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Grade 1 & Grade 2 titanium sheets — the industry benchmark for seawater corrosion resistance, offshore structural panels, and deep-sea equipment fabrication.
In the harshest marine and offshore environments — from deep-sea exploration vessels to floating production platforms — material performance is non-negotiable. Grade 1 and Grade 2 commercially pure titanium sheets have become the gold standard for engineers and procurement specialists worldwide.
Grade 1 and Grade 2 titanium form a stable, self-healing TiO₂ passive oxide layer that provides exceptional resistance to chloride-induced corrosion, pitting, and crevice attack — even in high-salinity deep-ocean environments and warm tropical seawater where stainless steels fail rapidly.
At approximately 60% the density of steel yet comparable tensile strength, titanium sheets dramatically reduce the structural dead weight of offshore platforms, FPSOs, and subsea equipment — translating directly into lower fuel consumption, reduced foundation loads, and extended operational life.
Unlike copper-nickel alloys, titanium does not leach toxic ions into marine ecosystems. Its surface chemistry resists biofouling adhesion, reducing maintenance intervals and antifouling coating requirements — a critical advantage for environmentally regulated offshore zones.
From Arctic subsea pipelines operating near 0°C to tropical offshore heat exchangers exceeding 200°C, Grade 1 and Grade 2 titanium maintain consistent mechanical properties, ensuring structural reliability across the full spectrum of marine thermal cycles.
While the initial material cost exceeds conventional alloys, titanium's near-zero corrosion maintenance, 30+ year service life, and elimination of cathodic protection systems deliver a compelling total cost of ownership advantage for offshore operators calculating lifecycle economics.
Available in thicknesses from 0.3 mm to 100 mm and widths up to 3,000 mm, Grade 1 and Grade 2 sheets per ASTM B265 offer full fabrication flexibility — supporting cold rolling, hot rolling, welding, and precision machining for custom offshore component manufacturing.
Selecting the right grade is critical for offshore and marine project success. Here is a comprehensive technical comparison to guide material specification.
Highest purity CP titanium — maximum formability & corrosion resistance
| Property | Value / Description |
|---|---|
| Purity | ≥99.5% Ti (lowest interstitial content) |
| Tensile Strength (min) | 240 MPa |
| Yield Strength (min) | 170 MPa |
| Elongation (min) | 24% |
| Density | 4.51 g/cm³ |
| Corrosion Resistance | Excellent — ideal for aggressive seawater |
| Formability | Highest — best for complex shaped marine components |
| Standard | ASTM B265 Grade 1 |
| Marine Application | Desalination membranes, seawater heat exchangers, thin-wall tubing, marine chemical tanks |
Most widely used CP titanium — optimal balance of strength & corrosion resistance
| Property | Value / Description |
|---|---|
| Purity | ≥99.2% Ti (slightly higher interstitials) |
| Tensile Strength (min) | 345 MPa |
| Yield Strength (min) | 275 MPa |
| Elongation (min) | 20% |
| Density | 4.51 g/cm³ |
| Corrosion Resistance | Excellent — broad seawater & chemical resistance |
| Formability | Very good — suitable for most fabrication processes |
| Standard | ASTM B265 Grade 2 |
| Marine Application | Offshore platform decking, subsea pipelines, FPSO hull cladding, marine heat exchangers, riser systems |
The global marine-grade titanium market is experiencing accelerated growth driven by deepwater exploration expansion, offshore wind energy buildout, and increasingly stringent environmental regulations. Understanding these macro trends is essential for procurement and engineering decision-makers.
Global offshore oil and gas exploration is moving into deeper waters — exceeding 3,000 meters in the Gulf of Mexico, Brazilian pre-salt basins, and West African deepwater blocks. At these depths, hydrostatic pressures exceed 30 MPa and seawater temperatures approach near-freezing levels, creating conditions where only titanium and high-performance nickel alloys provide reliable long-term performance. Grade 2 titanium sheets are increasingly specified for subsea manifold housing panels, riser clamp structures, and umbilical termination assemblies in deepwater projects.
The global offshore wind capacity is projected to exceed 300 GW by 2030, with massive installations across the North Sea, Taiwan Strait, and US Atlantic coast. Titanium Grade 1 and Grade 2 sheets are finding significant new applications in monopile transition piece cladding, inter-array cable protection conduits, and offshore substation seawater cooling systems — where the combination of saltwater corrosion resistance and 25+ year maintenance-free performance aligns perfectly with wind farm operational economics.
Major naval powers including the US, UK, China, Japan, and South Korea are actively incorporating titanium alloy structures into next-generation submarine pressure hulls, surface combatant sonar domes, and underwater unmanned vehicle (UUV) pressure casings. Grade 1 titanium's non-magnetic properties and Grade 2's higher strength make both grades strategically important for defense maritime procurement programs with multi-year, high-volume supply requirements.
With freshwater scarcity driving a global desalination infrastructure investment exceeding $30 billion annually, titanium Grade 1 sheets have become the dominant material for reverse osmosis (RO) pressure vessel end caps, multi-effect distillation (MED) evaporator plates, and seawater intake screening systems. The combination of chloride immunity, thermal conductivity, and food-grade purity makes Grade 1 titanium irreplaceable in large-scale desalination projects across the Middle East, Southeast Asia, and North Africa.
The global FPSO fleet is expanding rapidly, with over 40 new units under construction or on order. Each FPSO requires extensive titanium material for seawater lift pump casings, ballast water treatment system components, fire water main piping, and topside heat exchanger bundles. Grade 2 titanium sheets in thicknesses from 3 mm to 25 mm are the standard specification for these applications, with leading FPSO contractors in Singapore, South Korea, and Brazil consistently sourcing from certified titanium mills.
The expansion of autonomous underwater vehicle (AUV) and remotely operated vehicle (ROV) programs for scientific ocean mapping, mineral resource assessment, and environmental monitoring is creating specialized demand for ultra-thin Grade 1 titanium sheets used in pressure-compensated electronics housing panels, acoustic transducer mounting frames, and deep-sea sampling chamber walls — applications requiring precision tolerances to ±0.05 mm and surface finishes meeting Ra ≤0.8 μm specifications.
Beyond standard corrosion-resistant applications, Grade 1 and Grade 2 titanium sheets are enabling next-generation engineering solutions across the full spectrum of marine exploration and offshore project disciplines.
The splash zone — the cyclically wet and dry interface between sea surface and platform structure — is the most aggressive corrosion environment on any offshore installation. Grade 2 titanium sheets (typically 3–8 mm thick) bonded or mechanically fastened to structural steel in splash zones eliminate the need for sacrificial anode systems and epoxy coating maintenance programs, delivering documented 30-year service life with zero corrosion degradation in North Sea and Gulf of Mexico field installations.
Grade 1 titanium's thermal conductivity (21.9 W/m·K), combined with its absolute immunity to seawater chloride corrosion, makes it the definitive material for plate heat exchangers in offshore HVAC systems, power generation cooling circuits, and process seawater cooling. Thin-gauge Grade 1 sheets (0.3–1.5 mm) are precision-rolled and formed into corrugated heat transfer plates achieving heat transfer coefficients comparable to stainless steel at a fraction of the maintenance cost.
Subsea production systems operating at water depths beyond 1,500 meters require materials that maintain mechanical integrity under extreme hydrostatic pressure, near-freezing temperatures, and exposure to formation water containing H₂S and CO₂. Grade 2 titanium sheets are fabricated into protective housing panels, cable tray systems, and secondary structural frames for subsea trees and manifolds, where their combination of corrosion resistance and weldability (per AWS A5.16 titanium filler wire standards) enables complex fabricated assemblies.
The transition piece connecting a monopile foundation to the wind turbine tower operates permanently in the tidal splash zone, subject to both seawater immersion and atmospheric salt spray. Grade 2 titanium sheet cladding panels applied to transition piece external surfaces eliminate the costly 5-year coating inspection and recoating cycle, with several major North Sea wind farm operators reporting maintenance cost reductions exceeding 40% over a 10-year operational period following titanium cladding installation.
