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

✓ 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.

✓ Weldability & Formability: Achieves 20% elongation for seamless fabrication into complex geometries.

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

Engineered for extreme chemical processing, marine, and offshore applications, Z702 titanium alloy plate (Grade 7) delivers unrivaled resistance to reducing acids, chlorides, and crevice corrosion. With a unique titanium-palladium alloy composition (Ti-99.8%, Pd-0.2%), it outperforms Grades 2 (TA2) and 12 (TA10) in hydrochloric acid, sulfuric acid, and seawater environments at elevated temperatures. Certified to ASTM B265, ASME SB-265, and NACE MR0175, Z702 offers 10x longer service life than 316L stainless steel in 10% HCl at 60°C (140°F) while maintaining 40% lighter weight than steel.

Thickness: 0.5mm–80mm
Sizes: 1,000mm x 2,000mm (standard) / custom-cut
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 Plate/Sheet), R60702 (UNS), 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	Mill finish, Pickled, Polished (Ra ≤0.8μm), or Sandblasted.
Plate Dimensions	– Thickness: 0.5mm–50mm – Width: 300mm–1500mm – Length: 1000mm–4000mm (customizable).
Key Applications	Nuclear reactor cladding, fuel rods, chemical processing equipment, and components in high-temperature corrosive environments.

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

Industry	Critical Use Cases	Z702 Titanium Plate Advantage
Chemical Processing	Hydrochloric acid reactors, pickling tanks	<0.015mm/year corrosion in 20% HCl at 80°C (176°F).
Marine Engineering	Seawater desalination plants, 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).
Pollution Control	Flue gas desulfurization (FGD) systems	Withstands pH 1–3 acidic slurries at 90°C (194°F).

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

Z702 Titanium Alloy Plate (Ti-0.2Pd, Grade 7) (Grades Ti-6Al-4V/CP-Ti, ASTM B265/AMS 4911 compliant) are engineered for critical applications in aerospace, medical implants, and marine engineering, offering exceptional strength-to-weight ratios, biocompatibility, and resistance to seawater corrosion. To preserve surface purity and dimensional accuracy during transit, we deploy aerospace-certified packaging systems and logistics protocols compliant with AMS 4928, ISO 5832-2, and MIL-STD-129 standards.

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。

Z702 Titanium Alloy Plate (Ti-0.2Pd, Grade 7) 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 Z702 differ from TA10 (Grade 12) titanium?

A: Z702 (Grade 7) adds 0.2% palladium for superior resistance to reducing acids (HCl, H₂SO₄), while TA10 (Grade 12) uses Mo/Ni for broader industrial use.

Q2: What welding methods prevent contamination?

Use GTAW (TIG) with ERTi-7 filler rod under argon shielding gas (dew point ≤-50°C) to avoid oxidation.

Q3: Are plates certified for sour service in oil & gas?

Full compliance includes: