In the heart of a chemical plant, a vital mixer shaft faced total destruction from an unexpected acid leak until engineers sourced Hastelloy C22 Round Bars. These bars have since become the go-to for processes where failure means major losses, supporting next-generation reliability for chemical, oil & gas, marine, pharmaceutical, and power industries. With certified, traceable supply from Aurico Alloys LLP, procurement heads, OEMs, and hardware suppliers can access premium C22 bars for new builds and urgent spares that demand truly universal corrosion performance.

Table of Contents:

Hastelloy C22 (UNS N06022, ASTM B574, W.Nr. 2.4602) is a nickel-chromium-molybdenum-tungsten superalloy with a unique capacity to defeat pitting, crevice attack, and stress corrosion cracking in oxidizing and reducing acids, chlorine, and seawater. Outperforming C276 and high-end stainless grades, C22 offers peace of mind for industrial engineers specifying hardware or pressure vessels exposed to mixed chemical media, wet process streams, marine brines, or high-purity pharma lines.

Aurico Alloys LLP supplies Hastelloy C22 Round Bars in sizes 3mm–600mm, cut-to-length and available in rough, polished, or ground finish. Every shipment includes full ASTM, ASME, DIN/EN, and NACE MR0175/ISO 15156 certification for projects requiring rapid deployment, long-term asset security, and global documentation.

Below is an expert resource with complete technical data, covering specification, chemical and mechanical profiles, standard equivalencies, and main applications for buyers, engineers, and all SEO platforms seeking ultimate corrosion and mechanical reliability in demanding sectors.

High-quality Hastelloy C22 Round Bars for Industrial Applications

High-quality Hastelloy C22 Round Bars ready for industrial use.

Specification Overview

Supplier & ManufacturerAurico Alloys LLP
GradeHastelloy C22 (UNS N06022, W.Nr. 2.4602)
StandardsASTM B574, ASME SB574, DIN 2.4602, EN, NACE MR0175
Diameter Range3mm – 600mm (custom as required)
Length100mm – 6000mm (cut-to-length)
FinishBright, ground, black, rough turned, polished
DeliveryStock or custom, full MTC, export packing, urgent global supply
PriceINR 3,500 – 5,000 per kg. Indicative USD 41 – 59 per kg; quoted against grade, form, size and quantity.

Equivalent Grades & Standards

PropertyValue
UNS numberN06022
Werkstoff / EN number2.4602
EN designationNiCr21Mo14W
Density8.69 g/cm3
Melting range1357-1399 °C
Electrical resistivity1.14 µΩ·m
Thermal conductivity (50 °C)10.1 W/m·°C
Thermal diffusivity0.027 cm²/s
Coefficient of expansion (24-100 °C)12.4 µm/m·°C
Specific heat (50 °C)414 J/kg·°C
Dynamic modulus of elasticity206 GPa
Rod and bar specificationASTM B574

Identifiers and physical constants for Hastelloy C-22. A dash means no such designation is published for this grade.

Stock & Product Availability

Hastelloy C22 round bars from Aurico Alloys LLP are available in hot-rolled, cold-drawn, peeled, and ground finishes with custom machining, rapid stock, and export-ready MTC serving chemical, marine, pharma, energy, and supply chains worldwide.

Chemical Composition

ElementMin (%)Max (%)
Nickel (Ni)—Balance
Chromium (Cr)20.022.5
Molybdenum (Mo)12.514.5
Iron (Fe)2.06.0
Tungsten (W)2.53.5
Cobalt (Co)—2.5
Manganese (Mn)—0.50
Vanadium (V)—0.35
Carbon (C)—0.015
Silicon (Si)—0.08
Phosphorus (P)—0.02
Sulfur (S)—0.02

Composition limits for Hastelloy C-22. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.

Mechanical & Physical Properties

PropertyTypical Value
Tensile Strength (MPa)≥690
Yield Strength (MPa, 0.2%)≥310
Elongation (%)≥45
Hardness (Rockwell B)≤90
Max Service Temp (°C)Up to 1093

Applications & Benefits

Why this grade

Hastelloy C22 raises chromium to about 22% at the expense of tungsten. The extra chromium widens the margin in oxidising conditions — nitric acid, mixed acids, and oxidising chlorides such as ferric and cupric chloride — which is exactly where C276 is most likely to pit. It is the standard step up from C276 when the oxidising side of a mixed stream is the problem.

  • Chemical: Acid lines, reactors, evaporators, FGD, fertilizer, and mixed-media digesters.
  • Marine: Piping, fittings, seawater heat exchangers, coastal plant upgrades.
  • Oil & Gas: Downhole lines, sour service, chlorinated or acidic wells, refinery units.
  • Pharma: High-purity process vessels, reactor rods, cleanroom supports.
  • Power: Boiler tubes, condensers, flue-gas scrubbers, heat exchangers.
  • Fabrication/Supply: Fast spares for process, urgent OEM projects, major repairs in harsh chemical or marine settings.

Global Export Destinations

We ship worldwide from Mumbai. See every destination we export to on our export markets page.

Domestic Supply Network Across India

We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.

Conclusion

Hastelloy C22 Round Bars from Aurico Alloys LLP deliver unmatched resistance, strength, and compliance for the harshest chemical, oil & gas, marine, pharma, power, and hardware environments meeting ASTM, UNS, DIN, and NACE standards with stock and custom solutions worldwide. Are your most valuable assets protected by the world’s leading corrosion alloy bar?