Hastelloy C-276 (UNS N10276) Seamless Pipes & Tubes Manufacturer & Supplier
Alloy C-276 (Hastelloy C-276, UNS N10276) is considered the most versatile corrosion-resistant alloy available. With 16% molybdenum, 16% chromium, and 4% tungsten in a nickel base, it resists the formation of grain-boundary precipitates in the weld heat-affected zone, making it suitable for most chemical process applications in the as-welded condition.
UNS: N10276 | Category: Nickel-Molybdenum-Chromium Alloy | Werkstoff Nr: 2.4819 | EN Name: NiMo16Cr15W
Alloy C-276 — Also Known As
Alloy C-276 is also commonly known as Alloy C-276, Hastelloy C-276 (UNS N10276) Seamless Pipes & Tubes, N10276, UNS N10276, 2.4819, Werkstoff 2.4819, W.Nr 2.4819, NiMo16Cr15W, alloy c276, c276, c-276, hastelloy c276, hastelloy c-276.
Alloy C-276 — Applicable Standards & Specifications
Alloy C-276 is commonly supplied to ASTM B622, ASME SB622, ASTM B619, ASME SB619, ASTM B626, ASME SB626, ASTM B775, ASME SB775, ASTM B829, ASME SB829.
Size Range
Outer Diameter: 1/4" NPS to 10" NPS (6.35mm to 273.1mm OD)
Wall Thickness: SCH 5S to SCH 80S
Chemical Composition (%)
| Ni | Mo | Cr | W | Fe | Co | C | Mn | Si | V |
|---|---|---|---|---|---|---|---|---|---|
| Remainder | 15.0-17.0 | 14.5-16.5 | 3.0-4.5 | 4.0-7.0 | 2.5 max | 0.01 max | 1.00 max | 0.08 max | 0.35 max |
Mechanical Properties
- Tensile Strength
- 690 MPa min
- Yield Strength
- 283 MPa min
- Elongation
- 40% min
- Hardness
- N/A
Physical Properties
- Density
- 8.89 g/cm3
- Melting Range
- 1325-1370 C
- Thermal Conductivity
- 10.2 W/m-K
- Electrical Resistivity
- 1300 nOhm-m
- Specific Heat
- 427 J/kg-K
- Coeff. of Thermal Expansion
- 11.2 um/m-C
Corrosion Resistance
- Pitting Resistance (PREN)
- >70 (highest available)
- Max Service Temp (Oxidizing)
- 1093 C
- Intergranular Corrosion
- Outstanding (low C)
- Stress Corrosion Cracking
- Virtually immune
- General Corrosion Rate
- Nil in most acids
- Seawater Resistance
- Outstanding
Applicable Standards
- ASTM B622 / ASME SB622
- ASTM B619 / ASME SB619
- ASTM B626 / ASME SB626
- DIN 17751
Applications
- Severe chemical processing environments
- Flue gas desulfurization (wet FGD)
- Pharmaceutical reactor vessels
- Waste treatment and incineration
- Nuclear fuel reprocessing
- Acetic acid and formic acid production
Industries Served
- Chemical Processing
- Pharmaceutical
- Nuclear
- Waste Treatment
- FGD Systems
Key Advantages
- Widest range of corrosion resistance of any alloy
- Outstanding resistance to both oxidizing and reducing acids
- Virtually immune to pitting and SCC
- Excellent as-welded corrosion resistance (ultra-low C)
- The universal alloy for severe chemical environments
- PREN >70 - unmatched pitting resistance
Equivalent Grades
- ASTM
- N10276
- Trade
- Hastelloy C-276
- DIN
- 2.4819