18 |
43/64 | 0.675 | 3/8 | 18 |
27/32 | 0.840 | 1/2 | 14 |
1-3/64 | 1.050 | 3/4 | 14 |
1-5/16 | 1.315 | 1 | 11-1/2 |
1-21/32 | 1.660 | 1-1/4 | 11-1/2 |
1-29/32 | 1.900 | 1-1/2 | 11-1/2 |
2-3/8 | 2.375 | 2 | 11-1/2 |
2-7/8 | 2.875 | 2-1/2 | 8 |
3-1/2 | 3.500 | 3 | 8 |
4 | 4.000 | 3-1/2 | 8 |
4-1/2 | 4.500 | 4 | 8 |
ANSI B16.9 Alloy C276 Long Stub End Weight Reference
Hastelloy C276 Instrumentation Tube Fittings, including ANSI B16.9 long stub ends, are precision-made for reliable performance, corrosion resistance, and consistent weights across various sizes and schedules.
Product range and theoretical weights (kg) | |||||||||
DN | Schedule 10S | Schedule 40S | Schedule 80S | ||||||
900 Elbow | 450 Elbow | Equal tee | 900 Elbow | 450 Elbow | Equal tee | 900 Elbow | 450 Elbow | Equal tee | |
8 | 0.02 | 0.01 | 0.03 | 0.03 | 0.02 | 0.06 | 0.04 | 0.03 | 0.07 |
10 | 0.03 | 0.02 | 0.05 | 0.03 | 0.02 | 0.03 | 0.06 | 0.04 | 0.09 |
15 | 0.06 | 0.03 | 0.09 | 0.08 | 0.04 | 0.10 | 0.10 | 0.05 | 0.14 |
20 | 0.07 | 0.03 | 0.13 | 0.08 | 0.04 | 0.17 | 0.11 | 0.05 | 0.20 |
25 | 0.14 | 0.08 | 0.28 | 0.15 | 0.11 | 0.29 | 0.22 | 0.14 | 0.38 |
32 | 0.23 | 0.11 | 0.49 | 0.26 | 0.17 | 0.59 | 0.40 | 0.23 | 0.68 |
40 | 0.30 | 0.17 | 0.68 | 0.40 | 0.23 | 0.86 | 0.51 | 0.29 | 1.02 |
50 | 0.50 | 0.25 | 0.85 | 0.70 | 0.4 | 1.28 | 0.91 | 0.59 | 1.59 |
65 | 0.85 | 0.48 | 1.41 | 1.40 | 0.77 | 2.19 | 1.81 | 0.99 | 3.13 |
80 | 1.25 | 0.63 | 1.77 | 2.20 | 1.08 | 3.31 | 2.97 | 1.50 | 4.45 |
90 | 1.70 | 0.75 | 2.67 | 2.83 | 1.42 | 4.08 | 4.00 | 2.00 | 5.44 |
100 | 2.10 | 1.08 | 3.46 | 4.47 | 2.09 | 5.27 | 6.18 | 2.81 | 7.71 |
150 | 5.45 | 2.72 | 8.07 | 10.89 | 5.44 | 10.99 | 16.32 | 8.16 | 13.61 |
200 | 10.20 | 5.33 | 15.65 | 21.54 | 10.77 | 20.91 | 33.11 | 16.56 | 28.12 |
250 | 18.15 | 9.75 | 26.46 | 38.56 | 19.27 | 35.38 | 51.71 | 25.86 | 49.90 |
300 | 25.80 | 13.62 | 39.46 | 59.42 | 29.71 | 62.14 | 79.38 | 39.69 | 83.91 |
Product range and theoretical weights (kg) | |||||||||
DN | Schedule 10S | Schedule 40S | Schedule 80S | ||||||
Con reducer | Ecc reducer | Reducing tee | Con reducer | Ecc reducer | Reducing tee | Con reducer | Ecc reducer | Reducing tee | |
40x.25 | 0.19 | 0.19 | 0.60 | 0.26 | 0.26 | 0.76 | 0.34 | 0.34 | 0.90 |
50×25 | 0.28 | 0.28 | 0.73 | 0.40 | 0.40 | 1.10 | 0.54 | 0.54 | 1.37 |
50×40 | 0.31 | 0.31 | 0.76 | 0.45 | 0.45 | 1.15 | 0.59 | 0.59 | 1.43 |
80x.50 | 0.55 | 0.55 | 1.56 | 1.00 | 1.00 | 2.91 | 1.79 | 1.79 | 3.91 |
100×50 | 0.78 | 0.78 | 2.94 | 1.50 | 1.50 | 4.48 | 1.95 | 1.95 | 6.55 |
100×80 | 0.87 | 0.87 | 3.04 | 1.74 | 1.74 | 4.64 | 2.33 | 2.33 | 6.79 |
150×80 | 1.82 | 1.82 | 6.86 | 3.95 | 3.95 | 9.68 | 5.51 | 5.51 | 11.57 |
150×100 | 1.96 | 1.96 | 7.10 | 4.07 | 4.07 | 11.94 | 5.96 | 5.96 | 11.97 |
200×100 | 3.01 | 3.01 | 13.46 | 6.55 | 6.55 | 17.98 | 9.23 | 9.23 | 24.18 |
200×150 | 3.19 | 3.19 | 14.08 | 6.74 | 6.74 | 18.82 | 10.12 | 10.12 | 25.31 |
Applications of Hastelloy C276 Instrumentation Tube Fittings
Hastelloy C276 instrumentation tube fittings are specified across industries that handle aggressive media, high pressure, and elevated temperature:
- Chemical and petrochemical processing
- Oil and gas, including offshore platforms
