
Top notch ASTM B622 UNS N10276 Seamless tube supplier in Mumbai
Fitlok is manufacturer and supplier of Hastelloy C276 tubes which are used in various industries across India, Middle East, Europe, Southeast Asia and the Africa. We manufacture seamless and welded C276 tubing in ASTM B622, ASTM B163, and ASME SB622/SB163 standards. Our engineering team works directly with clients to select the right alloy, size, and delivery condition for sour gas, chloride, and high temperature corrosive service. Our export documentation, packaging, and logistics processes are built for smooth customs clearance in destination countries worldwide.
This combination of in house manufacturing, verifiable testing, and hands on technical support is why process industry buyers across multiple continents choose Fitlok as a long term Hastelloy C276 tube supply partner rather than a one time transactional vendor. We have recently supplied Alloy C276 Seamless tubing, 2inch, sch 40 to Oil and gas company in Mexico who were looking for sour gas (H₂S/CO₂) service solution.
Table of content
- Hastelloy C276 Tube Specification
- UNS N10276 Seamless tube Types
- Ni C276 Capillary Tubing Size Range
- Price list of Hastelloy C276 Tube
- Processing Services of Alloy C276 Tubing
- Thermal Properties of WNR 2.4819 Instrmentation Tube
- Ni C276 tubing performance in SSC Condition
- Hastelloy C276 High Pressure Tube Chemical Composition
- Nickel C276 Electropolished Tubes Mechanical Properties
- Equivalent grade of DIN 2.4819 ERW Tube
- UNS N10276 Mechanical Tube Physical Properties
- Hastelloy C276 vs C22 vs Inconel 625
- Quality Control & Testing Process of Alloy C276 Semaless Tubing
| Specification | ASTM B163 / ASME SB163 |
| Surfaces | |
| Standard length | 6 metres |
| Delivery Condition | MF, Bright Annealed, Polished, Annealed and Pickled, Cold Drawn |
| Thickness Range | Schedule 5 to Schedule XXS |
| Manufacturing Type | CEW / Seamless / DOM / ERW / Fabricated / Welded / CDW / CDS / 100% X Ray Welded |
| Surface Finish | BA, 500G, 2B, No.1, No.3, No.8, 800G Mirror finish, 8K, HL, No.4, 2D, Mirror Polished, 1D, 180G, 400G Satin/ Hairline, 320G, 400G, 600G |
| END | Plain End, Beveled End, Treaded Tubes |
| Value Added Services |
|
| Processing Service | Welding, Decoiling, Bending, Punching, Cutting, Moulding |
| Technique | Cold drawn, Cold rolled, Hot rolled, Extrusion Tubes |
| Tolerance |
Trusted Stockist and Exporter of Hastelloy C276 High Pressure Tube in different sizes
We stock UNS N10276 Tubing in sizes from small bore instrumentation tubing to large process tube. Orders are cut, tested, and documented before dispatch, with export packaging built around each destination country’s requirements.
Why Buy Hastelloy C276 Tube from Fitlok
- Direct Manufacturer Pricing
- Full Size Range
- Global Export Experience
- Complete Documentation
- Custom Processing
- Fast Turnaround
- Quality System

