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Material Properties: Hastelloy C276
Composition: Nickel-molybdenum-chromium alloy (Ni ~57%, Mo ~16%, Cr ~16%), containing small amounts of tungsten and iron.
C276 U-shaped tubes are one of the ultimate solutions for high-temperature, severe corrosion, and stress corrosion conditions, making them particularly suitable for heat exchange systems in demanding environments. Selection requires a rigorous assessment of the media composition, temperature, and pressure parameters, and custom production by a professional manufacturer.
Features of U-shaped Tubes
Structure: A single tube bent into a "U" shape, without welds (the bent section is integrally formed).
Advantages:
Thermal Compensation: Free expansion and contraction, relieving thermal stress and preventing thermal expansion damage.
Compact Layout: Space-saving, suitable for dense heat exchange environments.
Easy Maintenance: Individual tubes can be disassembled and replaced, reducing repair costs.
Manufacturing Difficulties: C276's high hardness requires high-power equipment for cold bending, and controlled springback and wall thickness reduction are essential (typically requiring ≥85% of the original wall thickness).
The chemical composition
Ni | Mo | Cr | Fe | Co | Mn | V | C | Si | P | S |
remainder | 15.0～17.0 | 14.5～16.5 | 4.0～7.0 | ≤2.5 | ≤1.0 | ≤0.35 | ≤0.01 | ≤0.08 | ≤0.04 | ≤0.03 |
Mechanical properties
Tensile strength (Mp) | 0.2% yield strength (Mpa) | Elongation A5(%) |
≥ 690 | ≥ 283 | ≥40 |
Density: 8.87g/cm3
Material Properties: Hastelloy C276
Composition: Nickel-molybdenum-chromium alloy (Ni ~57%, Mo ~16%, Cr ~16%), containing small amounts of tungsten and iron.
C276 U-shaped tubes are one of the ultimate solutions for high-temperature, severe corrosion, and stress corrosion conditions, making them particularly suitable for heat exchange systems in demanding environments. Selection requires a rigorous assessment of the media composition, temperature, and pressure parameters, and custom production by a professional manufacturer.
Features of U-shaped Tubes
Structure: A single tube bent into a "U" shape, without welds (the bent section is integrally formed).
Advantages:
Thermal Compensation: Free expansion and contraction, relieving thermal stress and preventing thermal expansion damage.
Compact Layout: Space-saving, suitable for dense heat exchange environments.
Easy Maintenance: Individual tubes can be disassembled and replaced, reducing repair costs.
Manufacturing Difficulties: C276's high hardness requires high-power equipment for cold bending, and controlled springback and wall thickness reduction are essential (typically requiring ≥85% of the original wall thickness).
The chemical composition
Ni | Mo | Cr | Fe | Co | Mn | V | C | Si | P | S |
remainder | 15.0～17.0 | 14.5～16.5 | 4.0～7.0 | ≤2.5 | ≤1.0 | ≤0.35 | ≤0.01 | ≤0.08 | ≤0.04 | ≤0.03 |
Mechanical properties
Tensile strength (Mp) | 0.2% yield strength (Mpa) | Elongation A5(%) |
≥ 690 | ≥ 283 | ≥40 |
Density: 8.87g/cm3
