ALLOY C-276（HASTELLOY C-276)

We are Distributors and Suppliers of ALLOYC276（Hastelloy C276 products

Characteristics Corrosion Resistance Applications Chemical Composition Mechanical properties International Standard Comparision Chart Stock Form And Sizes Round Bars

Hex Bars Nuts And Washers Spring Washer Hex Bolt Stud Bolt Flanges Sourceable Materials

Alloy C276 (Hastelloy C276)

Characteristics

Alloy C276 (Hastelloy C276) is a nickel-molybdenum-chromium alloy with added tungsten, designed for exceptional corrosion resistance in a wide range of aggressive environments. It offers excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Its low carbon and silicon content help minimize carbide precipitation during welding.

• Nickel-chromium-molybdenum alloy with tungsten
• Very low carbon and silicon content
• Excellent resistance to oxidizing and reducing agents
• High resistance to pitting, crevice corrosion, and stress corrosion cracking

Density: 8.89 g/cm³

Corrosion Resistance

Alloy C276 is resistant to a wide range of severe environments, including:

• Oxidizing and reducing agents
• Chloride-containing solutions
• Moist chlorine gas, hypochlorite, chlorine dioxide
• Concentrated oxidizing salts like ferric and cupric chlorides

Applications

• Chemical and petrochemical processing
• Pulp and paper industry (digestion and bleaching vessels)
• Flue gas desulfurization systems
• Acetic and sulfuric acid reactors and coolers
• MDI (methylene diphenyl isocyanate) production
• Phosphoric acid manufacturing
• Sour gas service
• High-pressure oxygen environments

Chemical Composition

Mechanical Properties

International Standards

Stock Forms and Availability

Round Bars: ASTM B574, ASME SB574, NACE MR0175 – Sizes from 1 mm to 350 mm

Hex Bars: ASTM B574 – Sizes: 10 mm to 36 mm

Nuts and Washers: Nut: JIS B1181 Class 1, Washer: JIS B1256 Grade A – Sizes: M4 to M20

Spring Washers: Sizes: M5 to M20

Hex Bolts: JIS B1180 Semi-Finished Type – Half and Full Thread – Sizes: M6 to M16, Lengths: 10 mm to 100 mm

Stud Bolts: Sizes: M6 to M16

Flanges: JIS 10K – Sizes: 20A to 100A

Sourceable Ex-Stock Materials