Hastelloy C276 High Pressure Tube

C276 Alloy Round Tube

Alloy C276 Electropolished Tubes

DIN NR. 2.4819 ERW Tube

Nickel Alloy C276 Capillary Tubing

ASTM B622 Hastelloy C276 Square Tubing
| Inside diameter | Outside diameter |
|---|---|
| 0.7 mm | 1.9 mm |
| 0.8 mm | 2.0 mm |
| 0.9 mm | 2.1 mm |
| 1.0 mm | 2.2 mm |
| 1.1 mm | 2.3 mm |
| 1.25 mm | 2.45 mm |
| 1.3 mm | 2.5 mm |
| 1.4 mm | 2.6 mm |
| 1.5 mm | 2.7 mm |
| 1.6 mm | 2.8 mm |
| 1.8 mm | 3.0 mm |
| 1.9 mm | 3.1 mm |
| 2.0 mm | 3.2 mm |
| 2.3 mm | 3.5 mm |
Buy Nickel C276 Electropolished Tubes and Ni C276 Capillary Tubing at factory price
| Product | Price in USD (Kg) |
Price in Dirham (Kg) |
Price in Euro (Kg) |
|---|---|---|---|
| 9.53X0.5X4650MM Alloy C276 Seamless Tube | US $20.16 | 74.04 AED | € 17.35 |
| 9.53X0.5X3300 MM Hastelloy C276 Welded Tube | US $19.25 | 70.70 AED | € 16.57 |
Refer weight chart and dimension of WNR 2.4819 Instrmentation Tube

| Thermal expansion co-efficient | Thermal conductivity |
|---|---|
| 16.5 µm/m°C | 14 W/mK |
UNS N10276 Square Tubing has good resistance in oxidising and reducing environments
| Hastelloy C276 | No Cracking in 1,008 h |
|---|
| Grade | C | Mn | Si | S | Co | Ni | Cr | Fe | Mo | P |
|---|---|---|---|---|---|---|---|---|---|---|
| C276 | 0.010 max | 1.00 max | 0.08 max | 0.03 max | 2.50 max | 50.99 min* | 14.50 – 16.50 | 4.00 – 7.00 | 15.00 – 17.00 | 0.04 max |
| Tensile strength | Yield strength | Elongation | Hardness |
|---|---|---|---|
| 680 MPa | 300 MPa | 50% | 210 |
| STANDARD | WNR | UNS | JIS | GOST | EN | OR |
|---|---|---|---|---|---|---|
| Hastelloy C276 | 2.4819 | N10276 | NW 0276 | ХН65МВУ | NiMo16Cr15W | ЭП760 |
| Modulus of elasticity | Density | Shear modulus | Melting Point |
|---|---|---|---|
| 195 GPa | 8 g/cm3 | 75 GPa | 1323- 1371 °C |
| Property | Hastelloy C276 | Hastelloy C22 | Inconel 625 |
|---|---|---|---|
| Pitting resistance | Excellent | Superior to C276 | Very good |
| Max service temp | ~1035°C | ~1035°C | ~980°C |
| Best for | Reducing acids, sour gas, chlorides | Oxidizing + reducing environments | High temperature + corrosion |
| Typical use | FGD, sour gas, HCl service | Mixed acid environments | Aerospace, marine, high temp process |
| Raw Material Verification | Incoming heat certificates checked against ASTM B622/B163 chemistry limits. |
|---|---|
| Positive Material Identification (PMI) | XRF spot testing to confirm alloy grade before dispatch. |
| Dimensional Inspection | OD, wall thickness, and length verified against tolerance (±0.2mm OD, ±10% thickness). |
| Hydrostatic / Pneumatic Testing | Pressure testing per ASTM B622 requirements. |
| Non Destructive Testing (NDT) | Eddy current or ultrasonic testing on request. |
| Surface & Visual Inspection | Ra ≤0.8 µm (base metal), Ra ≤1.6 µm (weld seam). |
| Third Party Inspection | SGS, Bureau Veritas, TÜV, or Lloyd’s Register inspection arranged on request. |
| Documentation | Mill Test Certificate (EN 10204 3.1/3.2), Certificate of Origin, Packing List. |
FAQs
Does Hastelloy C276 tube resist sour gas / H2S service?
Yes
Do you export Alloy C276 tube outside India?
Yes, we regularly exports to UAE, Oman, Mexico, Brazil, Ethiopia, Spain and Kenya
Can you supply custom lengths and processing?
Yes. Cutting, threading, bending, beveling, electropolishing, and draw/expansion to custom sizes are all available inhouse.
