Hastelloy C22/C276 Round Bars & Rods

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Hastelloy C22 / C276 Explained

Hastelloy C22 and C276 are nickel-chromium-molybdenum based alloys. To begin with, they are specifically engineered to provide outstanding resistance to corrosion in extremely aggressive chemical environments. Furthermore, these alloys offer exceptional protection against pitting, crevice corrosion, and stress corrosion cracking — even in the presence of chlorides, oxidizing agents, and strong acids.

Which Hastelloy grade is right for your application? First and foremost, Hastelloy C22 delivers superior resistance to localized corrosion and enhanced weldability — making it ideal for complex fabricated assemblies. In addition, Hastelloy C276 is known for its excellent overall corrosion resistance and long-term reliability in both oxidizing and reducing conditions. Moreover, both grades maintain high mechanical strength and structural stability across a wide temperature range, ensuring dependable performance over the long term.

Consequently, Hastelloy C22 / C276 are widely used in chemical processing equipment, reactors, and heat exchangers. Furthermore, they are also trusted in pollution control systems, oil & gas components, and pulp and paper plants. Equally important, their combination of extreme corrosion resistance, mechanical strength, and operational durability makes them the preferred choice for critical applications where material failure is not an option.

Need premium Hastelloy round bars for your most demanding application? Contact our technical team today — we’ll help you select the right grade (C22 or C276) and specifications for your requirements, and provide a competitive quote tailored to your needs.

Other Types of Hastelloy Alloy C22 / C276 Bars

Hastelloy Alloy C22 C276 Square Bar
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Hastelloy Alloy C22 / C276 Square Bar
  • Hastelloy square bars for extreme corrosion environments
  • Material grades: UNS N06022, UNS N10276
  • Manufactured as per ASTM B574 and ASME SB574
  • Excellent resistance to pitting and crevice corrosion
Hastelloy Alloy C22 C276 Hex Bar
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Hastelloy Alloy C22 / C276 Hex Bar
  • Hexagonal Hastelloy bars for fasteners and critical fittings
  • Produced under ASTM B574 Hastelloy specifications
  • Available in hot rolled, bright drawn, and polished finishes
  • Used in chemical processing and oil & gas systems
Hastelloy Alloy C22 C276 Rectangular Bar
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Hastelloy Alloy C22 / C276 Rectangular Bar
  • Rectangular Hastelloy bars for structural and fabrication use
  • Manufactured as per ASTM B574 / ASME SB574
  • Grades: Hastelloy C22 and Hastelloy C276
  • Ideal for aggressive chemical and process industries
Hastelloy Alloy C22 C276 Flat Bar
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Hastelloy Alloy C22 / C276 Flat Bar
  • Hastelloy flat bars with outstanding chemical resistance
  • Conforms to ASTM B574 and ASME SB574 standards
  • Supplied in hot rolled, annealed, and polished conditions
  • Widely used in reactors, scrubbers, and heat exchangers
Hastelloy Alloy C22 C276 Bright Bar
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Hastelloy Alloy C22 / C276 Bright Bar
  • Bright finished Hastelloy bars with superior surface quality
  • Ideal for precision machining and valve components
  • Produced as per ASTM B574 specifications
  • Ensures tight tolerances and uniform performance
Hastelloy Alloy C22 C276 Forged Bar
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Hastelloy Alloy C22 / C276 Forged Bar
  • Forged Hastelloy bars for high-stress and pressure applications
  • Exceptional resistance to corrosion and thermal fatigue
  • Grades: Hastelloy C22 and Hastelloy C276
  • Used in oil & gas, chemical, and pollution control systems

C22 / C276 HASTELLOY ROUND BAR EQUIVALENT GRADES

STANDARD UNS WNR. JIS EN
Hastelloy C22 N06022 2.4602 NW 6022 NiCr21Mo14W
Hastelloy C276 N10276 2.4819 NW 0276 NiMo16Cr15W

SPECIFICATION OF HASTELLOY C22 / C276 ROUND BAR

StandardASTM B574 / ASME SB574
Dimension StandardEN, DIN, JIS, ASTM, BS, ASME, AISI
Size14 mm – 300 mm
Length1 to 6 meters, Custom Cut Length
FormRound, Square, Hex (AF), Rectangle, Billet, Ingot, Forging

CHEMICAL COMPOSITION OF HASTELLOY C22 / C276 ROUND BAR

GradeCMnSiS CoNiCrFeMoP
C22 0.010 max 0.50 max 0.08 max 0.02 max 2.5 max Balance 20.0 – 22.5 2.0 – 6.0 12.5 – 14.5 0.02 max
C276 0.01 max 1.0 max 0.08 max 0.03 max 2.5 max Balance 14.5 – 16.5 4.0 – 7.0 15.0 – 17.0 0.04 max

MECHANICAL PROPERTIES OF HASTELLOY C22 / C276 ROUND BAR

Grade Tensile Strength (ksi) 0.2% Yield Strength (ksi) Elongation (%) Hardness (HRB)
C22 115 55 60 ≤ 89
C276 110 52.6 62 —

💡 Practical Difference in Use

Use Hastelloy C22 / C276 Round Bars when: extreme resistance to pitting, crevice corrosion, stress corrosion cracking, and aggressive chemical attack is required across both oxidizing and reducing environments. Hastelloy is a nickel-chromium-molybdenum alloy family designed for severe chemical processing and highly corrosive service conditions. → Example: chemical reactors, heat exchangers, scrubbers, pollution control equipment, oil & gas processing systems, and pharmaceutical plants.


Bright Finished / Machined Hastelloy Round Bars when: tight dimensional tolerances, smooth surface finish, and high-precision fabrication are essential for critical components. Bright drawn or machined Hastelloy bars improve machinability and ensure consistent performance in corrosive service. → Example: valve stems, precision shafts, fasteners, pump components, and CNC-machined chemical processing parts.

Applications of Hastelloy C22 / C276 Round Bars

Hastelloy round bars are extensively used in industries where maximum corrosion resistance, reliability, and long service life are essential.

  • Chemical Processing: Reactors, heat exchangers, valves, pumps.
  • Oil & Gas: Sour gas systems, offshore processing equipment.
  • Pollution Control: Scrubbers, ducting, flue gas systems.

When to Choose Hastelloy C22 / C276 Round Bars?

The selection depends on corrosion severity, operating temperature, fabrication requirements, and service life expectations.

Choose Hastelloy Round Bars when:

  • Resistance to severe chemical corrosion is critical
  • Protection against pitting and crevice corrosion is required
  • Components operate in mixed oxidizing and reducing media
  • Resistance to stress corrosion cracking is essential
  • Long-term reliability in aggressive environments is needed
  • Used in chemical, oil & gas, and pollution control industries

Bright / Machined Hastelloy Round Bars are preferred when:

  • High dimensional accuracy is required
  • Smooth surface finish is essential
  • Precision machining or threading is involved
  • Uniform mechanical properties are necessary
  • Used in valves, fasteners, and pump assemblies
  • Applied in critical chemical processing systems

Industries That Use Hastelloy C22 / C276 Round Bars

Hastelloy alloys are widely used in extreme service environments requiring superior corrosion resistance and operational reliability.

Chemical Processing Industry

Used in highly aggressive chemical environments.

Uses

Reactors, heat exchangers, valves.

Why Hastelloy?

Exceptional resistance to acids, chlorides, and oxidizers.

Oil & Gas Industry

Used in sour gas and offshore processing systems.

Uses

Processing equipment, fasteners.

Why Hastelloy?

Superior corrosion resistance in harsh hydrocarbon environments.

Pollution Control & Power

Used in high-temperature corrosive exhaust systems.

Uses

Scrubbers, ducting, flue gas components.

Why Hastelloy?

Long service life under extreme chemical and thermal exposure.

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Looking for high-quality Hastelloy C22 / C276 Round Bars & Rods? Our products are manufactured in compliance with ASTM B574 and ASME SB574 standards . Get in touch with us today.

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