Z702 Titanium Alloy Coil (Ti-0.2Pd, Grade 7) | Unrivaled Corrosion Resistance in Reducing Acid Environments

✓ Reducing Acid Dominance: Resists 20% HCl, 15% H₂SO₄, and phosphoric acid with **<0.015mm/year corrosion rate** at 80°C (176°F).

✓ Crevice Corrosion Immunity: Withstands chloride-rich brine (Cl⁻ >50,000 ppm) and marine biofouling without degradation.

✓ High-Temperature Stability: Maintains 345 MPa tensile strength at 200°C (392°F) for prolonged exposure.

✓ Precision Formability: Cold-rolled to **±0.05mm thickness tolerance** with Ra ≤0.8μm surface finish for seamless stamping and welding.

Z702 Titanium Alloy Coil (Ti-0.2Pd, Grade 7)

Engineered for extreme chemical, marine, and offshore applications, Z702 titanium alloy coil (Grade 7) combines titanium’s lightweight strength with 0.2% palladium for superior performance in reducing acids, chlorides, and crevice corrosion. Certified to ASTM B863, ASME SB-338, and NACE MR0175, Z702 coil offers 10x longer lifespan than 316L stainless steel in 15% HCl at 60°C (140°F) while being 40% lighter than steel, making it ideal for continuous fabrication in harsh environments.

Thickness: 0.1mm–6.0mm
Width: 100mm–1,500mm (slitting tolerance ±0.2mm)
Surface Finish: Mill finish (Ra 3.2μm), Pickled (Ra ≤1.6μm), Polished (Ra ≤0.8μm)
Mechanical Properties: Yield Strength ≥345 MPa | Tensile Strength ≥483 MPa | Elongation ≥20% | Hardness ≤200 HV

Parameter Category	Value/Description
Material Standard	ASTM B352 (Zirconium Alloy Coil), UNS R60702, ISO 16143-2 (Nuclear Grade)
Chemical Composition (%)	Zr + Hf ≥99.2, Sn 1.2–1.7, Fe 0.07–0.20, Cr 0.05–0.15, Ni 0.03–0.08, C ≤0.05, H ≤0.005, N ≤0.025, O ≤0.16
Tensile Strength (MPa)	≥379 (Annealed)
Yield Strength (MPa)	≥207 (Annealed)
Elongation (%)	≥16 (in 50mm gauge length)
Hardness	Brinell (HBW): 140–180; Rockwell (HRB): 70–85
Density (g/cm³)	6.55
Melting Point (°C)	~1852
Thermal Conductivity (W/m·K)	22 (at 20°C)
Thermal Expansion (10⁻⁶/°C)	5.8 (20–100°C)
Electrical Resistivity (Ω·m)	0.40 × 10⁻⁶ (at 20°C)
Elastic Modulus (GPa)	99
Corrosion Resistance	Exceptional resistance to high-temperature water, steam, acidic/alkaline solutions, and nuclear radiation environments.
Heat Treatment	Annealing: 700–800°C (vacuum or inert gas). Stress relief: 500–600°C.
Surface Finishes	Bright Annealed (BA), Pickled, or Cold-Rolled Finish.
Coil Dimensions	– Thickness: 0.1mm–4.0mm – Width: 50mm–1200mm – Inner Diameter (ID): 300mm–610mm – Outer Diameter (OD): ≤2000mm.
Key Applications	Nuclear reactor fuel cladding, chemical processing coils, heat exchanger tubes, and corrosion-resistant equipment in aggressive media.

Z702 Titanium Alloy Coil (Ti-0.2Pd, Grade 7) Applications

Industry	Critical Use Cases	Z702 Titanium Coil Advantage
Chemical Processing	Hydrochloric acid reactors, pickling lines	<0.015mm/year corrosion in 20% HCl at 80°C (176°F).
Marine Engineering	Seawater desalination tubing, offshore rigs	Immune to crevice corrosion in 50,000 ppm Cl⁻ brine.
Oil & Gas	Sour gas pipelines, subsea umbilicals	Resists H₂S >5,000 ppm and CO₂ corrosion at 120°C (248°F).
Nuclear	Reactor coolant systems, spent fuel storage	Withstands neutron irradiation and acidic corrosion.

Z702 Titanium Alloy Coil (Ti-0.2Pd, Grade 7) Product Packaging

Z702 Titanium Alloy Coil (Ti-0.2Pd, Grade 7) (Grades Ti-6Al-4V/CP-Ti, ASTM B863/AMS 4954 compliant) are engineered for high-performance applications in aerospace, medical devices, and marine systems, offering unmatched strength-to-weight ratios, biocompatibility, and resistance to seawater corrosion. To ensure flawless surface integrity and dimensional stability during global transit, we deploy aerospace-certified packaging systems and logistics protocols compliant with AMS 4954, ISO 5832-2, and MIL-STD-129 standards.

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