ASTM B626 Welded Hastelloy C22 & C276 Alloy Tube
- Grade: UNS N10001, UNS N10655, UNS N10675, UNS N10276, UNS N06022, UNS N06455, UNS N06200, UNS N06210, UNS R30556, UNS R20033
- Outside Diameter (OD): 12.7-127mm
- Wall Thickness (WT): 1.2-12.7mm
ASTM B626 Welded Nickel-Cobalt (Hastelloy C22 & C276) Alloy Tube
Golden Sunbird Metals supplies ASTM B626 welded Hastelloy C22 and C276 alloy tube for service in highly corrosive environments where dependable performance is critical. Produced by automatic welding and supplied in solution-annealed condition, these nickel-cobalt alloy tubes are designed for heat exchangers, condensers, chemical processing equipment, and other corrosive-service applications. The product range covers OD from 12.7 mm to 127 mm and wall thickness from 1.2 mm to 12.7 mm, with key grades including UNS N06022 and UNS N10276. Hastelloy C22 offers strong resistance to oxidizing and non-oxidizing chemicals, pitting, crevice corrosion, and stress corrosion cracking, while Hastelloy C276 is widely valued for its weldability and broad resistance to acids, chlorides, halides, and sour oilfield environments. With strict quality control and reliable inspection options, Golden Sunbird Metals provides ASTM B626 welded alloy tube solutions built for demanding industrial projects worldwide.
Grades: UNS N10001, UNS N10655, UNS N10675, UNS N10276, UNS N06022, UNS N06455, UNS N06200, UNS N06210, UNS R30556, UNS R20033
Chemical Composition (wt. %) of ASTM B626 Welded Hastelloy C22 & C276 Alloy Tube
| Element | UNS N10001 | UNS N10675 | UNS N10276 | UNS N06022 | UNS N06455 | UNS N06200 | UNS N06210 | UNS R30556 | UNS R20033 |
| Ni | Remainder | Remainder | Remainder | Remainder | Remainder | Remainder | Remainder | Remainder | Remainder |
| Cr | 1.0 max | – | 14.5-16.5 | 20.0-22.5 | 14.0-18.0 | 19.0-21.0 | 19.0-23.0 | 17.0-20.0 | 18.0-20.0 |
| Mo | 26.0-30.0 | 27.0-32.0 | 15.0-17.0 | 12.5-14.5 | 15.0-17.0 | 2.5-3.5 | 24.0-26.0 | 15.0-17.0 | 1.5 max |
| Fe | 4.0-6.0 | 4.0-6.0 | 4.0-7.0 | 2.0-6.0 | 2.0 max | 3.0 max | 2.0 max | 18.0-21.0 | 17.0-20.0 |
| W | – | – | 3.0-4.5 | 2.5-3.5 | – | – | – | 1.0-3.0 | – |
| Co | – | – | 2.5 max | 2.0 max | – | – | – | 1.0 max | – |
| C | 0.05 max | 0.01 max | 0.01 max | 0.015 max | 0.05 max | 0.01 max | 0.015 max | 0.05 max | 0.03 max |
| Si | 1.0 max | 1.0 max | 0.08 max | 0.08 max | 1.0 max | 0.08 max | 0.50 max | 0.75 max | 0.75 max |
| Mn | 1.0 max | 1.0 max | 1.0 max | 0.50 max | 1.0 max | 0.35 max | 0.25 max | 1.0 max | 1.0 max |
| Others | Specified in individual standards | ||||||||
Mechanical Properties of ASTM B626 Welded Hastelloy C22 & C276 Alloy Tube
| Property | UNS N10001 | UNS N10675 | UNS N10276 | UNS N06022 | UNS N06455 | UNS N06200 | UNS N06210 | UNS R30556 | UNS R20033 |
| Tensile Strength (ksi) | 100 | 110 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Yield Strength (0.2% Offset, ksi) | 45 | 51 | 41 | 45 | 40 | 45 | 45 | 45 | 45 |
| Elongation (%) | 40 | 40 | 40 | 45 | 40 | 45 | 45 | 40 | 40 |
Features
- Manufactured to ASTM B626 for welded nickel and nickel-cobalt alloy tubes, intended for heat exchanger, condenser, and general corrosive service applications.
- Available in HASTELLOY C-22 (UNS N06022) and HASTELLOY C-276 (UNS N10276), two proven nickel-chromium-molybdenum alloys for aggressive corrosive environments.
- HASTELLOY C-22 offers excellent resistance to both oxidizing and non-oxidizing chemicals, with strong protection against pitting, crevice attack, and stress corrosion cracking.
- HASTELLOY C-276 combines excellent weldability with outstanding resistance to oxidizing and non-oxidizing acids, chlorides, and halides, and is widely used in sour oilfield environments.
- Supplied in welded tube form with solution-annealed condition and testing / inspection options available per specification.
Technical Specifications
| Specification | Value |
| Standard | ASTM B626 Welded Nickel and Nickel-Cobalt Alloy Tube |
| Grade | UNS Nos. N10001, N10242, N10665, N12160, N10629, N10624, N10675, N10276, N06455, N06007, N06975, N08320, N06985, N06002, N06022, N06030, N06035, N06058, N06059, N06200, N06210, N08031, R30556, N06230, N06686, and R20033 |
| Manufacturing Process | Automatic welding |
| Seam Type | Welded |
| Tube Size | Outside Diameter (OD) Range: 12.7-127mm, Wall Thickness (WT) Range: 1.2-12.7mm |
| Length | 6000-12000mm |
| Delivery Condition | Solution-annealed |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Test | Chemical analysis, Tensile test, Flattening test, Expansion test, Hydrostatic test, Nondestructive testing (NDT), Intergranular corrosion test, Metallographic examination |
Applications
- Chemical processing equipment, including reactors, heat exchangers, and columns.
- Condenser tubes and other heat-transfer tubing in corrosive service.
- Acid-handling systems exposed to oxidizing and reducing chemicals, chlorides, and other halides.
- HASTELLOY C-22 service in hazardous waste treatment, scrubbers, wastewater treatment, flue gas desulfurization, and spent acid reclamation.
- HASTELLOY C-276 service in sour oilfield and other high-corrosion environments.
