Hastelloy C276 Sheet introduction
Hastelloy C276 is a nickel-based superalloy made from nickel-molybdenum-chromium alloys in the Hastelloy series. It has excellent corrosion resistance, especially in oxidation and reduction environments, as well as excellent resistance to pitting, crevice corrosion and stress corrosion cracking. Hastelloy C276 plate is widely used in chemical industry, oil, natural gas, environmental protection and other fields.

Main parameter of Hastelloy C276 Sheet
Chemical composition (typical value) :

• Nickel (Ni) : margin (about 57%)
• Molybdenum (Mo) : 15-17%
• Chromium (Cr) : 14.5-16.5%
• Iron (Fe) : 4-7%
• Tungsten (W) : 3-4.5%
• Cobalt (Co) : ≤ 2.5%
• Manganese (Mn) : ≤ 1.0%
• Silicon (Si) : ≤ 0.08%
• Carbon (C) : ≤ 0.01%
• Phosphorus (P) : ≤ 0.04%
• Sulfur (S) : ≤ 0.03%

Physical properties of Hastelloy C276 Sheet

• Density: 8.89 g/cm³
• Melting point: 1325-1370°C
• Coefficient of thermal expansion: 12.6μm /m·°C (20-100°C)
• Thermal conductivity: 10.1 W/m·K (20°C)
• Resistivity: 1.29 μΩ·m (20°C)

Mechanical properties of Hastelloy C276 Sheet

• Tensile strength: ≥ 690 MPa
• Yield strength: ≥ 283 MPa
• Elongation: ≥ 40%
• Hardness: ≤ 100 HRB

Peculiarity of Hastelloy C276 Sheet

Excellent corrosion resistance:Performs well in both oxidizing and reducing environments.

• It has high resistance to strong corrosive media such as chloride, sulfuric acid, hydrochloric acid and phosphoric acid.Resist pitting corrosion, crevice corrosion and stress corrosion cracking.
• High temperature performance:It can still maintain good mechanical properties and corrosion resistance at high temperatures.
• Processing properties:It can be formed by cold working and hot working, but pay attention to the phenomenon of work hardening.
• Good welding performance, suitable for a variety of welding methods (such as TIG, MIG, electrode arc welding).
• Widely used:Suitable for extreme corrosive environments and high strength requirements.

Standard of Hastelloy C276 Sheet
Hastelloy C276 plates are manufactured and tested in accordance with the following international standards:

• ASTM B575: Standard Specification for Nickel-Molybdenum-chromium alloy Sheets, Sheets, and strips.
• ASME SB575: Same as ASTM B575 for pressure vessels and boilers.
• EN 2.4819: the European standard for Hastelloy C276.
• N10276: brand in the UNS (Unified Numbering System).

Application of Hastelloy C276 Sheet
Hastelloy C276 sheets are widely used in the following fields:

• Chemical Industry:Reactor, heat exchanger, evaporator.Equipment in strong acid environment such as sulfuric acid, hydrochloric acid and phosphoric acid.
• Oil and Gas:Oil and gas production equipment, pipelines, valves.Acid gas environment (such as hydrogen sulfide environment).
• Environmental protection:Flue gas desulfurization (FGD) system.Wastewater treatment equipment.Pharmaceutical and Food Processing:High purity media processing equipment.
• Marine Engineering:Seawater desalination equipment.Offshore platforms and subsea pipelines.

Hastelloy C276 sheet is a high-performance nickel-based alloy material with excellent corrosion resistance, high temperature properties and mechanical strength. It complies with international standards such as ASTM B575, ASME SB575 and EN 2.4819, and is widely used in extreme corrosive environments in chemical, petroleum, environmental protection and other fields