C22 Hastelloy® Alloy Coil | Unrivaled Corrosion Resistance for Demanding Coil Applications

✓ Acid & Chloride Dominance: Resists boiling 10% HCl and 98% H₂SO₄ at 50°C (122°F) – 0.001mm/year corrosion rate.

✓ PREN ≥65: Validated by 20,000+ hours in ASTM G48 Method D seawater crevice corrosion testing.

✓ Thermal Stability: Maintains ductility from -200°C to 600°C (-328°F to 1112°F).

✓ Forming Precision: Cold-rolled to ±0.02mm thickness tolerance for seamless fabrication into pipes, heat exchangers, and vessels.

C22 Hastelloy® Alloy Coil (UNS N06022)

Engineered to dominate aggressive chemical and high-temperature environments, C22 Hastelloy® alloy coil combines a nickel-chromium-molybdenum-tungsten matrix (Ni-56%, Cr-22%, Mo-13%, W-3%) to deliver unmatched resistance to pitting, crevice corrosion, and oxidizing/reducing acids. Certified to ASTM B575, ASME SB-575, and NACE MR0175, this superalloy coil outperforms conventional stainless steels and other nickel alloys in chemical processing, pollution control, and offshore applications. Its unique composition ensures 3x the lifespan of C276 in mixed acid-chloride environments.

Thickness: 0.5mm–12mm (cold-rolled) / 3mm–25mm (hot-rolled)
Width: 300mm–2,000mm (slitting tolerance ±0.5mm)
Surface Finishes: 2B, BA (Bright Annealed), Pickled & Passivated
Mechanical Properties: Yield Strength ≥345 MPa | Tensile Strength ≥690 MPa | Elongation ≥45%

Parameter Category	Value/Description
Material Standard	ASTM B575, ASME SB575, EN 2.4602
Chemical Composition (%)	Ni ≥56, Cr 20–22.5, Mo 12.5–14.5, Fe 2.0–6.0, Co ≤2.5, W 2.5–3.5, C ≤0.015, Mn ≤0.50, Si ≤0.08, S ≤0.02, P ≤0.025, V ≤0.35
Tensile Strength (MPa)	≥690 (Annealed)
Yield Strength (MPa)	≥310 (Annealed)
Elongation (%)	≥45 (in 50mm gauge length)
Hardness	Brinell (HBW): ≤200; Rockwell (HRB): ≤95 (Annealed)
Density (g/cm³)	8.69
Melting Range (°C)	1325–1370
Thermal Conductivity (W/m·K)	10.1 (at 20°C)
Thermal Expansion (10⁻⁶/°C)	12.0 (20–100°C)
Electrical Resistivity (Ω·m)	1.28 × 10⁻⁶ (at 20°C)
Elastic Modulus (GPa)	210
Magnetic Permeability	Non-magnetic
Corrosion Resistance	Exceptional resistance to oxidizing and reducing acids (HCl, H₂SO₄, HNO₃), chlorides, pitting, crevice corrosion, and stress corrosion cracking (SCC).
Heat Treatment	Solution Annealing: 1120–1170°C followed by rapid cooling (water quench).
Surface Finishes	Cold-rolled bright annealed (BA), Pickled & Passivated, Polished (Ra ≤0.6μm).
Coil Dimensions	– Thickness: 0.5mm–6.0mm – Width: 100mm–1500mm – Inner Diameter (ID): 300mm–610mm – Outer Diameter (OD): ≤2500mm.
Key Applications	Chemical processing equipment, flue gas desulfurization (FGD) systems, heat exchanger tubes, pharmaceutical piping, seawater cooling coils.

C22 Hastelloy® Alloy Coil (UNS N06022) Applications

Industry	Critical Use Cases	C22 Coil Advantage
Chemical Processing	Sulfuric acid concentrators, HCl evaporators	0.0005mm/year corrosion rate in 40% H₂SO₄ + 5% HCl at 80°C.
Flue Gas Scrubbing	Wet scrubbers handling SOx/NOx/HF gases	Resists 15% HF + 20% H₂SO₄ at 120°C (248°F).
Pharmaceutical	Reactor liners, solvent recovery systems	Complies with FDA CFR 211.65 and EU GMP Annex 1 for sterile environments.
Marine Engineering	Seawater-cooled heat exchangers, piping	Immune to MIC (Microbiologically Influenced Corrosion) in stagnant seawater.

C22 Hastelloy® Alloy Coil (UNS N06022) Product Packaging

C22 Hastelloy® Alloy Coil (UNS N06022) (UNS N10276/N06022, ASTM B575 compliant) are engineered for extreme corrosion resistance in acid chloride, flue gas, and nuclear waste environments. To ensure flawless coil geometry and surface integrity during global transit, we deploy aerospace-inspired packaging systems and intelligent logistics protocols tailored for high-sensitivity rolled products.

Why Choose Us

Where Precision Meets Partnership，25 years of focus on metal material science，Not only a supplier, but also your engineering consultant，Fast and zero compromise，Sustainable trust cycle。

C22 Hastelloy® Alloy Coil (UNS N06022) Shipping

Sea transport

40HQ container (loading capacity 28 tons) / bulk carrier (LCL minimum 1 ton)

Air transport

reach major airports around the world within 7 days (DDP/DAP terms)

Land transport

door-to-door within China (qualification for dangerous goods transportation)

Our Services

We guarantee global door-to-door delivery within 7–15 business days via partnerships with DHL, Maersk, and UPS.

FAQ

Q1: How does C22 coil compare to C276 in HCl service?

A: C22 offers 50% higher corrosion resistance in **>10% HCl** due to its 3% tungsten and 22% chromium content. Upgrade to C22 for mixed acid-chloride environments.

Q2: What welding filler metals are recommended?

A: Use ERNiCrMo-10 (TIG) or ENiCrMo-10 (SMAW) with 0.5–1.2 kJ/mm heat input. Post-weld annealing is not required.

Q3: Are coils certified for sour gas applications?

Full compliance includes:

NACE MR0175/ISO 15156-3
DNVGL-OS-F101 for subsea pipelines
EN 10204 3.1 MTC with PMI

Q4: What’s the minimum order quantity (MOQ)?

Standard stock: 5 ton MOQ.

Custom widths/heat treatments: 10 tons MOQ (lead time 30 days).

Q5: How to prevent surface contamination during transit?

A: Specify Cleanroom Vacuum Sealing (ISO Class 5) for pharmaceutical/nuclear coils. Real-time IoT sensors ensure ≤0.1μg/cm² chloride during shipping.