C4 Hastelloy® Alloy Coil | Superior Corrosion Resistance for Harsh Chemical Environments

✓ Sulfuric Acid Dominance: Resists 98% H₂SO₄ at 50°C (122°F) with <0.01mm/year corrosion rate – 5x lifespan vs. 316L.

✓ Chloride Immunity: PREN ≥50, validated by 15,000+ hours in ASTM G48 Method D seawater crevice corrosion testing.

✓ Thermal Stability: Maintains structural integrity from -50°C to 400°C (-58°F to 752°F).

✓ Precision Cold Rolling: Tight tolerance ±0.02mm thickness for seamless fabrication into heat exchangers, tanks, and reactor liners.

C4 Hastelloy® Alloy Coil (UNS N06455)

Engineered to excel in extreme oxidizing and reducing environments, C4 Hastelloy® alloy coil combines a nickel-chromium-molybdenum matrix (Ni-65%, Cr-16%, Mo-16%) to deliver unmatched resistance to sulfuric acid, hydrochloric acid, and chloride-induced stress corrosion cracking (SCC). Certified to ASTM B575, ASME SB-575, and NACE MR0175, this high-performance alloy outperforms conventional stainless steels and other nickel alloys in chemical processing, pollution control, and nuclear applications where reliability is critical.

Thickness: 0.5mm–12mm (cold-rolled) / 3mm–25mm (hot-rolled)
Width: 300mm–2,000mm (slitting tolerance ±0.5mm)
Surface Finishes: Pickled, BA (Bright Annealed), Electropolished (Ra ≤0.4μm)
Mechanical Properties: Yield Strength ≥300 MPa | Tensile Strength ≥670 MPa | Elongation ≥40%

Parameter Category	Value/Description
Material Standard	ASTM B575, ASME SB575, EN 2.4610
Chemical Composition (%)	Ni ≥65, Cr 14–18, Mo 14–17, Fe ≤3.0, C ≤0.015, Mn ≤1.0, Si ≤0.08, S ≤0.03, Co ≤2.0, Ti ≤0.7, Al ≤0.5
Tensile Strength (MPa)	≥690 (Annealed)
Yield Strength (MPa)	≥283 (Annealed)
Elongation (%)	≥40 (in 50mm gauge length)
Hardness	Brinell (HBW): ≤230; Rockwell (HRB): ≤100 (Annealed)
Density (g/cm³)	8.64
Melting Range (°C)	1325–1370
Thermal Conductivity (W/m·K)	11.5 (at 20°C)
Thermal Expansion (10⁻⁶/°C)	12.6 (20–100°C)
Electrical Resistivity (Ω·m)	1.28 × 10⁻⁶ (at 20°C)
Elastic Modulus (GPa)	205
Magnetic Permeability	Non-magnetic
Corrosion Resistance	Excellent resistance to oxidizing and reducing acids (HCl, H₂SO₄, H₃PO₄), 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, nuclear fuel reprocessing coils, sulfuric acid production, pickling tanks.

C4 Hastelloy® Alloy Coil (UNS N06455) Applications

Industry	Critical Use Cases	C4 Hastelloy Coil Advantage
Chemical Processing	Sulfuric acid concentrators, pickling tanks	0.005mm/year corrosion rate in 98% H₂SO₄ at 60°C.
Pollution Control	Flue gas desulfurization (FGD) scrubbers	Resists 15% HCl + 5% HF at 80°C (176°F).
Nuclear Fuel	Spent fuel reprocessing equipment	Immune to nitric acid corrosion up to 90% concentration.
Oil & Gas	Sour gas pipelines, acidizing tools	Survives H₂S >30,000 ppm + CO₂ at 150°C (302°F).

C4 Hastelloy® Alloy Coil (UNS N06455) Product Packaging

C4 Hastelloy® Alloy Coil (UNS N06455) 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。