Hastelloy C276 Seamless Pipe
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Hastelloy C276 Seamless Pipes is one of the few alloys resistant to wet chloride gas, hypochlorite and chlorine dioxide solutions. Quite referred as WNR 2.4819 Seamless Pipes, this alloy has exceptional resistance to strong solutions of oxidizing salts, such as ferric and cupric chlorides. UNS N10276 Seamless Pipes is not prone to grain boundary precipitation in the as welded condition and therefore suitable for many chemical process applications.
ASTM B622 Hastelloy C276 Seamless Pipe Specifications
| Specifications | ASTM, ASME B 622 |
| Dimensions |
ASTM, ASME and API |
| Size | 15NB TO 150 NB IN |
| Seamless B622 Pipes | 1 1/2" NB - 16" NB |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Grade | Hastelloy C276 (UNS No. N10276) |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Specialized in | Large Diameter Size |
| Length | Single Random, Double Random & Required Length |
| Form | Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes |
| End | Plain End, Beveled End, Treaded |
ASTM B622 Hastelloy C276 Seamless Pipes Physical Properties
The following table shows the physical properties of HASTELLOY(r) C276.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.89 g/cm³ | 0.321 lb/in³ |
| Melting point | 1371°C | 2500°F |
ASTM B622 Alloy C276 Seamless Pipes Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength (@thickness 4.80-25.4 mm, 538°C/@thickness 0.189-1.00 in, 1000°F) | 601.2 MPa | 87200 psi |
| Yield strength (0.2% offset, @thickness 2.40 mm, 427°C/@thickness 0.0945 in, 801°F) | 204.8 MPa | 29700 psi |
| Elastic modulus (RT) | 205 GPa | 29700 ksi |
| Elongation at break (in 50.8 mm, @thickness 1.60-4.70 mm, 204°C/@thickness 0.0630-0.185 in, 399°F) | 56% | 56% |
| Hardness, Rockwell B (plate) | 87 | 87 |
ASTM B622 Hastelloy Alloy C276 Seamless Pipes Thermal Properties
The thermal properties of HASTELLOY(r) C276 are given in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@24-93°C/75.2-199°F) | 11.2 µm/m°C | 6.22 µin/in°F |
| Thermal conductivity (-168 °C) | 7.20 W/mK | 50.0 BTU in/hr.ft².°F |
ASTM B622 Hastelloy C276 Seamless Pipes Apllication
The hastelloy alloy C276 / C22 Pipes and Tubes is used in the following applications:
- Chlorination systems
- Flue gas scrubbers
- Outlet ducting and stack liners for power plants, pulp and paper bleach plants, sulfur dioxide scrubbers, and weld overlay of less corrosion resistant metals
- Acid production and pickling systems
- Pharmaceutical industries use alloy C-22 fittings and tubing to avoid contamination caused by corrosion related failures
- Cellophane manufacturing
- Chlorination systems
- Pesticide production
- Incineration scrubber systems
- Chemical process industry in equipment like flue gas scrubbers, chlorination systems, sulfur dioxide scrubbers, pulp and paper bleach plants, pickling systems, and nuclear fuel reprocessing
- Waste water processing
- Pollution control stack liners, ducts, dampers, scrubbers, stack-gas reheaters, fans and fan housings
- Flue gas desulfurization systems
- Chemical processing components like heat exchangers, reaction vessels, evaporators, and transfer piping
- Sour gas wells
- Pulp and paper production
- Waste treatment
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