What Are ASTM B575 Hastelloy C22 Coils and Why Do EPC Buyers Prefer Them?
Hastelloy C22 is a nickel-chromium-molybdenum-tungsten alloy engineered for extreme conditions. Unlike conventional stainless steels or lower nickel alloys, it delivers:
- Outstanding Corrosion Resistance – survives chlorides, seawater & mixed acids
- High-Temperature Stability – resists oxidation in thermal cycling environments
- EPC-Ready Compliance – ASTM B575 / ASME SB575 certified
- Versatile Uses – reactors, scrubbers, desalination plants, and chemical piping
For buyers managing critical projects, Hastelloy C22 coils are not a choice—they’re a necessity for risk-free performance.
Procurement Challenges Buyers Face When Sourcing Hastelloy C22 Coils
Procurement teams across industries report the same challenges:
- Receiving wrong grades or untested substitutes
- Missing EN 10204 / NACE / PED documents in audits
- Overpriced quotations with hidden CIF/FOB charges
- Damaged coils due to poor packaging during transit
- Late shipments that stall EPC shutdown timelines
Navgraha Steels INC eliminates these risks by offering:
- Certified Supply Only – NACE, PED, IBR, EN 10204 compliant
- Export Packaging – slit coil protection, rust-proof wrapping, fumigated crates
- Mumbai Stock + Mill Allocations – urgent dispatch readiness
- Transparent Pricing – no hidden charges, clear CIF/FOB terms
- Audit-Ready Docs – MTCs + TPI reports from SGS, TUV, Lloyd’s, BV
Applications of Hastelloy C22 Coils in Chemical, Marine, Refinery & Power Industries
Our Hastelloy C22 coils are widely used where corrosion resistance and reliability cannot be compromised:
- Chemical Processing Plants – scrubbers, heat exchangers, piping systems
- Marine & Offshore Projects – desalination plants, seawater handling, offshore rigs
- Oil & Gas Refineries – sour gas applications, reactors, towers
- Power Generation – boilers, FGD units, and high-temperature ducts
- EPC Project Shutdowns – urgent supply of slit coils & strips
Wherever buyers face extreme chemical attack or seawater corrosion, Hastelloy C22 coils deliver long-term safety, compliance, and confidence.
Mechanical Properties of Hastelloy C22 Coils (Strength, Ductility & Performance)
- Tensile Strength: ≥ 690 MPa
- Yield Strength (0.2% offset): ≥ 283 MPa
- Elongation: ≥ 40%
- Hardness (Brinell): ≤ 95 HB
- Impact Resistance: Reliable even in fluctuating temperatures
Buyer Value: High strength + ductility ensures long service life under corrosive & high-heat conditions.
Chemical Composition of UNS N06022 / Werkstoff Nr. 2.4602 Coils
| Element |
Content (%) |
| Nickel (Ni) |
Balance (~56) |
| Chromium (Cr) |
20.0 – 22.5 |
| Molybdenum (Mo) |
12.5 – 14.5 |
| Iron (Fe) |
2.0 – 6.0 |
| Tungsten (W) |
2.5 – 3.5 |
| Cobalt (Co) |
≤ 2.5 |
| Manganese (Mn) |
≤ 0.5 |
| Carbon (C) |
≤ 0.015 |
| Silicon (Si) |
≤ 0.08 |
Buyer Value: This balanced chemistry makes C22 coils resistant to oxidizing & reducing agents, outperforming cheaper stainless steels.
Standards, Certifications & Equivalent Grades of Hastelloy C22 Coils
- Standards: ASTM B575 / ASME SB575
- UNS: N06022
- Werkstoff Nr.: 2.4602
- Trade Name: Alloy 22
- Certifications: EN 10204 3.1 / 3.2, NACE MR0175, PED, CE, IBR
- TPI Options: SGS, TUV, Lloyd’s, BV, DNV
Buyer Value: Coils come audit-ready for EPC and refinery projects.
Thickness Range, Widths, Coil Sizes & Slit Options Available
- Thickness: 0.3 mm – 12 mm
- Widths: 1000 mm, 1250 mm, 1500 mm, 2000 mm
- Inner Diameter (ID): 508 mm (custom on request)
- Supply Forms: Hot Rolled (HR), Cold Rolled (CR), Precision Slit Coils
- Finishes: Matte, polished, protective film coated
- Custom Options: Narrow strips, slit coils, cut-to-length
Buyer Value: EPC teams get dimensionally accurate coils → saves fabrication cost, reduces wastage.
Heat Treatment, Weldability & Fabrication Benefits of Hastelloy C22 Alloy Coils
- Heat Treatment: Solution annealed at 1120°C, water quenched
- Weldability: Excellent – TIG, MIG & SAW compatible
- Formability: Can be slit, cut, rolled, or stamped without cracking
- Corrosion Resistance: Performs in chlorides, seawater, HCl, H2SO4 & oxidizers
Buyer Value: Coils can be easily fabricated into strips, piping, or reactor linings without performance compromise.
Value-Added Services Offered by Navgraha Steels INC on Hastelloy C22 Coils
- Slitting & Strips: Custom slit coils for chemical & marine projects
- Cut-to-Size Supply: As per EPC project drawings
- Surface Finishes: Polished, matte, protective film
- Edge Treatment: Deburred, chamfered, or bevelled for fabrication
- Export Packaging: Rust-proof wrapping + seaworthy wooden crates
- TPI Documentation: EN 10204 3.1/3.2, SGS, Lloyd’s, TUV reports
Buyer Value: Coils arrive project-ready, minimizing buyer effort & risk.
Why Global EPC Buyers Trust Navgraha Steels INC for Hastelloy C22 Coils
- Global Export Expertise – regular supply to GCC, Africa, Europe & Asia
- Audit-Ready Documents – EN 10204 3.1/3.2, NACE MR0175, PED, CE
- Trusted by Refineries & EPCs – approved in chemical & power projects
- On-Time Dispatch – from Mumbai stockyard & mill schedules
- Fair & Transparent Pricing – CIF, FOB & door-to-site clarity
Buyers choose Navgraha because we deliver certainty, compliance, and value.
Other Nickel Alloy Coils Supplied Alongside Hastelloy C22
- Hastelloy C276 Coils
- Hastelloy B2 Coils
- Inconel 625 Coils
- Monel 400 Coils
- Duplex & Super Duplex Coils
Buyer Benefit: One supplier → multiple nickel alloys → simplified procurement.
Export Packaging, Seaworthy Logistics & Global Delivery
- Seaworthy Packing – rust-proof wrapping, edge guards, wooden crates
- Sea Freight – via Nhava Sheva / JNPT for CIF/FOB exports
- Air Freight – urgent shutdown / EPC project deliveries
- Transit Protection – fumigation + moisture barrier + strapped pallets
Buyer Benefit: Coils arrive damage-free, customs-cleared, and project-ready.
How to Select the Right Hastelloy C22 Coil Supplier
Before ordering, always check if the supplier provides:
- ASTM B575 compliance with EN 10204 MTCs
- NACE MR0175 & PED certification
- Slitting & cut-to-size options for EPC projects
- TPI inspections (SGS, Lloyd’s, TUV, BV, DNV)
- Seaworthy export packing + on-time shipping
Navgraha Steels INC meets all these benchmarks.
