C22 Hastelloy Alloy Plate | Unrivaled Corrosion Resistance for Extreme Environments

✓ Acid Dominance: Resists 98% sulfuric acid at 50°C (122°F) and boiling hydrochloric acid (10% HCl) – 3x lifespan vs. C276.

✓ Chloride Invincibility: PREN ≥65, validated by 20,000+ hours in ASTM G48 Method D seawater testing.

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

✓ Welding Precision: Low carbon content (0.015% max) prevents carbide precipitation during welding (ERNiCrMo-10 filler recommended).

C22 Hastelloy Alloy Plate (UNS N06022)

Engineered to dominate the most aggressive chemical and high-temperature environments, C22 Hastelloy alloy plate delivers unparalleled resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC). With a nickel-chromium-molybdenum-tungsten composition (Ni-56%, Cr-22%, Mo-13%, W-3%), this superalloy outperforms conventional stainless steels and even other Hastelloy grades in oxidizing and reducing acids. Certified to ASTM B575, ASME SB-575, and NACE MR0175, it is the ultimate choice for chemical processing, pollution control, and pharmaceutical applications where failure is catastrophic.

Thickness Range: 3mm–150mm (hot-rolled ±0.5%; cold-rolled ±0.03mm)
Surface Finishes: Pickled, Grinded (Ra ≤1.6μm), Electropolished (Ra ≤0.4μm)
Mechanical Properties: Yield Strength ≥345 MPa | Tensile Strength ≥690 MPa | Elongation ≥40% | Hardness ≤220 HBW

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), pitting, crevice corrosion, and stress corrosion cracking (SCC). Performs well in seawater, chlorides, and mixed acid environments.
Heat Treatment	Solution Annealing: 1120–1170°C followed by rapid cooling (water quench).
Surface Finishes	Hot-rolled, Cold-rolled, Annealed & Pickled, Ground, Polished (Ra ≤0.8μm).
Plate Dimensions	– Thickness: 3mm–200mm – Width: 1000mm–3000mm – Length: 2000mm–12000mm (customizable).
Key Applications	Chemical processing reactors, flue gas desulfurization (FGD) systems, nuclear fuel reprocessing, pharmaceutical equipment, marine components, waste incineration.

C22 Hastelloy Alloy Plate (UNS N06022) Applications

Industry	Critical Use Cases	C22 Hastelloy Advantage
Chemical Processing	Sulfuric acid reactors, HCl evaporators	0.0005mm/year corrosion rate in 98% H₂SO₄ at 60°C.
Pollution Control	Flue gas desulfurization (FGD) scrubbers	Resists 10% HCl + 5% HF at 80°C (176°F).
Pharmaceutical	API synthesis reactors, CIP systems	Complies with FDA CFR 211.65 and EU GMP Annex 1.
Oil & Gas	Downhole tools, sour gas pipelines	Survives H₂S >50,000 ppm + CO₂ at 200°C (392°F).

C22 Hastelloy Alloy Plate (UNS N06022) Product Packaging

C22 Hastelloy Alloy Plate (UNS N06022) deliver unmatched resistance to pitting, chloride stress corrosion, and extreme temperatures (up to 1,100°C). To safeguard these high-value materials from mill to mission-critical applications, we deploy aerospace-grade packaging and specialized handling protocols compliant with ASME SB-575, NACE MR0175, and EN 10088-3.

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