Full-ocean-depth research instruments — including CTD (conductivity, temperature, depth) sensor arrays, acoustic Doppler current profilers, and deep-sea camera systems — require pressure housings capable of withstanding 110 MPa at 11,000 m (full Mariana Trench depth). Grade 1 titanium's superior ductility and Grade 2's higher strength are both utilized depending on wall thickness optimization calculations, with precision-machined titanium sheet rolled and welded into cylindrical housings meeting ASTM B265 dimensional tolerances.
IMO Ballast Water Management Convention compliance has driven rapid installation of UV and electrochlorination ballast water treatment systems aboard commercial vessels and offshore units. Both systems require titanium Grade 1 electrode plates (for electrochlorination) and Grade 2 reaction chamber liners (for UV systems) due to the highly oxidizing, chlorine-rich treatment environment. The global BWT system retrofit market represents a significant and growing demand segment for thin-gauge titanium sheet in the range of 0.5–3 mm thickness.
We have multiple products for you to choose from
Grade: GR1, GR2
Standards: ASTM B265
Specifications: δ(0.3-12)mm × W500-2000mm × L
Surface: Cold rolled bright, cold rolled pickled, hot rolled pickled, black oxide
View moreGrade: GR1, GR2
Standards: ASTM B265
Specifications: δ(0.3-100mm) × W(400-3000mm) × L(800-20,000mm)
Surface: Cold-rolled bright, acid-washed, sandblasted | Condition: Annealed
View moreGrade: GR1, GR2, GR7, GR12
Standards: ASTM B265
Specifications: δ(12-75mm) × W(1500-2500mm) × L(1000-12,000mm)
Custom request size available.
View moreGrade: Ti6Al4V, Ti6Al4V ELI, GR5, GR23
Standards: ASTM B265
Specifications: δ(0.5-75mm) × W(400-3000mm) × L(800-60,000mm)
Available on custom request.
View more
Grade: Ti-5Al-2.5Sn
Standard: ASTM B265
Specifications: δ(0.5-50mm) × W(500-1500mm) × L(1000-20,000mm)
Meet customization requests.
View moreWe have multiple products for you to choose from — Read more
In the chemical industry, titanium is widely used against highly corrosive media such as chlor-alkali and sulphuric acid. It ensures efficient and safe chemical production, prevents material leakage, and guarantees product quality.
Supplies provide the high-strength, corrosion-resistant titanium materials for exploration, production and refining oil. Critical for offshore riser systems, subsea manifolds, and wellhead components.
Corrosion resistance in seawater and brackish applications make titanium the material of choice in marine applications — from naval vessels to offshore wind foundations and deep-sea exploration equipment.
Titanium improves efficiency and extends the life of desalination equipment due to its corrosion resistance, high strength, light weight, and good thermal conductivity — essential for RO and MED systems.
Founded in 2001, ProX Metal is a high-tech enterprise specialising in the development, production and servicing of pure and alloy titanium materials. As a leading manufacturer of raw titanium materials, we focus on providing cost-effective, stable, high-end titanium materials applied in chemical, oil and gas, marine and electronics fields. We are ISO 9001:2015 certified and hold 14 national patents.
ProX Metal possesses a complete titanium metal production chain, equipped with over 100 advanced machines, achieving an annual output of 8,000 tons of pure titanium and alloy materials. We offer comprehensive solutions spanning from standard products to customized offerings.
ProX Metal is certified to ISO 9001:2015, with its quality system and product lines undergoing regular certification audits. We have implemented a rigorous quality management system meeting stringent excellence standards for titanium raw material production.
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We've been working with this supplier for 10 years, and we can't speak highly enough of them. The quality of their titanium sheets and strips is always consistent, and they always meet our production needs.
Their logistics are super fast, so they can deliver on time even for big orders. This helps us avoid production delays, which is a huge help.
Their comprehensive inventory meets our diverse material grade requirements, making them highly accommodating for distributors like us. They provide efficient and patient service for sample orders, and we look forward to expanding our collaboration.
Explore our full range of marine-grade titanium materials — bars, rods, billets, foil, wire, plates, precision parts, and more — all available with custom specifications.