- Pharmaceutical and food processing equipment
- Power generation and flue gas desulfurization
- Marine and seawater handling systems
- Pulp and paper manufacturing
- Pollution control and waste treatment
- Aerospace and nuclear power components
The service temperature range for Hastelloy C276 instrumentation fittings is approximately minus 29 degrees Celsius (minus 20 degrees Fahrenheit) up to 593 degrees Celsius (1100 degrees Fahrenheit) for continuous duty. For systems carrying highly corrosive process gas, pair these fittings with ourInstrumentation Ball Valves orManifold Valves for a complete instrumentation loop.
Other Available Stock of Hastelloy Alloy C276 Instrumentation Tube Fittings
- Hastelloy C276 Swagelok instrumentation Fittings
- ASTM B564 Alloy C276 Nickel Reducing Union Tee
- DIN 2.4819 45 Degree Positionable Male Elbow
- ASTM B366 Hastelloy® Alloy C276 Ferrule Nut
- Hastelloy C276 Positionable Male Run Tee
- Hastelloy Alloy JIS NW 0276 Hex Plug
- ASME SB366 Hastelloy C276 Tube End Closure
- Hastelloy C-276 Fitting End Closure
- Hastelloy C276 Parker Compression Fittings
- Hastelloy C276 Bulkhead Reducing Union
- Hastelloy C276 Hydraulic Fittings in India
- Hastelloy C276 Single Ferrule Compression Fitting
- Hastelloy Alloy C276 Ferrule Fitting Manufacturer
- Hastelloy C276 Positionable Male Elbow
- Hastelloy C276 Hex Nipple Supplier
- Hastelloy®C-276 Hex Bushing Exporter
- SB564 Hastelloy C276 Male Adapter
- Hastelloy C276 Female Adapter
- Hastelloy C276 Allen Key Plug
- Hastelloy C276 Instrumentation Pipe Fittings
- Hastelloy UNS N10276 Tube Cap Fittings
- Hastelloy C276 Tylok Instrumentation Fittings
- Hastelloy Alloy C276 Union Joint Ball
- Hastelloy C276 Two Ferrule Compression Fitting
- Hastelloy C276 Ferrule Tube Fittings Suppliers
- Hastelloy C276 High Pressure Hydraulic Tube Fittings
Export Markets
Kalpataru Piping Solution exports Hastelloy C276 compression fittings and instrumentation tube fittings to clients across the Middle East, Europe, Southeast Asia, Africa and the Americas, including key markets such as the United Arab Emirates, Saudi Arabia, the United Kingdom, Germany, the United States and Singapore. For a full shipment quote to your region, contact our export team.
Frequently Asked Questions About Hastelloy C276 Tube Fittings
Hastelloy C276 tube fittings are used in chemical, petrochemical, marine and pollution control industries for handling corrosive fluids, acids and gases under high temperature and pressure.
Available types include compression, instrumentation, ferrule, bulkhead, male and female connectors, elbows, tees, reducers, unions, and NPT/BSP threaded fittings suitable for high pressure and corrosion critical systems.
Hastelloy C276 fittings are compatible with alloys such as Inconel, Monel and stainless steel, ensuring safe metallurgical performance, though they may corrode when paired directly with carbon steel in aggressive environments.
Hastelloy C276 instrumentation tube fittings perform reliably from approximately minus 29 degrees Celsius (minus 20 degrees Fahrenheit) up to a continuous service temperature of 593 degrees Celsius (1100 degrees Fahrenheit).