Hastelloy C276 Round Bar (UNS N10276)
Hastelloy C276 Round Bar is a nickel–chromium–molybdenum alloy renowned for its exceptional resistance to corrosion in severe chemical environments. It provides outstanding protection against pitting, crevice corrosion, stress corrosion cracking, and intergranular attack, even in strongly oxidizing and reducing media.
Hastelloy C276 Round Bar (also known as Alloy C276 Round Bar) is highly valued for its excellent fabricability and weldability, outperforming many high-molybdenum alloys. It is widely used in industries where reliability and long service life are critical under aggressive chemical and thermal conditions.
Key Features
- Exceptional resistance to pitting and crevice corrosion
- Outstanding resistance to stress corrosion cracking
- Performs well in both oxidizing and reducing environments
- Excellent resistance to chlorides, acids, and wet chlorine gas
- Good weldability without post-weld heat treatment
Equivalent Grades
| Standard | Grade |
|---|---|
| UNS | N10276 |
| DIN | 2.4819 |
| EN | NiCr15Mo16Fe6W |
| JIS | NW 276 |
Sizes
| Diameter Range | Length |
|---|---|
| 6 mm – 300 mm | 3 m, 6 m, Cut to Length |
| Custom Sizes | As per requirement |
Hastelloy C276 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 14.5 – 16.5 |
| Molybdenum (Mo) | 15.0 – 17.0 |
| Iron (Fe) | 4.0 – 7.0 |
| Tungsten (W) | 3.0 – 4.5 |
| Cobalt (Co) | ≤ 2.5 |
| Carbon (C) | ≤ 0.01 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 0.08 |
UNS N10276 Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 690 MPa |
| Yield Strength | ≥ 283 MPa |
| Elongation | ≥ 40% |
| Hardness | ~220 HB |
Alloy C276 Round Bar Physical Properties
| Property | Value |
|---|---|
| Density | 8.89 g/cm³ |
| Melting Range | 1325 – 1370°C |
| Thermal Conductivity | ~10.3 W/m·K |
| Electrical Resistivity | ~1.30 µΩ·m |
Types of Hastelloy C276 Round Bar
- Hot Rolled Hastelloy Round Bar
- Cold Drawn Hastelloy Round Bar
- Annealed Hastelloy Round Bar
- Bright / Precision Ground Hastelloy Round Bar
- Forged Hastelloy Round Bar
Applications
- Chemical processing equipment
- Oil & gas and petrochemical plants
- Pollution control and waste treatment systems
- Pulp and paper industry equipment
- Heat exchangers, reactors, and pressure vessels
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